Abstract
Successful peritoneal dialysis (PD) requires a well-functioning PD catheter. Several PD catheter types are available, including the straight tip, coiled tip, swan-neck, pre-sternal, and embedded catheters. The most common non-infectious PD catheter complications are flow problems due to one of four causes: (1) constipation, (2) fibrin plugging or occlusion of the internal catheter lumen by fibrin, (3) catheter migration, and (4) omental wrapping. Evaluation of catheter flow problems begins with eliminating constipation. Diagnostic imaging tests can help diagnose subclinical constipation, catheter migration, and catheter outflow hole obstruction. When faced with a poorly draining or nonfunctional but properly placed PD catheter without constipation, several maneuvers can be performed in the clinic to evaluate and treat catheter obstruction due to fibrin. Catheters suspected of migration or obstruction that continue to have impaired function will require further intervention to restore flow, either via guidewire manipulation under fluoroscopy or, ultimately, laparoscopic exploration, which can quickly identify and allow treatment of obstructed or migrated catheters.
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Saxena, A.B. (2023). Strategies to Avoid and Treat Peritoneal Dialysis Catheter Complications. In: Fadem, S.Z., Moura-Neto, J.A., Golper, T.A. (eds) Complications in Dialysis. Springer, Cham. https://doi.org/10.1007/978-3-031-44557-6_9
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