Background: Nausea and vomiting in early stages of pregnancy is a common complaint. In patients with HEG (hyperemesis gravidarum) adverse fetal outcomes, including abortion, preterm delivery, low birth weight (LBW) and maternal outcome (e.g. preeclampsia) are more common than in normal pregnancy. In this study, we evaluate the incidence of some adverse fetal and maternal complications among the patients with HEG.

Materials and Methods: This study was performed on 70 patients (under 14 weeks of gestations) with HEG admitted in Yahya-Nejad hospital (Babol) as the study group and 100 cases referred to prenatal care as the control group. All the patients were followed up until the time of delivery.

Results: The incidence of preterm delivery in the HEG and control group was 9.4% and 1%, respectively, considered statistically significant (P=0.015). The incidence of abortion in the HEG and control group was 8.6% and 1%, respectively, which was significant (P=0.02). The incidence of gestational diabetes in control and HEG group was 0% and 10.9%, respectively (P=0.001). There was no significant difference between the study group and the control one in terms of the type of delivery, weight / mortality of neonates and preeclampsia.

Conclusions: Considering the high incidence of gestational diabetes, preterm delivery, abortion and morbidity of neonates in patients with HEG, close observation of patients with HEG during the pregnancy is recommended.