• Tatjana Barišić, Vjekoslav Mandić, Vajdana Tomić, Ana Zovko, and Gorjana Novaković.
• a Department of Obstetrics and Gynecology University Clinical Hospital Mostar , Mostar , Bosnia and Herzegovina.
• J. Matern. Fetal. Neonatal. Med. 2017 Mar 1; 30 (5): 580-584.

AimTo evaluate the perinatal outcomes of newborns after premature rupture of membranes (PROM) at the term according to the timing of initial antibiotic administration.Material And MethodsThis is a retrospective, cohort study investigating perinatal outcomes of newborns in pregnant women with PROM at the term who were treated with ampicillin within or after 6 h from the PROM. Statistical analysis was performed using Student's t-test for continuous variables test and chi-square or for categorical data.ResultsThe study involved 144 pregnant women with PROM and their newborns, a lower number received antibiotics after birth were in the group who received antibiotics within 6 h of PROM (26.4% versus 73.6%), the mediane values of C-reactive protein were lower (3.0 ± 2.9 mg/l versus 6.1 ± 7.3 mg/l; p < 0.001), their newborns remained shorter in hospital after birth (4.13 versus 4.94; p =0.023) and time between PROM and delivery was shorter (p < 0.001). In group who received prophylactic antibiotics after 6 h of the PROM had significantly higher frequency of infection in newborns (45.3% versus 15.4%), and higher number of chorioamnionitis (9.72% versus 3,47%) compared to group who received antibiotics within 6h.ConclusionTimely usage of antibiotic prophylaxis and shorter time between PROM and delivery improve perinatal outcomes.

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