High T waves in the earliest stage of myocardial infarction

Common pitfalls in the interpretation of electrocardiograms from patients with acute coronary syndromes with narrow QRS: a consensus report

“…We believe that this pattern is the late "mirror image" of fully evolved ST-segment MI (STEMI) (Q waves with terminal T-wave inversion) and not the acute phase of STEMI. Likewise, the "Universal Definition 16 of Myocardial Infarction" document also states that ST depression in leads V 1 to V 3 suggests myocardial ischemia and STE-ACS equivalent, especially when the terminal T wave is positive (ST-elevation equivalent). 9 More studies are needed to assess the accuracy of these patterns to differentiate between acute inferolateral STEMI equivalent and anterior subendocardial ischemia in the clinical setting.…”

Origin of the giant R wave in acute transmural myocardial infarction in the pig.

“…Development of the giant R wave in stationary epicardial "mat" electrodes positioned across the ischemic zone . The unipolar electrocardiograms were recorded simultaneously from 14 epicardial electrodes (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14) with an inter-electrode distance of 1mm and also from a reference unipolar intra-left ventricular electrode (Ref.…”

The Electrocardiogram of the Ageing Male Rat

“…Therefore the increase in P wave voltage in old rats is probably due to the development of chronic lung disease, which was macroscopically evident in about 80% of these rats at autopsy. With reference to T waves, high voltages are often found in the electrocardiogram of patients with myocardial lesions (Bohning and Katz, 1933;Dressier and Roesler, 1947;Freundlich, 1956). …”