The Influence Of Patients' Nutritional Status On The Prevalence, Course And Treatment Outcomes Of Lower Limb Ischemia: An Overview Of Current Evidence
INTERNATIONAL ANGIOLOGY(2018)
Abstract
INTRODUCTION: The association of lower limb ischemia (LLI) with disturbances in nutritional status, in respect to over-or undernutrition, is still uncertain. The aim of this study was to present the current state of knowledge on this issue.EVIDENCE ACQUISITION: Systematic review of papers published between 2006 and 2018.EVIDENCE SYNTHESIS: The literature shows inconclusive evidence regarding the impact of nutritional status on the risk, course, prognosis and outcomes of conservative and invasive treatment of LLI. The majority of publications available demonstrate greater LLI prevalence in overweight and obese patients, a worse prognosis both in malnourished and severely obese patients, poorer outcomes of invasive treatment in underweight patients, and better results for endovascular and surgical treatment in patients with overweight and class I obesity, although without such a relationship for conservative therapy. Possible explanations linking nutritional status and LLI seem to be: the endocrine, paracrine, and autocrine activity of adipose tissue, a decrease in physical activity, and the effect of diet-dependent comorbidities, e.g. diabetes mellitus, hypertension and dyslipidemia.CONCLUSIONS: There is a growing body of evidence concerning an association between LLI and patients' nutritional status. A so-called "obesity paradox" or "BMI paradox" seems to exist among patients with LLI and mainly concerns outcomes of endovascular and surgical treatment. However, further studies are needed to evaluate the clinical importance of body composition, the distribution and endocrine activity of adipose tissue, and the effect of weight reduction and/or nutritional support in the LLI patient group.
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Key words
Nutritional status, Malnutrition, Overweight, Obesity, Treatment outcome, Epidemiology
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