Related Experiment Video
Updated: Jun 27, 2026

A Modified Method for Intrathecal Catheterization in Rats
Published on: February 14, 2025
[Impossible withdrawal of an epidural catheter]
J-M Bréget1, C Fischer, R Ben Meftah
1Service d'anesthésie, centre hospitalier intercommunal de Poissy-St-Germain-en-Laye, 10, rue du Champ-Gaillard, 78300 Poissy-St-Germain-en-Laye, France. jmbreget@msn.com
Abstract:
The knotting of an epidural catheter is a rare complication preventing catheter withdrawal. We report two cases of catheter knotting and subsequent impossible withdrawal with moderate repeated traction. Imaging by CT scan allowed visualisation in the epidural space of a loop and a real knot for the first and the second patient respectively. The common risk factor found was an excess in catheter length inserted. A surgical procedure was necessary for both patients.
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