41 resultados para Fractional Calculus Operators

em BORIS: Bern Open Repository and Information System - Berna - Suiça


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In autologous cell therapy, e.g. in melanocyte transplantation for vitiligo, a minimally invasive mode of transepidermal delivery of the isolated cells is of crucial importance to reduce potential side effects such as infections and scarring as well as to minimize the duration of sick leave.

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The preferred initial treatment for patients with stable coronary artery disease is the best available medical therapy. We hypothesized that in patients with functionally significant stenoses, as determined by measurement of fractional flow reserve (FFR), percutaneous coronary intervention (PCI) plus the best available medical therapy would be superior to the best available medical therapy alone.

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Patients with significant coronary artery stenoses are at increased risk of future cardiac events. However, in the absence of acute coronary syndrome or recent myocardial infarction and residual ischemia, elective percutaneous coronary intervention has not been shown to improve prognosis. Possible explanations for this might be the limited follow-up time adopted by most randomized trials comparing percutaneous coronary intervention with medical therapy, limited number of patients with proven ischemia enrolled in these trials, and adoption of complex, elaborate techniques that have not proved their usefulness. Published evidence identifies certain indications for percutaneous coronary intervention in patients with stable coronary lesions: demonstration of significant inducible ischemia, particularly in the context of a recent myocardial infarction; detection of unequivocally reduced fractional flow reserve; and specific angiographic features of coronary stenoses. Operators should take into account long-term consequences of adopted techniques rather than immediate angiographic results. We review existing evidence and provide our recommendations in this setting.

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