North Staffordshire/Wigan assisted delivery trial.
In a trial conducted at the North Staffordshire and Billinge Maternity Hospitals (NSMH and BMH) a total of 264 women who required an assisted delivery in the second stage of labour were randomly assigned to be delivered either by Kobayashi silicone cup ventouse or by forceps. A larger proportion (90%) of those assigned to the forceps group were actually delivered by the allocated instrument compared to those in the silicone cup group (73%). However, there was a significantly higher rate of maternal morbidity in terms of perineal trauma and discomfort in the forceps group. No differences in neonatal morbidity were detected.
Johanson
R
R
North Staffordshire Maternity Hospital, Harpfields, Stoke-on-Trent.
Pusey
J
J
Livera
N
N
Jones
P
P
D000328:Adult; D005113:Extraction, Obstetrical / Q000009:adverse effects / Q000295:instrumentation; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007748:Labor Stage, Second; D015337:Multicenter Studies as Topic; D007744:Obstetric Labor Complications / Q000628:therapy*; D009772:Obstetrical Forceps / Q000009:adverse effects; D010502:Perineum / Q000293:injuries; D011247:Pregnancy; D011256:Pregnancy Outcome; D011312:Pressure; D011897:Random Allocation; D013997:Time Factors; D014620:Vacuum Extraction, Obstetrical / Q000009:adverse effects / Q000295:instrumentation