Yang Xiao, Zeng Weiyue
Obstetrics and Gynaecology, Chengdu Women and Children Health Hospital, Chengdu, Sichuan Province, China.
J Obstet Gynaecol Res. 2011 Aug;37(8):1048-53. doi: 10.1111/j.1447-0756.2010.01483.x. Epub 2011 Apr 12.
To investigate the incidence, causes and delivery methods of iatrogenic preterm births.
MATERIAL & METHODS: A retrospective study was conducted to review a cohort of preterm birth records to learn the incidence, causes and delivery methods of 828 iatrogenic preterm births from January 2004 to June 2007. The chi-squared and two tailed Student's t-test were used for statistical analysis.
During the 3.5-year study period, the total incidence of iatrogenic preterm birth was 6.4%, accounting for 49.8% of the total recorded preterm births. Specifically, the proportion of iatrogenic preterm births to the total recorded preterm births in 2005 was 51.9%, the highest during the study. The top three etiologies of iatrogenic preterm birth were intrahepatic cholestasis of pregnancy, hemorrhage and hypertensive disorder complicating pregnancy. Among the preterm births studied, 62 pregnancies delivered prior to term were for no recorded indications. Seven hundred and twenty-nine iatrogenic preterm births underwent cesarean section.
Iatrogenic preterm birth has become the main reason for preterm births and no recorded indications have become one cause of it. Cesarean delivery was the main delivery method among iatrogenic preterm births. Obstetricians should choose the delivery method strictly.
探讨医源性早产的发生率、病因及分娩方式。
进行一项回顾性研究，回顾一组早产记录，以了解2004年1月至2007年6月期间828例医源性早产的发生率、病因及分娩方式。采用卡方检验和双尾学生t检验进行统计分析。
在3.5年的研究期间，医源性早产的总发生率为6.4%，占记录的早产总数的49.8%。具体而言，2005年医源性早产占记录的早产总数的比例为51.9%，是研究期间最高的。医源性源性早产的前三大病因是妊娠期肝内胆汁淤积症、出血和妊娠合并高血压疾病。在所研究的早产中，62例孕周前分娩无记录指征。729例医源性早产进行了剖宫产。
医源性早产已成为早产的主要原因，无记录指征是其原因之一。剖宫产是医源性早产的主要分娩方式。产科医生应严格选择分娩方式。
