Unsuccessful foley catheterization had an unexpected explanation

Area of Science:

• Urology
• Obstetrics & Gynecology

Background:

• Foley catheterization is a standard procedure in obstetric and gynecologic surgeries.
• Inadequate bladder drainage necessitates further investigation to prevent patient morbidity.

Observation:

• During a cesarean section, repeated attempts to insert a Foley catheter failed to drain the bladder.
• Postoperative examination revealed the catheter was lodged within the left ureter.

Findings:

• Cystoscopy confirmed an ectopic ureter inserting into the proximal urethra.
• This ectopic orifice caused the catheter misplacement and failure of bladder decompression.

Implications:

• This case highlights an unusual cause of oliguria in surgical patients requiring Foley catheterization.
• Ectopic ureteral orifices should be considered in the differential diagnosis for unexplained oliguria or anuria and failed bladder catheterization.