The Prenatal outcomes of pregnancies after 34 weeks complicated by preterm premature rupture of the membranes

Background: Preterm premature rupture of the membranes (PPROM) is a condition that can occur in pregnancy as well as causes one-third of all preterm births. The aim of our study was to assess the perinatal outcome in PPROM after 34 weeks' gestation. Materials and Methods: This historical cohort study was conducted by 602 pregnant participants, including 300 women with PPROM and 302 women without PPROM between 34 and 37 weeks who were admitted at Qom's Izadi Hospitals during April 2013 and March 2015, Iran. Data were extracted from the patient's dossier and entered in checklist. Then were analysed by the t-test and Chi-squared and Fisher's exact tests in SPSS software. Results: The mean maternal age of the participants was 28.8 years (range: 16–51 years). The independent t-test showed that the mean of infant weight (P = 0.002) and Apgar score in the 5th min (P = 0.044) after delivery was statistically significant between no-PPROM and PPROM groups. There was a significant difference regarding receiving corticosteroid (odds ratio [OR] = 0.2.05), lower birth weight 2500 g (OR = 1.44), girls gender of baby (OR = 1.24), respiratory distress syndrome (RDS) (OR = 1.81), unhealthy infant (OR = 4.44), sepsis (OR = 1.60), tachypnoea (OR = 2.03) and other neonatal complications (OR = 1.702). Conclusion: RDS, sepsis, tachypnoea and other perinatal outcomes are more common in women with PPROM. Hence, in view of the unfavourable outcome, preventive measures and control of PPROM are essential.