Journal of vascular surgery
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An endovascular-first approach is usually recommended in femoropopliteal occlusive disease. However, despite high technical success, plain old balloon angioplasty (POBA) is burdened with high restenosis rates. To reduce this phenomenon, local delivery of drugs has been proposed by way of drug-coated balloons (DCBs). Our goal was to review the evidence for the use of DCBs in the management of femoropopliteal disease and to determine whether it is associated with improved outcomes compared with POBA. ⋯ DCB angioplasty is an effective treatment associated with high procedural success. In a meta-analysis of industry-sponsored trials, it consistently reduced late lumen loss, binary restenosis, and target lesion revascularization compared with POBA alone in the treatment of femoropopliteal disease. Further independent, non-industry-sponsored RCTs are necessary to better delineate the role of DCBs in the treatment of infrainguinal occlusive disease.
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Arteriovenous fistulas for patients undergoing hemodialysis (HD) are at high risk of stenosis. Despite conventional balloon angioplasty (CBA), restenosis rates are high. The use of a drug-coated balloon (DCB) may offer an alternative to reduce restenosis. ⋯ DCB angioplasty appears to be a better and safe alternative to CBA in treating patients with HD stenosis in terms of 6- and 12-month primary patency. However, a larger trial is warranted to establish these findings.
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Quantification of carotid plaque morphology (geometry and tissue composition) may help stratify risk for future stroke and assess plaque progression or regression in response to medical risk factor modification. We assessed the feasibility and reliability of morphologic measurements of carotid plaques using computed tomography angiography (CTA) and determined the minimum detectable change in plaque features by this approach. ⋯ Carotid plaque geometry (total volume, diameter stenosis, and area stenosis) and tissue composition (calcium, LRNC, and IPH) are measured reliably from clinical CTA images using a semiautomatic image analysis program. The minimum change in plaque volume detectable is ∼4% if the same observer makes both measurements and ∼10% for different observers. Small changes in plaque composition can also be detected reliably. This approach can facilitate longitudinal studies for identifying high-risk plaque features and for quantifying plaque progression or regression after treatment.
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Multicenter Study
iTalian RegIstry of doUble inner branch stent graft for arch PatHology (the TRIUmPH Registry).
The objective of this study was to assess early and midterm results after endovascular aortic arch repair using a double inner branch stent graft (DIBSG) in patients with aortic arch aneurysm or dissection unfit for open surgery. ⋯ Endovascular aortic arch repair using this model of DIBSG is feasible, and results are acceptable for a new technique in a high-risk subset of patients. Operative mortality suffers the effect of a learning curve, whereas midterm aorta-related survival is promising. Endovascular repair of aortic arch disease with a DIBSG should always be considered to give high-risk patients a chance of repair. Large-scale studies are needed to assess the long-term durability of this technique.
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Failure of thoracic endovascular aortic repair (TEVAR) in chronic aortic dissections can be partially explained by retrograde false lumen (FL) flow through distal re-entry tears. After implantation of a thoracic stent graft, FL thrombosis occurs in less than 50% of the cases. The objectives of this study were to describe the feasibility and outcomes of FL embolization in patients with chronic aortic dissections. ⋯ Embolization of the FL of chronic aortic dissections is technically feasible with a low morbidity rate. The FL thrombosis is observed in the majority of case and promotes favorable thoracic aortic remodeling. Longer follow-up is needed to confirm these good results on the thoracic aorta and this technique may, therefore, improve the results of TEVAR in chronic aortic dissections.