Posture-dependent chronotropic effect of carotid sinus massage.
The hypertensive carotid sinus can be divided into cardioinhibitory (chronotropic) and vasodepressor components; the former can be evaluated by carotid sinus massage performed in the supine position. We present the case of a patient in whom the abnormal cardioinhibitory response could only be demonstrated while in the sitting position.
D002346:Carotid Sinus / Q000503:physiopathology*; D004562:Electrocardiography; D006339:Heart Rate; D006801:Humans; D008297:Male; D008405:Massage; D008875:Middle Aged; D011187:Posture; D012021:Reflex, Abnormal / Q000503:physiopathology*