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Abstract
The reasons our critically ill patients die have been a matter of great interest for many decades, with the hope that if we can identify the mechanisms responsible for death, we might be able to intervene and improve outcome. Over the last 1 to 2 decades, the concept of bacterial translocation--the movement of gut origin microbes across the intact gastrointestinal tract into normally sterile tissues where the organisms may then directly cause infection or incite an inflammatory response that causes tissue injury, organ failure, and death--has grown to the point where it is virtually impossible to make rounds in any intensive care setting without a resident or student blaming some complication or another on bacterial translocation. We will attempt to review the clinically relevant information that supports and refutes the concept of bacterial translocation as a cause of our critically ill patients to exhibit the symptoms and signs of sepsis, develop organ failure, and ultimately die.