Water knot: Case report of a rare complication during a urodynamic test. (November 2021)

• Record Type: Journal Article
• Authors: Blas, Leandro; Roberti, Javier; Lopez, Francisco; Ameri, Carlos Alberto
• Is Part Of: Journal of clinical urology. Volume 14:Number 6(2021)
• Page Start: 503
• Page End: 504
• Publication Date: 2021-11
• Subjects: Knotted urethral catheter -- urodynamic test -- complication -- urethral catheter -- knotting; Genitourinary organs -- Surgery -- Periodicals; Genitourinary organs -- Diseases -- Periodicals; Urology -- Periodicals; 616.6005
• DOI: 10.1177/2051415819896508
• Languages: English
• ISSNs: 2051-4158

Abstract

Intravesical catheter knotting is a rarely reported event that could lead to serious complications. We present a case that occurred during urodynamic test with two K30 tubes: a 56-year-old female with a double knot of two K30 (8.4 Fr) tubes. This case was resolved by removing the catheters with sustained traction. Because catheter knotting can be a serious complication, we recommend the use of a double-lumen catheter when possible and assessment of a safe insertion length.