What are the ECG changes associated with angina pectoris?

What are the ECG changes associated with angina pectoris?

If done during an angina attack, ECG is likely to show reversible ischemic changes: T wave discordant to the QRS vector. ST-segment depression (typically) ST-segment elevation.

Can angina pectoris be seen on ECG?

Angina pectoris is a clinical syndrome of precordial discomfort or pressure due to transient myocardial ischemia without infarction. It is typically precipitated by exertion or psychologic stress and relieved by rest or sublingual nitroglycerin. Diagnosis is by symptoms, ECG, and myocardial imaging.

Are there ECG changes in unstable angina?

The ECG in unstable angina may show hyperacute T-wave, flattening of the T-waves, inverted T-waves, and ST depression. ST elevations indicate STEMI and these patients should be treated with percutaneous coronary intervention or thrombolytics while they wait on the availability of a catheterization lab.

What does ECG show in stable angina?

An ECG can show if the heart is beating too fast, too slow or not at all. Your health care provider also can look for patterns in the heart rhythm to see if blood flow through the heart has been slowed or interrupted. Chest X-ray. A chest X-ray shows the condition of the heart and lungs.

Which ECG change is indicative of myocardial injury?

Myocardial ischemic-like ECG changes include ST-segment deviations, T wave inversion, and Q-waves. The earliest manifestations of myocardial ischemia typically involve T waves and the ST segment. It is believed that ECG changes in CCS most often represent preexisting ischemic cardiac disease[32].

Does angina increase troponin?

Troponin levels can be elevated as a result of health conditions other than heart attack. Conditions that may cause a patient to have elevated troponin levels include: Other types of acute coronary syndrome, including unstable angina. Acute myocarditis, which is inflammation of the heart muscle.

What does the T-wave represent?

The T wave on the ECG (T-ECG) represents repolarization of the ventricular myocardium. Its morphology and duration are commonly used to diagnose pathology and assess risk of life-threatening ventricular arrhythmias.

What causes ST elevation on ECG?

ST segment elevation occurs because when the ventricle is at rest and therefore repolarized, the depolarized ischemic region generates electrical currents that are traveling away from the recording electrode; therefore, the baseline voltage prior to the QRS complex is depressed (red line before R wave).