منابع مشابه
R waves interrupting T waves.
In the course of some experiments on anesthetized dogs and cats concerned with the production experimentally of ventricular flutter and ventricular fibrillation, Fastier and Smirk (1948) noted that R waves sometimes appeared on the descent of the antecedent T waves, shortly before the onset of veittricular flutter. The flutter was induced by a substance amarin * which had been found by one of u...
متن کاملGiant negative T waves.
Marked T wave inversion in a life insurance applicant's ECG may suggest high risk. Careful analysis of the ECG, an informative attending physician statement, and judicious use of additional testing allows the medical director to put this striking ECG abnormality in its proper context.
متن کاملECG Diagnosis: Hyperacute T Waves.
After QT prolongation, hyperacute T waves are the earliest-described electrocardiographic sign of acute ischemia, preceding ST-segment elevation. The principle entity to exclude is hyperkalemia-this T-wave morphology may be confused with the hyperacute T wave of early transmural myocardial infarction.
متن کاملSecondary R waves in right chest leads.
The use of the electrocardiogram as an aid in the diagnosis of right ventricular hypertrophy is a comparatively recent advance. It has been suggested that an electrode placed in a similar position to V4 but to the right of the sternum (V4R) would be of additional value in that it would record right ventricular patterns more accurately than the present chest leads. We have been recording this le...
متن کاملTransient Inverted T Waves after Paroxysmal Tachycardia.
Graybiel and White (1934) have stressed that care must be' taken in the diagnosis of serious heart disease when inverted T1 or T2 waves are the only abnormal finding, and that this inversion is not invariably associated with organic disease. They cited two cases of paroxysmal tachycardia in young robust adults, one followed by inverted T1 and the other by inverted T2 and T3 waves; there was no ...
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ژورنال
عنوان ژورنال: Heart
سال: 1949
ISSN: 1355-6037
DOI: 10.1136/hrt.11.1.23