Risk factors for pelvic organ prolapse repair after hysterectomy

Patrick Dällenbach, Isabelle Kaelin-Gambirasio, Jean-Bernard Dubuisson, Michel Boulvain
Obstetrics and Gynecology 2007, 110 (3): 625-32

OBJECTIVE: To estimate the incidence and identify the risk factors for pelvic organ prolapse repair after hysterectomy.

METHODS: We conducted a case-control study. We identified 6,214 women who underwent hysterectomy in our gynecology department from 1982 to 2002. Cases (n=114) were women who required pelvic organ prolapse surgery after hysterectomy from January 1982 through December 2005. Controls (n=236) were women randomly selected from the same cohort who did not require pelvic organ surgery during the same period. We performed a univariable and a multivariable analysis among 104 cases and 190 controls to identify the variables associated with prolapse repair after hysterectomy.

RESULTS: The incidence of pelvic organ prolapse that required surgical correction after hysterectomy was 1.3 per 1,000 women-years. The risk of prolapse repair was 4.7 times higher in women whose initial hysterectomy was indicated by prolapse and 8.0 times higher if preoperative prolapse grade 2 or more was present. Risk factors included preoperative prolapse grade 2 or more (adjusted odds ratio [OR] 12.6, 95% confidence interval [CI] 4.6-34.7), previous pelvic organ prolapse or urinary incontinence surgery (adjusted OR 7.9, 95% CI 1.3-48.2), history of vaginal delivery (adjusted OR 5.0, 95% CI 1.3-19.7), and sexual activity (adjusted OR 6.2, 95% CI 2.7-14.5). Vaginal hysterectomy was not a risk factor when preoperative prolapse was taken into account (adjusted OR 0.7, 95% CI 0.4-1.1).

CONCLUSION: Preoperative pelvic organ prolapse and other factors related to pelvic floor weakness were significantly associated with subsequent pelvic floor repair after hysterectomy. Vaginal hysterectomy was not a risk factor.


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