Effects of onset of labor and mode of delivery on severe postpartum hemorrhage.
Am J Obstet Gynecol
; 201(3): 273.e1-9, 2009 Sep.
Article
em En
| MEDLINE
| ID: mdl-19733277
ABSTRACT
OBJECTIVE:
Our purpose was to study the impact of labor onset and delivery mode on the risk of severe postpartum hemorrhage. STUDYDESIGN:
This was a population-based study of 307,415 mothers who were registered in the Medical Birth Registry of Norway from 1999-2004.RESULTS:
Severe postpartum hemorrhage occurred in 1.1% of all mothers and in 2.1% of those mothers with previous cesarean section delivery (CS). Compared with spontaneous labor, hemorrhage risk was higher for induction (odds ratio [OR], 1.71; 95% confidence interval [CI], 1.56-1.88) and prelabor CS (OR, 2.05; 95% CI, 1.84-2.29). The risk was 55% higher for emergency CS and half that for vaginal deliveries (OR, 0.48; 95% CI, 0.43-0.53), compared with prelabor CS. The highest risk was for emergency CS after induction in mothers with previous CS (OR, 6.57; 95% CI, 4.25-10.13), compared with spontaneous vaginal delivery in mothers with no previous CS.CONCLUSION:
Induction and prelabor CS should be practiced with caution because of the increased risk of severe postpartum hemorrhage.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Início do Trabalho de Parto
/
Cesárea
/
Hemorragia Pós-Parto
Tipo de estudo:
Risk_factors_studies
Limite:
Female
/
Humans
/
Pregnancy
Idioma:
En
Revista:
Am J Obstet Gynecol
Ano de publicação:
2009
Tipo de documento:
Article