title: Atrioventricular dissociation as a cause of syncope determined by head-up tilt test.
abstract: This report describes a patient with syncopal attacks in a sitting position on a reclining seat, in whom atrioventricular dissociation due to accelerated ventricular rhythm was determined to be the cause by recording of the electrocardiogram, blood pressure, and mitral and aortic Doppler flow during a 60 degree head-up tilt test.
authors.affiliation: Department of Internal Medicine, Nishida Hospital, Saiki city, Oita, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Kataoka
mesh_terms: D001021:Aortic Valve / Q000000981:diagnostic imaging / Q000503:physiopathology; D001145:Arrhythmias, Cardiac / Q000150:complications*; D001283:Atrioventricular Node / Q000503:physiopathology*; D001783:Blood Flow Velocity / Q000502:physiology; D001794:Blood Pressure / Q000502:physiology; D018619:Echocardiography, Doppler, Pulsed; D015716:Electrocardiography, Ambulatory; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D008943:Mitral Valve / Q000000981:diagnostic imaging / Q000503:physiopathology; D011187:Posture / Q000502:physiology*; D019462:Syncope, Vasovagal / Q000209:etiology*; D018667:Tilt-Table Test