患者,男,52岁,因反复胸痛1周,加重3d入院。患者3d前睡眠中发作心前区压榨样疼痛,持续5h,心电图示Ⅱ,Ⅲ,aVF,V4~6导联ST段水平型压低0.05~0.20mV,心肌损伤标志物示CK-MB峰值29ng/ml(正常范围0~20ng/ml),cTnI峰值6.12ng/ml(正常范围0~0.2ng/ml)。超声心动图检查示静息状态下?