September 1, 2000Journal of Cardiovascular Electrophysiology
Identification of Left Atrial Origin of Ectopic Tachycardia During Right Atrial Mapping:
Why the study?
Can analysis of electrograms at the high posteromedial right atrium distinguish left from right atrial tachycardia during right atrial mapping?
Population
22 patients, comprising 16 patients with left atrial origin ectopic tachycardia and a control group of 6…
Comparison
Right atrial mapping with analysis of… vs Pacing to simulate right atrial tachycardia.
Design
Cohort
Authors
Discussion
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Implication
May aid differentiation of left from right atrial tachycardia on RA mapping; hypothesis-generating and requires prospective validation before adoption.
Structured PICO
Can analysis of electrograms at the high posteromedial right atrium distinguish left from right atrial tachycardia during right atrial mapping?
P
Population
22 patients, comprising 16 patients with left atrial origin ectopic tachycardia (11 right superior pulmonary vein origin, 5 other left atrial origins) and a control group of 6 patients with pacing to simulate right atrial tachycardia.
I
Intervention
Right atrial mapping with analysis of electrograms (double potentials) at the high posteromedial right atrium.
C
Comparator
Pacing to simulate right atrial tachycardia (control group).
O
Outcome
Distinguishing left from right atrial tachycardia based on electrogram analysis.surrogate
Analysis of double potentials in the posteromedial right atrium during right atrial mapping can help identify left atrial ectopic tachycardias, particularly those from the right superior pulmonary vein.
Cite This Study
Soejima et al. (2000) studied this question.