支架置入已成为肾动脉开口处狭窄的标准治疗方法,但小直径(5mm)肾动脉狭窄因置入支架后再狭窄率太高而是肾动脉支架术的相对禁忌证。本文报道一例在小直径肾动脉狭窄应用西罗莫司洗脱支架治疗。患者男,41岁,因间断胸闷2周入院。既往有高血压病史5年,血压波动在150～16080～90m Stent placement has become the standard treatment for stenosis at the opening of the renal artery, but the relative contraindication of renal artery stenting is due to the high rate of restenosis after placement of small diameter (5mm) renal artery stenosis. This article reports the use of sirolimus-eluting stents in the treatment of small diameter renal artery stenosis. Male, 41 years old, was admitted to the hospital with intermittent chest pain for 2 weeks. Previous history of hypertension 5 years, blood pressure fluctuations in the 150 ~ 16080 ~ 90m