Evaluation of the efficacy of atosiban in pregnant women with threatened preterm labor associated with assisted reproductive technology.

OBJECTIVE: The present study aimed to investigate the effectiveness of atosiban in treating women with threatened preterm labor who had become pregnant through assisted reproductive technology (ART) and the corresponding pregnancy outcomes. PATIENTS AND METHODS: Seventy pregnant women with threatened preterm labor after ART were randomly divided into two groups, with 35 cases in the atosiban group and 35 in the ritodrine group. The post-treatment effects and the corresponding pregnancy outcomes were observed. RESULTS: The efficacy of extending gestational age by 48 hours was significantly higher in the atosiban group than in the ritodrine group (p 0.05). There was no significant difference between the atosiban and ritodrine groups in the average gestational age at birth (p 0.05). Both the perinatal mortality rate and the prevalence of neonatal asphyxia were significantly lower in the atosiban group than in the ritodrine group (p 0.05). CONCLUSIONS: Administration of atosiban has a comparatively better effect than that of ritodrine on pregnant women who underwent ART and is safe and effective at preventing immediate preterm birth. Atosiban is significantly better than ritodrine at reducing the rates of perinatal mortality and neonatal pneumonia, and the perinatal outcomes for those who began to use atosiban at a gestational age of fewer than 28 weeks were even better.