The coronary artery stenosis is treated with balloon angioplasty and stent (PTCA) to improve the curative effect in clinic recently besides the routine therapy with dilated coronary artery drug.

• 冠状动脉狭窄,除常规应用扩冠药物外,近代已开展经皮冠状动脉球囊扩张置放支架疗法(PTCA),使临床疗效明显提高。