Dysbiosis Across Multiple Body Sites in Critically Ill Adult Surgical Patients

Current evidence suggests that symbiosis of commensal microflora play a significant role in health and illness. The effect that commensal microflora play in critical care is less well known. Yeh et al set out to assess the dynamics of colonization of critically ill surgical and trauma patients. The authors examined 32 critically ill surgical and trauma patients in a major tertiary care intensive care unit (ICU) and collected information on bacterial colonization at gastrointestinal, tracheal, urinary, oral, and skin sites.

Over the course of the study (and in comparison to healthy controls) colonization in the ICU group showed a decrease in diversity of microflora across multiple sites and a change in colonization from non-pathogenic to pathogenic bacteria.

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