To investigate the long-term effect of renal artery stent implantation on elderly patients with renal atherosclerotic hypertension and related clinical factors.

Eighty-five elderly patients with renal atherosclerotic hypertension admitted to Zibo People's Hospital from May 2013 to July 2015 were selected as the study subjects. All patients received renal artery stenting. The subjects were followed up for 3 to 48 months. The diastolic blood pressure (DBP), systolic blood pressure (SBP) and serum creatinine (Scr) were observed and the influencing factors of renal function deterioration and all-cause death were analyzed.

At the end of follow-up, the levels of DBP and SBP were lower than those before operation, and the levels of Scr were higher than those before operation. The difference was statistically significant (P<0.05). Renal function deteriorated in 18 cases (21.18%). Logistic multivariate analysis showed that diabetes mellitus, age (>60 years old) and Scr (>133.3 μmol/L) were independent risk factors for deterioration of renal function (P<0.05). Ten patients (11.76%) died, including 5 cases of renal failure, 4 cases of heart failure, and 1 case of unknown etiology. Logistic multivariate analysis showed that age over 60 was an independent risk factor for all-cause mortality (P<0.05).

Renal artery stent implantation in the treatment of elderly patients with atherosclerotic hypertension can maintain blood pressure stability for a long time. Scr (>133.3 μmol/L), age (>60 years old) and diabetes mellitus are risk factors leading to poor prognosis of renal artery stent implantation.