Capoten test and renal artery angioplasty were performed in all patients to detect brain natriuretic peptide changes before and after the Capoten test and renal artery stent implantation.

• 行开搏通试验及肾动脉造影，测定患者行开搏通试验及肾动脉支架植入前后脑钠肽的变化。