What causes sudden chest pain and shortness of breath?
Sudden chest pain and difficulty breathing may be caused by conditions such as coronary atherosclerotic heart disease, pericarditis, or myocardial infarction. Immediate medical evaluation and treatment at a hospital are necessary.
1. Coronary Atherosclerotic Heart Disease: This is one of the most common cardiovascular diseases, primarily caused by atherosclerosis of the coronary arteries leading to narrowing or blockage of the vessel lumen, resulting in myocardial ischemia, hypoxia, or necrosis. Some patients may have no obvious symptoms, while others may experience chest pain, palpitations, and shortness of breath—especially sudden onset triggered by physical exertion, emotional stress, or smoking. It is important to rest in bed and maintain a quiet environment. Under medical guidance, medications such as nitroglycerin tablets or isosorbide dinitrate tablets can be taken to relieve symptoms.
2. Pericarditis: This refers to inflammation of the visceral and parietal layers of the pericardium, commonly caused by infections, tumors, metabolic disorders, or autoimmune diseases. Significant inflammatory exudate can irritate the heart and cause pain; when large amounts of pericardial effusion accumulate, cardiac compression may occur, leading to difficulty breathing. For severe pain, nonsteroidal anti-inflammatory drugs (NSAIDs) should be used according to medical advice, such as enteric-coated aspirin tablets or ibuprofen tablets. For cases caused by bacterial infection, antibiotics should be administered under medical guidance, such as injectable sodium penicillin or amoxicillin capsules.
3. Myocardial Infarction: This condition results from coronary artery occlusion causing ischemic death of heart muscle tissue. Patients may experience crushing chest pain, palpitations, restlessness, along with dyspnea and cold extremities. Under medical supervision, anticoagulant drugs such as unfractionated heparin or low-molecular-weight heparin can be administered via intravenous or subcutaneous injection to prevent thrombosis and maintain blood flow. Surgical intervention may be required when necessary.
In addition, other conditions such as angina pectoris and acute pulmonary embolism can also cause sudden chest pain and difficulty breathing. It is important to complete relevant examinations to determine the exact cause and receive appropriate treatment under medical guidance.