Lim F T, Holm J P, Schuitemaker N W, Jansen F H, Hermans J
Department of Obstetrics and Gynaecology, Leyenburg Teaching Hospital, The Hague, The Netherlands.
Br J Obstet Gynaecol. 1997 Jan;104(1):33-6. doi: 10.1111/j.1471-0528.1997.tb10645.x.
To compare a one-step (rapid) application of negative pressure (vacuum) with conventional stepwise application for ventouse extraction following a prolonged second stage of labour.
Randomised controlled study.
Teaching Hospital.
Forty-seven women were randomised to the rapid vacuum group and 47 to the stepwise group.
Duration of ventouse procedure, effectiveness of methods of application, morbidity of mother and infant.
There was no significant difference in frequency of detachment of the cup after rapid or stepwise application of vacuum. A reduction in mean duration of the ventouse procedure of 6 min was realised without significant difference in maternal or neonatal morbidity.
Rapid application of vacuum significantly reduces the duration of a ventouse extraction procedure without compromise to efficiency and safety.
比较在第二产程延长后，负压吸引器助产时一步法（快速）应用负压（真空）与传统逐步应用负压的效果。
随机对照研究。
教学医院。
47名妇女被随机分配至快速真空组，47名被分配至逐步应用组。
负压吸引器助产程序的持续时间、应用方法的有效性、母婴发病率。
快速或逐步应用真空后，吸盘脱落频率无显著差异。负压吸引器助产程序的平均持续时间缩短了6分钟，且母婴发病率无显著差异。
快速应用真空可显著缩短负压吸引器助产程序的持续时间，且不影响效率和安全性。
