RESUMEN
The delivery of a macrosomic infant is a relatively common situation. It can put mother and fetus at high risk. The main maternal complications are the increase in cesarean rates, postpartum hemorrhage and cervicovaginal traumatic lacerations. The main fetal complication is shoulder dystocia increasing the risk of brachial plexus. The objective was to identify risk factors and maternal-fetal complications associated with fetal macrosomia. Comparative retrospective study conducted at Kairouan University Hospital maternity unit in 2010. We compared a group of 820 cases of macrosomic infants to a control group of 800 cases of infants born in the same period of time. During the study period we collected clinical data of 820 macrosomic cases on a total of 7.495 deliveries, corresponding to a total incidence of 10.94%. Several factors predisposing to fetal macrosomia were highlighted: Maternal age> 35 years was present in 28.5% of cases; Maternal obesity was found in 45% of cases; A personal history of macrosomia was noted in 28,8% of cases; Prolonged pregnancies > 41 weeks of amenorrhoea was noted in 35.6% of cases; Multiparity was found in 47% of cases. Maternal complications were essentially postpartum hemorrhage: 71 cases and genital traumas: 24 cases. Perinatal complications were dominated by shoulder dystocia: 27 cases (3.3%). Traumatic postpartum complications were found in 11.6%.