Abstract
Summary. During the 10-year period 1 January 1979 to 31 December 1988, polyhydramnios occurred in 537 patients with singleton pregnancies delivered at the Mercy Maternity Hospital. Associated maternal and fetal complications and the perinatal outcome of thcsc prcgnancics with polyhydramnios were analysed. In 248 of the 537 pregnancies (46%) in this group there were no maternal complications or fetal malformations and the perinatal mortality (PNM) rate was 2.4%. The PNM rate increased significantly to 13.1 Yo when thcrc was iissociated pre-eclampsia, 10% with gestational diabetes, and to 7.6% with miscellaneous complications. When polyhydramnios was associated with a fetal or placental malformation the PNM rate was 61.4%. The commonest malformations were central nervous system (31 %), musculoskcletal (12%) and gastrointestinal system anomalies (1 0%). Placental chorioangioma occurred in two patienlh (0.4%) and both babies died. In women with low oestriol excretion (18% of the 455 tcsted) the PNM rate increased five times to 22.7%. Polyhydramnios occurs in 0.4%-1.2% of pregnancies (Mi~cafee 1950: Queenan & Gadow 1970) and it is associated with a high perinatal mortality ratc duc to fetal malformations and immaturity; it is also associated with diabetes and possibly with pre-eclampsia. This study analyses these and other associations of thc various typcs of polyhydramnios in 5 1 022 consecutive singleton pregnancies managed at the Mercy Maternity Hospital. Melbourne, during the 10-years. 3979-1988. Subjects and methods
Published Version
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