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近20多年来,由于孕妇的年龄偏大和辅助生育技术的应用,双胎以及多胎妊娠的发生率逐渐增加。双胎妊娠比单胎妊娠发生早产和胎膜早破的风险更高[1]。有资料研究表明,双胎妊娠的PROM发生率约7·1%[2],由于双胎胎儿体重较小,所以易发生新生儿败血症、肺发育不全、肾功能不全以及围
In the past 20 years, the incidence of twins and multiple pregnancies has been gradually increasing due to the age of pregnant women and the application of assisted reproductive technology. Twin pregnancies have a higher risk of preterm birth and premature rupture of membranes than singleton pregnancies [1]. Data studies show that the incidence of PROM in twin pregnancies is about 7.1% [2]. Neonatal sepsis, lung hypoplasia, renal insufficiency,