Acute pericarditis and cardiac tamponade after COVID-19 vaccination.

The article presents a case study of a 53-year-old Chinese man with hypertension developed exertional dyspnea after receiving the COVID-19 vaccine. It reports the symptoms worsened, leading to chest discomfort, abnormal electrocardiogram (ECG) findings, and cardiomegaly. It mentions initial pneumonia treatment, condition worsened, leading to pericardiocentesis. It highlights the symptoms improved after the procedure, and was discharged after monitoring.