Key result
Systematic isoproterenol stimulation successfully unmasked a rare catecholamine-dependent concealed accessory pathway, enabling successful ablation.
Why the study?
Catecholamine sensitivity is an uncommon feature of accessory pathways that has almost exclusively been described in those with antegrade conduction.
Design
Case report
Authors
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May inform ablation of rare catecholamine-dependent pathways; leaves open generalizability pending prospective validation.
Case Report (n=1)
Systematic isoproterenol stimulation is important in patients referred for SVT ablation, especially if baseline EP study is negative, to unmask catecholamine-sensitive accessory pathways.
Steinberg et al. (2019) conducted a case report in Supraventricular tachycardia (n=1). Isoproterenol stimulation was evaluated. Systematic isoproterenol stimulation successfully unmasked a rare catecholamine-dependent concealed accessory pathway, enabling successful ablation.
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