Related Experiment Video
Updated: Mar 24, 2026

In Vivo Luminal Measurement of Distension-Evoked Urothelial ATP Release in Rodents
Published on: September 7, 2022
A Knotted Urethral Catheter in the Emergency Department
Victoria Terentiev1, Ora Khentsinsky, Eitan Dickman
1From the Department of Emergency Medicine, Maimonides Medical Center, Brooklyn, NY.
Abstract:
Inadvertent knotting of urethral catheters and enteric feeding tubes is a rare complication in pediatric patients. If a small flexible tube is used and advanced too far, upon withdrawal, the catheter may knot in the bladder. Surgical intervention for retrieval is required in most cases. We present a case of a 26-day-old female neonate who was catheterized with a 5 French enteric feeding tube, which was later removed in the emergency department with gentle traction alone. After removal, a knot was noted at the tip. It is important for emergency physicians to be aware of this complication, because this particular size feeding tube is most susceptible to kinking inside of the urinary tract.
More Related Videos
03:55Urethroplasty with Pedicled Tunica Vaginalis for the Treatment of Long-segment Anterior Urethral Stricture Caused by Lichen Sclerosus of Glans Penis
Published on: October 18, 2024
07:21Clinical Application of 24 G Cannula Needle and 3-0 Polypropylene Suture in Vas Deferens Exploration
Published on: February 10, 2023
Related Concept Videos
Urologic Endoscopic Procedure: Cystoscopic Examination
Cardiac Catheterization I: Pre-Procedure Overview
Urinary Tract Infection III: Diagnostic Studies and Interprofessional Care
Cardiac Catheterization IV: Nursing Management
Ureters
Urethra
The anatomy of the urethra differs between males and females. In females, the urethra is short, measuring about 3–4 cm in length, and opens anterior to the vaginal opening. In males, the urethra is longer and passes through the penis, serving dual purposes: expelling urine and ejaculating semen. The male...