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inverted T-wave
Etiology:
- normal in ECG lead aVR
- hypertrophic cardiomyopathy
- ECG lead V2-V4
- ustable angina & myocardial infarction
- Wellens' syndrome:
- anterior T-wave inversions (also lateral biphasic T-waves)
- dyspnea on exertion & deep, symmetric T-wave inversions in leads V2 & V3 accompanied by a flat ST segment most likely unstable angina [1]
- hypokalemia
- pulmonary embolism
- right precordial leads (40%)
- pericarditis
a) T-wave inversion when ST segment returns to baseline
b) normalization of ST, PR & T wave changes occur late
- dextrocardia
- CNS processes
a) increased intracranial pressure
b) stroke
c) meningitis
d) subarachnoid hemorrhage
f) Stokes-Adams attacks
g) heat stroke
h) often deep, diffuse
i) may also see ST segment elevation
General
ECG T wave
References
- NEJM Knowledge+ Question of the Week. June 2, 2020
https://knowledgeplus.nejm.org/question-of-week/52/