title: Seizures and syncope due to complete atrioventricular block in a patient with acute myocarditis with a normal left ventricular systolic function.
abstract: A 43-year-old man was admitted to our hospital presenting with seizures and syncope. He had a history of a cold with a fever of 39°C occurring three days earlier. Electrocardiography (ECG) showed complete atrioventricular block (AV block) with a maximum pause of 32 seconds, for which temporary pacing was performed. Echocardiography showed mild hypertrophy of the left ventricle (LV) with a normal ejection fraction of 61%. Coronary angiography showed normal coronary arteries. Then, an endomyocardial biopsy was performed, the results of which indicated a diagnosis of acute myocarditis. After admission, the complete atrioventricular block disappeared together with normalization of the LV wall thickness.
authors.affiliation: Department of Cardiology, Sasebo Chuo Hospital, and Department of Cardiovascular Medicine, Nagasaki University Graduate School of Biomedical Sciences, Japan.
authors.forename: Ryohei
authors.initials: R
authors.lastname: Akashi
authors.forename: Yoshihisa
authors.initials: Y
authors.lastname: Kizaki
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Kawano
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Takahara
authors.forename: Kojiro
authors.initials: K
authors.lastname: Nakao
authors.forename: Nobuhisa
authors.initials: N
authors.lastname: Yonemitsu
authors.forename: Saburo
authors.initials: S
authors.lastname: Kusumoto
authors.forename: Koji
authors.initials: K
authors.lastname: Maemura
mesh_terms: D000208:Acute Disease; D000328:Adult; D054537:Atrioventricular Block / Q000150:complications* / Q000503:physiopathology / Q000628:therapy; D002304:Cardiac Pacing, Artificial; D004452:Echocardiography; D004562:Electrocardiography; D006801:Humans; D017379:Hypertrophy, Left Ventricular / Q000209:etiology; D008297:Male; D009205:Myocarditis / Q000150:complications* / Q000175:diagnosis / Q000503:physiopathology; D012640:Seizures / Q000209:etiology*; D013575:Syncope / Q000209:etiology*; D013599:Systole; D016277:Ventricular Function, Left