International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2017
A cross-sectional study exploring the incidence of and indications for second-stage cesarean delivery over three decades.
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Pearson Greg A, MacKenzie Ian Z
Аннотация
OBJECTIVE: To observe the incidence of, indications for, and complications associated with second-stage cesarean delivery in 10-year intervals over 30 years.
METHODS: The present analysis of prospectively collected data compared cesarean deliveries during 1976, 1986, 1996, and 2006 at John Radcliffe Hospital in Oxford, UK (n=3222). Pregnancy, delivery, and neonatal details were reviewed.
RESULTS: The proportion of deliveries by cesarean in the second stage of labor increased from 0.5% (22/4464) in 1976 to 2.1% (124/5998) in 2006 (P<0.001). The proportion of cesarean deliveries during the second stage because of failed instrumental delivery also increased over the study period from 59.1% (13/22) in 1976 to 71.0% (88/124) in 2006. Compared with cesareans at other stages, uterine trauma (P<0.001), blood loss greater than 1000 mL (P=0.002), and blood transfusion (P=0.001) were more frequent in second-stage cesarean delivery. Neonates delivered by second-stage cesarean had lower Apgar scores (P<0.001 for 1-min and 5-min scores) and cord arterial pH values (P<0.001) than did those delivered by cesarean earlier in labor. A trend towards an increase in neonatal trauma with second-stage cesarean compared with cesarean delivery before labor or during the first stage did not reach statistical significance.
CONCLUSION: The proportion of deliveries by cesarean in the second stage of labor increased; these deliveries were associated with greater maternal and neonatal morbidity, but were not influenced by the indication for cesarean.
METHODS: The present analysis of prospectively collected data compared cesarean deliveries during 1976, 1986, 1996, and 2006 at John Radcliffe Hospital in Oxford, UK (n=3222). Pregnancy, delivery, and neonatal details were reviewed.
RESULTS: The proportion of deliveries by cesarean in the second stage of labor increased from 0.5% (22/4464) in 1976 to 2.1% (124/5998) in 2006 (P<0.001). The proportion of cesarean deliveries during the second stage because of failed instrumental delivery also increased over the study period from 59.1% (13/22) in 1976 to 71.0% (88/124) in 2006. Compared with cesareans at other stages, uterine trauma (P<0.001), blood loss greater than 1000 mL (P=0.002), and blood transfusion (P=0.001) were more frequent in second-stage cesarean delivery. Neonates delivered by second-stage cesarean had lower Apgar scores (P<0.001 for 1-min and 5-min scores) and cord arterial pH values (P<0.001) than did those delivered by cesarean earlier in labor. A trend towards an increase in neonatal trauma with second-stage cesarean compared with cesarean delivery before labor or during the first stage did not reach statistical significance.
CONCLUSION: The proportion of deliveries by cesarean in the second stage of labor increased; these deliveries were associated with greater maternal and neonatal morbidity, but were not influenced by the indication for cesarean.