Occiput posterior fetal head position increases the risk of anal sphincter injury in vacuum-assisted deliveries - 18/08/11
Abstract |
Objective |
The purpose of this study was to determine whether an occiput posterior (OP) fetal head position increases the risk for anal sphincter injury when compared with an occiput anterior (OA) position in vacuum-assisted deliveries.
Study design |
We conducted a retrospective cohort study of 393 vacuum-assisted singleton vaginal deliveries. Maternal demographics and obstetric and neonatal data were collected from an obstetric database and chart review.
Results |
Within the OP group, 41.7% developed a third- or fourth-degree laceration compared with 22.0% in the OA group (OR 2.5, 95% CI 1.4-4.7). In a logistic regression model that controlled for BMI, race, nulliparity, length of second stage, episiotomy, birth weight, head circumference, and fetal head position, OP position was 4.0 times (95% CI 1.7-9.6) more likely to be associated with an anal sphincter injury than OA position.
Conclusion |
Among vacuum deliveries, an OP head position confers an incrementally increased risk for anal sphincter injury over an OA position.
Le texte complet de cet article est disponible en PDF.Key words : Operative vaginal delivery, Vacuum delivery, Occiput posterior position, Anal sphincter injury, Anal incontinence
Plan
| Presented at the Sixty-Seventh Annual Meeting of the South Atlantic Association of Obstetricians and Gynecologists, January 22-25, 2005, White Sulphur Springs, WVa. Reprints not available from the authors. |
Vol 193 - N° 2
P. 525-528 - août 2005 Retour au numéro
Article précédent
- Notable presentations in the history of the South Atlantic Association of Obstetricians and Gynecologists
- Robert Brame
- Discussion
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