Key result
Alcohol septal ablation for hypertrophic obstructive cardiomyopathy can cause transient left septal fascicular block, potentially indicating a critical proximal left anterior descending artery obstruction.
Case Report (n=1)
No
Alcohol septal ablation for hypertrophic obstructive cardiomyopathy can cause transient left septal fascicular block.
May signal non-ischemic conduction effects post-ablation; leaves open its specificity for LAD obstruction.
Left septal fascicular block, or blockage of the middle fibers of the left bundle branch, is known to be suggestive of a critical proximal obstruction of the left anterior descending coronary artery before its first septal perforator branch. We describe the case of a 68-year-old male who exhibited this transient intraventricular dromotropic disturbance following alcohol septal ablation for hypertrophic obstructive cardiomyopathy.
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Elvin et al. (2019) conducted a case report in Hypertrophic Obstructive Cardiomyopathy (n=1). Alcohol septal ablation was evaluated on Development of left septal fascicular block. Alcohol septal ablation for hypertrophic obstructive cardiomyopathy can cause transient left septal fascicular block, potentially indicating a critical proximal left anterior descending artery obstruction.
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