O218 Comparison of 4-year outcomes following percutaneous or surgical coronary artery revascularization procedures in patients with diabetes
Michael NguyenJamie RankinMatthew KnuimanLee NedkoffTom BriffaMark NewmanDon CutlipElizabeth GeelhoedMichael HobbsFrank Sanfilippo
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Critical limb ischemia
An increasing spectrum of complex peripheral arterial disease may be successfully treated using percutaneous revascularization techniques. A pair of challenging peripheral revascularization procedures in patients with critical limb ischemia is presented, where an array of interventional tools and techniques were required, and the off-label use of the Boomerang catalyst system closure device was important in managing a variety of complex arterial access issues and ultimately allowing procedural success.
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Critical limb ischemia
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Critical limb ischemia (CLI) is the most advanced stage of peripheral arterial disease (PAD). Its prognosis is poor, with high rates of limb amputation and cardiovascular mortality. The international guidelines consider limb revascularization as the first line of the treatment strategy for CLI. However, despite the progress of revascularization techniques, many patients with CLI are still considered not suitable for these procedures and treated with conservative limb treatments. We have consulted the most important guidelines on PAD and CLI published over the past two decades focusing on the epidemiology, treatment, and outcomes of CLI patients not suitable for revascularization. Our review shows that only the TASC guidelines report 25% of CLI patients conservatively treated. Regarding the treatments, all the guidelines agree that the conservative treatment is based on the best medical management of cardiovascular risk factors associated with pain drugs and wound management. Other treatments such as prostanoids, spinal cord stimulation, vasodilators, or angiogenic therapies have shown uncertain positive outcomes in reducing limb amputation and mortality. In conclusion, this work outlines the scarce consideration that the guidelines have had about these patients over the past two decades. However, this review tries to draw the main novelties and possible future treatments for the better management of this group of patients still resident in the “dark side” of the CLI.
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Background:Patients with thromboangiitis obliterans (TAO) can develop critical limb-threatening ischemia (CLTI) and require limb amputation. Smoking cessation and exercise therapy are recommended as standard treatments, and revascularization by bypass surgery or endovascular therapy (EVT) is required for patients with CLTI. However, there are many cases in which revascularization is difficult because of vascular characteristics, and the patency rate after revascularization remains unsatisfactory. Therapeutic angiogenesis using bone marrow-derived mononuclear cell (BM-MNC) implantation is used clinically, with many trials demonstrating long-term efficacy and safety of the technique in patients with CLTI, especially that caused by TAO. To expand the use of BM-MNCs implantation in clinical practice, further evidence is required in patients with CLTI caused by TAO.
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Arteriosclerosis obliterans
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Limb ischemia
Anterior tibial artery
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Arterial insufficiency
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Univariate analysis
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Critical limb ischemia (CLI) represents the most severe clinical manifestation of peripheral arterial disease. In the absence of timely revascularization, CLI carries high risk of mortality and amputation. Over the past decade, endovascular revascularization has rapidly become the preferred primary treatment strategy for CLI, especially for the treatment of below-the-knee disease. Advances in percutaneous devices and techniques have expanded the spectrum of patients with CLI who are deemed candidates for revascularization. This review will focus on advances in endovascular options for the treatment of CLI, in particular for below-the-knee disease. (Circ J 2011; 75: 756-765)
Critical limb ischemia
Limb ischemia
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