ECG for acute pericarditis can be confusing. The important point is that it's diagnosed by two points criteria. No. 1 is to identify diffuse ST elevations in all leads irrespective of origin. This will indicate that myocardium as a whole is involved which is especially the case in conditions like myopericarditis. The second part is to identify PR depressions which indicates subepicardial involvement. Take a look at the ECG below to understand the concept. Watch closely for subtle changes in ST and PR segments.
Electrocardiograms (EKG, ECG) explanations for teaching and learning. Best EKG learning tool for medical students, residents, fellows and cardiologists