Objective: Postpartum hemorrhage (PPH) is a major cause of maternal mortality and morbidity worldwide. The purpose of this study was to evaluate if meconium-stained amniotic fluid (MSAF) is a risk factor for PPH after vaginal delivery.
Patients And Methods: We retrospectively analyzed medical records of all patients who had a vaginal delivery at Fujian Provincial Maternity and Children's Hospital, between 1st January 2013 to 31st December 2018. Women with cesarean deliveries, multiple pregnancies, abnormal coagulation profile, and those with concomitant liver or kidney disorders were excluded. Patients were classified into MSAF (n=13686) and clear amniotic fluid (AF) (n=41511) groups.
Results: The incidence of PPH was significantly higher at 2.7% (370/13686) in the MSAF group as compared to 2.18% (904/41511) in the clear AF group (p=0.0004). There was no difference in the incidence of severe PPH between the two groups. Statistically significant difference in the incidence of PPH between MSAF and clear AF was seen in the maternal age groups of 30-34 and 35-39 years, gestational age>40weeks and >3 gravidity (p<0.05).
Conclusions: Our study demonstrates that MSAF is a significant risk factor for minor and moderate PPH. Presence of meconium could therefore alert clinicians to expect PPH and make arrangements for further patient management. Further basic research is required to evaluate the mechanism by which meconium influences the incidence of PPH.
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