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Created on : 20 Apr 2004
Modified on : 02 Dec 2007

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Bibliographical entry (without author) :

A randomised prospective study comparing the new vacuum extractor policy with forceps delivery. Br J Obstet Gynaecol. 1993 Jun;100(6):524-30.

Author(s) :

Johanson RB, Rice C, Doyle M, Arthur J, Anyanwu L, Ibrahim J, Warwick A, Redman CW, O’Brien PM.

Year of publication :

1993

URL(s) :

http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=…

Résumé (français)  :

Abstract (English)  :

OBJECTIVE: To compare assisted vaginal delivery by forceps with delivery by vacuum extractor, where a new vacuum extractor policy was employed which dictated the cup to be used in specific situations. DESIGN: Multicentre randomised controlled trial. SETTING: Four district general hospitals in the West Midlands. SUBJECTS: Six hundred-seven women requiring assisted vaginal delivery, of whom 296 were allocated to vacuum extractor delivery and 311 to forceps. MAIN OUTCOME MEASURES: Delivery success rate, maternal perineal and vaginal injuries, maternal anaesthetic requirements, neonatal scalp and facial injuries. RESULTS: Of the vacuum extractor group, 85% were delivered by the allocated instrument compared to 90% in the forceps group (odds ratio (OR) 0.64; 95% confidence intervals (CI) 0.4-1.04). However, more women in the vacuum extractor group were delivered vaginally (98%) than in the forceps group (96%). There were significantly fewer women with anal sphincter damage or upper vaginal extensions in the vacuum extractor group (11% vs 17%, OR 0.6; 95% CI, 0.38-0.97). There were significantly fewer women in the vacuum extractor group requiring epidural or spinal anaesthetics (25.4% vs 32.7%, OR 0.69; 95% CI 0.49-0.99) or general anaesthetics (1% vs 4%, OR 0.17; 95% CI 0.04-0.76). Although there were significantly more babies in the vacuum extractor group with cephalhaematomata (9% vs 3%, OR 3.3; 95% CI 1.4-7.4) there were fewer babies in the vacuum extractor group with other facial injuries. There were three babies in the forceps group with unexplained neonatal convulsions. CONCLUSIONS: Assisted vaginal delivery using the new vacuum extractor policy is associated with significantly less maternal trauma than with forceps. Further studies are required to assess neonatal morbidity adequately.

Sumário (português)  :

Resumen (español)  :

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Argument (français) :

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Keywords :

➡ perineal/vaginal tears ; instrumental delivery ; forceps delivery ; vacuum extraction (ventouse) ; morbidity

Author of this record :

Cécile Loup — 20 Apr 2004