Stage II: ST segment elevation and PR depression have resolved and ... and thus the ECG is back to normal. Note: The ECG changes with pericarditis must be distinguished from those of early ...

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 ...

The PR segment is the portion of the ECG from the end of the P ... certain cardiac disease states. PR segment depression can be a signal for pericarditis or atrial infarction.

Acute pericarditis is diagnosed by the presence of two or more of the following features: chest pain, pericardial friction rub, ECG changes (diffuse ST-segment elevation or PR depression ...