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by Keyword: Lung over stretch


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Almendros, I., Gutierrez, P. T., Closa, D., Navajas, D., Farre, R., (2008). One-lung overventilation does not induce inflammation in the normally ventilated contralateral lung Respiratory Physiology & Neurobiology , 162, (1), 100-102

The aim was to assess whether induction of ventilator-induced lung injury (VILI) in one lung triggers a concomitant inflammatory response in the normally ventilated contralateral lung. To this end, a differential ventilator was used in 6 rats. One lung was normally ventilated (3.5 ml/kg b.w.) and the contralateral lung was overstretched (15 ml/kg b.w.). Six control rats were normally ventilated (3.5 ml/kg b.w. each lung). After 3h, edema and gene expression of MIP-2 in the lung, and plasma and liver TNF-alpha were assessed. Overexpression of MIP-2 and edema were found in the overventilated lung but not in the normally ventilated contralateral lung. No detectable levels of circulating and liver TNF-alpha were detected. These data do not support the hypothesis of an early positive feedback in the lung inflammation during the mechanical ventilation.

Keywords: Mechanical ventilation, Lung injury, Lung edema, Lung over stretch, High volume ventilation, Differential ventilation