Biventricular pacemaker therapy improves exercise capacity in patients with non-obstructive hypertrophic cardiomyopathy via augmented diastolic filling on exercise.

Quality of life Minnesota Living with Heart Failure Questionnaire scores improved significantly with BiV pacing compared to sham pacing in the whole patient group ( P = 0.001) (online supplementary Table S2 ), and this was true for the –LVEDV subgroup ( P = 0.02), with a strong trend observed in +LVEDV patients ( P = 0.05) ( Table 3 ).

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