Rare case of urethral catheter knot formation in a woman during elective surgery

Excerpt

Catheter-related accidental knot formation is rare but sometimes occurs when using central venous lines, epidural catheters, and nasogastric tubes [1‐3]. Urethral catheters are not an exception. Causes of urethral catheter knot formation include the insertion length, size, and elasticity of the catheter as well as the operator’s skills. Most cases of urethral catheter knot formation occur in children or infants because of the small diameter of the catheter for its length and the soft elasticity [4]. In adult patients, knot formation is theoretically very rare because the diameter of the catheter is large for its length, and the catheter is comparatively rigid. We experienced a case of urinary catheter knot formation during elective surgery. …