IL-6 is elevated in patients with acute brain injury, and a significant relationship exits between the severity of acute brain injury and the transcranial IL-6 gradient at admission. It can be considered to be a prognosis marker at admission. When data at the moment of brain death are considered, venous IL-6 (p <.01) and the transcranial IL-6 gradient (p <.005) are significantly higher than at the time of admission. Although the IL-6 C allele is associated with significantly lower concentrations of IL-6, there was no correlation between low or high IL-6 responders and patient outcome.

Summary Percutaneous tracheostomy is used primarily to assist weaning from mechanical ventilation in the intensive care unit. We report our experiences of 800 such procedures performed in the intensive care unit by a collaborative team (critical care and ENT specialists). Most procedures (85.6%) were performed by residents supervised by the intensive care unit staff. Complications occurred in 32 patients (4%). Intraprocedural complications occurred in 17 patients (2.1%), early postprocedural complications in six (0.75%), and late postprocedural complications in nine (1.1%). No deaths were directly related to percutaneous tracheostomy. The incidence of complications was greater in percutaneous tracheostomy performed by the residents during their initial five attempts compared to their later attempts (9.2% vs 2.6%, p < 0.05). The low incidence of complications indicates that bedside percutaneous tracheostomy can be performed safely as a routine procedure in daily care of intensive care unit patients.

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Central venous-jugular bulb oxygen saturation rate below 1 together with accepted clinical criteria (unresponsive coma with brainstem areflexia) provides non-invasive assessment of cerebral circulatory arrest that can help to suspect brain death.

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The RQLT scale is a useful tool as an indicator of 30-day mortality in transplant patients.

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