2016
DOI: 10.1016/j.jvs.2015.10.090
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Renal duplex ultrasound findings in fenestrated endovascular aortic repair for juxtarenal aortic aneurysms

Abstract: Covered stent placement in nonstenotic renal arteries during FEVAR is safe and durable, with PSV and RAR remaining in the normal or <60% stenosis range in most patients. Increases in PSV or RAR that occur are not associated with clinically significant sequelae or in-stent stenosis on computed tomography angiography. DUS velocity criteria for stenosis in native renal arteries appear to overestimate the severity of stenosis in covered stents after FEVAR.

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Cited by 15 publications
(6 citation statements)
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References 40 publications
(46 reference statements)
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“…These less severe injuries had large intimal tears >10 mm and were classified as moderate grade by the Harborview grading scale. 13 Most patients (n ¼ 16, 80%) were treated with a CTAG device, with a median graft diameter Table I. Technical success was 100% (defined as complete coverage of intimal injury) with no cases requiring left subclavian artery coverage, although we often will not hesitate to cover the subclavian if the injury is immediately distal to the artery orifice.…”
Section: Resultsmentioning
confidence: 99%
“…These less severe injuries had large intimal tears >10 mm and were classified as moderate grade by the Harborview grading scale. 13 Most patients (n ¼ 16, 80%) were treated with a CTAG device, with a median graft diameter Table I. Technical success was 100% (defined as complete coverage of intimal injury) with no cases requiring left subclavian artery coverage, although we often will not hesitate to cover the subclavian if the injury is immediately distal to the artery orifice.…”
Section: Resultsmentioning
confidence: 99%
“…These findings are congruent with prior studies evaluating sensitivity for endoleak detection after standard EVAR as well as renovisceral stent patency. 18,19 DUS identified 4 cases of endoleak without aneurysm sac enlargement. These patients were followed and no longer had presence of endoleak at 3 month CTA, suggesting these may have been self limited type II endoleaks.…”
Section: Discussionmentioning
confidence: 99%
“…Prior studies have demonstrated standard duplex criteria for evaluation of native renal arteries may overestimate the degree of stenosis in renal artery stents after complex EVAR. 19 Revised criteria have been suggested; however, our study still used native renal artery duplex criteria to maintain a low threshold for detection and prompt further evaluation. 18 Weaknesses of this study include its retrospective nature and selection bias.…”
Section: Discussionmentioning
confidence: 99%
“…Many different markers, such as renal volume, stent angulation and stent stenosis, have been used to predict renal impairment. 4,6,7 Using a combination of these variables is not a reproducible method to assess renal impairment, despite being a complex and resource-intensive process.…”
Section: Introductionmentioning
confidence: 99%