title: Electrocardiographic demonstration of intermittent left bundle branch block because of the "linking" phenomenon.
abstract: The authors describe a patient who showed intermittent left bundle branch block at a slow heart rate. The perpetuation of left bundle branch block is suggested because of rate dependent bundle branch block and trans-septal retrograde concealed penetration by the contralateral bundle as it is resolved by a premature ventricular extrasystole. This phenomenon is called "linking." This case report aims to present and emphasize this interesting phenomenon.
authors.affiliation: Department of Cardiology, School of Medicine, Trakya University, Edirne, Turkey. okanerdogan@yahoo.com
authors.forename: Okan
authors.initials: O
authors.lastname: Erdogan
authors.forename: Armagan
authors.initials: A
authors.lastname: Altun
mesh_terms: D002037:Bundle-Branch Block / Q000150:complications / Q000175:diagnosis* / Q000503:physiopathology; D003937:Diagnosis, Differential; D004452:Echocardiography; D004562:Electrocardiography; D005080:Exercise Test; D005260:Female; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D008875:Middle Aged; D014421:Turkey; D018487:Ventricular Dysfunction, Left / Q000150:complications / Q000175:diagnosis / Q000503:physiopathology