Abstract
To study a case of Kounis syndrome (KS) type II, characterized by allergy, myocardial infarction, and ventricular fibrillation. A patient diagnosed with KS type II was admitted to Yangpu Hospital, School of Medicine, Tongji University in 2021. After systemic treatment, routine investigations, including blood tests, electrocardiography (ECG), and biochemical and coagulation analyses, were performed. The patient subsequently underwent coronary angiography and percutaneous coronary intervention, achieving a successful recovery. In patients with acute allergic reactions, particularly those presenting with severe manifestations or anaphylactic shock, timely ECG and cardiac enzyme testing are crucial to prevent misdiagnosis.