What does T wave depression indicate?
T-wave inversion in the anterior precordial leads may be seen in cases of acute pulmonary embolism, while flat- tened T waves with prominent U waves and ST-segment depression may reflect hypokalemia or digitalis therapy.
What does diffuse ST depression mean?
Diffuse ST-segment depression with ST-segment elevation in the lead augmented vector right (aVR) in 12-lead electrocardiography may indicate the possibility of coronary artery disease involving the left main coronary artery or proximal left anterior descending artery, pulmonary embolism or takotsubo cardiomyopathy.
What can cause diffuse ST depression?
Other, non-ischemic, causes include:
- Side effect of digoxin.
- Right or left ventricular hypertrophy.
- Intraventricular conduction abnormalities (e.g., right or left bundle branch block, WPW, etc.)
- Reciprocal ST elevation.
- Mitral valve prolapse.
Can depression cause T waves?
The researchers found that elevated depressive symptoms were associated with increased odds of T-wave inversion, after multivariable adjustment (odds ratio, 2.02; P = 0.001), while greater trait anxiety was associated with reduced odds of T-wave inversion (odds ratio, 0.47; P = 0.003).
What does abnormal T wave in ECG mean?
Problem/Condition. The electrocardiographic T wave represents ventricular repolarization. Abnormalities of the T wave are associated with a broad differential diagnosis and can be associated with life-threatening disease or provide clues to an otherwise obscure illness.
Is it normal to have ST depression?
ST segment depression of 1 mm or more, lasting 0.08 second or more, is generally considered a positive (abnormal) response. False-negative (normal) results can occur, however, in patients with ischemic heart disease and false-positive results can occur in normal people.
What is abnormal T wave in ECG?
T‐wave abnormalities in the setting of non‐ ST ‐segment elevation acute coronary syndromes are related to the presence of myocardial edema. High specificity of this ECG alteration identifies a change in ischemic myocardium associated with worse outcomes that is potentially reversible.
What is diffuse T-wave inversion?
Diffuse T-wave inversion is a nonspecific change that is thought to be related to catecholamine release but with no prognostic implications. 2 Typical anginal chest pain associated with acute coronary syndrome is a pressure-like pain that worsens with exertion or emotional stress and improves with rest or nitroglycerin.
How common is diffuse ST depression with ST elevation in AVR?
It was a baseline finding in 62% of patients, usually due to LVH. Reference: Knotts RJ, Wilson JM, Kim E, Huang HD, Birnbaum Y. Diffuse ST depression with ST elevation in aVR: Is this pattern specific for global ischemia due to left main coronary artery disease?
What causes T wave inversion in myocardial inflammation?
T-wave inversion is not seen in all such cases of myocardial inflammatory disorders. When it is seen in these patients, T-wave inversion usually indicates a resolving process. There are a number of neurogenic causes of primary T-wave inversions.
What is the prognosis of inversion of the T wave?
Keep in mind elevated T waves may even occur in as normal variation in young patients and athletes, typically in the precordial V2-V4 leads. Inverted T waves are associated with myocardial ischemia. The inversion of a T wave is not specific for ischemia, and the inversion itself does not correlate with a specific prognosis.