AASLD PRACTICE GUIDELINE
Management of Adult Patients With Ascites Due to
Cirrhosis
Bruce A. Runyon
atric data base is much smaller and there may be unantic-
Preamble
ipated differences between adults and children. Patients
These recommendations provide a data-supported ap-
with ascites that is detected by imaging modalities but is
proach. They are based on the following: (1) formal re-
not yet clinically evident are not included because of the
view and analysis of the recently published world
lack of published information regarding the natural his-
literature on the topic (Medline search); (2) the American
tory of this entity.
College of Physicians Manual for Assessing Health Prac-
tices and Designing Practice Guidelines1; (3) policy guide-
Background
lines, including the American Association for the Study of
Cirrhosis was the tenth leading cause of death in the
Liver Diseases Policy Statement on Development and
United States, according to a 2000 Vital Statistics Report,
Use of Practice Guidelines and the American Gastroen-
in which data was collected through 1998.4 Ascites is the
terological Association s Policy Statement on the Use of
most common of the 3 major complications of cirrhosis;
Medical Practice Guidelines,2,3; and (4) the author s 22
the other complications are hepatic encephalopathy and
years of experience in the clinical and laboratory investi-
variceal hemorrhage.5 Approximately 50% of patients
gation of, and care of patients with, this problem, includ-
with  compensated cirrhosis, i.e., without having devel-
ing 7 years experience in a liver unit in which
oped one of these complications, develop ascites during
approximately 60% of patients have ascites.
10 years of observation.5 Development of fluid retention
Intended for use by physicians, these recommenda-
in the setting of cirrhosis is an important landmark in the
tions suggest preferred approaches to the diagnostic, ther-
natural history of chronic liver disease: approximately
apeutic, and preventative aspects of care. They are
50% of patients with ascites succumb in 2 years.6 Many
intended to be flexible, in contrast to standards of care,
patients are referred for liver transplantation after devel-
which are inflexible policies designed to be followed in
opment of ascites.
every case. Specific recommendations are based on rele-
vant published information. Cost-effectiveness and cost-
Literature Review
benefit data should be incorporated in the appropriate
setting. In an attempt to characterize the quality of evi- A Medline search from 1966 through 2002 was per-
dence supporting recommendations, the Practice Guide- formed; search terms included ascites, diet therapy, drug
therapy, radiotherapy, surgery, and therapy. The search
lines Committee of the American Association for the
involved only papers published in English and involving
Study of Liver Diseases requires a grade to be assigned and
humans. A manual search of the author s files was also
reported with each recommendation (Table 1).
performed. The search yielded 1,867 papers including
These guidelines were developed for the care of adult
411 published since a similar search was performed in
patients with clinically detectable ascites. Although the
1997 in preparation for writing the previous guideline on
general approach may be applicable to children, the pedi-
ascites.7
Abbreviations: SAAG, serum-ascites albumin gradient; PMN, polymorphonu- Evaluation and Diagnosis
clear leukocyte; TIPS, transjugular intrahepatic portasystemic stent-shunt; SBP,
History
spontaneous bacterial peritonitis.
Most patients (approximately 85%) with ascites in the
From the Rancho Los Amigos Medical Center, Downey, CA.
Received September 9, 2003; accepted September 17, 2003.
United States have cirrhosis.8 In about 15% of patients
This is a revised and updated guideline based on the previously published version
with ascites, there is a nonhepatic cause of fluid retention.
(HEPATOLOGY 1998;27:264 272).
Successful treatment is dependent on an accurate diagno-
Address reprint requests to: Bruce A. Runyon, M.D., Chief, Liver Service, Loma
Linda University Medical Center, 11234 Anderson Street, Room 1556, Loma
sis of the cause of ascites; e.g., peritoneal carcinomatosis
Linda, CA 92354. E-mail: brunyon@ahs.llumc.edu; fax: 909-558-0274.
does not respond to diuretic therapy. Patients with ascites
Copyright © 2004 by the American Association for the Study of Liver Diseases.
should be questioned about risk factors for liver disease.
Published online in Wiley InterScience (www.interscience.wiley.com).
DOI 10.1002/hep.20066 Those who lack an apparent cause for cirrhosis should also
1
2 RUNYON HEPATOLOGY, March 2004
Table 1. Quality of Evidence on Which a Recommendation Is
the hospital, an admission surveillance tap may detect
Based*
unexpected infection.14
Grade Definition Although older published series reported a relatively
high morbidity, and even mortality, when trocars were
I Randomized controlled trials
II-1 Controlled trials without randomization used for paracentesis, more recent studies regarding para-
II-2 Cohort or case-control analytic studies
centesis complications in patients with ascites docu-
II-3 Multiple time series, dramatic uncontrolled experiments
mented no deaths or infections caused by the
III Opinions of respected authorities; descriptive epidemiology
paracentesis.15 Complications were reported in only
*Data from Woolf and Sox.3
about 1% of patients (abdominal wall hematomas), de-
spite the fact that 71% of the patients had an abnormal
prothrombin time.15 Although more serious complica-
be questioned about lifetime body weight; nonalcoholic
tions (hemoperitoneum or bowel entry by the paracente-
steatohepatitis has been concluded to be causative in
sis needle) occur,16 they are sufficiently unusual
many of these patients.9 Past history of cancer, heart fail-
( 1/1,000 paracenteses) that they should not deter per-
ure, or tuberculosis is also relevant. Hemophagocytic syn-
formance of this procedure. It is the practice of some
drome can masquerade as cirrhosis with ascites.10 These
physicians to give blood products (fresh frozen plasma
patients have fever, jaundice, and hepatosplenomegaly,
and/or platelets) routinely before paracentesis in cirrhotic
usually in the setting of lymphoma or leukemia.10
patients with coagulopathy. This policy is not data-sup-
ported. The risks and costs of prophylactic transfusions
Physical Examination
exceed the benefit.
The presence of a full, bulging abdomen should lead to
In the past, the midline was usually chosen as the site
percussion of the flanks. If the amount of flank dullness is
for paracentesis. However, the abdominal wall in the left
greater than usual (i.e., if the percussed air-fluid level is
lower quadrant, 2 finger breadths cephalad and 2 finger
higher than normally found on the lateral aspect of the
breadths medial to the anterior superior iliac spine, has
abdomen with the patient supine), one should test for
been shown to be thinner and with a larger pool of fluid
 shifting. Approximately 1,500 mL of fluid must be
than the midline.17 If the fluid is difficult to localize by
present before flank dullness is detected.11 If no flank
examination because of obesity, ultrasonography can be
dullness is present, the patient has less than a 10% chance
useful.
of having ascites.11 The fluid wave and puddle sign are not
There are few contraindications to paracentesis. Co-
useful.11 Ascites due to alcoholic cardiomyopathy can
agulopathy should preclude paracentesis only when there
mimic that due to alcoholic cirrhosis. Jugular venous dis-
is clinically evident fibrinolysis or clinically evident dis-
tension is present in the former but not in the latter.
seminated intravascular coagulation.15 These conditions
The physical examination for detecting ascites in the
occur in less than 1 per 1,000 procedures. There is no
obese patient is problematic. An abdominal ultrasound
data-supported cutoff of coagulation parameters beyond
may be required to determine with certainty if fluid is
which paracentesis should be avoided.15
present.
The diagnosis of new-onset ascites is suspected on the
Recommendations
basis of the history and physical examinationand usually
1. Abdominal paracentesis should be performed and
confirmed by successful abdominal paracentesis and/or
ascitic fluid should be obtained from inpatients and out-
ultrasound. The diagnosis of the cause of ascites forma-
patients with clinically apparent new-onset ascites.
tion is based on the results of the history, physical, and
(Grade II-3)
ascitic fluid analysis. In general, few other tests are re-
2. Since bleeding is sufficiently uncommon, the pro-
quired. However, the liver is commonly imaged (usually
phylactic use of fresh frozen plasma or platelets before
with ultrasound) to screen for hepatocellular carcinoma,
paracentesis is not recommended. (Grade III)
portal vein thrombosis, and hepatic vein thrombosis.
Ascitic Fluid Analysis
Abdominal Paracentesis
Abdominal paracentesis with appropriate ascitic fluid Future outcomes studies are required to determine the
analysis is probably the most rapid and cost-effective optimal testing strategy. Meanwhile, an algorithm ap-
method of diagnosing the cause of ascites.12,13 Fluid due proach seems preferable to ordering a large number of
to portal hypertension can be readily differentiated from tests on most specimens. If uncomplicated cirrhotic as-
fluid due to other causes.8 Also, in view of the high prev- cites is suspected, only screening tests (e.g., cell count and
alence of ascitic fluid infection at the time of admission to differential, albumin and total protein concentration) are
HEPATOLOGY, Vol. 39, No. 3, 2004 RUNYON 3
performed on the initial specimen. If the results of these carcinomatosis.26 The sensitivity of cytology in detecting
tests are unexpectedly abnormal, further testing can be peritoneal carcinomatosis is 96.7% if 3 samples are sent
performed on another ascitic fluid sample. Also, many and processed promptly; the first sample is positive in
laboratories save an aliquot of fluid for a few days; this
82.8% and at least 1 of 2 samples is positive in 93.3%.26
fluid can be tested if the specimen has been handled prop- In this study, 50 mL of fresh warm ascitic fluid were
erly. However, since most specimens are consistent with
hand-carried to the laboratory for immediate processing.
uncomplicated cirrhotic ascites, no further testing will be
Patients with peritoneal carcinomatosis usually have a his-
needed in the majority of patients.
tory of a breast, colon, gastric, or pancreatic primary car-
If ascitic fluid infection is suspected (fever, abdominal
cinoma. The sensitivity of smear for mycobacteria is
pain, or unexplained encephalopathy), bacterial culture in
approximately 0%; the sensitivity of fluid culture for my-
blood culture bottles should be performed. Use of a urine
cobacteria is approximately 50%.27 Only patients at high
dipstick to detect neutrophils in ascitic fluid takes only 90
risk for tuberculous peritonitis (e.g., recent immigration
seconds to 2 minutes; if confirmed by other studies, this
from an endemic area or acquired immunodeficiency syn-
may become a routine method of providing early suspi-
drome)28 should have testing for mycobacteria on the first
cion of infection.18,19 Automated cell counting has been
ascitic fluid specimen. Laparoscopy with biopsy and my-
shown to be accurate; the result is rapidly available and
cobacterial culture of tubercles are the most rapid and
thus may replace the manual cell count.20 Additional test-
accurate methods of diagnosing tuberculous peritonitis.
ing, e.g., total protein, lactate dehydrogenase, and glucose
Multiple prospective trials have shown that bacterial
to assist in differentiating spontaneous from secondary
growth occurs in only about 50% of instances when as-
bacterial peritonitis, can be performed on the initial spec-
citic fluid with a polymorphonuclear leukocyte (PMN)
imen based on clinical judgment.21 An ascitic fluid carci-
count greater than or equal to 250cells/mm3 (0.25
noembryonic antigen greater than 5 ng/mL or ascitic fluid
109/L) is cultured by older methods as compared to ap-
alkaline phosphatase greater than 240 units/L has also
proximately 80% if the fluid is inoculated into blood
been shown to be accurate in detecting gut perforation
culture bottles at the bedside.29,30
into ascitic fluid.22
The serum-ascites albumin gradient (SAAG) has been
Recommendations
proved in prospective studies to categorize ascites better
3. The initial laboratory investigation of ascitic fluid
than the total-protein-based exudate/transudate concept
should include an ascitic fluid cell count and differential,
and better than modified pleural fluid exudate/transudate
ascitic fluid total protein, and SAAG. (Grade II-2)
criteria.8,23 Calculating the SAAG involves measuring the
4. If ascitic fluid infection is suspected, ascitic fluid
albumin concentration of serum and ascitic fluid speci-
should be cultured at the bedside in blood culture bottles.
mens obtained on the same day and subtracting the ascitic
(Grade II-2)
fluid value from the serum value. If the SAAG is greater
5. Other studies can be ordered based on pretest
than or equal to 1.1 g/dL (11g/L), the patient has portal
hypertension, with approximately 97% accuracy.8 Pa- probability of disease (Table 2). (Grade III)
tients who have portal hypertension plus a second cause
for ascites formation also have a SAAG greater than or
Differential Diagnosis
equal to 1.1g/dL.
Although cirrhosis is the cause of ascites formation in
Patients undergoing serial outpatient therapeutic para-
most patients, approximately 15% have a cause other than
centeses probably should be tested only for cell count and
liver disease, including cancer, heart failure, tuberculosis,
differential (the author has detected 8 episodes of sponta-
or nephrotic syndrome.8 Approximately 5% of patients
neous bacterial peritonitis in approximately 400 paracen-
with ascites have 2 or more causes of ascites formation,
teses in a paracentesis clinic in 2 years [Zeid Kayali, Reza
i.e.,  mixed ascites.8 Usually, these patients have cirrhosis
Khoshini, B.A.R., outpatient management of refractory
plus 1 other cause, e.g., peritoneal carcinomatosis or peri-
ascites, unpublished observations, 2003]). Bacterial cul-
toneal tuberculosis. Many patients with enigmatic ascites
ture is not necessary in asymptomatic patients undergoing
are eventually found to have 2 or even 3 causes for ascites
serial large-volume paracenteses.24,25
formation (e.g., heart failure, diabetic nephropathy, and
The most expensive tests are the cytology and smear
cirrhosis due to nonalcoholic steatohepatitis). In this set-
and culture for mycobacteria; these tests should probably
ting, the sum of predisposing factors leads to sodium and
be ordered only when there is a high pretest probability of
occurrence of the disease under consideration. The ascitic water retention when each individual factor might not be
fluid cytology is positive only in the setting of peritoneal severe enough to cause fluid overload.
4 RUNYON HEPATOLOGY, March 2004
Table 2. Ascitic Fluid Laboratory Data*
Routine Optional Unusual Unhelpful
Cell count and differential Culture in blood culture bottles AFB smear and culture pH
Albumin Glucose Cytology Lactate
Total protein Lactate dehydrogenase Triglyceride Cholesterol
Amylase Bilirubin Fibronectin
Gram s stain Glycosaminoglycans
Abbreviation: AFB, acid-fast bacteria.
*Adapted from Runyon.13 Reprinted with permission from W.B. Saunders.
to follow when rapidity of weight loss is less than de-
Treatment of Ascites
sired.12,13 Random urinary sodium concentrations are of
Appropriate treatment of patients with ascites depends
value when they are 0 mmol/L or greater than 100
on the cause of fluid retention. SAAG can be helpful
mmol/L but are much less helpful when they are interme-
diagnostically as well as in decision-making regarding
diate because of lack of uniformity of sodium excretion
treatment. Patients with low SAAG ascites usually do not
during the day and lack of knowledge of total urine vol-
have portal hypertension and, with the exception of ne-
ume, which may vary from 300 mL to greater than 3000
phrotic syndrome, do not respond to salt restriction and
mL. Twenty-four-hour collections of urine for determi-
diuretics.13 In contrast, patients with a high SAAG have
nation of sodium excretion are much more informative
portal hypertension and usually are responsive to these
than random specimens; however, full-day collections are
measures.13
cumbersome. Providing patients with verbal and written
The remainder of this guideline is applicable only to
instructions, a container, and a lab order slip to turn in
patients with cirrhosis as the cause of their ascites. Im-
with the completed specimen helps insure compliance.
provement in the outcome of patients with nonportal-
Completeness of collection of the 24-hour specimen can
hypertension-related ascites depends on successful
be assessed by measurement of urinary creatinine. Cir-
treatment of the underlying disorder.
rhotic men should excrete more than 15 mg of creatinine
Alcohol-induced liver injury is perhaps the most re-
per kilogram of body weight per day, and women should
versible cause of liver disease that leads to high albumin
excrete more than 10 mg/kg per day.33 Less creatinine is
gradient ascites.13 One of the most important steps in
indicative of an incomplete collection. Total nonurinary
treating ascites in this setting is to treat the underlying
sodium excretion is less than 10 mmol per day in afebrile
liver disease by convincing the patient to stop drinking
cirrhotic patients without diarrhea.34 One of the goals of
alcohol. In a period of months, abstinence can result in
treatment is to increase urinary excretion of sodium so
dramatic improvement in the reversible component of
that it is greater than 78 mmol per day (88 mmol intake
alcoholic liver disease. One recent study demonstrates
per day 10 mmol nonurinary excretion per day). Only the
that patients who have Child-Pugh C cirrhosis due to
10% to 15% of patients who have spontaneous natriuresis
alcohol and who stop drinking have an approximately
greater than 78 mmol per day can be considered for dietary
75% 3-year survival, but all those who continue to drink
sodium restriction alone (i.e., without diuretics). However,
die in 3 years.31 Ascites may resolve or become more re-
when given a choice, most patients would prefer to take some
sponsive to medical therapy with abstinence and time.
diuretics and have a more liberal sodium intake than take
Nonalcoholic liver diseases are less reversible; by the time
no pills and have a more severe sodium restriction.
ascites is present, these patients may be better candidates
A random  spot urine sodium concentration that is
for liver transplantation than protracted medical therapy.
greater than the potassium concentration correlates with a
The mainstays of treatment of patients with cirrhosis
24-hour sodium excretion greater than 78 mmol per day
and ascites include (1) education regarding dietary so-
with approximately 90% accuracy.35 This urine sodium/
dium restriction (2000 mg per day [88 mmol per day])
potassium ratio may replace the cumbersome 24-hour
and (2) oral diuretics.12,13 More stringent dietary sodium
collection.
restriction can speed mobilization of ascites. Fluid loss
Fluid restriction is not necessary in treating most pa-
and weight change are directly related to sodium balance
tients with cirrhosis and ascites. The chronic hyponatre-
in patients with portal-hypertension-related ascites. It is
sodium restriction, not fluid restriction, which results in mia usually seen in cirrhotic ascites patients is seldom
weight loss; fluid follows sodium passively.32 Measure- morbid. Attempts to rapidly correct hyponatremia in this
ment of urinary sodium excretion is a helpful parameter setting with hypertonic saline can lead to more complica-
HEPATOLOGY, Vol. 39, No. 3, 2004 RUNYON 5
tions than the hyponatremia itself.36 Preliminary data for spironolactone in patients with tender gynecomastia.
suggest that aquaretic drugs have the promise of correct- However, amiloride is more expensive and has been
ing hyponatremia. However, these agents have been un- shown to be less effective than an active metabolite of
der investigation for more than 10 years in the setting of spironolactone in a randomized controlled trial.42
cirrhosis and are not yet approved in the United States.37 Newer loop diuretics must be proven to be superior to
Efficacy without side effects in the subset of patients who current drugs before their expense can be justified. Al-
are in need of correction of hyponatremia remains un- though an intravenous dose of 80 mg of furosemide can
proven. Unfortunately, many drugs that have theoretical cause an acute reduction in renal perfusion and subse-
promise in treating ascites, e.g., angiotension-converting quent azotemia in patients with cirrhosis and ascites, this
enzyme inhibitors, have been shown to aggravate hypo- same dose has been shown in one study to separate di-
tension and have not been clinically useful. Severe hypo- uretic-resistant ( 50 mmol urine sodium in 8 hours)
natremia does warrant fluid restriction in the patient with from diuretic-sensitive patients ( 50 mmol).43 This in-
cirrhosis and ascites; however, there is no data-supported travenous furosemide  test may help speed detection of
specific threshold for initiating fluid restriction. A serum diuretic-resistant patients so that they can more rapidly be
sodium less than 120  125 mmol/L is a reasonable thresh- given second-line treatment options.43
old. Cirrhotic patients do not usually have symptoms In the largest, multicenter, randomized controlled trial
from hyponatremia until the sodium is below 110 performed in patients with ascites, this approach (dietary
mmol/L or unless the decline in sodium is very rapid. sodium restriction and dual diuretic regimen) has been
Although it is traditional to recommend bed rest shown to be effective in more than 90% of patients in
(based on extrapolation from heart failure), this is imprac- achieving a reduction in the volume of ascites to accept-
tical and there are no controlled trials to support this able levels.44
practice. Upright posture may aggravate the plasma renin Outpatient treatment can be attempted initially. How-
elevation found in cirrhotic patients with ascites. Theo- ever, some patients with cirrhosis and ascites also have
retically, this may increase sodium avidity. This theoreti- gastrointestinal hemorrhage, hepatic encephalopathy,
cal concern would have to translate into clinically relevant bacterial infection, and/or hepatocellular carcinoma, and
outcomes before bed rest could be advocated. may require hospitalization for definitive diagnosis and
The usual diuretic regimen consists of single morning management of their liver disease as well as management
doses of oral spironolactone and furosemide, beginning of their fluid overload. Frequently, intensive education is
with 100 mg of the former and 40 mg of the latter.12,13 required to convince the patient that the diet and diuretics
Previously, single-agent spironolactone was advocated, are actually effective and worth the effort.
but hyperkalemia and the long half-life of this drug have There is no limit to the daily weight loss of patients
resulted in its use as a single agent only in patients with who have massive edema. Once the edema has resolved,
minimal fluid overload.38 Single-agent furosemide has 0.5 kg is probably a reasonable daily maximum.45 En-
been shown in a randomized controlled trial to be less cephalopathy, serum sodium less than 120 mmol/L de-
efficacious than spironolactone.39 The good oral bioavail- spite fluid restriction, or serum creatinine greater than 2.0
ability of furosemide in the cirrhotic patient, together mg/dL (180 mol/L) should lead to cessation of diuret-
with the acute reductions in glomerular filtration rate as- ics, reassessment of the situation, and consideration of
sociated with intravenous furosemide, favor use of the oral second-line options.
route of administration.40,41 In the past, patients with ascites frequently occupied
The doses of both oral diuretics can be increased simul- hospital beds for prolonged periods of time because of
taneously every 3 to 5 days (maintaining the 100 mg:40 confusion regarding diagnosis and treatment and because
mg ratio) if weight loss and natriuresis are inadequate. In of iatrogenic problems. Although an abdomen without
general, this ratio maintains normokalemia. Usual maxi- clinically detectable fluid is a reasonable ultimate goal, it
mum doses are 400 mg per day of spironolactone and 160 should not be a prerequisite for discharge from the hospi-
mg per day of furosemide.12,13 Furosemide can be tempo- tal. Patients who are stable, with ascites as their major
rarily withheld in patients presenting with hypokalemia. problem, can be discharged to the clinic after it has been
Patients with parenchymal renal disease (e.g., diabetic ne- determined that they are responding to their medical reg-
phropathy or immunoglobulin A nephropathy) may tol- imen. However, in order for patients to be discharged
erate less spironolactone than usual because of early from the hospital, they should be seen in the outpa-
hyperkalemia. Single morning dosing maximizes compli- tient setting promptly, ideally within approximately 1
ance. Amiloride (10 40 mg per day) can be substituted week of discharge.
6 RUNYON HEPATOLOGY, March 2004
Management of Tense Ascites months may be appropriate. Intensive outpatient treat-
An initial large-volume paracentesis rapidly relieves ment, in particular with regard to diet education, may
tense ascites. A prospective study has demonstrated that a help prevent subsequent hospitalizations.
single 5-L paracentesis can be performed safely without Development of ascites as a complication of cirrhosis is
post-paracentesis colloid infusion in the patient with di- associated with a poor prognosis, approximately a 50%
uretic-resistant tense ascites.46,47 Larger volumes of fluid 2-year survival.6 Liver transplantation should be consid-
have been safely removed with the administration of in- ered in the treatment options for these patients.
travenous albumin (8 g/L of fluid removed).48 However,
Recommendations
large-volume paracentesis does nothing to correct the un-
6. Patients with ascites who are thought to have an
derlying problem that led to ascites formation, i.e., so-
alcohol component to their liver injury should abstain
dium retention. Large-volume paracentesis predictably
from alcohol consumption. (Grade II-2)
removes the fluid more rapidly (minutes) than does care-
7. First-line treatment of patients with cirrhosis and
ful diuresis (days to weeks).49 A single large-volume para-
ascites consists of sodium restriction (88 mmol per day
centesis followed by diet and diuretic therapy is
appropriate treatment for patients with tense ascites.46,49 [2000 mg per day]) and diuretics (oral spironolactone and
furosemide). (Grade I)
In the diuretic-sensitive patient, to serially remove fluid
8. Fluid restriction is not necessary unless serum so-
by paracentesis when it could be removed with diuretics
dium is less than 120-125 mmol/L. (Grade III)
seems inappropriate.
9. An initial therapeutic abdominal paracentesis
In order to prevent reaccumulation of fluid, sodium
should be performed in patients with tense ascites. So-
intake should be reduced and urinary sodium excretion
dium restriction and oral diuretics should then be initi-
should be increased with diuretics. Determining the op-
ated. (Grade II-3)
timal diuretic doses for each patient titrating the doses
10. Diuretic-sensitive patients should preferably be
upward every 3 5 days until natriuresis and weight loss
treated with sodium restriction and oral diuretics rather
are achieved can take some time.. The intravenous fu-
than with serial paracenteses. (Grade III)
rosemide  test may shorten this time; this should be
11. Liver transplantation should be considered in pa-
tested in the context of a randomized trial.43 Although a
tients with cirrhosis and ascites. (Grade II-3)
controlled trial has demonstrated that large-volume para-
centesis is faster than diuretic therapy for patients with
Refractory Ascites
cirrhosis and tense ascites, it should not be viewed as first-
line therapy for all patients with ascites.49
Refractory ascites is defined as fluid overload that (1) is
In the outpatient clinic, body weight, orthostatic
unresponsive to sodium-restricted diet and high-dose di-
symptoms, and serum electrolytes, urea, and creatinine
uretic treatment (400 mg per day of spironolactone and
are monitored. If weight loss is inadequate, a random spot
160 mg per day furosemide), or (2) recurs rapidly after
urine sodium/potassium ratio or 24-hour urine sodium
therapeutic paracentesis.50 Prostaglandin inhibitors such
can be measured. Patients who are excreting urine so- as nonsteroidal anti-inflammatory drugs can reduce uri-
dium/potassium greater than 1 or 24-hour urine sodium
nary sodium excretion in patients with cirrhosis and can
greater than 78 mmol per day and not losing weight
induce azotemia.51 These drugs can convert patients from
should be counseled further about diet sodium restric- diuretic-sensitive to refractory and should be avoided in
tion. These patients should not be labeled as diuretic- this setting. Failure of diuretic therapy may be manifested
resistant and should not proceed to second-line therapy
by (1) minimal to no weight loss together with inadequate
until it is documented that they are compliant with the
( 78 mmol per day) urinary sodium excretion despite
diet. Patients who are excreting more than 78 mmol per diuretics, or (2) development of clinically significant com-
day of sodium in the urine with unchanged or increasing plications of diuretics, e.g., encephalopathy, serum creat-
weight are consuming more sodium in the diet than 88 inine greater than 2.0 mg/dL, serum sodium less than 120
mmol per day. mmol/L, or serum potassium greater than 6.0 mmol/L.
Patients who do not lose weight and excrete less than Randomized trials have shown that less than 10% of cir-
78 mmol per day should receive an attempt at a higher rhotic ascites patients are refractory to standard medical
dose of diuretics. Frequency of follow-up is determined therapy.39,44 Options for patients refractory to routine
by response to treatment and stability of the patient. medical therapy include (1) serial therapeutic paracente-
Some patients warrant evaluation every 2 to 4 weeks until ses, (b) liver transplantation, (c) transjugular intrahepatic
it is clear that they are responding to treatment and not portasystemic stent-shunt (TIPS), and (d) peritone-
developing problems. Thereafter, evaluation every few ovenous shunt.12,13,44,52,53
HEPATOLOGY, Vol. 39, No. 3, 2004 RUNYON 7
Serial therapeutic paracenteses are effective in control- crease in serum albumin led to a 39% increase in degra-
ling ascites. This has been known since the time of the dation.57 Increasing albumin concentration in cell culture
ancient Greeks. However, only relatively recently have media has been shown to decrease albumin synthesis.59
controlled trials demonstrating the safety of this approach The University Hospital Consortium is a not-for-
been published.49 Even in patients with no urine sodium profit alliance of academic medical centers in the United
excretion, paracenteses performed approximately every 2 States; its 1995 update of the National Institutes of
weeks control ascites.12,13 Frequency of paracentesis pro- Health consensus conference on albumin recommends no
vides insight into the patient s degree of compliance with intravenous fluid infusion after paracenteses of less than 4
the diet. The sodium concentration of ascitic fluid is ap- L and recommends crystalloid as a first-line agent and
proximately equivalent to that of plasma in these patients: albumin as a second-line agent for larger paracenteses.60
130 mmol/L. A 6-L paracentesis removes 780 mmol of In view of the extremely high cost of albumin, future
sodium (130 mmol/L 6L 780 mmol). A 10-L para- studies also should include cost analyses. Nevertheless,
centesis removes 1300 mmol. Patients consuming 88 albumin is being used after therapeutic paracentesis.
mmol of sodium per day, excreting approximately 10 While more studies are awaited, it is reasonable although
mmol per day in nonurinary losses, and excreting no uri- not mandatory to give it for paracenteses greater than 5
nary sodium retain a net of 78 mmol per day. Therefore, L.54
a 6-L paracentesis removes 10 days (780 mmol /78 mmol Studies have infused between 5 and 10 g of albumin
per day) of retained sodium and a 10-L paracentesis re- per liter of fluid removed.52,54,55 No study has compared
moves approximately 17 days of retained sodium (1300 doses.
mmol /78 mmol per day 16.7 days) in patients with no Non-albumin plasma expanders such as dextran 70,
urinary sodium excretion. Patients with some urinary so- hydroxyethylstarch, and even saline have been advocated,
dium excretion should require paracenteses even less fre- also without demonstration of a survival advantage.55,61
quently. Patients requiring paracenteses of approximately Hydroxyethylstarch can fill Kupffer cells and cause portal
10 L more frequently than every 2 weeks are clearly not hypertension even in patients without underlying liver
complying with the diet. disease.62 Part of the controversy regarding post-paracen-
In recent years, new paracentesis equipment (e.g., mul- tesis plasma expanders relates to study design. More stud-
tihole, large-bore needle) has become available that may ies are needed, in particular studies that target survival as
improve the ease and speed of paracentesis. the specific study endpoint in patients with truly diuretic-
One controversial issue regarding therapeutic paracen- resistant ascites. Chronic therapeutic paracenteses should
tesis is that of colloid replacement. In one study, 105 be reserved for the 10% of patients who truly fail diuretic
patients with tense ascites were randomized to receive treatment. Some patients may benefit from albumin in-
albumin (10 g/L of fluid removed) versus no albumin, fusion after large-volume paracentesis. What are needed
after therapeutic paracentesis.54 Refractoriness to diuretic are risk factors that permit pre-paracentesis identification
treatment was not a prerequisite for entry into this study; of the subset of patients who are at higher risk of post-
in fact, 31.4% of patients had not received diuretics.54 paracentesis circulatory dysfunction.
The group that received no albumin developed statisti- Liver transplantation should be considered in the treat-
cally significantly more (although asymptomatic) changes ment options of patients with ascites. Once patients be-
in electrolytes, plasma renin, and serum creatinine than come refractory to routine medical therapy, 50% die
the albumin group, but no more clinical morbidity or within 6 months and 75% die within 1 year.63 Referral
mortality.54 Although another study has documented that should not be delayed in patients with refractory ascites.
the subset of patients who develop a rise in plasma renin TIPS is a side-to-side portacaval shunt that is placed by
after total paracentesis have decreased life expectancy, an interventional radiologist usually under local anesthe-
there has been no study large enough to demonstrate de- sia52,53,64  66; in some European centers, TIPS is placed by
creased survival in patients given no plasma expander hepatologists. General anesthesia is used in some centers.
compared to patients given albumin after paracentesis.55 One randomized trial demonstrated higher mortality in
Furthermore, the activation in vasoconstrictor systems the TIPS group compared to the medically treated group,
that can follow large-volume paracentesis may not be re- but this study was very small and took place very early in
lated to a decreased intravascular volume.56 Also, albumin our experience with this relatively new technique.64 Four
infusions markedly increase albumin degradation, and al- large-scale, multicenter randomized controlled trials
bumin is very expensive.47,57,58 In a study performed al- comparing TIPS to sequential large-volume paracentesis
most 40 years ago, 58% of infused albumin was have been undertaken52,53,65,66 (Table 3). Three of these
accounted for by increased degradation, and a 15% in- are completed and published.52,53,65 The remaining study
8 RUNYON HEPATOLOGY, March 2004
Table 3. Large-Scale Randomized Controlled Trials of TIPS Versus Serial Large-Volume Paracenteses
Method of
Reference Randomization Control of
No. Status Inclusion Criteria and Analysis N Ascites Survival Encephalopathy
52 Completed Tense ascites & failure No details 60 61% vs. 18% 69% vs. 52% 1 year (P .11 58% vs. 48%*
of 4 weeks of (P .006) by univariate analysis)/(P
therapy .02 by multivariate analysis)
53 Completed Ascites refractory to Sealed opaque 70 51% vs. 17% 41% vs. 35% 1 year* All 77% vs. 66%
medical therapy envelope (P .003) (P .29)
Intention to treat Severe 60% vs. 34%
(P .03)
65 Completed Refractory ascites No details 109 58% vs. 16% 40% vs. 37%* Moderate-Severe 38% vs.
Intention to treat (P .001) 12% (P .058)
66 Ongoing Refractory or recidivant No details 57 74% vs. 35% 71% vs. 35% (P .017) 55% vs. 46% (P .29)
ascites (P .008)
*P value not significant.
is ongoing and has been published only in abstract form.66 More randomized trials are planned. Their results are
All of these report better control of ascites in the TIPS needed before the position of TIPS in the algorithm of
group. One reports no survival advantage by univariate
treatment of patients with ascites can be finalized.
analysis but a statistically significant survival advantage
Peritoneovenous shunt, e.g., LeVeen or Denver, was
for the TIPS group by multivariate analysis.52 Another
popularized in the 1970s as a physiologic treatment of
reports prevention of hepatorenal syndrome but with
ascites. Shunt placement has been shown in controlled
higher costs in the TIPS group: there were similar rates of
trials to decrease the duration of hospitalization, decrease
encephalopathy overall but more severe hepatic encepha-
the number of hospitalizations, and decrease the dose of
lopathy in the TIPS group.53 Another shows no survival
diuretics.44,71 However, poor long-term patency, exces-
advantage, with a trend (P .58) toward more moderate
sive complications, and no survival advantage compared
or severe encephalopathy in the TIPS group and no effect
to medical therapy in controlled trials have led to near
on quality of life.65 This study is the first to provide a
abandonment of this procedure.44,71 Shunt-related fi-
specific cutoff of cardiac ejection fraction ( 50%) for
brous adhesions and even  cocoon formation can make
eligibility for enrollment.65 The ejection fraction of the
subsequent liver transplantation difficult. Peritoneo-
patient with cirrhosis is usually greater than 60%.67 An
venous shunting should probably now be reserved for
ejection fraction of greater than 60% may be more appro-
diuretic-resistant patients who are not candidates for
priate as an inclusion criterion for entry into a TIPS study,
transplant or TIPS and who are not candidates for serial
since patients with an ejection fraction between 50% and
therapeutic paracenteses because of multiple abdomi-
60% may have a higher risk of post-TIPS heart failure.68
nal surgical scars or distance from a physician willing to
The abstract of the ongoing study reports a survival ad-
perform and capable of performing paracenteses. Recent
vantage in the TIPS group with similar hospitalization
experience in shunt insertion by the surgeon may also be a
and encephalopathy rates.66 Meanwhile, a polytetraflu-
factor in optimizing results in the rare patient who is
oroethylene-covered stent has been developed that has
selected to undergo this procedure.
more than twice the patency of the uncoated stent at 1
Interventional radiologists have reported the possibil-
year in a randomized trial.69 Also, there is a new scoring
ity of performing a peritoneovenous shunt without the
system, Model for End-Stage Liver Disease, to predict
participation of a surgeon.72 Radiologists are also placing
3-month mortality after TIPS.70All of these trials were
plastic subcutaneous access ports for paracentesis.73 Radi-
initiated before this scoring system was popularized. Fur-
ologists and surgeons have collaborated to develop a de-
thermore, some investigators and some trials have with-
vice that drains ascitic fluid into the urinary bladder.74
held diuretics after TIPS. This further limits its efficacy.
None of these new techniques have been studied in ran-
TIPS usually converts diuretic-resistant patients into di-
domized trials. We await the results of such studies before
uretic-sensitive patients. Giving diuretics after TIPS and
placing these innovations into our algorithm.
titrating the doses to achieve natriuresis is appropriate.
As the experience with TIPS continues, and the level of
sophistication of patient screening improves (e.g., ejection Recommendations
fraction), and the technology of the stent itself improves, 12. Serial therapeutic paracenteses may be performed
the results of future trials may be better than past trials. in patients with refractory ascites. (Grade III)
HEPATOLOGY, Vol. 39, No. 3, 2004 RUNYON 9
13. Post-paracentesis albumin infusion may not be nec- Usually, short case series with or without historical con-
essary for a single paracentesis of less than 4 to 5 L. For trols are reported, followed by a flurry of enthusiasm.
large-volume paracenteses, an albumin infusion of 8 to 10 g Then the option disappears from the literature without
per liter of fluid removed can be considered. (Grade II-2) publication of a randomized trial. Whether a randomized
14. Referral for liver transplantation should be expe- trial with negative results remains unpublished is un-
dited in patients with refractory ascites. (Grade II-3) known. Recently, treatments have been much more suc-
15. TIPS should be considered in appropriately se- cessful for type I hepatorenal syndrome, albeit without
lected patients who meet criteria similar to those of pub- randomized data. Dopamine is the traditional drug that
lished randomized trials. (Grade I) has been used clinically. The drug combination,along
16. Peritoneovenous shunt should be considered for with albumin infusion, that has been reported from Eu-
patients with refractory ascites who are not candidates for rope but is also available in the United States is octreotide
paracenteses, transplant, or TIPS. (Grade I) and midodrine.77 In one study, 5 patients received 10 to
20 grams of intravenous albumin per day for 20 days, plus
octreotide with a target dose of 200 grams subcutane-
Hepatorenal Syndrome
ously 3 times per day, and midodrine titrated up to a
Diagnosis
maximum of 12.5 mg orally 3 times per day to achieve an
Major criteria include (1) advanced chronic or acute
increase in mean blood pressure of 15 mm Hg.77 Results
liver failure with portal hypertension; (2) serum creatinine
were superior to those of 8 patients treated with dopamine
greater than 1.5 mg/dL or 24-hour creatinine clearance
and albumin.77 This regimen can be administered outside
less than 40 mL per minute; (3) absence of shock, ongoing
of an intensive care unit and can even be given at home.77
bacterial infection, recent treatment with nephrotoxic
Many liver units in the United States are reporting anec-
drugs, or massive gastrointestinal or renal fluid losses; (4)
dotal success with this strategy. Another pilot study, this
no sustained improvement in renal function following
one using norepinephrine plus albumin, reports 83% (10
diuretic withdrawal and expansion of plasma volume with
of 12 patients) success in reversing type I hepatorenal
1.5 L of isotonic saline; and (5) less than 500 mg/dL
syndrome; this treatment requires that the patient be in an
proteinuria and no ultrasonographic evidence of obstruc-
intensive care unit.78 An uncontrolled trial using terli-
tive uropathy or parenchymal kidney disease.50 Two types
pressin (not available in the United States) also reports
of hepatorenal syndrome have been described. Type I is
success with type I hepatorenal syndrome.79 TIPS has also
characterized by rapidly progressive reduction in renal
been reported to be effective in type I hepatorenal syn-
function as defined by a doubling of the initial serum
drome in an uncontrolled study of 7 patients.80 Enthusi-
creatinine to a level greater that 2.5 mg/dL or a 50%
asm is high for these new treatments.81 Whether they will
reduction of the initial 24-hour creatinine clearance to a
be effective in patients with type II hepatorenal syndrome
level lower that 20 mL per minute in less that 2 weeks;
type II does not have a rapidly progressive course.50 remains to be seen. What are needed are well-designed,
randomized controlled trials.
It has been known for 30 years that liver transplanta-
Treatment
tion is an effective treatment for hepatorenal syndrome;
Hemodialysis is frequently used to control azotemia
this will probably never be studied in a randomized trial.82
and maintain electrolyte balance before liver transplanta-
tion. Many patients require it for a variable interval after
Recommendations
transplant. Hypotension during dialysis is a common
17. Albumin infusion plus administration of vasoac-
problem. However, without transplantation survival is
tive drugs such as octreotide and midodrine should be
dismal; one older series reported no survivors out of 25
considered in the treatment of type I hepatorenal syn-
patients.75 Continuous venovenous hemofiltration causes
drome. (Grade II-1)
less hypotension but requires the continuous involvement
18. Patients with cirrhosis, ascites, and type I hepato-
of a dialysis nurse.76 In a study that screened 3,860 pa-
renal syndrome should have an expedited referral for liver
tients with cirrhosis and ascites and included an arm for
transplantation. (Grade II-3)
patients with hepatorenal syndrome, peritoneovenous
shunting was not shown to improve survival in hepatore-
Spontaneous Bacterial Peritonitis
nal syndrome; however, a type II error could not be ex-
cluded.44 Furthermore, this study was performed before Diagnosis
the types of hepatorenal syndrome were delineated. Ascitic fluid infection is sufficiently common at the
Many pharmaceutical treatments, including some that time of admission of a patient with cirrhosis and ascites to
are not available in the United States, have been tried. justify a diagnostic paracentesis.14 The diagnosis of spon-
10 RUNYON HEPATOLOGY, March 2004
taneous bacterial peritonitis (SBP) is made when there is a bacteria may result in the death of the patient from over-
positive ascitic fluid bacterial culture and an elevated as- whelming infection. In some patients, infection is de-
citic fluid absolute PMN count (i.e., 250 cells/mm3 tected at the bacterascites stage before there is a neutrophil
[0.25 x 109/L]) without an evident intra-abdominal, sur- response, i.e., less than 250 cells/mm3 (0.25 109/L);
gically treatable source of infection.83 An abdominal para- this has been labeled monomicrobial nonneutrocytic
centesis must be performed and ascitic fluid must be bacterascites.87 Most patients 62% in one study re-
analyzed before a confident diagnosis of ascitic fluid in- solve the colonization without antibiotics and without a
fection can be made. A  clinical diagnosis of infected neutrophil response.87 Patients with bacterascites who do
ascitic fluid without a paracentesis is not adequate. Dip- not resolve the colonization and who progress to SBP have
stick testing of ascitic fluid and automated cell counts may signs or symptoms of infection at the time of the paracen-
improve early detection of this infection.18  20
tesis that documents bacterascites.86,87 Therefore, patients
with cirrhosis and ascites who have convincing signs or
symptoms of infection (fever, abdominal pain, or unex-
Empiric Treatment
plained encephalopathy) should receive empiric treat-
Patients with ascitic fluid PMN counts greater than or
ment until the culture results are known regardless of the
equal to 250 cells/mm3 (0.25 x 109/L) in a clinical setting,
PMN count in ascitic fluid.
compatible with ascitic fluid infection, should receive em-
The patient with alcoholic hepatitis represents a special
piric antibiotic therapy.13,83 An elevated ascitic fluid
case. These patients may have fever, leukocytosis, and
PMN count probably represents evidence of failure of the
abdominal pain that can masquerade as SBP. In addition,
first line of defense, the peritoneal macrophages, to kill
they can develop SBP. These patients do not develop
invading bacteria. Most of the bacterial cultures of these
false-positive elevated ascitic fluid PMN counts because
fluid samples will grow bacteria if (1) the fluid is cultured
of peripheral leukocytosis88; an elevated PMN count
in blood culture bottles, (2) there has been no prior anti-
must be presumed to represent SBP. Empiric antibiotic
biotic treatment, and (3) there is no other explanation for
treatment (for presumed ascitic fluid infection) of patients
an elevated PMN count, e.g., hemorrhagic ascites, perito-
with alcoholic hepatitis who have fever and/or peripheral
neal carcinomatosis, pancreatitis, or peritoneal tuberculo-
leukocytosis can be discontinued after 48 hours if ascitic
sis.13,29,84 The patients who meet the above criteria but
fluid, blood, and urine cultures demonstrate no bacterial
have negative cultures have been labeled with a diagnosis
growth.
of culture-negative neutrocytic ascites.84 The initial
Relatively broad-spectrum therapy is warranted in pa-
threshold PMN count for making this diagnosis was 500
cells/mm3 (0.25 109/L).84 However, subsequent stud- tients with suspected ascitic fluid infection until the re-
sults of susceptibility testing are available. Cefotaxime, a
ies have revised this threshold to 250 cells/mm3 (0.25
109/L).85 Patients with culture-negative neutrocytic as- third-generation cephalosporin, has been shown to be
cites have similar signs, symptoms, and mortality as pa- superior to ampicillin plus tobramycin in a controlled
trial.89 Cefotaxime or a similar third-generation cephalo-
tients with SBP and warrant empiric antibiotic
sporin appears to be the treatment of choice for suspected
treatment.84 A prospective study in which 2 paracenteses
SBP; it covers 95% of the flora including the 3 most
were performed in rapid sequence (approximately 8 hours
apart) before initiation of antibiotic therapy has demon- common isolates: Escherichia coli, Klebsiella pneumoniae,
strated that only 8% of patients with culture-positive as- and pneumococci89 (Table 4). Dosing of cefotaxime 2 g
citic fluid with an elevated PMN count become culture- intravenously every 8 hours has been shown to result in
negative spontaneously.86 The majority of patients with excellent ascitic fluid levels (20-fold killing power after 1
culture-positive neutrocytic ascites demonstrate rising dose).90 After sensitivities are known, the spectrum of
bacterial counts and rising PMN counts when serial sam- coverage can usually be narrowed. A randomized con-
ples are obtained in rapid sequence before initiation of trolled trial involving 100 patients has demonstrated that
antibiotic therapy.86 The majority of patients with cul- 5 days of treatment is as efficacious as 10 days in the
ture-negative neutrocytic ascites continue with this pat- treatment of carefully characterized patients with SBP.91
tern of ascitic fluid analysis when serial samples are Oral Treatment. Oral ofloxacin has been reported in
obtained in rapid sequence before initiation of antibiotic a randomized controlled trial to be as effective as paren-
therapy; 34.5% become culture-positive.86 teral cefotaxime in the treatment of SBP in patients with-
The ascitic fluid PMN count is more rapidly available out vomiting, shock, grade II (or higher) hepatic
than the culture and appears to be accurate in determin- encephalopathy, or serum creatinine greater than 3 mg/
ing who really needs empiric antibiotic treatment.13,83 dL.92 Only 61% of patients with SBP met study inclusion
Delaying treatment until the ascitic fluid culture grows criteria. All treatment was given in hospitalized patients.92
HEPATOLOGY, Vol. 39, No. 3, 2004 RUNYON 11
Table 4. Treatment of Spontaneous Bacterial Peritonitis (SBP)
Reference Method of Randomization
No. Study Design and Analysis N Results P Mortality P
89 Cefotaxime vs. Random number table 73 Cure of infection 85% vs. .02 Infection-related NS
ampicillin/tobramycin for 56% mortality 19% vs.
severe infections Superinfection 0% vs. 16% 31%Hospitalization
mortality 27% vs. NS
39%
91 Cefotaxime 5 days vs. 10 days Sealed opaque envelope 100 Cure 93% vs. 91% NS Infection-related NS
for SBP Intention to treat Recurrence 12% vs. 13% NS mortality 0% vs. 4%
Hospitalization NS
mortality 33% vs.
43%
92 Oral ofloxacin vs. cefotaxime for Sealed envelope 123 Resolution 84% vs. 85% NS Hospitalization NS
SBP mortality 19% vs.
19%
93 Cefotaxime with or without Sealed envelope 126 Resolution 98% vs. 94% NS Hospitalization .01
albumin for SBP Intention to treat Renal failure 10% vs. 33% .002 mortality 10% vs.
29%
Abbreviation: NS, not significant.
Intravenous Albumin Infusion in Addition to Ce- and ascites and an ascitic fluid PMN count greater than or
fotaxime. One controlled trial randomized patients with equal to 250 cells/mm3. These criteria have been shown to
SBP to receive cefotaxime alone versus cefotaxime plus have 100% sensitivity but only 45% specificity in detect-
1.5 g albumin per kg body weight within 6 hours of en- ing perforation in a prospective study.21 An ascitic fluid
rollment and 1.0 g/kg on day 3.93 A decrease in mortality carcinoembryonic antigen greater than 5 ng/mL or ascitic
from 29% to 10% was reported.93 This is the lowest hos- fluid alkaline phosphatase greater than 240 units/L has
pitalization mortality ever reported in a randomized trial also been shown to be accurate in detecting gut perfora-
of SBP.94 Improving control of a complication of ad- tion into ascitic fluid with a sensitivity of 92% and spec-
vanced cirrhosis is commonly reported; however, dramat- ificity of 88%; these criteria would not be predicted to be
ically improving survival is seldom shown. This study useful in nonperforation secondary peritonitis.22 Patients
warrants confirmation. While confirmation is awaited, it who fulfill either set of criteria for gut perforation should
is reasonable to give albumin in this dose in this setting. undergo emergent plain and upright films, water-soluble
contrast studies of the gut, and computed tomographic
Distinction From Secondary Bacterial Peritonitis
scanning.21,22
Secondary bacterial peritonitis, i.e., ascitic fluid infec- The total protein, LDH, and glucose criteria are only
tion caused by a surgically treatable intra-abdominal
50% sensitive in detecting nonperforation secondary
source, can masquerade as SBP. Secondary peritonitis can
peritonitis; the follow-up PMN count after 48 hours of
be divided into 2 subsets: those with free perforation of a
treatment assists in detecting these patients.21 The 48-
viscus (e.g.,duodenal ulcer) and those with loculated ab- hour PMN count is essentially always below the pretreat-
scesses in the absence of perforation (e.g., perinephric ab- ment value in SBP when an appropriate antibiotic is used;
scess. Signs and symptoms do not help separate patients
in contrast, the PMN count rises despite treatment in
who need surgical intervention (both subsets of secondary
nonperforation secondary peritonitis.21
peritonitis) from those who have SBP and need only an- Patients documented to have free perforation or non-
tibiotic treatment.21 In contrast, the initial ascitic fluid
perforation secondary peritonitis should receive anaerobic
analysis and the response to treatment can assist with this
coverage in addition to a third-generation cephalosporin
important distinction.21 The characteristic analysis in the
and should undergo laparotomy.21 The mortality of sec-
setting of free perforation is PMN count greater than or
ondary peritonitis treated with antibiotics and surgery is
equal to 250 cells/mm3 (usually many thousands), multi- similar to that of SBP treated with antibiotics.21
ple organisms on Gram s stain and culture, and at least
two of the following criteria: total protein greater than Follow-up Paracentesis
1g/dL, lactate dehydrogenase greater than the upper limit A follow-up ascitic fluid analysis is not needed in all
of normal for serum, and glucose less than 50 mg/dL.21 It patients with infected ascites95 The majority of patients
is useful to order an ascitic fluid Gram s stain, culture, have SBP in the typical setting (i.e., advanced cirrhosis)
total protein, LDH, and glucose in patients with cirrhosis with typical symptoms, typical ascitic fluid analysis (total
12 RUNYON HEPATOLOGY, March 2004
Table 5. Prevention of Spontaneous Bacterial Peritonitis (SBP)
Reference Method of Randomization
No. Study Design and Analysis N Results P Mortality P
97 Norfloxacin vs. no drug in No details 63 SBP 0% vs. 23% .05 Infection-related NS
inpatients with AFTP 1.5 mortality (0% vs.
g/dL 13%)
Hospitalization NS
mortality (6% vs.
16%)
98 Norfloxacin vs. placebo in No details 80 SBP recurrence 12% vs. .014 18% vs. 25% NS
patients with prior SBP 35%
99 Norfloxacin vs. no drug in No details 119 Infection 10% vs. 37% .001 7% vs. 12% NS
cirrhotics with gut hemorrhage
101 Trimethoprim/sulfamethoxazole No details 67 SBP or bacteremia (3% .025 7% vs. 20% .15
vs. no drug in cirrhotics with vs. 27%)
ascites
102 Meta-analysis of antibiotic Meta-analysis 534 32% reduction in infection .001 9% increase in survival .004
prevention of infection in
cirrhotics with gut hemorrhage
Abbreviations: AFTP, ascitic fluid total protein; NS, not significant.
protein 1 g/dL, LDH less that the upper limit of normal protein, LDH, glucose, and Gram s stain to assist with the
for serum, and glucose greater than or equal to 50 mg/ distinction of SBP from secondary peritonitis. (Grade II-2).
dL), a single organism, and a dramatic clinical re- 23. Oral ofloxacin (400 mg twice per day.) can be
sponse.13,95 Repeat paracentesis can be performed to
considered a substitute for intravenous cefotaxime in in-
document sterility of culture and dramatic decrease in
patients without vomiting, shock, grade II (or higher)
PMN count in patients with SBP; however, it is not nec-
hepatic encephalopathy, or serum creatinine greater than
essary. In contrast, if the setting, symptoms, analysis, or-
3 mg/dL. (Grade I)
ganism(s), or response are atypical, repeat paracentesis can
24. Patients with ascitic fluid PMN counts greater
be helpful in raising the suspicion of secondary peritonitis
than or equal to 250 cells/mm3 (0.25 109/L) and clin-
and prompting further evaluation and surgical interven-
ical suspicion of SBP should receive 1.5 g albumin per kg
tion when appropriate.21
body weight within 6 hours of detection and 1.0 g/kg on
day 3. (Grade I)
Recommendations
19. Patients with ascites admitted to the hospital
should undergo abdominal paracentesis. Paracentesis Prevention of SBP
should be repeated in patients (whether in the hospital or
The identification of risk factors for development of
not) who develop signs or symptoms or laboratory abnor-
SBP (including ascitic fluid protein concentration less
malities suggestive of infection (e.g., abdominal pain or
than 1.0 g/dL, variceal hemorrhage, and prior episode of
tenderness, fever, encephalopathy, renal failure, acidosis,
SBP) has led to randomized controlled trials of prophy-
or peripheral leukocytosis). (Grade III)
lactic antibiotics96  101(Table 5). Norfloxacin 400 mg per
20. Patients with ascitic fluid PMN counts greater
day orally has been reported to successfully prevent SBP
than or equal to 250 cells/mm3 (0.25 109/L) should
in (1) patients with low-protein ascites and (2) patients
receive empiric antibiotic therapy, e.g., intravenous cefo-
with prior SBP.97 98 Norfloxacin 400 mg orally twice per
taxime 2 g every 8 hours. (Grade I)
day for 7 days helps prevent infection in patients with
21. Patients with ascitic fluid PMN counts less than
variceal hemorrhage.99 An antibiotic can be given intra-
250 cells/mm3 (0.25 109/L) and signs or symptoms of
venously while the patient is actively bleeding; ofloxacin
infection (temperature 100°F or abdominal pain or ten-
(400 mg per day) has been validated for this purpose.100
derness) should also receive empiric antibiotic therapy,
Administering 5 doses of double-strength trimethoprim/
e.g., intravenous cefotaxime 2 g every 8 hours, while
sulfamethoxazole per week has also been reported to be
awaiting results of cultures. (Grade II-3)
effective in preventing SBP in patients with cirrhosis and
22. When the ascitic fluid of a patient with cirrhosis is
found to have a PMN count greater than or equal to 250 ascites.101 However, intermittent dosing may select resis-
cells/mm3 (0.25 109/L), it should also be tested for total tant flora more rapidly. Daily dosing of this drug combi-
HEPATOLOGY, Vol. 39, No. 3, 2004 RUNYON 13
nation may be better than intermittent dosing. Selective Recommendations
intestinal decontamination with norfloxacin or tri- 25. Short-term (7 days) inpatient twice-daily nor-
methoprim/sulfamethoxazole has not been shown to pro- floxacin (or trimethoprim/ sulfamethoxazole) should be
long survival in humans in individual trials. However, given to prevent bacterial infections in patients with cir-
these studies were not designed to detect a survival advan- rhosis and gastrointestinal hemorrhage; a quinolone anti-
biotic can be given intravenously while the patient is
tage. A meta-analysis of 5 trials in patients with cirrhosis
and gastrointestinal bleeding has shown a survival advan- actively bleeding. (Grade I)
26. Patients who have survived an episode of SBP
tage of 9.1% in the treated group.102
should receive long-term prophylaxis with daily norfloxa-
Selective intestinal decontamination does select resis-
cin (or trimethoprim/sulfamethoxazole) because this is
tant gut flora, which can subsequently cause spontaneous
the most data-supported indication for long-term outpa-
infection; fortunately, infection-causing bacteria that are
tient prophylaxis. (Grade I)
resistant to quinolones are usually sensitive to cefo-
27. In patients with cirrhosis and ascites but no gas-
taxime.103 A report from a center in which selective intes-
trointestinal bleeding, either short-term (inpatient-only)
tinal decontamination has been routine in high-risk
or long-term outpatient use of daily norfloxacin (or tri-
patients for many years documents a recent change in the
methoprim/sulfamethoxazole) can be justified when the
flora of bacterial infections with a predominance of gram-
ascitic fluid total protein is less than or equal to 1g/dL) or
positive organisms, compared to a predominance of
serum bilirubin greater than 2.5 mg/dL. (Grade I)
gram-negative organisms in the past.104 This is cause for
concern and emphasizes the importance of limiting selec-
Acknowledgment: This guideline was commissioned
tive intestinal decontamination to patients at high risk.
and approved by the American Association for the Study
Selective intestinal decontamination with norfloxacin or
of Liver Diseases (AASLD) and represents the position of
trimethoprim/sulfamethoxazole in patients with prior
the Association. It was produced in collaboration with the
SBP or low-protein ascitic fluid does appear to be cost-
AASLD Practice Guidelines Committee. Members of the
effective.105,106
AASLD Practice Guidelines Committee included: K. Ra-
One trial in which patients with low-protein ( 1g/dL)
jender Reddy, M.D., Chair; Henry C. Bodenheimer, Jr.,
ascitic fluid or bilirubin greater than 2.5 mg/dL were ran- M.D.; Bruce R. Bacon, M.D.; William D. Carey, M.D.;
domized either to continuous norfloxacin or to inpatient- Robert L. Carithers, M.D.; James E. Everhart, M.D.;
Thomas W. Faust, M.D.; D. Roy Ferguson, M.D.; Nor-
only norfloxacin demonstrated that continuous
man D. Grace, M.D.; Elizabeth Hespenheide, RN, BSN;
norfloxacin reduced SBP compared to inpatient-only pro-
Maureen Jonas, M.D.; Michael R. Lucey, M.D.; Timo-
phylaxis.107 However, patients receiving continuous nor-
thy M. McCashland, M.D.; Brian J. McMahon, M.D.; F.
floxacin had a higher risk of resistant flora when they did
Fred Poordad, M.D.; Robert Reindollar, M.D.; Leonard
develop infection.107 Based on the available literature, it is
B. Seeff, M.D.; Margaret C. Shuhart, M.D.; Brent A.
reasonable to give norfloxacin (or trimethoprim/sulfame-
Tetri, M.D.; and Zobair Younossi, M.D.
thoxazole) (1) to inpatients who meet these criteria with
discontinuation of the drug at the time of discharge or (2)
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