AIMS: Low QRS voltages (peak to peak <0.5 mV) in limb leads (LQRSV) on the athlete's electrocardiogram (ECG) may reflect an underlying cardiomyopathy, mostly arrhythmogenic cardiomyopathy (ACM) or non-ischaemic left ventricular scar (NILVS). We studied the prevalence and clinical meaning of isolated LQRSV in a large cohort of competitive athletes. METHODS AND RESULTS: The index group included 2229 Italian competitive athletes [median age 18 years (16-25), 67% males, 97% Caucasian] without major ECG abnormalities at pre-participation screening. Three control groups included Black athletes (N = 1115), general population (N = 1115), and patients with ACM or NILVS (N = 58). Echocardiogram was performed in all athletes with isolated LQRSV and cardiac magnetic resonance (CMR) in those with ventricular arrhythmias or echocardiographic abnormalities. The isolated LQRSV pattern was found in 1.1% index athletes and was associated with increasing age (median age 28 vs. 18 years; P < 0.001), elite status (71% vs. 34%; P < 0.001), body surface area, and body mass index but not with sex, type of sport, and echocardiographic left ventricular mass. The prevalence of isolated LQRSV was 0.2% in Black athletes and 0.3% in young individuals from the general population. Cardiomyopathy patients had a significantly greater prevalence of isolated LQRSV (12%) than index athletes, Black athletes, and general population. Five index athletes with isolated LQSRV and exercise-induced ventricular arrhythmias underwent CMR showing biventricular ACM in 1 and idiopathic NILVS in 1. CONCLUSIONS: Unlike cardiomyopathy patients, the ECG pattern of isolated LQRSV was rarely observed in athletes. This ECG sign should prompt clinical work-up for exclusion of an underlying cardiomyopathy.
AIMS: Low QRS voltages (peak to peak <0.5 mV) in limb leads (LQRSV) on the athlete's electrocardiogram (ECG) may reflect an underlying cardiomyopathy, mostly arrhythmogenic cardiomyopathy (ACM) or non-ischaemic left ventricular scar (NILVS). We studied the prevalence and clinical meaning of isolated LQRSV in a large cohort of competitive athletes. METHODS AND RESULTS: The index group included 2229 Italian competitive athletes [median age 18 years (16-25), 67% males, 97% Caucasian] without major ECG abnormalities at pre-participation screening. Three control groups included Black athletes (N = 1115), general population (N = 1115), and patients with ACM or NILVS (N = 58). Echocardiogram was performed in all athletes with isolated LQRSV and cardiac magnetic resonance (CMR) in those with ventricular arrhythmias or echocardiographic abnormalities. The isolated LQRSV pattern was found in 1.1% index athletes and was associated with increasing age (median age 28 vs. 18 years; P < 0.001), elite status (71% vs. 34%; P < 0.001), body surface area, and body mass index but not with sex, type of sport, and echocardiographic left ventricular mass. The prevalence of isolated LQRSV was 0.2% in Black athletes and 0.3% in young individuals from the general population. Cardiomyopathy patients had a significantly greater prevalence of isolated LQRSV (12%) than index athletes, Black athletes, and general population. Five index athletes with isolated LQSRV and exercise-induced ventricular arrhythmias underwent CMR showing biventricular ACM in 1 and idiopathic NILVS in 1. CONCLUSIONS: Unlike cardiomyopathy patients, the ECG pattern of isolated LQRSV was rarely observed in athletes. This ECG sign should prompt clinical work-up for exclusion of an underlying cardiomyopathy.
Authors: Alessandro Biffi; Pietro Delise; Paolo Zeppilli; Franco Giada; Antonio Pelliccia; Maria Penco; Maurizio Casasco; Pierluigi Colonna; Antonello D'Andrea; Luigi D'Andrea; Giovanni Gazale; Giuseppe Inama; Antonio Spataro; Alessandro Villella; Paolo Marino; Salvatore Pirelli; Vincenzo Romano; Antonio Cristiano; Roberto Bettini; Gaetano Thiene; Francesco Furlanello; Domenico Corrado Journal: J Cardiovasc Med (Hagerstown) Date: 2013-07 Impact factor: 2.160
Authors: Aneil Malhotra; Harshil Dhutia; Gherardo Finocchiaro; Sabiha Gati; Ian Beasley; Paul Clift; Charlotte Cowie; Antoinette Kenny; Jamil Mayet; David Oxborough; Kiran Patel; Guido Pieles; Dhrubo Rakhit; David Ramsdale; Leonard Shapiro; John Somauroo; Graham Stuart; Amanda Varnava; John Walsh; Zaheer Yousef; Maite Tome; Michael Papadakis; Sanjay Sharma Journal: N Engl J Med Date: 2018-08-09 Impact factor: 91.245
Authors: Antonio Pelliccia; Fernando M Di Paolo; Filippo M Quattrini; Cristina Basso; Franco Culasso; Gloria Popoli; Rosanna De Luca; Antonio Spataro; Alessandro Biffi; Gaetano Thiene; Barry J Maron Journal: N Engl J Med Date: 2008-01-10 Impact factor: 91.245