title: [Transitory left deviation in the electrical axis of QRS during an exercise test as a manifestation of a severe proximal lesion of the descending anterior artery].
abstract: The case of a patient in whom transient left axis deviation occurred during a treadmill exercise test is reported. Coronary angiography showed a 90% obstruction of the proximal left anterior descending artery. After a successful coronary angioplasty and stent implantation, a control exercise test was performed without a recurrence of angina or transient intraventricular conduction disturbance, reflecting the ischaemic nature of this abnormality.
authors.affiliation: Servicio de Cardiología, Hospital General Universitario, Valencia.
authors.forename: E
authors.initials: E
authors.lastname: Esteban Esteban
authors.forename: F
authors.initials: F
authors.lastname: Ridocci Soriano
authors.forename: J V
authors.initials: JV
authors.lastname: Vilar Herrero
authors.forename: A
authors.initials: A
authors.lastname: Quesada Dorador
authors.forename: J A
authors.initials: JA
authors.lastname: Rodríguez Hernández
authors.forename: E
authors.initials: E
authors.lastname: Peris Domingo
authors.forename: T
authors.initials: T
authors.lastname: Castelló Viguer
authors.forename: J A
authors.initials: JA
authors.lastname: Velasco Rami
mesh_terms: D000328:Adult; D015906:Angioplasty, Balloon, Coronary; D003327:Coronary Disease / Q000175:diagnosis* / Q000503:physiopathology / Q000601:surgery; D004562:Electrocardiography; D005080:Exercise Test; D006801:Humans; D008297:Male