Key result
Adenosine administration identified dual AV node physiology on surface ECG in 76% of patients with inducible AVNRT compared to 5% of patients without inducible AVNRT (P<0.01).
Why the study?
Does incremental adenosine administration during sinus rhythm identify dual AV node physiology and predict inducible AVNRT in patients with undocumented palpitations suggestive of PSVT?
Population
37 patients with symptoms indicative of paroxysmal supraventricular tachycardia but no prior documentation…
Comparison
Incremental dosages of adenosine administered… vs Patients without inducible AVNRT during…
Design
Cohort
Authors
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Adenosine may aid bedside diagnosis of dual AV node physiology in undocumented PSVT; hypothesis-generating and requires prospective validation.
Observational (n=37)
Does incremental adenosine administration during sinus rhythm identify dual AV node physiology and predict inducible AVNRT in patients with undocumented palpitations suggestive of PSVT?
Absolute Event Rate: 76% vs 5%
p-value: p=<0.01
Bedside administration of adenosine with careful surface ECG monitoring can noninvasively identify dual AV node physiology and predict AVNRT in patients with undocumented palpitations.
Tebbenjohanns et al. (1999) conducted an observational in Paroxysmal supraventricular tachycardia (PSVT) (n=37). Adenosine vs. Patients without inducible AVNRT was evaluated on Suggestive signs of dual AV node physiology on the surface ECG (sudden jump of PQ interval >= 50 msec) (p=<0.01). Adenosine administration identified dual AV node physiology on surface ECG in 76% of patients with inducible AVNRT compared to 5% of patients without inducible AVNRT (P<0.01).
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