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Pediatric Radiology
Published in: Pediatric Radiology 4/2007

01-04-2007 | Technical Innovation

Untangling of knotted urethral catheters

Authors: Andrew J. Sambrook, Alistair Todd

Published in: Pediatric Radiology | Issue 4/2007

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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.
Literature
1.
Pearson-Shaver AL, Anderson MH (1990) Urethral catheter knots. Pediatrics 85:852–854PubMed
2.
Sugar EC, Firlit CF (1983) Knot in urethral catheter due to improper catheterization technique. Urology 22:673PubMedCrossRef
3.
Foster H, Ritchey M, Bloom D (1992) Adventitious knots in urethral catheters: report of 5 cases. J Urol 148:1496–1498PubMed
4.
Harris VJ, Ramilo J (1976) Guidewire manipulation of a knot in a catheter used for cystourethrography. J Urol 116:529PubMed
5.
Deeb ZL, Ahn HS, Rosenbaum AE (1980) A new method for uncoiling knots in angiographic tubing. Neuroradiology 20:197–201PubMedCrossRef
6.
Beirman HR (1972) On the intravascular knotting of catheters. Vasc Surg 6:155–158
Metadata
Title
Untangling of knotted urethral catheters
Authors
Andrew J. Sambrook
Alistair Todd
Publication date
01-04-2007
Publisher
Springer-Verlag
Published in
Pediatric Radiology / Issue 4/2007
Print ISSN: 0301-0449
Electronic ISSN: 1432-1998
DOI
https://doi.org/10.1007/s00247-007-0426-0

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