Labor induction with dinoprostone or oxytocine and postpartum disseminated intravascular coagulation: A hospital-based case-control study - 25/08/11
, Carmen M. Meseguer, Pharm a, Guillermo Antiñolo, MD, PhD b, Luis A. García Rodríguez, MD, MSci c, Dolores Montero, MD, PhD a, Juan R. Castillo, MD, PhD d, Jaume Torelló, MD d
Reprint requests: Francisco J. de Abajo, MD, PhD, MPH, División de Farmacoepidemiología y Farmacovigilancia, Agencia Española del Medicamento y Productos Sanitarios, Ctra. Majadahonda a Pozuelo Km. 2, 28220 Majadahonda, Madrid, Spain.Abstract |
Objective |
This study was undertaken to test the hypothesis of an association between pharmacologic agents used for labor induction, in particular dinoprostone, and postpartum disseminated intravascular coagulation (DIC).
Study design |
A retrospective hospital-based case-control study. Adjusted odds ratios (AOR) were calculated by a conditional logistic regression.
Results |
Forty valid cases of postpartum DIC were compared against 197 matched controls. Labor was induced in 17% of controls, and 56% of cases (AOR=7.2; 95% CI: 2.1-24.6). The association was observed for both dinoprostone (AOR=6.7; 95% CI: 1.7-26.5) and oxytocin (AOR=8.4; 95% CI: 1.4-50.9). Other risk factors identified were as follows: a maternal age older than 34 years (AOR=9.5; 95% CI: 2.4-37.7), complications during pregnancy (AOR=5.5; 95% CI: 1.3-22.8), and a gestational age of over 40 weeks (AOR=3.5; 95% CI: 1.1-11.1). Such factors were shown to also have an interaction with the induction of labor. Oxytocin augmentation showed a negative association (AOR=0.1; 95% CI: 0.02-0.4). The absolute risk attributable to induction was estimated in 5 per 10,000 deliveries.
Conclusion |
The pharmacologic induction of labor is associated with an increased risk of postpartum DIC, regardless the substance used. Although the absolute risk seems to be quite low, the obstetricians should not neglect it, in particular for the special risk groups identified.
Le texte complet de cet article est disponible en PDF.Key words : Dinoprostone, Prostaglandin E2, Oxytocin, Labor induction, Postpartum disseminated intravascular coagulation
Plan
| Supported by the Spanish Medicines Agency with the support of the Spanish Society of Obstetrics and Gynecology. Pharmacia, the marketing authorization holder of the gel form of dinoprostone, helped financially with the logistics of the study and took part as an observer in the Scientific Committee. |
Vol 191 - N° 5
P. 1637-1643 - novembre 2004 Retour au numéro
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