Deglutition syncope with coexistent carotid sinus hypersensitivity.
A 63-year-old man had symptomatic deglutition-induced atrioventricular (A-V) block. There was also a coexistent mixed type carotid sinus hypersensitivity presenting as A-V block. No A-V nodal dysfunction was revealed during electrophysiologic studies. The vasodepressor response to carotid massage implies a central vagal hyperresponsiveness, which can also explain the cardioinhibitory responses to swallowing and carotid sinus massage, both possibly unmasked by posterior myocardial infarction.
Shapira
Y
Y
Department of Internal Medicine "B", Massada Center for Heart Diseases, Beilinson Medical Center, Petah Tiqva, Israel.
Strasberg
B
B
Ben-Gal
T
T
D001794:Blood Pressure; D002346:Carotid Sinus / Q000503:physiopathology*; D003679:Deglutition; D004562:Electrocardiography; D006327:Heart Block / Q000209:etiology / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D013575:Syncope / Q000209:etiology / Q000503:physiopathology*