Complex ventricular premature beats detected by Holter monitoring as a predictor of sudden cardiac death in patients with cardiomyopathy

Ali, Ammar; Badran, Haitham; Elalfy, M

doi:10.1093/qjmed/hcy200.026

Cited by 1 publication

(1 citation statement)

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“…The VPC burden is one of the clinical indicators of decreased cardiac function in continuous ECG monitoring (34,35). It measures the percentage of ectopic beats in all heartbeats, and a higher VPC burden is associated with increased risks of cardiovascular mortality (36).…”

Section: Epidemiological and Clinical Reportsmentioning

confidence: 99%

Air Pollution and Cardiac Arrhythmias: From Epidemiological and Clinical Evidences to Cellular Electrophysiological Mechanisms

Zhang

Lü

Wei

et al. 2021

Front. Cardiovasc. Med.

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Cardiovascular disease is the leading cause of death worldwide and kills over 17 million people per year. In the recent decade, growing epidemiological evidence links air pollution and cardiac arrhythmias, suggesting a detrimental influence of air pollution on cardiac electrophysiological functionality. However, the proarrhythmic mechanisms underlying the air pollution-induced cardiac arrhythmias are not fully understood. The purpose of this work is to provide recent advances in air pollution-induced arrhythmias with a comprehensive review of the literature on the common air pollutants and arrhythmias. Six common air pollutants of widespread concern are discussed, namely particulate matter, carbon monoxide, hydrogen sulfide, sulfur dioxide, nitrogen dioxide, and ozone. The epidemiological and clinical reports in recent years are reviewed by pollutant type, and the recently identified mechanisms including both the general pathways and the direct influences of air pollutants on the cellular electrophysiology are summarized. Particularly, this review focuses on the impaired ion channel functionality underlying the air pollution-induced arrhythmias. Alterations of ionic currents directly by the air pollutants, as well as the alterations mediated by intracellular signaling or other more general pathways are reviewed in this work. Finally, areas for future research are suggested to address several remaining scientific questions.

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Section: Epidemiological and Clinical Reportsmentioning

confidence: 99%