Transanal or Vaginal Approach to Rectocele Repair: A Prospective, Randomized Pilot Study

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Abstract

PURPOSE:

This study was designed to compare outcomes of transanal and vaginal techniques for rectocele repair.

METHODS:

Thirty females with symptomatic rectocele were enrolled in a prospective, randomized study. Fifteen underwent transanal rectoceleplasty, the other 15 underwent vaginal posterior colporrhaphy. Patients were assessed by clinical interview and examination, defecography, colon transit study, and anorectal manometry before randomization and 12 months postoperatively. Patients with compromised anal sphincter function or other symptomatic prolapse were excluded.

RESULTS:

The study groups were comparable in terms of demographic factors and rectocele-related symptoms and signs. Eleven (73 percent) patients in the vaginal group and 10 (66 percent) in the transanal group digitally assisted rectal emptying preoperatively. The mean depth of the rectocele was 6.0 ± 1.6 cmvs. 5.6 ± 1.8 cm (P= 0.53) in the respective groups. At follow-up, 14 (93 percent) patients in the vaginal group and 11 (73 percent) in the transanal group reported improvement in symptoms (P= 0.08). Need to digitally assist rectal emptying decreased significantly in both groups, to one (7 percent) for the vaginal group and four (27 percent) for the transanal group (P= 0.17 between groups). The respective recurrence rates of rectocele were one (7 percent)vs. six (40 percent) (P= 0.04), and enterocele rates were zerovs. four (P= 0.05). In the vaginal group defecography showed a significant decrease in rectocele depth whereas in the transanal group the difference did not reach statistical significance. None of the patients reportedde novodyspareunia, but 27 percent reported improvement.

CONCLUSION:

Patients' symptoms were significantly alleviated by both operative techniques. The transanal technique was associated with more clinically diagnosed recurrences of rectocele and/or enterocele. Adverse effects on sexual life were avoided by use of both techniques.

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