What is the main cause of angina pectoris?
Generally speaking, there is no single primary cause for angina pectoris. Angina may be triggered by factors such as cold exposure, intense physical exertion, emotional stress, anemia, or hypertension. If discomfort occurs, timely medical consultation is recommended. The specific analysis is as follows:
1. Cold Exposure
In cold environments, coronary artery spasm may occur, further reducing blood supply to the myocardium and potentially triggering angina. It is important to stay warm and avoid chilling during cold seasons.
2. Intense Physical Exertion
During strenuous exercise, the heart's oxygen consumption significantly increases. When oxygen supply cannot meet the increased demand, myocardial ischemia may result, leading to angina. It is advisable to engage in moderate aerobic activities such as walking, jogging, or tai chi, and to avoid intense exercise.
3. Emotional Stress
Emotional excitement increases myocardial oxygen demand. If coronary blood flow is insufficient, this can lead to myocardial ischemia and angina. It is important to learn relaxation techniques and avoid excessive tension or anxiety in daily life.
4. Anemia
Anemia, often caused by long-term vegetarian diets or picky eating, reduces the blood’s oxygen-carrying capacity. When myocardial oxygen demand rises but adequate oxygen supply is unavailable, angina may develop, possibly accompanied by symptoms such as pallor, fatigue, and dizziness. Patients should follow medical advice and may be prescribed medications such as ferrous sulfate tablets, folic acid tablets, or sustained-release succinic acid ferrous tablets for treatment.
5. Hypertension
Long-term high-salt diet and smoking can lead to hypertension, increasing cardiac workload and myocardial oxygen consumption, which may trigger angina. Symptoms such as headache and blurred vision may also occur. Under medical guidance, patients may use antihypertensive medications such as amlodipine besylate tablets, valsartan/amlodipine besylate tablets, or losartan potassium/hydrochlorothiazide tablets for management.
To prevent angina, it is important to maintain moderate physical activity, emotional stability, proper cold protection, blood pressure control, and a balanced diet.