Syeda Uzma, Bushra Afzal Kiani, Fatima Sharif Khan.
Frequency of Placenta Praevia with Previous Caesarean Section.
Ann Pak Inst Med Sci Jan ;11(4):202-5.

Background: There is a significant association between placenta praevia and previously scarred uterus through caesarean section and parity. This study was planned to assess this relationship in our target population. Methods: This cross sectional study was conducted in Obstetrics and Gynaecology department, Combined Military Hospital Bahawalpur. This study was conducted from May, 2014 to February 2015. The study was started by taking approval of the study from the hospital ethical committee. All the women who were enrolled for the study were antenatal cases with previous caesarean scar, after 32 weeks of gestation whether booked or un-booked with or without bleeding per vagina, visiting OPD or admitted for delivery were included in the study. Information from all the patients regarding no of caesarean sections, maternal age and parity were recorded on a pre-designed performa. Results: A total of 120 women with the history of previous caesarean delivery once or more were included. The mean age of the patients was 27.25±5.43 years with maximum number of patients having age between 26 to 30 years. Majority 49 (40.8%) of the patients had parity of 2 followed by 35 (29%) patients who had parity of 1.The frequency of placenta praevia was noted to be 33 (27.5%). There was significant association (p-value < 0.05) between number of previous caesarean sections and Placenta Praevia. The frequency of Placenta Praevia in women who had one c-section was (16.36%) and it increased to (66.67%) with four previous c-sections. There was significant (P-value < 0.05) association between parity and placenta praevia. In patients who had parity of one the frequency of placenta praevia was (17%) and in patients having parity of 3 or 4 the frequency of Placenta Praevia became (36.36%) and in patient having parity more than 4 the frequency of Placenta Praevia was noted to be (71.42%). The most common presenting complication was antepartum hemorrhage in 18 (54%) patients, followed by anaemia in 16 (48%) women with placenta praevia. Conclusion: Placenta Praevia has a significant association with increasing parity and increasing number of caesarean sections. This risk becomes very high with escalation in caesarean sections.

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