Uterine contractility in polyhydramnios and the effects of withdrawal of the excess of amniotic fluid

摘要: Abstract In 25 cases of polyhydramnios the contractility uterus has been studied by recording amniotic fluid pressure. The value tonus and intensity contractions in depends on two main factors: 1. overdistention raises reduces contractions. 2. many increases prematurely reaches labor values too early pregnancy. This is cause high incidence premature polyhydramnios. During polyhydramnios, uterine fibers are able to contract as strongly normal cases. Yet, due uterus, reduced their progresses slowly. prolonged this condition. Correction withdrawal excess will make accelerate progress labor. abdominal puncture with induce low contractility, pregnancy probably continue after fluid. Hypotheses presented explain these observations.