Early repolarization: how could be misinterpreted as an acute coronary ischemia
V. Zavadilová 1; J. Šimíček 1,2
Ústav fyziologie a patofyziologie, Zdravotně sociální fakulta
Ostravské univerzity v Ostravě
Přednosta: Prof. MUDr. Zdeněk Jirák, CSc.
1; Interní oddělení, Vítkovická nemocnice a. s., Ostrava
Primář: MUDr. Miroslav Homza
Prakt. Lék. 2006; 86(10): 594-595
Early repolarization (ER) represents a normal ECG variant of persistent ST segment elevation. ER has elevated, upward and concave ST segments, notched R and tall, peaked T. It can be misinterpreted as changes consistent with acute coronary ischemia and lead to the potentially harmful invasive procedures. In group of 576 healthy subjects (356 men, 220 women) aged 15–55 years, ER was ascertained in 40 % probands, more in men (m: w = 6:1). ER occurred frequently in younger, slim and fit subjects and people engaged in sports, in physically active blood donors in higher age categories. ECG signs of ER resolve with maximal exercise testing. In doubt, a use of echocardiography to refuse or concern regional wall abnormalities is recommended. Two ECG of patients from cardiologic ambulance are presented. 48 years old marathon runner with asymptomatic right bundle branch block and ST segment elevation has normal outcome of coronarography. 51 years old man with acute coronary ischemia and critical right coronary artery stenosis was subjected to acute percutaneous coronary intervention with stenting, and ECG changes of ST elevation immediately resolved.
ST segment elevation, early repolarization, occurrence in healthy persons, acute coronary ischemia
General practitioner for children and adolescents
General practitioner for adults