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OBG · Gynaecological oncology: bladder dysfunction after radical hysterectomy
Sample itemAfter a Wertheim radical hysterectomy, a woman cannot sense bladder filling and has difficulty voiding. What is the cause?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
A. Injury to pelvic autonomic nerves in the cardinal and uterosacral ligaments
Radical hysterectomy removes the parametrium, including the cardinal and uterosacral ligaments that carry the inferior hypogastric plexus. Disruption of this nerve supply causes bladder atony and sensory loss. Nerve-sparing techniques aim to reduce this complication.
Option by option
A. Injury to pelvic autonomic nerves in the cardinal and uterosacral ligaments (correct)
Correct. Division of the autonomic fibres explains the symptoms.
B. Damage to the pudendal nerve
The pudendal nerve supplies the perineum and external urethral sphincter and is not divided.
C. A vesicovaginal fistula
A fistula causes continuous urinary leakage rather than retention.
D. Ligation of a ureter
Ureteric ligation causes hydronephrosis and loin pain rather than voiding difficulty.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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