title: Optimizing "delay period" for burst stimulation in dynamic cardiomyoplasty.
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.
authors: Division of Cardiovascular and Thoracic Surgery, McGill University, Montreal, Quebec, Canada.
authors: J
authors: J
authors: Helou
authors: Y
authors: Y
authors: Misawa
authors: J A
authors: JA
authors: Stewart
authors: M
authors: M
authors: Colson
authors: R C
authors: RC
authors: Chiu
mesh_terms: D000368:Aged; D001011:Aorta / Q000503:physiopathology; D001783:Blood Flow Velocity; D002311:Cardiomyopathy, Dilated / Q000209:etiology / Q000503:physiopathology / Q000601:surgery*; D018421:Cardiomyoplasty; D015150:Echocardiography, Doppler; D004562:Electrocardiography; D006333:Heart Failure / Q000150:complications; D006801:Humans; D008297:Male; D008875:Middle Aged