What does st and t wave abnormality mean

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Causes of Non Specific ST Segment and T Wave Changes [1]
What does ST T abnormalities mean?
What causes nonspecific ST and T wave abnormality?
What causes ST abnormality?
Should I worry about T wave abnormality?

Schematic representation of normal ECG segments

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor-In-Chief: Cafer Zorkun, M.D., Ph.D. [2]

Synonyms and keywords: NSSTW changes

Overview

Non specific ST T wave changes refer to changes in the T waves (such as inversion or flattening) and ST segments (such as ST depression) on the electrocardiogram that due not follow an anatomic distribution and are not diagnostic of any one condition.

Causes of Non Specific ST Segment and T Wave Changes [1]

Adrenal insufficiency
Anxiety
Central nervous system diseases
Congestive heart failure
Digoxin
Electrolyte disturbances
Gallbladder disease
Heart failure
Hyperkalemia
Hyperventilation (in 70% of patients after 30 to 60 seconds)
Hypokalemia
Hypopituitarism
Hypothyroidism
Ischemic heart disease
Left ventricular hypertrophy (LVH)
Mitral valve prolapse (MVP)
Orthostatic changes (3 to 23%), most prominent in the inferior leads
Pacemaker
Pancreatitis
Pheochromocytoma
Postprandial T-waves changes
Pulmonary embolism
Pericarditis
Right ventricular hypertrophy (RVH)
Truncal vagotomy

References

↑ Hammill S. C. Electrocardiographic diagnoses: Criteria and definitions of abnormalities, Chapter 18, MAYO Clinic, Concise Textbook of Cardiology, 3rd edition, 2007 ISBN 0-8493-9057-5

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What does ST T abnormalities mean?

ST-T abnormalities may represent preclinical cardiac involvement of CVRs more sensitively than LVH on ECG and ECG findings may be used in mass examinations.

What causes nonspecific ST and T wave abnormality?

It has been suggested that nonspecific ST-T changes might represent subclinical coronary artery disease, early left ventricular hypertrophy, increased left ventricular mass, or autonomic imbalance.

What causes ST abnormality?

The ST Segment represents the interval between ventricular depolarization and repolarization. The most important cause of ST segment abnormality (elevation or depression) is myocardial ischaemia or infarction.

Should I worry about T wave abnormality?

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.