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Interatrial conduction (activation) times.

C V Leier, G M Jewell, R D Magorien

    The American Journal of Cardiology
    |September 1, 1979
    PubMed
    Summary
    This summary is machine-generated.

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    This study found that electrograms from the coronary sinus, pulmonary artery, and esophagus accurately measure interatrial conduction times. These indirect measurements correlate well with established methods, aiding in understanding atrial arrhythmias.

    Area of Science:

    • Cardiology
    • Electrophysiology
    • Atrial Electrophysiology

    Background:

    • Interatrial conduction time is crucial for understanding atrial function and arrhythmias.
    • Indirect electrogram recordings offer potential for assessing interatrial conduction.

    Purpose of the Study:

    • To determine and correlate interatrial conduction times using simultaneous electrograms from the coronary sinus, pulmonary artery, and esophagus.
    • To evaluate the utility of these indirect recording sites for quantifying interatrial conduction.

    Main Methods:

    • Simultaneous recording of left atrial electrograms from the coronary sinus, right pulmonary artery, and esophagus.
    • Study included 10 patients with normal atria and 16 with left atrial enlargement.
    • Correlation analysis between P wave duration and interatrial conduction times from different sites.

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    Main Results:

    • High correlation between P wave duration and interatrial conduction times from coronary sinus and pulmonary artery.
    • Good correlations found between pulmonary artery and esophageal recordings with distal coronary sinus measurements.
    • Esophageal and pulmonary artery recordings correlated well with the standard distal coronary sinus measurements.

    Conclusions:

    • Electrograms from the coronary sinus, pulmonary artery, and esophagus provide satisfactory quantification of interatrial conduction.
    • These indirect recording sites are valuable for assessing interatrial conduction and understanding atrial arrhythmia mechanisms.