A guide to diagnosing and managing ascites in cirrhosis

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doi:10.12788/jfp.0186

Applied Evidence

A guide to diagnosing and managing ascites in cirrhosis

J Fam Pract. 2021 May;70(4):174-181 | 10.12788/jfp.0186

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References

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How to manage refractory ascites

Fragile patients are those with refractory ascites that is either unresponsive to standard salt restriction and maximum-dose diuretic therapy or that results in a re-accumulation of ascitic fluid soon after paracentesis.⁴⁵ Specialist care is required to improve survival and quality of life for these patients. They should be referred to a hepatologist for consideration of TIPS placement or liver transplantation.¹⁸

Long-term use of albumin was tested in 2 trials for management of decompensated cirrhosis with ascites, yielding conflicting results. The ANSWER trial from Italy showed benefit with this treatment for prolonged survival.⁴⁶ The other trial, from Spain, showed no benefit from albumin and midodrine administration for survival or for improving complications of cirrhosis.⁴⁷ The contradictory results are likely due to heterogeneous populations in the 2 trials and differences in dose and duration of albumin administration. Hence, no clear recommendations can be made based on the available data; further research is needed.

Getting a handle on bacterial peritonitis

Bacterial peritonitis can be divided into spontaneous bacterial peritonitis (SBP) and secondary bacterial peritonitis. SBP is a common complication in patients with cirrhosis and occurs in around 16% of hospitalized patients, based on 1 study.⁴⁸ SBP is defined as a polymorphonuclear leukocyte count ≥ 250 cells/μL in the absence of a surgically treatable source of infection.⁴⁹ It is believed to be caused by bacterial translocation and is treated empirically with a third-generation cephalosporin. This treatment has been shown to be effective in 85% of patients.⁵⁰

Diuresis with mineralocorticoid inhibitors alone may be considered for new onset mild-to-moderate ascites in patients with normal renal function.

Patients with SBP are at a higher risk for renal impairment, likely resulting from increased cytokine production and decreased circulatory volume.⁵¹ Concomitant albumin administration has been shown to significantly improve outcomes and to reduce rates of hepatorenal syndrome in patients with serum creatinine > 1 mg/dL, blood urea nitrogen > 30 mg/dL, or total bilirubin > 4 mg/dL.⁵² The recommended amount of albumin is 1.5 g/kg given within 6 hours of SBP detection and repeat administration of 1 g/kg on Day 3.⁵²

Guidelines from the American Association for the Study of Liver Diseases and from EASL recommend the long-term use of daily norfloxacin or trimethoprim-sulfamethoxazole as secondary prophylaxis in patients who have survived an episode of SBP.^18,30 Long-term antibiotic use is also justified for primary prophylaxis in cirrhosis patients who fulfill certain criteria: ascitic fluid protein < 1.5 g/dL along with impaired renal function (serum creatinine ≥ 1.2 mg/dL, blood urea nitrogen ≥ 25 mg/dL, or serum sodium ≥ 130 mEq/L) or with decompensated cirrhosis (Child-Pugh score ≥ 9 and bilirubin ≥ 3 mg/dL).⁵³ It has been shown to reduce the risk of SBP and hepatorenal syndrome, and improve overall survival.⁵³

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