Optimizing "delay period" for burst stimulation in dynamic cardiomyoplasty.
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.
Medical subject headings
- Cardiomyopathy, Dilated
- Cardiomyoplasty
- Electrocardiography