Cardiology Unit, Department of Medical and Surgical Specialties, Radiological Sciences and Public Health University, Cardiothoracic Department, Spedali Civili of Brescia, Piazzale Spedali Civili 1, 25123, Brescia, Italy.
Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Viale M. Bracci, 16, 53100 Siena, Italy.
Eur J Prev Cardiol. 2022 May 27;29(8):1177-1187. doi: 10.1093/eurjpc/zwaa027.
The interpretation of 12-lead resting electrocardiogram (ECG) in patients with a definitive diagnosis or with the suspicion of a cardiomyopathy represents a cornerstone for the diagnostic work up and management of patients. Although low electrocardiographic QRS voltages (LQRSV) detected by 12-lead resting ECG have historically been acknowledged by physicians, in view of recent evidence on the demonstration of myocardial scar by cardiac magnetic resonance and its relevance as a cause of sudden cardiac death even in young individuals, a new interest has been raised about the utility of LQRSV in the clinical practice. Beyond their diagnostic value, LQRSV have also demonstrated a prognostic role in different cardiomyopathies. The present review summarizes the diagnostic and prognostic value of LQRSV in cardiomyopathies, reporting the new evidence, primarily based on advanced imaging studies, supporting the clinical utility of this parameter.
对于已明确诊断或疑似心肌病的患者，12 导联静息心电图（ECG）的解读是诊断和管理患者的基石。尽管 12 导联静息 ECG 检测到的低心电图 QRS 波电压（LQRSV）一直以来都受到医生的重视，但鉴于心脏磁共振显示心肌瘢痕的最新证据及其作为导致年轻人猝死的原因的相关性，人们对 LQRSV 在临床实践中的应用产生了新的兴趣。除了诊断价值外，LQRSV 在不同心肌病中的预后作用也得到了证实。本综述总结了 LQRSV 在心肌病中的诊断和预后价值，报告了新的证据，这些证据主要基于先进的影像学研究，支持了该参数的临床应用。
