Korbin C D, Benson C B, Doubilet P M
Department of Radiology, Harvard Medical School, Brigham and Women's Hospital, Boston, MA 02115, USA.
Radiology. 1998 Mar;206(3):773-5. doi: 10.1148/radiology.206.3.9494500.
To assess pregnancy outcome in patients with amniotic sheets and to determine whether outcome is affected by placental implantation on the amniotic sheet.
Sonograms obtained during the 2nd and 3rd trimesters were reviewed in 157 patients with amniotic sheets to confirm the presence of an amniotic sheet and to determine the relationship of the placenta to the amniotic sheet. The cesarean section rate, gestational age at birth, birth weight, birth weight percentile, and Apgar score 1 minute after birth were recorded in patients in whom the postnatal follow-up data were available. Data were compared with overall data obtained at the authors' institution during the same period.
The placenta appeared implanted on the amniotic sheet in 41 (26.1%) of the 157 patients. In the 120 patients with amniotic sheets and follow-up data, the cesarean section rate was 32.5% compared with 21.5% overall. The mean gestational age at birth was slightly lower than that overall (38.2 vs 39.0 weeks, P < .001), but the birth weight percentile was similar (48.6% vs 50.0%, P = .58). No statistically significant differences were found in postnatal follow-up data between pregnancies with placental implantation on and in those without implantation on the amniotic sheet.
Pregnancy outcome is similar in patients with and in those without placental implantation on the amniotic sheet.
评估羊膜带患者的妊娠结局，并确定结局是否受羊膜带上胎盘植入情况的影响。
回顾了157例羊膜带患者在孕中期和孕晚期获得的超声图像，以确认羊膜带的存在，并确定胎盘与羊膜带的关系。记录了有产后随访数据患者的剖宫产率、出生孕周、出生体重、出生体重百分位数和出生后1分钟的阿氏评分。将数据与同期在作者所在机构获得的总体数据进行比较。
157例患者中有41例（26.1%）胎盘似乎植入在羊膜带上。在120例有羊膜带且有随访数据的患者中，剖宫产率为32.5%，而总体剖宫产率为21.5%。出生时的平均孕周略低于总体水平（38.2周对39.0周，P <.001），但出生体重百分位数相似（48.6%对50.0%，P = 0.58）。在胎盘植入羊膜带的妊娠和未植入羊膜带的妊娠之间，产后随访数据未发现统计学上的显著差异。
胎盘植入羊膜带的患者与未植入羊膜带的患者妊娠结局相似。
