REDISTRIBUTION OF MYOCARDIAL PERFUSION DURING PERMANENT DUAL-CHAMBER PACING IN SYMPTOMATIC NONOBSTRUCTIVE HYPERTROPHIC CARDIOMYOPATHY - A QUANTITATIVE POSITRON EMISSION TOMOGRAPHY STUDY
Jl. Posma et al., REDISTRIBUTION OF MYOCARDIAL PERFUSION DURING PERMANENT DUAL-CHAMBER PACING IN SYMPTOMATIC NONOBSTRUCTIVE HYPERTROPHIC CARDIOMYOPATHY - A QUANTITATIVE POSITRON EMISSION TOMOGRAPHY STUDY, HEART, 75(5), 1996, pp. 522-524
Dual chamber pacing causes significant symptomatic improvement in many
patients with hypertrophic cardiomyopathy. The mechanism behind this
beneficial response is not fully understood. Positron emission tomogra
phy showed a redistribution of myocardial flow during pacing in a pati
ent with non-obstructive hypertrophic cardiomyopathy. Early septal act
ivation reduced septal fibre strain and blood flow and increased septa
l perfusion reserve.