Comparison of first and second heart sounds after mechanical heart valve replacement

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dc.contributor.authorAltunkaya, Sabri
dc.contributor.authorKara, Sadik
dc.contributor.authorGormus, Niyazi
dc.contributor.authorHerdem, Saadetdin
dc.date.accessioned2020-03-26T18:41:20Z
dc.date.available2020-03-26T18:41:20Z
dc.date.issued2013
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractIn this article, the spectral features of first heart sounds (S1) and second heart sounds (S2), which comprise the mechanical heart valve sounds obtained after aortic valve replacement (AVR) and mitral valve replacement (MVR), are compared to find out the effect of mechanical heart valve replacement and recording area on S1 and S2. For this aim, the Welch method and the autoregressive (AR) method are applied on the S1 and S2 taken from 66 recordings of 8 patients with AVR and 98 recordings from 11 patients with MVR, thereby yielding power spectrum of the heart sounds. Three features relating to frequency of heart sounds and three features relating to energy of heart sounds are obtained. Results show that in comparison to natural heart valves, mechanical heart valves contain higher frequency components and energy, and energy and frequency components do not show common behaviour for either AVR or MVR depending on the recording areas. Aside from the frequency content and energy of the sound generated by mechanical heart valves being affected by the structure of the lungsthorax and the recording areas, the pressure across the valve incurred during AVR or MVR is a significant factor in determining the frequency and energy levels of the valve sound produced. Though studies on native heart sounds as a non-invasive diagnostic method has been done for many years, it is observed that studies on mechanical heart valves sounds are limited. The results of this paper will contribute to other studies on using a non-invasive method for assessing the mechanical heart valve sounds.en_US
dc.description.sponsorshipCoordinatorship of Selcuk University's Scientific Research ProjectsSelcuk Universityen_US
dc.description.sponsorshipThis work is supported by the Coordinatorship of Selcuk University's Scientific Research Projects.en_US
dc.identifier.doi10.1080/10255842.2011.623672en_US
dc.identifier.endpage380en_US
dc.identifier.issn1025-5842en_US
dc.identifier.issn1476-8259en_US
dc.identifier.issue4en_US
dc.identifier.pmid22263691en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage368en_US
dc.identifier.urihttps://dx.doi.org/10.1080/10255842.2011.623672
dc.identifier.urihttps://hdl.handle.net/20.500.12395/29314
dc.identifier.volume16en_US
dc.identifier.wosWOS:000317722400003en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherTAYLOR & FRANCIS LTDen_US
dc.relation.ispartofCOMPUTER METHODS IN BIOMECHANICS AND BIOMEDICAL ENGINEERINGen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectmechanical heart valve soundsen_US
dc.subjectspectral analysisen_US
dc.titleComparison of first and second heart sounds after mechanical heart valve replacementen_US
dc.typeArticleen_US

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