Male, 64 years old, retired worker. Since recent two months the patient suffered from shortness of Breath, chest tightness in attacks, arid aggravated after meals, walking quickly or when going up stairs.

• 男性,64岁,退休工人。近2个月来,病人患有发作性气短、胸闷,并在进食、快走、上楼时加重。