• Hsiu-Wei Su, Yu-Chiao Yi, Jenn-Jhy Tseng, Wei-Chih Chen, Ya-Fang Chen, Hsiao-Fan Kung, and Min-Min Chou.
• Department of Obstetrics, Gynecology and Women's Health, Taichung Veterans General Hospital, Taichung, School of Medicine, National Yang Ming University, Taiwan.
• Taiwan J Obstet Gynecol. 2017 Jun 1; 56 (3): 353-357.

ObjectiveThe purpose of this study was to describe our preliminary experience of the efficacy and safety of a conservative strategy for abnormally invasive placenta.Materials And MethodsA retrospective review of eight pregnant women with abnormally invasive placenta (one with placenta previa accrete, three with placenta previa increta, and four with previa percreta) was performed. The diagnosis was made by prenatal ultrasonography, and was confirmed by operative and histopathological findings. Patients who desired future fertility or who had extensive diseases were selected as candidates after panel meeting. Conservative management after obtaining informed consent was defined by a primary cesarean delivery before 35 weeks of gestation with the abnormally adherent placenta left in situ, partially or totally. The primary outcome was successful uterine preservation. The secondary outcome was severe maternal morbidity including sepsis, coagulopathy, immediate or delayed hemorrhage bladder injury, and fistula.ResultsAmong the eight patients, the mean age was 34 ± 3 years (range, 30-40 years). All women had risk factors, such as placental previa, previous cesarean delivery and/or dilation & curettage, for abnormally invasive placenta. Seven women underwent planned cesarean delivery at the mean gestation age of 34 weeks (range, 31-37 weeks). One woman received hysterotomy at 18 weeks. In our series, the uterus was preserved in only two cases (25%), one who received hysterotomy at a relatively young gestational age and another who had mild disease. Mean maternal blood loss during primary cesarean delivery was 528 ± 499 ml (range, 100 ml-1,500 ml). Severe maternal morbidity was recorded in seven out of eight patients (87.5%).ConclusionIn this small series, we observed a low successful uterine preservation rate and a high maternal complication rate. We recommend that primary cesarean hysterectomy should be used as the treatment of choice for mild to severe abnormally invasive placenta. Conservative management should be reserved for women with a strong fertility desire and women with extensive disease that precludes primary hysterectomy due to surgical difficulty.Copyright © 2017. Published by Elsevier B.V.

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