Peritoneal catheter rupture in an obese patient with the peritoneal wall anchor technique.

Drainage failure during peritoneal dialysis is most commonly due to mechanical complications, such as catheter migration and obstruction. However, intraperitoneal catheter rupture is extremely rare. We report the case of a 48-year-old man with autosomal dominant polycystic kidney disease (ADPKD) who developed intraperitoneal catheter rupture. Despite a thorough analysis of the removed catheter, the definitive cause of rupture could not be determined. Chronic mechanical stress, exacerbated by obesity (body mass index 40.74 kg/m2), was thought to induce catheter rupture. Additionally, the peritoneal wall anchor technique may be associated with mechanical stress. Patients with obesity and ADPKD are at a high risk of catheter rupture. Therefore, intraperitoneal catheter rupture should be considered a differential diagnosis when investigating the cause of poor drainage in patients undergoing peritoneal dialysis.