Key result
Adenosine administration during electrophysiologic study had limited value in identifying SVT mechanisms, with no difference in AV node termination between AVRT (85%) and AVNRT (86%).
Why the study?
Does the electrophysiologic response to adenosine help identify the mechanism of supraventricular tachycardia?
Observational (n=229)
Does the electrophysiologic response to adenosine help identify the mechanism of supraventricular tachycardia?
Absolute Event Rate: 85% vs 86%
The electrophysiologic response to adenosine has limited diagnostic value for identifying specific SVT mechanisms, though certain features like AV block favor AT or IST.
Authors
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May aid SVT mechanism differentiation during EP study; leaves open prospective validation before clinical adoption.
Glatter et al. (1999) conducted an observational in Supraventricular Tachycardia (SVT) (n=229). Adenosine vs. Different SVT mechanisms (e.g., AVRT vs AVNRT) was evaluated on Tachycardia termination at the AV node (AVRT vs AVNRT). Adenosine administration during electrophysiologic study had limited value in identifying SVT mechanisms, with no difference in AV node termination between AVRT (85%) and AVNRT (86%).