European journal of obstetrics, gynecology, and reproductive biology · 2013
Factors that influence the incision-delivery interval at caesarean section and the impact on the neonate: a prospective cohort study.
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Pearson Greg A, MacKenzie Ian Z
Аннотация
OBJECTIVE: To determine the range of, and influences on, the incision-delivery interval (IDI) and the impact on neonatal condition at delivery.
STUDY DESIGN: Analysis of prospectively collected cohort data from all women delivered by caesarean section over 12 months in an obstetric unit delivering 6000 women per year. Prospective data were collected from clinical records, with factors that influence IDI and relationship to neonatal condition at birth as the main outcome measures.
RESULTS: IDI was recorded for 1379 (93%) caesarean sections and ranged between 1 and 37min; median (IQR) was 6 (5-8)min, and for 3% the interval was longer than 15min. Category 1 and 2 caesarean sections had shorter IDI than categories 3 and 4 and intrapartum operations had significantly shorter IDI at 5 (3-8)min than antepartum at 7 (5-9)min (P<0.0001). Factors associated with longer IDI included previous delivery by caesarean section, increased maternal body mass index (BMI), regional anaesthesia, larger neonatal birthweight and technical problems including intraperitoneal adhesions, but did not include fetal malpresentation, multiple pregnancy, grade of surgeon or stage of labour. IDI had no impact on neonatal condition at birth.
CONCLUSIONS: Prolonged IDI does not adversely affect neonatal outcome, but factors associated with prolonged IDI should be acknowledged when assessing decision-to-delivery interval target times.
STUDY DESIGN: Analysis of prospectively collected cohort data from all women delivered by caesarean section over 12 months in an obstetric unit delivering 6000 women per year. Prospective data were collected from clinical records, with factors that influence IDI and relationship to neonatal condition at birth as the main outcome measures.
RESULTS: IDI was recorded for 1379 (93%) caesarean sections and ranged between 1 and 37min; median (IQR) was 6 (5-8)min, and for 3% the interval was longer than 15min. Category 1 and 2 caesarean sections had shorter IDI than categories 3 and 4 and intrapartum operations had significantly shorter IDI at 5 (3-8)min than antepartum at 7 (5-9)min (P<0.0001). Factors associated with longer IDI included previous delivery by caesarean section, increased maternal body mass index (BMI), regional anaesthesia, larger neonatal birthweight and technical problems including intraperitoneal adhesions, but did not include fetal malpresentation, multiple pregnancy, grade of surgeon or stage of labour. IDI had no impact on neonatal condition at birth.
CONCLUSIONS: Prolonged IDI does not adversely affect neonatal outcome, but factors associated with prolonged IDI should be acknowledged when assessing decision-to-delivery interval target times.