Rumina Tabassum, Shazia Shukaruddin, Uzma Nusrat.
Factors related to blood transfusion in placenta previa.
J Surg Pak Jan ;17(3):121-5.

Objective: To determine the frequency of blood transfusions in cases of placenta previa and to assess the factors influencing such a need. Study design: Descriptive case series. Place & Duration of study: Department of Obstetrics and Gynecology, Civil Hospital Karachi, from January 2009 to December 2010. Methodology: Clinical records of 88 cases of placenta previa were retrieved. Ten cases of placenta previa with multiple gestation, adherent placentae, placental abruption, maternal death on arrival and incomplete records were excluded. Seventy-eight cases were selected for the study. Structured proforma was used to collect information about transfusion of blood and blood products and the factors affecting need for transfusion. Results: The mean age of the patients was 28.37+4.74 year; parity was between 2 to 4 in 34(44 %) patients and 26 (34%) of the total cases were booked. A total of 177 (mean 2.3) transfusions were received by 59 (76.6%) patients. Seventy-five (97.6%) patients had anemia including 8(10.4%) cases of severe type. Patients aged below 25 or above 34 year, of un-booked status and parity below 2 or above 4, received more transfusions. Complete placenta previa, severity of anemia and signs of shock were significant determinants for transfusion. Majority of blood transfusions were given during the delivery or cesarean section. Conclusion: Pregnant woman with major placenta previa who presented with hemorrhage and already anemic, needed more replacement of blood.

PakMediNet -Pakistan's largest Database of Pakistani Medical Journals - http://www.pakmedinet.com