title: Palpitations in a 64-year-old man.
abstract: A 64-year-old man presented with several weeks of intermittent irregular palpitations. He had no prior history of cardiac disease, hypertension or syncope. A 12-lead ECG revealed sinus rhythm with premature atrial and ventricular contractions and high QRS voltages consistent with LV-hypertrophy. Cardiac MR revealed asymmetrical septal hypertrophy and marked mid-myocardial hyperenhancement of the interventricular septum.
authors.forename: Michael A
authors.initials: MA
authors.lastname: Bauml
authors.forename: Jaehoon
authors.initials: J
authors.lastname: Chung
authors.forename: John V
authors.initials: JV
authors.lastname: Groth
authors.forename: Afshin
authors.initials: A
authors.lastname: Farzaneh-Far
mesh_terms: D000686:Amyloidosis / Q000150:complications* / Q000175:diagnosis; D018880:Atrial Premature Complexes / Q000209:etiology*; D002312:Cardiomyopathy, Hypertrophic / Q000175:diagnosis / Q000209:etiology; D004452:Echocardiography; D004562:Electrocardiography; D006331:Heart Diseases / Q000150:complications* / Q000175:diagnosis; D006801:Humans; D017379:Hypertrophy, Left Ventricular / Q000150:complications* / Q000175:diagnosis; D019028:Magnetic Resonance Imaging, Cine; D008297:Male; D008875:Middle Aged; D009206:Myocardium / Q000473:pathology; D018879:Ventricular Premature Complexes / Q000209:etiology*