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  • Title: Sustained beneficial effects on blood pressure during long time retrospective follow-up after endovascular treatment of renal artery occlusion.
    Author: Alhadad A, Mattiasson I, Ivancev K, Gottsäter A, Lindblad B.
    Journal: J Hum Hypertens; 2004 Oct; 18(10):739-44. PubMed ID: 15085169.
    Abstract:
    We retrospectively evaluated short- and long-term effects of percutaneous transluminal renal angioplasty (PTRA) with or without stent placement of renal artery occlusion (RAO) upon blood pressure (BP), serum (s)-creatinine, and the need for antihypertensive treatment in 34 RAO patients who underwent PTRA during 1996-2002. In 24/34 (71%) treatment was considered technically successful, 22/24 (92%) were treated with PTRA + stent, two with only PTRA. Patients were followed for mean 2.6 (range 0-8) years, during which 14/34 (41%) patients died. In all 34 patients, systolic and diastolic BP (SBP and DBP) before treatment were 184 +/- 30/95 +/- 15 mmHg and had decreased at discharge (to 157 +/- 21/80 +/- 10 mmHg; P < 0.001 for both SBP and DBP), and remained lower after 1 year (154 +/- 20/83 +/- 7 mmHg; P < 0.001 for SBP and P < 0.01 for DBP), and at last follow-up (148 +/- 20/80 +/-12 mmHg; P < 0.001 for both SBP and DBP). No changes occurred in s-creatinine or the number of antihypertensive drugs. Similar results were seen in the subgroup of 24/34 (71%) patients in whom treatment was technically successful. Among the 24 patients undergoing technically successful PTRA, absence of nephrosclerosis (P = 0.035) and a shorter duration of hypertension (P = 0.020) predicted favourable clinical outcome. No adverse effects upon s-creatinine or the need for antihypertensive medication were seen in patients in whom treatment was considered a technical failure. Seven of these patients were treated with PTRA of another renal artery than the occluded, or with embolisation. In conclusion, RAO can be treated with endovascular techniques. Technically successful results with decreasing blood pressure levels were obtained in 71% of patients.
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