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Pediatr Radiol. 2005 Jul;35(7):713-6. Epub 2005 Apr 9.

Intraurethral knot in a very-low-birth-weight infant: radiological recognition, surgical management and prevention.

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Division of Neonatology, The Hospital for Sick Children, 555 University Ave, Toronto M5G 1X8, Canada.


We report a case where a knot developed in a urinary catheter and became lodged within the urethra of a very-low-birth-weight (VLBW) preterm infant. The catheter was removed with the assistance of a urologist. We recommend using caution when placing urinary catheters in VLBW infants and question the appropriateness of feeding tubes as catheters. Recognition on radiographs of malpositioned bladder catheters is vital to the care of these patients. All staff involved in the insertion, maintenance or removal of these catheters should be suitably trained to minimize the risk of knots and related complications.

[Indexed for MEDLINE]

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