The Significance and Challenges of Monocyte Impairment: For the Ill Patient and the Surgeon
2016
Abstract Background: Trauma, major elective surgery, and overt sepsis can lead to a cascade of immunological change. A subset of these patients will have a degree of immune suppression that leads to hyporesponsive innate defenses, increasing the risk of infective co-morbidity and death. This article is an overview of monocyte impairment in the high-risk surgical patient. Specifically, our primary focus is on observations made pertaining to monocyte function and pathophysiological mechanisms underpinning this impairment. Clinical factors influencing monocyte function are also discussed. Methods: A Pubmed search was conducted to review aspects of monocyte impairment in the surgical patient. Search terms included “monocyte impairment,” “immunoparalysis,” and “endotoxin tolerance” cross-referenced against terms including “trauma,” “major surgery,” and “sepsis.” Results: Findings revealed a broad variety of monocyte defects reported in surgical patients. They ranged from altered cytokine responses, particularl...
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