title: A rare type of alternating bundle branch block in a patient with cardiac sarcoidosis--a case report.
abstract: The authors report a rare type of alternating bundle branch block observed in a patient with cardiac sarcoidosis. Not only alternation of complete right and left bundle branch block but also narrow QRS complexes were observed on electrocardiogram. The mechanism of these unusual findings is briefly discussed.
authors.affiliation: Molecular Genetics of Cardiovascular Disorders, Division of Cardiovascular Medicine, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan. kontetsu@im2.m.kanazawa-u.acjp
authors.forename: Tetsuo
authors.initials: T
authors.lastname: Konno
authors.forename: Masami
authors.initials: M
authors.lastname: Shimizu
authors.forename: Hidekazu
authors.initials: H
authors.lastname: Ino
authors.forename: Tsutomu
authors.initials: T
authors.lastname: Araki
authors.forename: Masato
authors.initials: M
authors.lastname: Yamaguchi
authors.forename: Masaru
authors.initials: M
authors.lastname: Inoue
authors.forename: Yohei
authors.initials: Y
authors.lastname: Tofuku
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Mabuchi
mesh_terms: D000328:Adult; D002037:Bundle-Branch Block / Q000175:diagnosis / Q000209:etiology* / Q000628:therapy; D009202:Cardiomyopathies / Q000150:complications* / Q000175:diagnosis; D003937:Diagnosis, Differential; D003952:Diagnostic Imaging; D004562:Electrocardiography; D006327:Heart Block / Q000175:diagnosis / Q000209:etiology / Q000628:therapy; D006801:Humans; D017379:Hypertrophy, Left Ventricular / Q000150:complications / Q000175:diagnosis / Q000628:therapy; D008297:Male; D010138:Pacemaker, Artificial; D012507:Sarcoidosis / Q000150:complications* / Q000175:diagnosis; D017565:Sarcoidosis, Pulmonary / Q000150:complications* / Q000175:diagnosis; D013575:Syncope / Q000209:etiology; D018487:Ventricular Dysfunction, Left / Q000150:complications / Q000175:diagnosis / Q000628:therapy