September 4, 2001Circulation
Different Patterns of Interatrial Conduction in Clockwise and Counterclockwise Atrial Flutter
Key result
Counterclockwise and clockwise atrial flutter demonstrated different patterns of coronary sinus activation in 7 of 9 patients, with a proximal-to-distal pattern in CC Afl and a fused pattern in C Afl.
Why the study?
What are the patterns of interatrial conduction and coronary sinus activation in clockwise versus counterclockwise atrial flutter?
Population
9 patients with both counterclockwise (CC) and clockwise (C) atrial flutter (Afl)
Comparison
Electrophysiological study with coronary sinus… vs Comparison of activation patterns between…
Design
Case_series
Authors
Discussion
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Implication
CS activation patterns differ in CC versus clockwise Afl; leaves open refined mapping strategies in EP studies.
Study Design
Type
Observational (n=9)
Structured PICO
What are the patterns of interatrial conduction and coronary sinus activation in clockwise versus counterclockwise atrial flutter?
P
Population
9 patients with both counterclockwise and clockwise atrial flutter undergoing electrophysiological study.
E
Exposure
Electrophysiological study with coronary sinus (CS) recordings using a decapolar catheter
C
Comparator
Comparison of activation patterns between counterclockwise (CC) and clockwise (C) atrial flutter
O
Outcome
Patterns of coronary sinus (CS) activationsurrogate
Clockwise and counterclockwise atrial flutter exhibit different patterns of interatrial conduction, suggesting predominant left atrial activation over Bachmann's bundle during clockwise flutter and over the coronary sinus os during counterclockwise flutter.
Cite This Study
Marine et al. (2001) conducted an observational in Counterclockwise and clockwise atrial flutter (n=9). Counterclockwise atrial flutter vs. Clockwise atrial flutter was evaluated on Pattern of coronary sinus (CS) activation. Counterclockwise and clockwise atrial flutter demonstrated different patterns of coronary sinus activation in 7 of 9 patients, with a proximal-to-distal pattern in CC Afl and a fused pattern in C Afl.