title: Syncope: a review of pathophysiological mechanisms.
mesh_terms: D000959:Antihypertensive Agents / Q000009:adverse effects; D001921:Brain / Q000503:physiopathology*; D003371:Cough / Q000503:physiopathology; D003937:Diagnosis, Differential; D004071:Digitalis Glycosides / Q000009:adverse effects; D006321:Heart / Q000503:physiopathology*; D006327:Heart Block / Q000175:diagnosis / Q000503:physiopathology; D006439:Hemodynamics; D006801:Humans; D007024:Hypotension, Orthostatic / Q000175:diagnosis / Q000503:physiopathology; D002534:Hypoxia, Brain / Q000175:diagnosis; D008659:Metabolic Diseases / Q000175:diagnosis / Q000503:physiopathology; D010523:Peripheral Nervous System Diseases / Q000175:diagnosis / Q000503:physiopathology; D011802:Quinidine / Q000009:adverse effects; D013575:Syncope / Q000139:chemically induced / Q000175:diagnosis / Q000209:etiology* / Q000503:physiopathology; D014149:Tranquilizing Agents / Q000009:adverse effects; D014630:Vagus Nerve / Q000503:physiopathology; D014636:Valsalva Maneuver
chemical_list: D000959:Antihypertensive Agents; D004071:Digitalis Glycosides; D014149:Tranquilizing Agents; D011802:Quinidine