Variation of force applied during external cephalic version with different patients' characteristic and outcome of version

Acta Obstetricia Et Gynecologica Scandinavica
Tak Yeung LeungTze Kin Lau

Abstract

To compare the degree of force applied during external cephalic version, between different patients' characteristic and outcomes of version. It is a prospective observational study in a cohort of patients undergoing external cephalic version at or above 36 weeks of gestation. During external cephalic version, the operator wore a pair of pressure-sensing gloves which had ultra-thin piezo-resistive pressure sensors positioned on the palmer surface. Readings from each of the sensors were recorded in real time throughout each version attempt and analyzed by a computer program. The pressure exerted on individual sensors over time, the pressure-time integral (PTI; mmHg s), was calculated for each sensor from the start to the end of each version attempted. The degree of force applied for each attempt (PTI-A) was represented by the sum of pressure-time integrals across all sensors. PTI-A was analyzed in relation to different patients' characteristics and outcome of version. Ninety-two patients were recruited, 73% of whom had a successful external cephalic version. The median PTI-A of the successful attempt in women who completed version after 1 and 2 attempts were 17,180 and 17,736 mmHg s, respectively. They were significantly lower th...Continue Reading

Citations

Nov 3, 2011·The Journal of Maternal-fetal & Neonatal Medicine : the Official Journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians·Stephen Sik Hung SuenTak Yeung Leung
Feb 3, 2016·Acta Obstetricia Et Gynecologica Scandinavica·Jorge BurgosJuan Carlos Melchor
Feb 20, 2010·Obstetrics and Gynecology·Tak Yeung LeungTony Kwok Hung Chung
Aug 9, 2013·Journal of Perinatal Medicine·Jorge BurgosJuan Carlos Melchor
Apr 4, 2012·The Journal of Maternal-fetal & Neonatal Medicine : the Official Journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians·Viola Kit Tong LeungTak Yeung Leung

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