February 25, 2008EP EuropaceOpen Access

A novel pacing manoeuvre to diagnose atrial tachycardia

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Why the study?

Does atrial differential pacing accurately diagnose atrial tachycardia in patients with paroxysmal SVT?

Structured PICO

Does atrial differential pacing accurately diagnose atrial tachycardia in patients with paroxysmal SVT?

Population

52 patients with paroxysmal supraventricular tachycardia (SVT), including 24 with atrioventricular nodal re-entry tachycardia (AVNRT), 13 with atrioventricular re-entry tachycardia (AVRT), and 15 with atrial tachycardia (AT).

Intervention

Atrial differential pacing (overdrive atrial pacing during SVT with the same cycle length from both the high right atrium and the coronary sinus).

Comparator

Non-AT patients (AVNRT and AVRT) for diagnostic comparison.

Outcome

Difference between the V-A intervals of the first returning beat of tachycardia between the two pacing sites (delta V-A).surrogate

Atrial differential pacing during paroxysmal SVT is a highly sensitive and specific maneuver for diagnosing atrial tachycardia, particularly useful when standard maneuvers are inapplicable.

Discussion

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Implication

Supports atrial differential pacing for AT diagnosis in paroxysmal SVT; extends observational data but leaves open prospective validation.

Cite This Study

Sarkozy et al. (2008) studied this question.

synapsesocial.com/papers/6a7f19af0d396ca0cf0fc758 https://doi.org/10.1093/europace/eun032

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Implication

Supports atrial differential pacing for AT diagnosis in paroxysmal SVT; extends observational data but leaves open prospective validation.