title: Syncope due to paroxysmal complete atrioventricular block in a patient with aortic valve stenosis.
abstract: A 66-year-old man was admitted due to repeated syncope, and the electrocardiogram showed complete atrioventricular block (CAVB). He had moderate aortic valve stenosis (AS) with a severely calcified valve. This case indicates that if calcification spreads into the cardiac conduction system, it may cause CAVB. Although CAVB is not typically considered a main cause of syncope in AS patients, it should nevertheless be considered in the differential diagnosis.
authors.affiliation: Department of Cardiology, Juntendo University Graduate School of Medicine, Juntendo Tokyo Koto Geriatric Medical Center, Japan.
authors.forename: Yasuhito
authors.initials: Y
authors.lastname: Sekimoto
authors.forename: Yuji
authors.initials: Y
authors.lastname: Nishizaki
authors.forename: Masahiro
authors.initials: M
authors.lastname: Sesoko
authors.forename: Eiryu
authors.initials: E
authors.lastname: Sai
authors.forename: Haruyo
authors.initials: H
authors.lastname: Yamashita
authors.forename: Shinichiro
authors.initials: S
authors.lastname: Yamagami
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Daida
mesh_terms: D000368:Aged; D001024:Aortic Valve Stenosis / Q000150:complications*; D054537:Atrioventricular Block / Q000150:complications*; D002114:Calcinosis / Q000150:complications*; D006801:Humans; D008297:Male; D013575:Syncope / Q000209:etiology*