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Thirteen of 15 patients with malignant ascites achieved an excellent response to spironolactone, with an increase in urinary sodium excretion rates from less than 35 mEq/d before treatment to between 50 and 245 mEq/d after treatment. Plasma renin activity was raised in all of 5 patients in whom it was measured, whereas aldosterone was raised in only 3; these results are similar to those found in ascites due to cirrhosis.
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Greenway et al. (1982) studied this question.
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