title: Failure of the aortic valve to open during inspiration in cardiac tamponade.
abstract: A new echocardiographic sign, failure of the aortic valve to open during inspiration, is described in a 35-year-old man with cardiac tamponade. There was disappearance of the radial pulse and blood pressure during inspiration and the usual clinical and echocardiographic signs.
mesh_terms: D000328:Adult; D001021:Aortic Valve / Q000503:physiopathology*; D001794:Blood Pressure; D002305:Cardiac Tamponade / Q000175:diagnosis / Q000503:physiopathology*; D004452:Echocardiography; D006801:Humans; D008297:Male; D012119:Respiration