Electrocardiographic manifestations of acute pericarditis

ECG manifestations of acute pericarditis are ST segment changes, PR interval prolongation, qrs complex low voltage, etc. Specific analysis is as follows:

1. ST segment changes

Because acute pericarditis releases a large number of inflammatory factors, resulting in myocardial cell damage, easy to cause cardiac ischemia and hypoxia, resulting in ST segment changes in ECG.

2. PR interval prolongation

Because acute pericarditis causes a large number of inflammatory secretions to exude, induces pericardial effusion, affects cardiac pumping function, induces sinus tachycardia, and easily causes ECG manifestations of PR interval prolongation.

3. qrs complex low voltage

Because acute pericarditis will affect cardiac relaxation and filling, resulting in current conduction obstruction generated by myocardium, easy to cause ECG manifestations of qrs complex low voltage.