Selective decontamination of the digestive tract (SDD) is an infection prevention technique used in granulocytopenic patients, transplantation surgery, and critically ill intensive care patients. It is based on two observations: first, most infections are endogenous, i.e. they are caused by aerobic Gram-negative bacteria, Staphylococcus aureus, and yeast species carried in the oropharyngeal or intestinal flora; second, the indigenous, mostly anaerobic, flora has important physiological functions and is seldom the cause of infection, and therefore should be preserved as much as possible.

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Sleep Apnea

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