Comparison of the Rate of Fetomaternal Hemorrhage in Normal Vaginal and Cesarean Delivery

Prophylaxis of Rh immunization has a critical role in the Rh negative pregnant women for prevention of fetal erythroblastosis. The aim of this study was to evaluate the fetomaternal hemorrhage (FMH) in relation to the delivery mode.

In this case- control study. 170 pregnant women (85 terminated by normal vaginal delivery and equal number by cesarean section) were studied in 2005 in Ghaem hospital affiliated to Mashhad university of medical sciences.The data was collected by a questionnaire, Klei hauver and Betke test was done, and the correlation between measured variables and FMH was studied. The results were analyzed by SPSS software (SPSS, Inc. Chicago, IL) version 11.5 by using The Students’t and Man-Whitney U tests.

The extent of fetomaternal hemorrhage was significantly different according to the gestational hypertension, twin pregnancy, still birth, abruptio placenta, placenta previa, gestational age and sex of the fetus; but there was no significant difference according to the mode of delivery, maternal blood group and Rh, maternal age, gravidity and the extent of fetomaternal hemorrhage.

In this study, there was no difference in the extent of FMH according to the mode of delivery and so the needed doses of anti-D.