Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California, USA.
Obstet Gynecol. 2012 Sep;120(3):539-41. doi: 10.1097/AOG.0b013e318264f644.
Neonatal brachial plexus palsy frequently is described in conjunction with shoulder dystocia complicating a vaginal delivery. In this study, we present a series of cases of severe brachial plexus palsy that occurred without shoulder dystocia.
Cases were identified from deliveries at the Los Angeles County and University of Southern California Medical Center. Various maternal and neonatal characteristics were analyzed.
Eight cases without shoulder dystocia but with severe brachial plexus palsy requiring neonatal intensive care unit admission were identified. None of the patients had maternal diabetes, previous shoulder dystocia, previous macrosomia, or labor induction. The mean second stage of labor was normal (2.15 ± 1.93), as was the mean birth weight (3,514 ± 1,043). One case required cesarean delivery.
These results demonstrate that severe brachial plexus palsy occurs in women without shoulder dystocia and without identifiable risk factors.
新生儿臂丛神经麻痹常与阴道分娩时并发的肩难产一起描述。在这项研究中，我们报告了一系列无肩难产但发生严重臂丛神经麻痹的病例。
从洛杉矶县和南加州大学医疗中心的分娩中确定病例。分析了各种产妇和新生儿特征。
确定了 8 例无肩难产但需要新生儿重症监护病房入院治疗的严重臂丛神经麻痹病例。无患者有母体糖尿病、既往肩难产、既往巨大儿或引产。第二产程平均正常（2.15±1.93），出生体重平均（3514±1043）。1 例需要剖宫产。
这些结果表明，严重臂丛神经麻痹发生在无肩难产且无明显危险因素的女性中。
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