title: Transient Q waves followed by left anterior fascicular block during exercise.
abstract: A 45 year old white man developed transient abnormal Q waves and ST segment elevation preceding left anterior fascicular block during exercise stress testing. The simultaneous disappearance of Q waves and fascicular block suggested that the abnormal Q waves were determined by an early septal conduction defect.
mesh_terms: D002037:Bundle-Branch Block / Q000209:etiology / Q000503:physiopathology*; D003327:Coronary Disease / Q000150:complications / Q000503:physiopathology*; D004452:Echocardiography; D004562:Electrocardiography; D006801:Humans; D008297:Male; D008875:Middle Aged; D005082:Physical Exertion