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External Uterine Contractions Signal Analysis

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dc.contributor.authorGonçalves, H
dc.contributor.authorPinto, Paula
dc.contributor.authorAyres-de-Campos, D
dc.contributor.authorBernardes, João
dc.date.accessioned2019-07-08T14:40:29Z
dc.date.available2019-07-08T14:40:29Z
dc.date.issued2014
dc.description.abstractLabor dystocia is a major cause of operative delivery, which is associated with ncreased risks for both mother and fetus. We assessed linear and non-linear dynamics of external uterine contraction signals, in relation to labor progression and dystocia. Linear time domain, spectral and entropy methods were used to analyze external uterine contraction recordings obtained during the last two hours of labor, in 28 cases with normal and 27 cases with operative deliveries (forceps, vacuum or caesarean). Progression of labor was associated with a statistically significant increase in most linear time domain and spectral indices, both in normal and operative deliveries, whereas most entropy indices increased in normal deliveries, but did not change in operative deliveries. On the other hand, when compared with normal births, operative deliveries were associated with significantly increased entropy indices before the last hour of labor and significantly decreased (a probably associated) sympatho-vagal balance in the last hour of labor. Linear and non-linear analysis of external uterine contraction recordings may provide useful physiopathological and clinical information on the progression of labor and the diagnosis of dystocia.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationhttps://link.springer.com/chapter/10.1007/978-3-319-00846-2_137pt_PT
dc.identifier.doiDOI: 10.1007/978-3-319-00846-2_137,pt_PT
dc.identifier.isbn978-3-319-00845-5
dc.identifier.urihttp://hdl.handle.net/10400.26/29163
dc.language.isoengpt_PT
dc.publisherSpringer International Publishing Switzerlandpt_PT
dc.subjectDystociapt_PT
dc.subjectExternal uterine contractionspt_PT
dc.subjectCardiotocographypt_PT
dc.subjectSpectral analysispt_PT
dc.subjectentropsypt_PT
dc.subjectPortugalpt_PT
dc.titleExternal Uterine Contractions Signal Analysispt_PT
dc.typebook part
dspace.entity.typePublication
oaire.citation.endPage556pt_PT
oaire.citation.startPage555pt_PT
person.familyNamePinto
person.familyNameBernardes
person.givenNamePaula
person.givenNameJoão
person.identifier.ciencia-id8A12-C8C7-0F07
person.identifier.orcid0000-0002-0427-5621
rcaap.rightsopenAccesspt_PT
rcaap.typebookPartpt_PT
relation.isAuthorOfPublication65a12a2a-6ae8-404a-8732-fb1cc3470ada
relation.isAuthorOfPublicatione8513f47-abf1-4b07-a746-5754acbb19d3
relation.isAuthorOfPublication.latestForDiscovery65a12a2a-6ae8-404a-8732-fb1cc3470ada

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