• 作者：Raquel Crespo Esteras ; ^{raquel2crespo@hotmail.com} ; Carlos Lapresta Moros ; Sergio Castá ; n Mateo ; Primitivo Contamina Gonzalvo ; Belé ; n Rodrí ; guez Solanilla ; José ; Javier Tobajas Homs
• 关键词：Gestació ; n de 41 semanas ; Embarazo prolongado ; Morbilidad perinatal ; Mortalidad perinatal
• 刊名：Progresos de Obstetricia y Ginecolog¨ªa
• 出版年：2011
• 出版时间：January 2011
• 年：2011
• 卷：54
• 期：1
• 页码：9-15
• 全文大小：175 K

Objective

The aim of this study was to evaluate the perinatal morbidity and mortality associated with pregnancies ending at 41 weeks.

Subjects and methods

We designed a retrospective cohort study. The perinatal outcomes of 230 pregnancies ending at 41 weeks?gestation were compared with those of 234 pregnancies ending at between 37 and 40 weeks?gestation at the Miguel Servet University Hospital in 2005.

Results

The rates of oligohydramnios, meconium-stained amniotic fluid, macrosomia, 5-minute Apgar score < 7 and low umbilical artery pH were all increased at 41 weeks?gestation compared with pregnancies ending at between 37 and 40 weeks?gestation (P < .05).

Conclusions

We found that the rates of perinatal complications increased as pregnancy was prolonged to 41 weeks. Accurate investigation of these rates is important to determine the gestational age at which the risk of continuing the pregnancy outweighs the risk of labor induction.