Gastroenterology

Gastroenterology

Volume 90, Issue 6, June 1986, Pages 1827-1833
Gastroenterology

Rapid diuresis in patients with ascites from chronic liver disease: The importance of peripheral edema

https://doi.org/10.1016/0016-5085(86)90249-0Get rights and content

Abstract

Serial measurements of plasma volume and ascites volume were made during treatment with large doses of oral diuretics in 14 patients with stable chronic liver disease. Eight patients had pitting edema in addition to ascites. Reproducibility of ascites and plasma volume measurements was verified in 10 control subjects not receiving diuretics. Six patients without edema undergoing rapid diuresis lost a mean of 1.2 ± 0.2 L of ascites and an equivalent amount of weight (1.3 ± 0.4 kg) per day. All had a rise in blood urea nitrogen or creatinine, or both, and a fall in creatinine clearance. Eight patients with edema undergoing rapid diuresis lost more weight (1.8 ± 0.5 kg/day, p = 0.06) but less ascites (0.7 ± 0.35 L/day, p < 0.05) than those without edema, and none developed renal insufficiency. After edema disappeared, ascites mobilization increased (1.4 ± 0.7 L/day) and renal dysfunction occurred. Plasma volume fell an average of 24% ± 9% in patients without edema but did not change in patients with edema (−0.4% ± 3%). When edema disappeared, plasma volume fell significantly (28% ± 8%, p < 0.001). Electrolyte changes including hyponatremia, hyperkalemia, and hypochloremia were seen only in the group without edema. Patients with ascites and no edema are able to mobilize more than 1 L/day during rapid diuresis, but at the expense of plasma volume contraction and renal insufficiency. Patients with peripheral edema appear to be protected from these effects because of the preferential mobilization of edema and may safely undergo diuresis at a rapid rate (> 2 kg/day) until edema disappears.

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    This study was supported by the Hastings Foundation, Los Angeles, California.

    The abstract and other portions of this study were presented during the AGA/AASLD Digestive Disease Week in New York, New York, May 1985.

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