Key result
Esophageal ECG leads may help diagnose doubtful left atrial enlargement despite mixed atrial flutter results.
Why the study?
Can direct and semidirect electrocardiography characterize atrial activation in normal and diseased hearts?
Population
Humans under normal conditions, and patients with mitral heart disease, cor pulmonale, and auricular flutter
Design
Cross-sectional
Authors
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May support selective esophageal ECG use in ambiguous left atrial enlargement; leaves open standardization and flutter utility pending prospective data.
Observational
Can direct and semidirect electrocardiography characterize atrial activation in normal and diseased hearts?
Direct and esophageal electrocardiography can map atrial activation and may aid in diagnosing left atrial enlargement.
Wenger et al. (1952) conducted an observational in Normal conditions, mitral heart disease, cor pulmonale, auricular flutter. Direct and semidirect electrocardiography was evaluated on Spread of activation in the atria. Direct and semidirect electrocardiography using esophageal leads may be helpful for diagnosing doubtful left atrial enlargement, though results in 6 cases of auricular flutter were not uniform.
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