Fetal Macrosomia (≥4500 g): Perinatal Outcome of 231 Cases According to the Mode of Delivery

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Abstract
OBJECTIVE: To determine perinatal complications in infants 4500 g according to delivery mode. STUDY DESIGN: Records of 231 mothers and live cephalic infants weighing 4500 g over a 13-year period were retrospectively reviewed. Maternal and perinatal complications were compared in relation to delivery mode. RESULTS: Vaginal delivery (NVD) was achievable in 168/189 (88.9%) of women allowed to labor, of which 36.9% were operative. The cesarean delivery (CS) rate was 27.3%. The NVD group had a lower incidence of diabetes; however, hypoglycemia and transient tachypnea were more common in the CS group. The frequency of low Apgar scores at 1 and 5 minutes was similar in both groups. A total of 13 (7.7%) major fetal injuries were documented in the NVD group (arm weakness 3, hematoma 3, clavicular fracture 2, and brachial plexus injury 5). Shoulder dystocia was documented in only 7/13 (53.8%). CONCLUSION: Vaginal delivery is achievable in 88.9% of pregnancies with infants 4500 g allowed to labor, at the expense of a 7.7% risk of perinatal trauma.

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