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  • Title: Preoperative vaginal preparation with povidone-iodine and the risk of postcesarean endometritis.
    Author: Starr RV, Zurawski J, Ismail M.
    Journal: Obstet Gynecol; 2005 May; 105(5 Pt 1):1024-9. PubMed ID: 15863540.
    Abstract:
    OBJECTIVE: Postcesarean endometritis and wound infection remain significant morbidities, despite use of strategies to prevent these complications. We investigated the effect of preoperative vaginal preparation with povidone-iodine as a preventive intervention against postcesarean endometritis and wound infection. METHODS: A randomized controlled study was performed in 308 women undergoing nonemergent cesarean delivery. Subjects received either standard abdominal scrub alone or abdominal scrub with an additional vaginal preparation with povidone-iodine solution. All subjects received prophylactic antibiotic at the time of umbilical cord clamping. Each subject's postoperative course was reviewed for development of febrile morbidity (temperature > 38.0 degrees C), endometritis (temperature > 38.4 degrees C accompanied by fundal tenderness occurring beyond the first postoperative day, in the absence of evidence of other infection), and wound infection. RESULTS: Postcesarean endometritis occurred in 7.0% of subjects who received a preoperative vaginal preparation and 14.5% of controls (P < .05). There was no measurable effect of a vaginal scrub on the development of postoperative fever or wound infection. The adjusted odds ratio for developing endometritis after a vaginal preparation was 0.44 (95% confidence interval [CI] 0.193-0.997). Multivariate analysis showed an increased risk of developing endometritis in association with severe anemia (adjusted OR 4.26, 95% CI 1.568-11.582), use of intrapartum internal monitors (adjusted OR 2.84, 95% CI 1.311-6.136), or history of antenatal genitourinary infection (adjusted OR 2.9, 95% CI 1.265-6.596). CONCLUSION: Preoperative vaginal scrub with povidone-iodine decreases the incidence of postcesarean endometritis. This intervention does not seem to decrease the overall risk of postoperative fever or wound infection.
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