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Vitamin D status and its influence on outcomes following major burn injury and critical illness 被引量:6
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作者 khaled al-tarrah Martin Hewison +1 位作者 Naiem Moiemen Janet M.Lord 《Burns & Trauma》 2018年第2期82-92,共11页
Vitamin D deficiency is common among the general population. It is also observed in up to 76% of critically ill patients.Despite the high prevalence of hypovitaminosis D in critical illness, vitamin D is often overloo... Vitamin D deficiency is common among the general population. It is also observed in up to 76% of critically ill patients.Despite the high prevalence of hypovitaminosis D in critical illness, vitamin D is often overlooked by medical staff as the clinical implications and consequences of vitamin D deficiency in acute contexts remain to be fully understood.Vitamin D has a broad range of pleotropic effects on various processes and systems including the immuneinflammatory response. 1α,25-dihydroxyvitamin D (1,25(OH)2D), has been shown to promote a tolerogenic immune response limiting deleterious inflammatory effects, modulation of the innate immune system, and enhancement of anti-microbial peptides. Vitamin D deficiency is frequently observed in critically ill patients and has been related to extrinsic causes (i.e., limited sunlight exposure), magnitude of injury/illness, or the treatment started by medical doctors including fluid resuscitation. Low levels of vitamin D in critically ill patients have been associated with sepsis, organ failure, and mortality. Despite this, there are subpopulations of critical illness, such as burn patients, where the literature regarding vitamin D status and its influence on outcomes remain insufficient. Thermal injury results in damage to both burned and non-burned tissues, as well as induces an exaggerated and persistent immune-inflammatory and hypermetabolic response. In this review, we propose potential mechanisms in which burn injury affects the vitamin D status and summarizes current literature investigating the influence of vitamin D status on outcomes. In addition, wereviewed the literature and trials investigating vitamin D supplementation in critically ill patients and discuss the therapeutic potential of vitamin D supplementation in burn and critically ill patients. We also highlight current limitations of studies that have investigated vitamin D status and supplementation in critical illness. Thermal injury influences vitamin D status. More studies investigating vitamin D depletion in burn patients and its influence on prognosis, via standardized methodology, are required to reach definitive conclusions and influence clinical practice. 展开更多
关键词 VITAMIN D Critical care BURNS TRAUMA Thermal INJURY Critically ILL
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