Precordial ST segment depression in AIMI is associated with multivessel lesions or larger infarction area. Active treatment should be adopted.

• 急性下壁心肌梗死合并心前导联 ST段压低 ,表示多支冠脉病变或梗死面积大 ,应给予积极治疗 ,以改善患者病程和预后。