Abstract: Objective To investigate the clinical efficacy of the modified peritoneal dialysis catheter revision technique, and to find a simple, safe and effective operation for patients with malfunctioning catheter. Methods A total of 76 patients with malfunctioning catheter were enrolled, who received the modified peritoneal dialysis catheter revision operation from May 2013 to December 2019 in the First Affiliated Hospital of Zhejiang University. The general condition before and during operation, postoperative complications were observed. Results All patients were managed successfully, with a catheter revision operation time 74.44 ± 25.93 minutes and operative hemorrhage 21.17 ± 2.94 ml. The mean onset time to catheter malfunction was 335.3 ± 556.3 days. Amongst the 76 patients, catheter malposition occurred in 45, omental wrapping in 10, catheter occlusion in 7, catheter malposition with omental wrapping in 10, catheter malposition with occlusion in 3, and 1 case of others. During the follow-up time (38.68 ± 26.76 months), there was only 1patient occurring catheter occlusion after peritonitis and 2 patients with early peritonitis (within 14 days after operation). There was no recurrence of catheter malposition and omental wrapping, and no organ injury, hydrothorax, incision infection and surgery-related tunnel infection. The rate of catheter malfunction was 2.6%, of which were due to dialysate leakage and abdominal wall hernia. Conclusions Our modified peritoneal dialysis catheter revision technique is a simple, safe and effective procedure. This procedure was of less trauma, less complications, minimized or even eliminated the possibility of recurrence of catheter malfunction. It is worthy of clinical application.

Key words: Peritoneal dialysis, Catheter malfunction