What causes sudden palpitations and chest tightness, and what should I do?

Sudden palpitations and chest tightness may be related to excessive exercise, viral myocarditis, coronary atherosclerotic heart disease, and other causes. Treatment options include home care, medication, or surgery. Specific analyses are as follows:

1. Excessive Exercise

During intense physical activity, the body's demand for oxygen may increase significantly, potentially leading to myocardial ischemia. This can result in symptoms such as shortness of breath, rapid breathing, chest tightness, and breathlessness. In such cases, adequate rest is essential to prevent worsening of symptoms.

2. Viral Myocarditis

In daily life, inadequate protection may lead to viral infections. When viruses invade the myocardium, they can damage the heart muscle membrane, possibly causing symptoms such as chest pain, difficulty breathing, and a sense of impending doom. Under medical guidance, patients may take antiviral medications such as acyclovir tablets or oseltamivir phosphate granules.

3. Coronary Atherosclerotic Heart Disease

Coronary atherosclerotic heart disease can cause narrowing or blockage of the coronary arteries, impairing normal blood supply to the heart and leading to myocardial ischemia or hypoxia. This may trigger symptoms including chest pain, limb weakness, and tachycardia. For mild cases, doctors may prescribe medications such as nitroglycerin tablets or metoprolol tartrate sustained-release tablets. In severe cases, surgical interventions such as coronary artery bypass grafting or coronary stent placement may be required under medical supervision.

Besides the common causes mentioned above, conditions such as mitral stenosis, mitral valve prolapse, and aortic stenosis may also contribute. If symptoms persist despite adequate rest, prompt visit to a cardiology department at a hospital is recommended. After identifying the underlying cause, standardized treatment should be followed strictly according to medical advice.