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Transcatheter alcohol septal ablation for hypertrophic obstructive cardiomyopathy can be complicated by complete AV dissociation requiring permanent pacing.
We performed transcatheter alcohol ablation of the septum in a case of hypertrophic obstructive cardiomyopathy. The patient showed marked reduction in LVOT gradient; however, he developed complete atrioventricular (AV) dissociation following the procedure, requiring AV sequential pacing. This important complication of this novel technique is highlighted.
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Bhargava et al. (1997) studied this question.
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