PR segment depression can be a signal for pericarditis or atrial infarction. PR segment elevation occurs in lead aVR in the setting of pericarditis. Read more about.

Electrocardiographic changes are common and typically evolve through four stages: Stage I: diffuse ST-segment elevation (typically concave up) and PR-segment depression are recorded in the first ...

Pericarditis, or inflammation of the pericardium, has typical ECG findings. ... Stage II: ST segment elevation and PR depression have resolved and T waves may be normal or flattened.

Acute pericarditis in the United States is usually idiopathic and presumed to be viral. ... PR-segment depression is the only ECG finding. 1–3 Early repolarization can also be confused with ...

In acute pericarditis, the ECG typically shows a pattern of PR segment depression, concave ST-segment elevation, and T-wave inversion. 4 Myocarditis alone usually presents with nonspecific ST ...

Diagnostic Tests Electrocardiography. Since acute idiopathic/viral pericarditis is a common cause of transient CP, ST elevation and PR segment depression in all derivations except a VR and V 1 ...

Patients may show characteristic changes, such as ST-segment elevation and PR-segment depression, which can help differentiate pericarditis from other cardiac conditions.

The case authors note that most cases of acute pericarditis are of an unknown etiology, which may or may not be infectious in nature. However, bacteria -- usually gram-positive cocci -- have been ...

What investigations should be considered? At least two of the following four criteria should be present for a diagnosis of acute pericarditis: characteristic chest pain; pericardial friction rub; ...

However, the PR-segment depression is not as marked as that in patients with acute pericarditis. 10 If this early-repolarization pattern involves limb leads, the ST segment is more elevated in ...