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Idiopathic ventricular fibrillation with fragmented QRS complex and J wave in resting electrocardiogram

OBJECTIVE: To describe the clinical characteristics of idiopathic ventricular fibrillation (IVF) with fragmented QRS complex (f-QRS) and J wave in resting electrocardiogram. METHODS: We reviewed data from 21 case subjects in our hospital who were resuscitated after cardiac arrest due to IVF and asse...

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Autores principales: Wang, Jing, Tang, Min, Mao, Ke-Xiu, Chu, Jian-Min, Hua, Wei, Jia, Yu-He, Zhao, Ying-Jie, Wei, Wei, Chen, Xu-Hua, Pu, Jie-Lin, Zhang, Shu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Science Press 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3418903/
https://www.ncbi.nlm.nih.gov/pubmed/22916060
http://dx.doi.org/10.3724/SP.J.1263.2011.12121
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author Wang, Jing
Tang, Min
Mao, Ke-Xiu
Chu, Jian-Min
Hua, Wei
Jia, Yu-He
Zhao, Ying-Jie
Wei, Wei
Chen, Xu-Hua
Pu, Jie-Lin
Zhang, Shu
author_facet Wang, Jing
Tang, Min
Mao, Ke-Xiu
Chu, Jian-Min
Hua, Wei
Jia, Yu-He
Zhao, Ying-Jie
Wei, Wei
Chen, Xu-Hua
Pu, Jie-Lin
Zhang, Shu
author_sort Wang, Jing
collection PubMed
description OBJECTIVE: To describe the clinical characteristics of idiopathic ventricular fibrillation (IVF) with fragmented QRS complex (f-QRS) and J wave in resting electrocardiogram. METHODS: We reviewed data from 21 case subjects in our hospital who were resuscitated after cardiac arrest due to IVF and assessed the prevalence of f-QRS and J wave in resting electrocardiogram (ECG). All the case subjects were classified among three groups based on the electrocardiographic morphology: group I, both f-QRS and J wave were observed (n = 6), group II, only J wave was observed (n = 9), group III, neither f-QRS nor J wave was observed (n = 6). Population characteristics, history of syncope or sudden cardiac arrest, incidence of ventricular fibrillation (VF), and circumstance of VF were evaluated among the three groups. RESULTS: The incidence of index events (syncope, survived cardiac arrest and VF episodes recorded in implantable cardioverter defibrillator (ICD) or pacemakers) was 13.4 ± 5.6 per-year in group I, 10.8 ± 3.9 per-year in group II, and 9.8 ± 4.2 per-year in group III. There were significant differences in incidences among the three groups, the most frequent index events were observed in group I. The hazard ratio for incidence was 3.2 (95%CI, 1.1–7.9; P = 0.01). The history and circumstance of the index events were different among the groups. In group I, all the index events occurred during sleep in early morning. In group II, four subjects suffered VF during strenuous physical activities or agitation state, two during sleep in early morning, three in usual activity. In group III, one subject suffered VF during sleep in early morning, one in agitation state, four in usual activity. CONCLUSIONS: This study suggests that the IVF patients with the combined appearance of f-QRS and J wave in the resting ECG suffer an increased risk of VF, this subgroup of IVF patients has a unique clinical feature.
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spelling pubmed-34189032012-08-22 Idiopathic ventricular fibrillation with fragmented QRS complex and J wave in resting electrocardiogram Wang, Jing Tang, Min Mao, Ke-Xiu Chu, Jian-Min Hua, Wei Jia, Yu-He Zhao, Ying-Jie Wei, Wei Chen, Xu-Hua Pu, Jie-Lin Zhang, Shu J Geriatr Cardiol Research Articles OBJECTIVE: To describe the clinical characteristics of idiopathic ventricular fibrillation (IVF) with fragmented QRS complex (f-QRS) and J wave in resting electrocardiogram. METHODS: We reviewed data from 21 case subjects in our hospital who were resuscitated after cardiac arrest due to IVF and assessed the prevalence of f-QRS and J wave in resting electrocardiogram (ECG). All the case subjects were classified among three groups based on the electrocardiographic morphology: group I, both f-QRS and J wave were observed (n = 6), group II, only J wave was observed (n = 9), group III, neither f-QRS nor J wave was observed (n = 6). Population characteristics, history of syncope or sudden cardiac arrest, incidence of ventricular fibrillation (VF), and circumstance of VF were evaluated among the three groups. RESULTS: The incidence of index events (syncope, survived cardiac arrest and VF episodes recorded in implantable cardioverter defibrillator (ICD) or pacemakers) was 13.4 ± 5.6 per-year in group I, 10.8 ± 3.9 per-year in group II, and 9.8 ± 4.2 per-year in group III. There were significant differences in incidences among the three groups, the most frequent index events were observed in group I. The hazard ratio for incidence was 3.2 (95%CI, 1.1–7.9; P = 0.01). The history and circumstance of the index events were different among the groups. In group I, all the index events occurred during sleep in early morning. In group II, four subjects suffered VF during strenuous physical activities or agitation state, two during sleep in early morning, three in usual activity. In group III, one subject suffered VF during sleep in early morning, one in agitation state, four in usual activity. CONCLUSIONS: This study suggests that the IVF patients with the combined appearance of f-QRS and J wave in the resting ECG suffer an increased risk of VF, this subgroup of IVF patients has a unique clinical feature. Science Press 2012-06 /pmc/articles/PMC3418903/ /pubmed/22916060 http://dx.doi.org/10.3724/SP.J.1263.2011.12121 Text en Institute of Geriatric Cardiology http://creativecommons.org/licenses/by-nc-sa/3.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License, which allows readers to alter, transform, or build upon the article and then distribute the resulting work under the same or similar license to this one. The work must be attributed back to the original author and commercial use is not permitted without specific permission.
spellingShingle Research Articles
Wang, Jing
Tang, Min
Mao, Ke-Xiu
Chu, Jian-Min
Hua, Wei
Jia, Yu-He
Zhao, Ying-Jie
Wei, Wei
Chen, Xu-Hua
Pu, Jie-Lin
Zhang, Shu
Idiopathic ventricular fibrillation with fragmented QRS complex and J wave in resting electrocardiogram
title Idiopathic ventricular fibrillation with fragmented QRS complex and J wave in resting electrocardiogram
title_full Idiopathic ventricular fibrillation with fragmented QRS complex and J wave in resting electrocardiogram
title_fullStr Idiopathic ventricular fibrillation with fragmented QRS complex and J wave in resting electrocardiogram
title_full_unstemmed Idiopathic ventricular fibrillation with fragmented QRS complex and J wave in resting electrocardiogram
title_short Idiopathic ventricular fibrillation with fragmented QRS complex and J wave in resting electrocardiogram
title_sort idiopathic ventricular fibrillation with fragmented qrs complex and j wave in resting electrocardiogram
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3418903/
https://www.ncbi.nlm.nih.gov/pubmed/22916060
http://dx.doi.org/10.3724/SP.J.1263.2011.12121
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