冠心病（CHD）特指供應心臟血液的冠狀動脈發生硬化。當心臟供血不足時，患者會在運動或情緒激動時感到「心絞痛」（Angina）。這通常表現為胸部壓迫感，並可能放射至左肩、頸部或下頜。
Coronary Heart Disease (CHD) specifically refers to the hardening of the coronary arteries that supply blood to the heart. When blood supply is insufficient, patients may experience "Angina" during exertion or emotional stress. This typically manifests as chest pressure that may radiate to the left shoulder, neck, or jaw.
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治療手段 (Treatment): 藥物治療如硝酸甘油 (Medications like Nitroglycerin)；手術如血管造影及支架植入 (Procedures like Angiography and Stenting).