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becca74
19-04-2007, 02:42
Here's the latest research:


BJOG: An International Journal of Obstetrics and Gynaecology

Volume 114 Issue 5 Page 609 - May 2007

To cite this article: Q Yang, SW Wen, L Oppenheimer, XK Chen, D Black, J Gao, MC Walker (2007)

Association of caesarean delivery for first birth with placenta praevia and placental abruption in second pregnancy

BJOG: An International Journal of Obstetrics and Gynaecology 114 (5), 609–613.



Published OnlineEarly 12 March 2007.

Abstract
Objective To quantify the risk of placenta praevia and placental abruption in singleton, second pregnancies after a caesarean delivery of the first pregnancy.

Design Retrospective cohort study.

Setting Linked birth and infant mortality database of the USA between 1995 and 2000.

Population A total of 5 146 742 singleton second pregnancies were available for the final analysis after excluding missing information.

Methods
Multiple logistic regressions were used to describe the relationship between caesarean section at first birth and placenta praevia and placental abruption in second-birth singletons.

Main outcome measures Placenta praevia and placental abruption.

Results
Placenta praevia was recorded in 4.4 per 1000 second-birth singletons whose first births delivered by caesarean section and 2.7 per 1000 second-birth singletons whose first births delivered vaginally. About 6.8 per 1000 births were complicated with placental abruption in second-birth singletons whose first births delivered by caesarean section and 4.8 per 1000 birth in second-birth singletons whose first births delivered vaginally. The adjusted odds ratio (95% CIs) of previous caesarean section for placenta praevia in following second pregnancies was 1.47 (1.41, 1.52) after controlling for maternal age, race, education, marital status, maternal drinking and smoking during pregnancy, adequacy of prenatal care, and fetal gender. The corresponding figure for placental abruption was 1.40 (1.36, 1.45).

Conclusion
Caesarean section for first live birth is associated with a 47% increased risk of placenta praevia and 40% increased risk of placental abruption in second pregnancy with a singleton.



Scary for me, as these are risks that I have had thrust upon me unnecessarily. Even though I have had 2 vbacs, I am still vulnerable to these risks, thanks to the knObs who butchered me for no other reason than their own inadequacy as birth care-providers.


Just wanted to make it clear though, before anyone is unnecesarily frightened....ultrasound can detect this issue quite well (and usually care-providers err on the side of caution). I am not a big fan of ultrasound, but because I was unfortunately butchered whilst in labour for my 1st and 3rd babies, I have an actual reason to need one for subsequent pregnancies, to rule out placenta praevia and placental abruption.