ArticleJournal of arrhythmia2020
Association of QT dispersion with mortality and arrhythmic events-A meta-analysis of observational studies.
Article in Journal of arrhythmia, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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Who cites it
22 citing papers in PubMed.
- Electrocardiographic dispersion parameters as markers of early cardiac involvement in children with β-thalassemia major.European journal of pediatrics · 2026Article
- High incidence of post-discharge cardiovascular mortality after COVID-19 hospitalization: a data-linkage study in Southern Iran.BMC cardiovascular disorders · 2026Article
- Risk stratification for sudden cardiac death in nonischemic dilated cardiomyopathy: a moving target?Frontiers in cardiovascular medicine · 2026Review
- Treating hearts and minds: adverse cardiovascular effects of psychiatric medications.Therapeutic advances in drug safety · 2026Review
- Cardiac Manifestations in Behçet's Syndrome.Current rheumatology reports · 2025Review
- Evaluation of Arrhythmia Risk in Children with Type 1 Diabetes MellitusJournal of clinical research in pediatric endocrinology · 2025Article
- Evaluation of electrocardiographic alterations before and after bariatric surgery.Global cardiology science & practice · 2025Article
- QTc Interval Dispersion in Pediatric Epilepsy: A Case-Control Study From Iran.Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc · 2025Article
- Papillary Muscles of the Left Ventricle: Integrating Electrical and Mechanical Dynamics.Journal of cardiovascular development and disease · 2024Review
- Role of physiological ischemia training in suppressing ventricular remodeling and ventricular arrhythmia in patients after myocardial infarction: a randomized controlled trial.American journal of translational research · 2024Article
- Electrocardiographic characteristics of bladder cancer patients receiving preoperative chemotherapy combined with immunotherapy.Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc · 2024Article
- Sport-related differences in QT dispersion and echocardiographic parameters in male athletes.Scientific reports · 2023Article
- Effect of reperfusion strategy on QT dispersion in patients with acute myocardial infarction: Impact on in-hospital arrhythmia.World journal of cardiology · 2023Article
- Cardiac Complications Associated with Eating Disorders in Children: A Multicenter Retrospective Study.Pediatric gastroenterology, hepatology & nutrition · 2022Article
- Comparison of QT dispersion before and after PDA device closure in pediatrics.Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc · 2022Article
- Evaluation of ECG Repolarization Parameters in a Worker Cohort Working the Night Shift.Journal of the Saudi Heart Association · 2022Article
- Evaluation of the relationship between the level of addiction and exhaled carbon monoxide levels with QT dispersion in smokers.Tobacco induced diseases · 2021Article
- Correlation Between QTc Prolongation and Obstructive Sleep Apnea in Patients with Type 2 Diabetes Mellitus.Medical science monitor : international medical journal of experimental and clinical research · 2020Article
- ECG Changes in Melanoma Patients Undergoing Cancer Therapy-Data From the ECoR Registry.Journal of clinical medicine · 2020Article
- Association of QT dispersion with mortality and arrhythmic events-A meta-analysis of observational studies.Journal of arrhythmia · 2020Article
Corrections and comments
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Authors and funding
16 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe 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.
methodsWe 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.
resultsIn 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 an arrhythmic event compared to arrhythmic event-free patients while a nonsignificant difference was found in QTd in patients who died from any cause compared to survivors. Similarly, in HF patients, the QTd was significantly greater in patients with an arrhythmic event while a nonsignificant difference was found regarding all-cause mortality and SCD outcomes.
conclusionsQTd has a prognostic role for stratifying myocardial infarction or HF patients who are at higher risk of arrhythmic events. However, no prognostic role was found regarding all-cause mortality or SCD in this patient population.
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