Continuous Cyclic Peritoneal Dialysis: A Preliminary Report

Abstract

Continuous cyclic peritoneal dialysis (CCPD) was designed to reduce the high incidence of peritonitis and eliminate the multiple interruptions created by dialysate exchanges during the day need for CAPD [continuous ambulatory peritoneal dialysis], while maintaining the quality of dialysis. Three nocturnal cycles with 2 l of dialysate lasting 3 h were provided by an automated cycler while the patient sleeps; 2 l were left in the abdomen in the morning. Only 1 daily connection and 1 disconnection were required between the peritoneal catheter and the cycler line. Experience with 14 patients (84 patient mo.) revealed a low incidence of peritonitis (1/42 patient mo.), satisfactory ultrafiltration rates and clearances that compare favorably with those of CAPD (Curea [urea clearance] 67, Ccreatinine [creatinine clearance] 58 and CB12 [vitamin B-12 clearance] 45 L/wk). Blood pressure control was excellent and most patients enjoy liberal diets. Apparently CCPD may reduce the rate of peritonitis, provide excellent clearance and ultrafiltration, allow more free time to the patient and maintain a steady physiological state.