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Background: Ventricular pre-excitation by VDD pacing with a short AV delay is a potential therapy for patients with dilated heart failure (DCM). However, the optimal pacing site may not be the right ventricular apex, as is mostly widely employed.Methods: Cardiac catheterization by pressure-volume analysis was performed in 14 pts with DCM (NYHA-III-IV, mean EF 19 +/- 2%). Baseline QRS and PR intervals...
Background: Left ventricular hypertrophy (LVH) with chronic hypertension may lead to exertional intolerance and congestive heart failure. We tested the efficacy of chronic VDD pacing, a proposed treatment for obstructive HCM, on this secondary form of LVH.Methods: Patients with LVH (NYHA-III, 4-m, 5-f, arterial pressure: 16092) on chronic β and/or Ca 2+ -blocker and diuretic therapy,...
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