Archives of surgery (Chicago, Ill. : 1960)
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OBJECTIVE To investigate the relationship between oxygenation and short-term outcomes in patients with traumatic brain injury (TBI). DESIGN Logistic regression analysis was used to determine whether average high (>200 mm Hg) or low (<100 mm Hg) PaO2 levels within the first 24 hours of hospital admission correlated with patient outcomes relative to patients with average PaO2 levels between 100 and 200 mm Hg. SETTING Level 1 trauma center. ⋯ Although the mechanism for this has not been completely elucidated, it may involve hyperoxia-induced oxygen-free radical toxicity with or without vasoconstriction. Hyperoxia and hypoxia were found to be equally detrimental to short-term outcomes in patients with TBI. A narrower therapeutic window for oxygenation may improve mortality and functional outcomes.
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Comparative Study
Assessment of radiofrequency device sensitivity for the detection of retained surgical sponges in patients with morbid obesity.
Retained surgical sponges are serious medical errors that result in negative patient outcomes. A radiofrequency (RF) mat for the operating room bed has recently been introduced to detect the presence of a retained surgical sponge. The study objectives were to evaluate the sensitivity and specificity of the RF mat for the detection of surgical sponges through the torso of individuals with varying body habitus and to compare the sensitivity of the RF mat with that of the RF wand. We hypothesized that the sensitivity and specificity of the RF technology would be comparable to published findings of the manual sponge count by operating room personnel. ⋯ The sensitivity and specificity of RF device technology are much higher than those of surgical sponge counts or published findings on the use of intraoperative radiographs to identify retained surgical sponges. The RF wand is more sensitive than the RF mat in individuals with morbid obesity.