title: Atrial tachypacing in the treatment of a patient with primary orthostatic hypotension.
mesh_terms: D000368:Aged; D002304:Cardiac Pacing, Artificial; D006325:Heart Atria; D006339:Heart Rate; D006439:Hemodynamics; D006801:Humans; D007024:Hypotension, Orthostatic / Q000145:classification / Q000503:physiopathology / Q000628:therapy*; D008297:Male; D011187:Posture; D013564:Sympathetic Nervous System / Q000503:physiopathology; D013997:Time Factors