title: [Depression and elevation of the ST segment in the V4R lead during the stress test of a patient with a proximal lesion of the right coronary artery].
abstract: We report a patient with a proximal right coronary artery lesion in whom opposite shifts of ST segment in V4R lead were observed during and after exercise. ST-segment depression was provoked by exercise, while ST-segment elevation appeared in the recovery phase. We speculate that different degrees of myocardial ischemia (non-transmural vs transmural) may explain this apparently paradoxical response.
authors.affiliation: Servicio de Cardiología, Hospital Universitario Marqués de Valdecilla, Santander.
authors.forename: J A
authors.initials: JA
authors.lastname: Prieto Solís
authors.forename: B
authors.initials: B
authors.lastname: Ruiz Delgado
authors.forename: J M
authors.initials: JM
authors.lastname: San José Garagarza
mesh_terms: D000328:Adult; D017023:Coronary Angiography; D003327:Coronary Disease / Q000175:diagnosis*; D004562:Electrocardiography; D005080:Exercise Test; D006801:Humans; D008297:Male; D009203:Myocardial Infarction / Q000175:diagnosis