Predicting self-terminating ventricular fibrillations in an isolated heart

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题名:	Predicting self-terminating ventricular fibrillations in an isolated heart
作者:	黎璧賢;Le, Duy-Manh;Dvornikov, Alexey V.;Lai, Pik-Yin;Chan, C. K.
贡献者:	理學院物理學系
关键词:	05.10.-a;82.39.Rt;87.19.Hh
日期:	2013-11-01
上传时间:	2026-04-23 12:40:47 (UTC+8)
出版者:	EDP Sciences, IOP Publishing and Societ� Italiana di Fisica
摘要:	摘要： Ventricular fibrillations (VFs) in isolated hearts induced by fast pacing are studied in a Langendorff preparation by measuring the electrical signals from the right atrium and the ventricle . We find that when there is a strong component of Vv detected in Va during VF, the induced VFs are usually not self-terminating. Criteria for the prediction of self-terminating VFs are developed based on the analysis of Vv and Va by the cross-wavelet power spectrum and cross-Fourier power spectrum methods. The success rate of our prediction criteria is about 80-90 %. Our findings suggest that a heart under VF can recover its sinus rhythm only when the sino-atrial node of the heart is not under strong influence of the VF from its ventricle. 其他題名： EPL 出版者： EDP Sciences, IOP Publishing and Società Italiana di Fisica 出版日期： 2013-11 出處： Europhysics letters, 2013-11, Vol.104 (4), p.48002 資源來源： Institute of Physics Journals 版權： Copyright © EPLA, 2013 識別號： ISSN: 0295-5075 識別號： EISSN: 1286-4854 識別號： DOI: 10.1209/0295-5075/104/48002 識別號： CODEN: EULEEJ
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