发作时,病人胸骨后部或左前胸出现阵发性绞痛、闷痛或压榨性痛感,疼痛可放射至左肩、左上肢及肢端。

• The patient feels paroxysmal colic, obtuse pain or press sensation of pain in the back-breastbone or left prothorax when angina pectoris attacks.