Ostial Renal Artery Stenosis Angioplasty: Immediate and Mid-term Angiographic and Clinical Results

Angiographic and Intravascular Ultrasound Assessment of Immediate and 9-Month Efficacy of Percutaneous Transluminal Renal Artery Balloon Angioplasty with Subsequent Brachytherapy in Patients with Renovascular Hypertension

“…Some authors report the restenosis rate even as high as 80%, which may be associated with suboptimal dilation, possibility of dissection during the procedure and elastic recoil of the vascular wall in response to balloon stretching [18] . Our results revealed an acceptable procedural efficacy of PTRA in the whole study population (87.3%), comparable with results from other centers [15,17] . The 9-month restenosis rate (32.1%) after PTRA is also consistent with other reports [15,20] .…”

“…In the case of ostial lesions, outcomes are worse; procedural efficacy is only 10-40% [18] , or according to other authors 57-62% [17] , with the 6-month restenosis rate reaching 25-50% [19] . Some authors report the restenosis rate even as high as 80%, which may be associated with suboptimal dilation, possibility of dissection during the procedure and elastic recoil of the vascular wall in response to balloon stretching [18] .…”

“…In patients with atherosclerotic RAS, procedural efficacy of PTRA is estimated at 72-92% [15,16] , while restenosis in 6-to 9-month follow-up is noted as often as in 10-30% of cases [16,17] . In the case of ostial lesions, outcomes are worse; procedural efficacy is only 10-40% [18] , or according to other authors 57-62% [17] , with the 6-month restenosis rate reaching 25-50% [19] .…”

Renal artery stenting with noninvasive duplex ultrasound follow‐up: 3‐year results from the RENAISSANCE renal stent trial

“…Surgical revascularization has proven to be an effective treatment, with acceptable long-term patency rates, but is hampered by significant morbidity and mortality, particularly in the elderly. Percutaneous transluminal renal angioplasty (PTRA) has been successful in reducing the morbidity and a mortality rate compared to surgical revascularization, but has poor technical success rates due to high rates of elastic recoil and dissection for typical ostial lesions, as well as high restenosis rates [1][2][3][4][5][6].…”

Long-term follow-up after renal artery stenting

“…Percutaneous transluminal angioplasty with stent implantation (PTRAS) or without a stent (PTRA) allows treatment with a high technical success rate [1][2][3][4][5][6]. However, the main drawback is still a substantial incidence of restenosis, although the literature provides controversial data ranging from 2% to 36% after 6-12 months [1,2,[4][5][6][7][8]. Early detection is important, because restenosis can cause symptom recurrence and may progress to kidney loss [9].…”