• Arch. Gynecol. Obstet. · Aug 2012

    Risk factors for neonatal brachial plexus paralysis.

    • Rania Okby and Eyal Sheiner.
    • Department of Obstetrics and Gynecology, Faculty of Health Sciences, Soroka University Medical Center, Ben-Gurion University of the Negev, P.O. Box 151, Be'er Sheva, Israel. okby@bgu.ac.il
    • Arch. Gynecol. Obstet. 2012 Aug 1; 286 (2): 333-6.

    PurposeThe study was aimed to identify risk factors for neonatal brachial plexus paralysis.MethodsA retrospective case-control study was designed. A comparison was performed between cases of brachial plexus paralysis, with all consecutive deliveries during the same 5 months period, without brachial plexus paralysis. Statistical analysis was performed using the SPSS package.ResultsThe prevalence of brachial plexus paralysis was 1.62/1,000 (9/5,525) vaginal births. Independent risk factors for brachial plexus paralysis were shoulder dystocia (OR = 525; 95% CI 51-4,977, P < 0.001), vacuum delivery (OR = 16.4; 95% CI 3.7-70.5, P < 0.001), macrosomia (birth weight >4,000 g; OR = 16.3; 95% CI 3.7-70.2, P < 0.001), prolonged second stage (OR = 40.8; 95% CI 7.9-188.2, P < 0.001) and vaginal breech delivery (OR = 36.1; 95% CI 4.5-262.5, P = 0.032).ConclusionsIn our population, shoulder dystocia, macrosomia, labor dystocia, vacuum delivery and vaginal breech deliveries were significant risk factors for neonatal brachial plexus paralysis, while maternal characteristics such as obesity and diabetes were not. Despite our growing knowledge concerning the risk factors associated with brachial plexus paralysis, unfortunately, this condition cannot be predicted or prevented.

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