MILTON MAZER; JOHN A. REISINGER
It is often assumed that changes in the heart accompanying the aging process may be mirrored by the electrocardiogram, and that tracings in aged individuals should be interpreted with less rigid criteria than in the young. There is actually little evidence to support this view. Most of the studies which purport to show more electrocardiographic abnormalities in the later age groups are based on either "non-cardiac hospital patients" or on series of routine tracings of inadequately studied individuals. The careful study of Larsen and Skulason1 avoided most of the sources of error of previous investigations. In a group of 100
MILTON MAZER, JOHN A. REISINGER. AN ELECTROCARDIOGRAPHIC STUDY OF CARDIAC AGING BASED ON RECORDS AT REST AND AFTER EXERCISE(AN ELECTROCARDIOGRAPHIC STUDY OF CARDIAC AGING BASED ON RECORDS AT REST AND AFTER EXERCISE*). Ann Intern Med. 1944;21:645–652. doi: 10.7326/0003-4819-21-4-645
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Published: Ann Intern Med. 1944;21(4):645-652.
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