Evaluating the safety of labour in women with a placental edge 11 to 20 mm from the internal cervical Os.
作者信息
Al Wadi Khalid, Schneider Carol, Burym Craig, Reid Gregory, Hunt Jennifer, Menticoglou Savas
机构信息
Women's Hospital, Department of Obstetrics, Gynaecology and Reproductive Sciences, University of Manitoba, Winnipeg MB; Women's Specialized Hospital, King Fahad Medical City, Riyadh, Saudi Arabia.
Women's Hospital, Department of Obstetrics, Gynaecology and Reproductive Sciences, University of Manitoba, Winnipeg MB.
出版信息
J Obstet Gynaecol Can. 2014 Aug;36(8):674-677. doi: 10.1016/S1701-2163(15)30508-9.
OBJECTIVE
The purpose of this study was to evaluate pregnancy outcomes in a cohort of women with a placental edge between 11 and 20 mm from the internal cervical os, and to determine the likelihood of a successful vaginal delivery when trial of labour is attempted in these women.
METHODS
We carried out a prospective observational study of women with singleton pregnancies and a placental edge between 11 and 20 mm from the internal cervical os (identified by transvaginal sonography) who underwent a trial of labour.
RESULTS
Fourteen women with the above characteristics underwent a trial of labour during the study period. The mean interval (± SD) from ultrasound to delivery was 17.2 ± 9.6 days. Thirteen women (92.9%) delivered vaginally with no complications, and only one woman (7.1%) required an emergency Caesarean section for intrapartum bleeding. The risks of antepartum and postpartum hemorrhage were 21.4% and 14.3%, respectively.
CONCLUSION
Having a placental edge more than 10 mm from the internal os, measured by transvaginal sonography near term, justifies allowing a trial of labour and carries a low risk of subsequent obstetrical hemorrhage.
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