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Background: Anecdotally, it is suggested that patients with preeclampsia have a shorter induction to delivery interval than patients without preeclampsia, despite there being no good objective evidence.Methods: A retrospective analysis of 136 primiparous, singleton, cephalic, nonassisted vaginal deliveries between January 1997 and January 2000. Sixty-eight women had induction of labor for preeclampsia and 68 women without preeclampsia had induction of labor for other reasons. The two groups were already case-matched for maternal and gestational age. The following details were recorded from the case notes: maternal age, gestation at delivery, initial Bishop score, total dose of prostaglandin administered, induction to delivery interval, duration of second-stage labor, birthweight, and the percentage of Apgar scores < 7 at 5 min. Statistical analysis was carried out with a Mann-Whitney U-test, with the aid of SPSS version 9, Microsoft WindowsResults: The women with preeclampsia had a statistically significant longer induction to delivery interval than those without preeclampsia. The mean induction to delivery interval of women with and without preeclampsia was 1049.5 min and 762.5 min, respectively (p < 0.001)Conclusion: Women with preeclampsia had a longer induction to delivery interval than patients without preeclampsia. This fact must be considered when deciding upon the mode of delivery in preeclamptic patients. [ABSTRACT FROM AUTHOR]

Background: Rectovaginal endometriosis is a severe form of pelvic endometriosis in which pharmacological treatment is relatively ineffective (Vercellini et al., Fertil Steril. 2005;84:1375-87). Laparoscopic surgical treatment is effective, but has the potential risks of bowel perforation and colostomy formation (Darai et al., Am J Obstet Gynecol. 2005;192:394-400). Transrectal ultrasound scanning can be applied as a preoperative tool to predict the presence of rectovaginal endometriosis and bowel wall involvement (Abrao et al., J Am Assoc Gynecol Laparosc. 2004;11:50-4). Methods: Thirty-two women underwent transrectal ultrasound followed by therapeutic laparoscopy. Likelihood ratios and post-test prevalences were calculated with Fagan's normogram. This was then extrapolated with the aid of a mathematical model to a low-risk population. Results: A positive likelihood ratio was found to be 10.89 (95% confidence ratio (CI): 1.62-73.15) and a negative likelihood ratio was found to be 0.24 (95% CI: 0.1-0.57). The pre-test prevalence of rectovaginal endometriosis was 56%. The positive post-test prevalence probability was 93%, and the negative post-test prevalence probability was 23%. Conclusion: Preoperative transrectal ultrasound scanning for rectovaginal endometriosis is an extremely accurate predictive test, and strongly predicts the need for extensive laparoscopic dissection and potential bowel resection. [ABSTRACT FROM AUTHOR]