| Autor: |
Christian Steinberg, François Philippon, Gilles O’Hara, Jean Champagne |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
Indian Pacing and Electrophysiology Journal, Vol 20, Iss 2, Pp 73-77 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
0972-6292 |
| DOI: |
10.1016/j.ipej.2019.12.009 |
| Popis: |
Accessory pathways (APs) represent the substrate for atrioventricular reentrant tachycardia. Catecholamine-sensitivity is an uncommon feature of APs and has been almost exclusively been described in APs with antegrade conduction. We present the rare case of a catecholamine-dependent concealed AP that was only unmasked upon isoproterenol stimulation and successfully ablated. This case highlights the importance of systematic isoproterenol stimulation in patients referred for ablation of supraventricular tachycardia - in particular if the baseline electrophysiology study is negative. Otherwise, ablation targets may be missed. Learning objective: The absence of retrograde ventriculo-atrial conduction does not automatically exclude the presence of a concealed accessory pathway. Systematic isoproterenol stimulation should be part of any electrophysiology study for supraventricular tachycardia, to search for catecholamine-sensitive accessory pathways that may be otherwise missed. Keywords: Concealed accessory pathway, Orthodromic atrioventricular reentrant tachycardia, Isoproterenol |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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