1临床资料1.1一般资料10例均为初产妇,年龄21~30岁,平均27岁;发病于妊娠31~40周,单胎妊娠5例,35周以后发病;双胎妊娠4例,31周以后发病,3胎妊娠1例31周发病,平均35.4周发病;从发病到入院就诊时间2~11d,平均5d;住院2h~31d,平均26d。胎儿有8男婴,4女婴。1.2临床表现10例均无诱因出 1 Clinical data 1.1 General information 10 cases are primipara, aged 21 to 30 years, mean 27 years; incidence in 31 to 40 weeks of pregnancy, singleton pregnancy in 5 cases, 35 weeks after onset; twin pregnancy in 4 cases, 31 weeks After the onset, 3 pregnancies in 1 case 31 weeks of onset, an average of 35.4 weeks of onset; from onset to admission treatment time 2 ~ 11d, an average of 5d; hospitalization 2h ~ 31d, an average of 26d. Fetus has 8 baby boys, 4 baby girls. 1.2 Clinical manifestations of 10 cases were no incentive