OBJECTIVE: The purpose of this study was to investigate the spatiotemporal patterns of uterine electrical activity in normal and arrested labors. STUDY DESIGN: From a database of electrohysterograms, 12 subjects who underwent cesarean delivery for active-phase arrest were each matched with 2 vaginally delivered controls. Using 30-minute segments of the electrohysterogram during the arrest, or the same dilation in controls, the center of uterine electrical activity was derived. The vertical motion of this center of uterine activity was determined for each contraction and the frequencies of movement patterns analyzed. RESULTS: Predominantly upward movement of the center of uterine activity (longer and/or stronger contraction at the fundus) was more common with normal dilation (P = .003). Receiver operating characteristic curve analysis gave an area under the curve of 0.91 for predicting outcome (vaginal vs cesarean delivery). CONCLUSION: There is a significant correlation between upward movement of the center of uterine activity (fundal dominance) and current labor progress.
OBJECTIVE: The purpose of this study was to investigate the spatiotemporal patterns of uterine electrical activity in normal and arrested labors. STUDY DESIGN: From a database of electrohysterograms, 12 subjects who underwent cesarean delivery for active-phase arrest were each matched with 2 vaginally delivered controls. Using 30-minute segments of the electrohysterogram during the arrest, or the same dilation in controls, the center of uterine electrical activity was derived. The vertical motion of this center of uterine activity was determined for each contraction and the frequencies of movement patterns analyzed. RESULTS: Predominantly upward movement of the center of uterine activity (longer and/or stronger contraction at the fundus) was more common with normal dilation (P = .003). Receiver operating characteristic curve analysis gave an area under the curve of 0.91 for predicting outcome (vaginal vs cesarean delivery). CONCLUSION: There is a significant correlation between upward movement of the center of uterine activity (fundal dominance) and current labor progress.
Authors: Miha Lucovnik; William L Maner; Linda R Chambliss; Richard Blumrick; James Balducci; Ziva Novak-Antolic; Robert E Garfield Journal: Am J Obstet Gynecol Date: 2010-12-08 Impact factor: 8.661
Authors: Hinke de Lau; Chiara Rabotti; Rianne Bijloo; Michael Johannes Rooijakkers; Massimo Mischi; S Guid Oei Journal: Comput Math Methods Med Date: 2013-12-29 Impact factor: 2.238
Authors: Lasse Lange; Anders Vaeggemose; Preben Kidmose; Eva Mikkelsen; Niels Uldbjerg; Peter Johansen Journal: PLoS One Date: 2014-01-21 Impact factor: 3.240