Smis B, Thiery M
Eur J Obstet Gynecol Reprod Biol. 1980 Dec;11(3):163-71. doi: 10.1016/0028-2243(80)90065-9.
This prospective study concerned the immediate possible effects of low amniotomy on the fetal heart rate pattern of 32 normal term subjects. Artificial membrane rupture was performed early in labour in 16 gravidas and to induce labor in the others. In only 1 fetus was no specific alteration of the heart rate pattern recorded. The type and incidence of fetal heart rate pattern alterations observed during and within 1 h after low amniotomy were comparable in laboring and induced gravidas. The most frequently observed patterns were short-lived FHR acceleration and increased band-width. Short-lived bradycardia was recorded in only 4 patients after amniotomy. The majority of the alterations observed were not indicative of fetal distress as a direct result of artificial membrane rupture.
这项前瞻性研究关注低位羊膜穿刺术对32名足月正常孕妇胎儿心率模式的即时可能影响。对16名孕妇在分娩早期进行人工破膜，对其他孕妇则用于引产。仅1例胎儿未记录到心率模式的特定改变。在低位羊膜穿刺术期间及术后1小时内观察到的胎儿心率模式改变的类型和发生率，在自然分娩和引产的孕妇中相当。最常观察到的模式是短暂的胎心率加速和带宽增加。羊膜穿刺术后仅4例患者记录到短暂性心动过缓。观察到的大多数改变并非人工破膜直接导致胎儿窘迫的指征。
