Value and Limitations of Electrocardiogram in Diagnosis of Slight and Subacute Coronary AttacksBr Med J 1968; 4 doi: https://doi.org/10.1136/bmj.4.5632.673 (Published 14 December 1968) Cite this as: Br Med J 1968;4:673
- David Short
The electrocardiogram recorded at the initial consultation was compared with the final diagnosis in 211 consecutive suspected slight or sub-acute coronary attacks in 206 patients.
In 77 (36%) of the 211 episodes, acute (or subacute) myocardial infarction was finally diagnosed. The initial E.C.G. showed a diagnostic pattern in only 19 (25%) of these 77 episodes; in 39 (50%) it was abnormal but not diagnostic of recent infarction; while in 19 (25%) the E.C.G. showed no abnormality classified under the Minnesota Code, though in 16 of these there were definite minor changes.
In 61 (29%) of the 211 episodes acute myocardial infarction was excluded and an alternative diagnosis was made. The E.C.G. was strictly normal in only 23 (38%) of these 61 episodes; in 15 (25%) it showed minor abnormalities, and in 23 (38%) it was grossly abnormal.