Why the study?
Do endocardial electrogram characteristics and slow conduction indexes differ between patients with different underlying heart diseases and ventricular arrhythmias?
Population
158 patients with a clinical history of no ventricular arrhythmia, nonsustained ventricular tachycardia…
Comparison
Endocardial catheter mapping during sinus rhythm vs Comparison between underlying disease types and…
Design
Cross-sectional
Authors
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Substrate varies by disease and arrhythmia type; hypothesis-generating for endocardial resection candidacy in noncoronary cardiomyopathy.
Do endocardial electrogram characteristics and slow conduction indexes differ between patients with different underlying heart diseases and ventricular arrhythmias?
The underlying electrophysiologic substrate varies by heart disease and arrhythmia type, indicating that patients with noncoronary cardiomyopathy have a relatively normal endocardium and are not candidates for endocardial resection surgery.
Cassidy et al. (1986) studied this question.
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