Narrowing filtered <scp>QRS</scp> duration on signal‐averaged electrocardiogram predicts outcomes in cardiac resynchronization therapy patients with nonischemic heart failure

Suzuki, Atsushi; Shiga, Tsuyoshi; Daigo, Yataro; Yagishita-Tagawa, Yoshimi; Arai, Kotaro; Iwanami, Yuji; Ejima, Koichiro; Ashihara, Kaoru; Shoda, Morio; Hagiwara, Nobuhisa

doi:10.1111/anec.12523

Cited by 2 publications

(1 citation statement)

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“…The identification of patients at increased risk for sudden cardiac death (SCD) and major arrhythmic events [ventricular fibrillation (VF) and ventricular tachycardia (VT)] is of outstanding clinical importance. Noninvasive tests (signal‐averaged electrocardiography, arrhythmic burden in Holter monitoring, echocardiography markers) have been used to identify patients at high risk for fatal cardiovascular events . QT dispersion (QTd) (difference between maximum and minimum QT interval) is an easy measured electrocardiographic marker which correlates significantly with the dispersion of action potential duration at 90% repolarization and recovery time .…”

Section: Introductionmentioning

confidence: 99%

Association of QT dispersion with mortality and arrhythmic events—A meta‐analysis of observational studies

Bazoukis

Yeung

et al. 2019

Journal of Arrhythmia

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Background:The risk stratification of coronary heart disease (CHD) and/or heart failure (HF) patients with easily measured electrocardiographic markers is of clinical importance. The aim of this meta-analysis is to indicate whether increased QT dispersion (QTd) is associated with fatal and nonfatal outcomes in patients with CHD and/or HF. Methods:We systematically searched MEDLINE and Cochrane databases without restrictions until August 15, 2018 using the keyword "QT dispersion". Studies including data on the association between QTd and all-cause mortality, sudden cardiac death (SCD) or arrhythmic events in patients with HF and/or CHD were classified as eligible. Results:In the analysis including patients with CHD and/or HF, we found that QTd did not differ significantly in patients with SCD compared to no SCD patients while QTd was significantly greater in the group of all-cause mortality patients and in patients who experienced a sustained ventricular arrhythmia. Subgroup analysis showed that in myocardial infarction studies, QTd was significantly higher in patients with

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Section: Introductionmentioning

confidence: 99%

Association of QT dispersion with mortality and arrhythmic events—A meta‐analysis of observational studies

Bazoukis

Yeung

et al. 2019

Journal of Arrhythmia

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Association of QRS narrowing with response to cardiac resynchronization therapy—a systematic review and meta-analysis of observational studies

et al. 2019

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Narrowing filtered QRS duration on signal‐averaged electrocardiogram predicts outcomes in cardiac resynchronization therapy patients with nonischemic heart failure

Abstract: Our results suggested that narrowing fQRS on SAECG after CRT implantation predicts LV reverse remodeling and long-term outcomes in nonischemic HF patients.

Cited by 2 publications

References 23 publications

Association of QT dispersion with mortality and arrhythmic events—A meta‐analysis of observational studies

Association of QT dispersion with mortality and arrhythmic events—A meta‐analysis of observational studies

Association of QRS narrowing with response to cardiac resynchronization therapy—a systematic review and meta-analysis of observational studies

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