Optimizing "delay period" for burst stimulation in dynamic cardiomyoplasty.

Helou, J; Misawa, Y; Stewart, J A; Colson, M; Chiu, R C · Ann Thorac Surg · 1995

case_series · Level IV

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Abstract

Hemodynamic evidence of systolic assist after dynamic cardiomyoplasty remains inconsistent. One of the relevant factors may be how the burst stimulator is programmed. In 3 patients who underwent cardiomyoplasty for idiopathic dilated cardiomyopathy, we examined the modes used to determine the delay period between the R-wave sensing and the onset of burst stimulation during cardiac systole. These modes include the fixed time mode, the valve-synchronized mode, and the flow-optimized mode. The rationale for choosing these modes and the benefits conferred by each are discussed.

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