Why the study?
Do specific combinations of two or three ECG leads improve the detection of cardiac abnormalities compared to single leads in adults with cardiac disturbances?
Do specific combinations of two or three ECG leads improve the detection of cardiac abnormalities compared to single leads in adults with cardiac disturbances?
Combinations of three specific ECG leads can detect approximately 95% of cardiac abnormalities in patients with known disease, but their utility for general screening remains unproven due to unknown false-positive rates.
Supports lead combinations for detection in known disease; leaves open screening utility without false-positive data.
210 patients representing the average type of cardiac disturbance present in adults, with a predominance of arteriosclerotic and hypertensive heart disease, were studied with varying combinations of two, three, or more leads to determine the screening potentialities of such groupings. Single leads are not highly efficient in detection of abnormalities. Leads 1, aVF, and V 5 or aVR, 3, and V 5 selected approximately 95% of the patients with disease. Two or three leads as a screening procedure do not establish the merit of such a procedure and do not evaluate the problem of false-positives in apparently normal persons.
No takes yet. Share an insight, caveat, or question.
William A. Sodeman (1958) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: