Currently, the study about intervention on the induced abortion at trimester is so little. So, the investigators want to compare the safety and effectiveness of different induced labor.
In this study , the investigators want to compare the safety and effectiveness of different induced labor. The safety and effectiveness such as the success rate of induced labor and the gestation outcome,etc.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Masking
DOUBLE
Enrollment
300
There are two groups. Acoording to the bishop score, one group uses the oxytocin , and the other uses the cook balloon. This group is term gestaion,with bishop score less than 6.
West China Second Hospital
Chengdu, Sichuan, China
RECRUITINGThe success rate of induced labor
Time frame: one year
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