Malfunction of Peritoneal Catheters by Proliferation of Vascularized Fibrous Tissue

An Unexpected Cause of Peritoneal Dialysis Catheter Dysfunction

“…It has only been described in a few previous case reports. 1 – 3 Sheaths can consist of different substances ( e.g. , thrombus, fibrin, collagen, and immunoglobulins).…”

“…In addition, systemic inflammation, causing a procoagulant state, has been proposed as a driving factor of fibrin sheath formation. 3 , 4 Sheath composition analysis could bring more insights on etiology and prevention of recurrence and should be considered routinely.…”

The Underrated Role of Ultrasound in Peritoneal Dialysis

“…In the case of fibrin sheath formation, US reveals a thin echoic layer around the catheter causing an obstruction 8–10 . The encapsulation seems to develop from the parietal or visceral peritoneum, and to expand along the catheter, initially causing only outflow obstruction due to valve function 29 …”