title: Untangling of knotted urethral catheters.
abstract: Intravesical catheter knotting during micturating cystourethrography is a rare but recognized complication of the procedure. We were able to untangle a knot utilizing a fluoroscopically guided vascular guidewire. Following this success, a small study was performed using a model. Various types of guidewires and techniques were tested for different diameters of knots in order to predict the likelihood of success in this type of situation.
authors.affiliation: Department of Radiology, Aberdeen Royal Infirmary, Foresterhill Road, Aberdeen, AB25 2ZN, UK. ajsambrook@doctors.org.uk
authors.forename: Andrew J
authors.initials: AJ
authors.lastname: Sambrook
authors.forename: Alistair
authors.initials: A
authors.lastname: Todd
mesh_terms: D002404:Catheterization / Q000295:instrumentation; D004867:Equipment Design; D004868:Equipment Failure; D005260:Female; D005471:Fluoroscopy; D006801:Humans; D007223:Infant; D013499:Surface Properties; D014521:Urethra / Q000000981:diagnostic imaging; D001743:Urinary Bladder / Q000000981:diagnostic imaging; D014546:Urinary Catheterization / Q000295:instrumentation*