Pharmacological management of an impending placental insufficiency.

By means of drug administration a further decrease of the placental circulation in premature sonographic maturity of the placenta could be prevented via influencing the TXA2/PGI2 balance. Treatment of premature sonographic placental maturity with 50 mg acetylsalicylic acid (ASA) per day and three times daily 100 mg Rocornal, respectively, resulted in a significant increase of the birth weights. In a second series of experiments, three groups were treated with 50 mg/day ASA or 250 mg ASA/once per week and three times/day 100 mg Rocornal, respectively, from the 18th or 20th week of gestation to the 35th week. Subsequently, they were compared to a group of untreated controls. The birth weights of all treated groups were statistically significantly higher. The underlying mechanism is suggested to be an improved microcirculation.