Treatment of Peritonitis in Continuous Ambulatory Peritoneal Dialysis Patients with Co-Trimoxazole

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Abstract
Peritonitis in patients undergoing continuous ambulatory peritoneal dialysis (CAPD) represents the most frequent and difficult problem related to this new form of treatment of ESRD patients. Various treatments have been reported previously. The aim of this study was to investigate the efficiency of a standardized initial treatment in 45 episodes of peritonitis. This was designed to be rapidly efficient, devoided of side-effects and easy enough to be performed by the patients themselves. When peritonitis was clinically suspected, patients received intraperitoneal co-trimoxazole (80 mg trimethoprim, 400 mg sulfamethoxazole), in each of the four daily bags concomitantly with 1,000 U heparin during 2 weeks and half of this dose during 2 other weeks. Our results demonstrate that 88% of the isolates were sensitive to co-trimoxazole and 85% of the patients completed this treatment. All were cured and no relapses were observed. Only 18 days of hospitalisation were required in the 45 episodes of peritonitis. Another anti-infective agent was used in 3 cases of gram-negative peritonitis and 4 other initially resistant to co-trimoxazole. It is concluded that initial treatment of CAPD peritonitis with co-trimoxazole is justified by the high proportion of sensitive germs and that it represents a safe, efficient and inexpensive treatment.

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