Oxygen and Wound Infection

A few studies suggested that using high oxygen  concentrations during and after surgery lowered surgical site infection rate. The World Health Organization has recommended FiO2 of 0.8 during and for many hours after surgery to help reduce wound infection. This is totally at odds with the increasing evidence of harm from hyperoxia and many anesthesiologists are reducing oxygen concentrations during surgery (apart from potential difficult airways). The WHO position seems simplistic and reductionist and a critique of their recommendation is found  here

 

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