1 case data the patient, female, 83 years old, was admitted to the Department of Cardiology, Affiliated Hospital of North Sichuan Medical College on July 26, 2022 for further diagnosis and treatment because of "dyspnea for 1 D", and a large amount of pericardial effusion was found during chest CT examination in other hospitals, without chest pain, chest tightness and other discomfort during the course of the disease. Past history: the patient was diagnosed as "after intravenous thrombolytic therapy for acute cerebral infarction" in the Department of Neurology on July 11, 2022; History of diabetes mellitus; There was no history of syncope, family sudden death and heart disease; No history of drug allergy.