Risk factors for pre-eclampsia, eclampsia, and associated adverse outcomes in Hajjah, Yemen

Effect of preeclampsia and premature rupture of membrane on neonatal birth weight and length by gestational age: A retrospective study in China

Background:

Preeclampsia (PE) and premature rupture of membrane (PROM) are considered significant risk factors for lower neonatal birth weight and birth length. However, very limited studies have reported the impact of PE and PROM on neonatal birth weight and birth length by gestational week. Therefore, we aimed to determine the effect of PE and PROM on neonatal birth weight and length by gestational age.

Materials and Methods:

A total of 9707 singleton neonates were selected for this study. All the data were collected and documented in the obstetric register by the trained nurses in the Gynecology and Obstetrics Department.

Results:

The neonatal mean birth weights and birth lengths were statistically significantly (P < 0.05) lowered among preeclamptic mothers compared to mothers without PE throughout the gestational age. Statistically significantly (P < 0.05) lowered mean birth weights and birth lengths were found among neonates born to mothers with PROM than among neonates born to mothers without PROM by all gestational weeks except for 32 weeks and 36 weeks. Moreover, in a multiple linear regression model, PE and PROM were significantly negatively associated with neonatal birth weights and birth lengths by almost all gestational weeks (β <0, P < 0.05).

Conclusion:

We concluded that after adjustment for covariates and confounding factors, PE and PROM had a significantly negative association with neonatal birth weights and birth lengths by all gestational weeks.

Pre-eclampsia and preterm birth in Reunion Island: a 13 years cohort-based study. Comparison with international data

OBJECTIVES

To assess the prevalence of preterm birth in pre-eclamptic deliveries in Reunion Island, a tropical overseas French department (départements d'outre-mer, DOM) and to compare this prevalence with that of international literature.

METHODS

All singleton live-born deliveries referred to three maternity centers in Reunion Island over 13 years were eligible. Data for comparison were found through searches of MEDLINE, bibliographies of identified studies, proceedings of meetings on pre-eclampsia and contact with relevant researchers. Incidence of pre-eclampsia, proportion of preterm (<37(0/7) weeks gestation), late (34(0/7)-36(6/7) weeks) and early (<34(0/7) weeks) preterm birth in pre-eclamptic deliveries were analyzed.

RESULTS

Pre-eclampsia occurred in 2.3% of 51 927 singleton live-born deliveries in Reunion Island. The prevalence of preterm birth among pre-eclamptic deliveries was 59.8% (28.6% late and 31.2% early preterm birth). Among identified reports, only one prospective study from Canada (1986-1995) described preterm and early preterm birth rates higher than Reunion Island. A cohort-based report from Guadeloupe, another tropical French DOM, showed a preterm birth prevalence of 60.9%, with 30.8% of early preterm birth.

CONCLUSIONS

Predominance of early- or late-onset pre-eclampsia has huge geographical differences. Further investigations are required to address risk factors for preterm birth and early onset pre-eclampsia in French DOM.