Hypertrophic subaortic stenosis complicated by high degree heart block: successful treatment with an atrial synchronous ventricular pacemaker.
The development of high degree atrioventricular block in a patient with hypertrophic subaortic stenosis underscores the importance of a properly timed atrial contraction in this disorder. Atrial synchronous ventricular pacing therapy, by providing, reliably timed atrial systole and increased left ventricular end-diastolic volume, has an important role in this patient and in similar cases.
D000368:Aged; D001020:Aortic Stenosis, Subvalvular / Q000150:complications* / Q000503:physiopathology / Q000628:therapy; D002312:Cardiomyopathy, Hypertrophic / Q000150:complications*; D004562:Electrocardiography; D006327:Heart Block / Q000150:complications*; D006439:Hemodynamics; D006801:Humans; D008297:Male; D010138:Pacemaker, Artificial