1. 18-60 years old;

2. diagnosed as Takayasu arteritis according to 1990 ACR classification

3. renal artery stenosis is confirmed by imaging results

4. had inactive disease, and the dose of glucocorticoids \<10mg/day

5. blood pressure \>160/90mmHg in spite of two or more antihypertensive drug

6. had no surgery of renal artery, including PTA, stent, or others.

Drug-coated Balloon for Takayasu Arteritis Associated Renal Artery Stenosis