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2006: Bolondi Luigi; Piscaglia Fabio; Gatta Angelo; Salerno Francesco; Bernardi Mauro; Ascione Antonio; Ferraù Oscar; Sacerdoti David; Visentin Stefania; Trevisani Franco; Mazzanti Roberto; Donati Gabriele; Arena Umberto; Gentilini Paolo;
Effect of potassium canrenoate, an anti-aldosterone agent, on incidence of ascites and variceal progression in cirrhosis.
Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association 2006;4(11):1395-402.
BACKGROUND & AIMS: Because aldosterone-dependent sodium and water retention contribute to portal hypertension, the safety and effect of an antialdosteronic drug (Kcanrenoate) have been evaluated on the occurrence of de novo appearance of ascites and the development of esophageal varices or the progression of small varices. METHODS: Inclusion criteria were as follows: Child-Pugh A viral pre-ascitic cirrhosis, with either F1 esophageal varices or no varices, but endoscopic and/or ultrasound evidence of portal hypertension. Thirteen Italian Liver Units prospectively enrolled 120 patients randomized to receive double-blind either Kcanrenoate (100 mg/day; 66 patients) or placebo (54 patients). Endoscopy and sonography were performed at entry and at 52 weeks unless the patient developed ascites earlier, whereas laboratory examinations were performed at entry and every 3 months thereafter. An intention-to-treat analysis was performed, with each end point assessed by the Fisher exact test; the cumulative risk for the appearance of any end point was analyzed by the adjusted log-rank test (Tarone-Ware), with censoring for drop-outs. RESULTS: The progression of variceal status or appearance of ascites, analyzed independently, was not significantly more frequent on placebo (24.1% and 9.2%, respectively) than on Kcanrenoate (12.1% and 1.5%, respectively), whereas the cumulative occurrence of end points was decreased on Kcanrenoate (17.6% vs 38.3% with placebo; P < .05, Tarone-Ware test). The incidence of adverse events was negligible and did not differ between groups. CONCLUSIONS: This preliminary study shows that 100 mg/day of Kcanrenoate is well tolerated and does not reduce the individual incidence of ascites and/or the appearance or progression of esophageal varices in preascitc cirrhosis, but may decrease their 1-year cumulative occurrence.

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