What does non specific changes in an ECG mean?

What does non specific changes in an ECG mean?

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.

What is non specific T wave changes?

NONSPECIFIC ST-T WAVE CHANGES. Nonspecific ST-T wave changes are very common and may be seen in any lead of the electrocardiogram. The changes may be seen in all or most of the leads (diffuse changes), or they may be present contiguous leads, such as the inferior, lateral, or anterior leads.

Are nonspecific ST T wave changes bad?

In the standard surface ECG, nonspecific ST-segment and T-wave (ST-T) changes are a common finding. Recently, a majority of studies have indicated that nonspecific ST-T abnormalities are significantly associated with cardiovascular morbidity and mortality.

What is nonspecific repolarization?

Nonspecific ST-T repolarization (NST) abnormalities alter the ST-segment for reasons often unrelated to acute myocardial ischemia, which could contribute to misdiagnosis or inappropriate treatment.

What does the medical term non specific mean?

Non-specific is a widely-used term in radiology, and clinical medicine in general. Non-specific is used for a symptom, sign, test result, radiological finding, etc., that does not point towards a specific diagnosis or etiology.

What is the difference between normal sinus rhythm and sinus rhythm?

The bottom line. Sinus rhythm refers to the pace of your heart beat that’s set by the sinus node, your body’s natural pacemaker. A normal sinus rhythm means your heart rate is within a normal range.

Does anxiety cause abnormal ECG?

Premature ventricular contractions is one of the manifestations of sympathetic over activity due to anxiety. However, anxiety might induce electrocardiographic (ECG) changes in normal person with normal heart, as in this documented case.

Is sinus rhythm good or bad?

Respiratory sinus arrhythmia is effectively benign, meaning that it is not harmful. It occurs when a person’s heart rate relates to their breathing cycle. In other words, when the person breathes in, their heart rate increases, and when they breathe out, the rate decreases.

What is a 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.

Is nonspecific ST abnormality bad?

Conclusions Persistent, minor, nonspecific ST-T abnormalities are associated with increased long-term risk of mortality due to MI, CHD, CVD, and all causes; the higher the frequency of occurrence of minor ST-T abnormalities, the greater the risk.

How do you determine early repolarization?

Early repolarization syndrome is diagnosed by the presence of J-point elevation ≥1 mm in ≥2 contiguous inferior and/or lateral leads of a standard 12-lead ECG in a patient resuscitated from otherwise unexplained ventricular fibrillation/ polymorphic ventricular tachycardia.

What does repolarization mean on EKG?

The presence of early repolarization (ER) pattern in the 12-lead ECG, defined as elevation of the QRS-ST junction (J point) often associated with a late QRS slurring or notching (J wave), is a common finding in the general population, particularly in the inferior and precordial lateral leads.

What are the different types of repolarization abnormalities?

Repolarization (ST-T,U) Abnormalities 1 Early repolarization (normal variant). 2 Juvenile T waves (normal variant). 3 Nonspecific abnormality, ST segment and/or T wave. 4 ST and/or T wave suggests ischemia. 5 ST suggests injury. 6 (more items)

Are there different forms of early repolarization in lead II?

Recently a different form of early repolarization has been associated with idiopathic ventricular fibrillation. This form is most often seen in lead II and consists of a ‘hump’ in the tail of the QRS complex, without ST elevation. Wellens HJ.

Why is early repolarization of ECG so important?

Early repolarization is frequently confused with other common causes of ST segment elevation and J wave syndromes. Because early repolarization is common and studies suggest that it is associated with increased risk of sudden cardiac death, it is important that health care providers are able to recognize the ECG pattern.

Is there a genetic test for early repolarization?

Genetic testing can currently only be recommended in selected cases with presumed malignant form of early repolarization (i.e with very high risk of sudden cardiac arrest). Early repolarization is frequently confused with other common causes of ST segment elevation and J wave syndromes.