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Unrecognized Myocardial InfarctionA Clinicopathologic Study
WILLIAM J. JOHNSON, M.D.;
RICHARD W. P. ACHOR, M.D.;
HOWARD B. BURCHELL, M.D.;
JESSE E. EDWARDS, M.D.
AMA Arch Intern Med. 1959;103(2):253-261.
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Although myocardial infarction has become increasingly well recognized, there continue to appear at necropsy myocardial infarcts, especially healed ones, which had been unrecognized clinically. It is also apparent that these unrecognized infarcts represent a considerable proportion of the myocardial infarcts at necropsy.1 It was therefore felt worth while to study the case histories and the necropsy data on patients with myocardial infarction in order to determine the incidence of clinical nonrecognition and attempt to clarify some of the factors that obscured the diagnosis.
Methods
Cases for study were selected from the necropsies performed at the Mayo Clinic during the years 1953 and 1954. To be included in this study the case had to meet three prerequisites: (1) The medical record had to be apparently adequate with respect to the past history, physical examination, and details of the symptoms at the onset of the final illness; (2) the heart had
. . . [Full Text PDF of this Article]
Author Affiliations
Rochester, Minn.
Mayo Clinic and Mayo Foundation. Fellow in Medicine, Mayo Foundation (Dr. Johnson); Section of Medicine (Drs. Achor and Burchell); Section of Pathologic Anatomy (Dr. Edwards). The Mayo Foundation, Rochester, Minn., is a part of the Graduate School of the University of Minnesota.
Footnotes
Submitted for publication May 20, 1958.
Abridgment of thesis submitted by Dr. Johnson to the Faculty of the Graduate School of the University of Minnesota in partial fulfillment of the requirements for the degree of Master of Science in Medicine.
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