Renal Stenting for Kidney Salvage in the Management of Renal Artery Atherosclerotic Stenosis

• Published in: Angiology Vol. 66; no. 8; pp. 785 - 791
• Main Authors: Martinelli, O., Malaj, A., Antignani, P.L., Frati, G., Belli, C., Venosi, S., Irace, L., Gossetti, B., Gattuso, R.
• Format: Journal Article
• Language: English
• Published: Los Angeles, CA SAGE Publications 01-09-2015
• Subjects: Aged; Biomarkers - blood; Blood Pressure; Blood Urea Nitrogen; Creatinine - blood; Disease Progression; Endovascular Procedures - instrumentation; Female; Humans; Kidney - physiopathology; Male; Predictive Value of Tests; Recovery of Function; Renal Artery Obstruction - complications; Renal Artery Obstruction - diagnosis; Renal Artery Obstruction - physiopathology; Renal Artery Obstruction - therapy; Renal Insufficiency, Chronic - blood; Renal Insufficiency, Chronic - complications; Renal Insufficiency, Chronic - diagnosis; Renal Insufficiency, Chronic - physiopathology; Retrospective Studies; Severity of Illness Index; Stents; Time Factors; Treatment Outcome; Vascular Patency; Vascular Resistance; renal stenting; hypertension; renal salvage
• ISSN: 0003-3197; 1940-1574
• DOI: 10.1177/0003319714553005

We studied the usefulness of preoperative resistance index to select patients who will benefit most from renal stenting. Sixty-two patients underwent renal stenting. All had chronic renal insufficiency with serum creatinine values ranging from 1.5 to 2.5 mg/dL and blood urea nitrogen between 80 and 107 mg/dL. All treated renal artery stenosis were >70%. Reduction in blood pressure in the early stages was observed in 39 (62.9%) patients; 31 (79.4%) patients returned to preoperative values within 12 months. A progressive reduction in creatinine values and blood urea nitrogen was reached in 43 (69.4%) patients, 12 (19.4%) patients remained unchanged, and the remaining 7 (11.2%) patients worsened. The best improvement in renal function was obtained in patients with a resistance index of ≤0.75 A preoperative resistance index up to 0.75 could be used as an indicator to predict which candidates will have improved renal function after stenting.