PMID: 9166316May 1, 1997Paper

A randomized trial of two vacuum extraction techniques

Obstetrics and Gynecology
J A BofillJ C Morrison

Abstract

To determine whether two techniques of vacuum extraction delivery-continuous vacuum and intermittent vacuum-have different effects on maternal-fetal outcomes. Patients to be delivered by vacuum extraction were randomized to receive continuous or intermittent vacuum. All deliveries were performed using the M-cup. In the continuous group, the level of vacuum was brought to 600 mmHg between contractions and was maintained at that level until delivery of the infant. Active efforts were made to prevent fetal loss-of-station between contractions by maintaining traction. In the intermittent group, the level of vacuum was decreased to 100 mmHg between contractions and no effort was made to prevent fetal loss-of-station. A total of 322 patients were randomized: 164 in the continuous arm and 158 in the intermittent group. The continuous method did not effect delivery faster (continuous 167 +/- 175 seconds versus intermittent 167 +/- 150 seconds; P = .97), nor did it lead to a reduction in method failures (continuous 12, intermittent nine; P = .72). The intermittent method did not appear to offer any benefit to the neonate regarding cephalhematoma formation (continuous 20, intermittent 17; P = .686) or any other measure of neonatal outcom...Continue Reading

References

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Citations

Mar 13, 2001·The Journal of Maternal-fetal Medicine·M G RossM A El-Haddad
Dec 29, 2000·Current Opinion in Obstetrics & Gynecology·J P O'GradyS S Patel
Nov 17, 2001·Obstetrical & Gynecological Survey·P Miksovsky, W J Watson
Sep 30, 2003·Obstetrical & Gynecological Survey·Dhiraj Uchil, Sabaratnam Arulkumaran
Jul 15, 2009·Journal de gynécologie, obstétrique et biologie de la reproduction·D RiethmullerJ-P Schaal
Jul 15, 2009·Journal de gynécologie, obstétrique et biologie de la reproduction·O Baud
Dec 17, 2008·Women's Health·Katherine R Goetzinger, George A Macones
Aug 7, 2009·BJOG : an International Journal of Obstetrics and Gynaecology·M JonssonU Hanson
Feb 28, 2002·Best Practice & Research. Clinical Obstetrics & Gynaecology·Aldo Vacca
Aug 16, 2016·European Journal of Obstetrics, Gynecology, and Reproductive Biology·Andrea Dall'AstaTiziana Frusca
Dec 1, 2017·Obstetrics & Gynecology Science·Jihan Jeon, Sunghun Na
Nov 12, 2010·The Cochrane Database of Systematic Reviews·Fidelma O'MahonyVijay Menon
Oct 22, 2015·Obstetrics and Gynecology·UNKNOWN Committee on Practice Bulletins—Obstetrics
Jan 12, 2020·Journal of Perinatal Medicine·Ioannis TsakiridisThemistoklis Dagklis
Sep 25, 2021·The Cochrane Database of Systematic Reviews·Ganga L VermaFidelma O'Mahony

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