Key result
High grade atrioventricular block in hypertrophic cardiomyopathy can abruptly cause syncope or sudden death, necessitating prompt consideration of permanent cardiac pacing.
High grade A-V block is a rare but serious complication of HCM that can cause syncope and may require prompt permanent pacemaker implantation.
High-grade AV block warrants vigilance in pediatric HCM syncope; this Level 5 case leaves optimal pacing strategies open.
A 10 year old girl with hypertrophic cardiomyopathy (HCM) developed high grade atrioventricular (A-V) block unexpectedly, which instantly led to syncope; she required a permanent pacemaker. High grade A-V block, a rare complication of HCM, relates closely to syncope or sudden death in this disease and if progressive the use of cardiac pacing should be considered without delay.
No takes yet. Share an insight, caveat, or question.
Tamura et al. (1995) studied this question. High grade atrioventricular block in hypertrophic cardiomyopathy can abruptly cause syncope or sudden death, necessitating prompt consideration of permanent cardiac pacing.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: