PMID- 27782948 OWN - NLM STAT- MEDLINE DCOM- 20170710 LR - 20181202 IS - 1526-7598 (Electronic) IS - 0003-2999 (Linking) VI - 124 IP - 1 DP - 2017 Jan TI - Sevoflurane Abolishes Oxygenation Impairment in a Long-Term Rat Model of Acute Lung Injury. PG - 194-203 AB - BACKGROUND: Patients experiencing acute lung injury (ALI) often need mechanical ventilation for which sedation may be required. In such patients, usually the first choice an intravenously administered drug. However, growing evidence suggests that volatile anesthetics such as sevoflurane are a valuable alternative. In this study, we evaluate pulmonary and systemic effects of long-term (24-hour) sedation with sevoflurane compared with propofol in an in vivo animal model of ALI. METHODS: Adult male Wistar rats were subjected to ALI by intratracheal lipopolysaccharide (LPS) application, mechanically ventilated and sedated for varying intervals up to 24 hours with either sevoflurane or propofol. Vital parameters were monitored, and arterial blood gases were analyzed. Inflammation was assessed by the analysis of bronchoalveolar lavage fluid (BALF), cytokines (monocyte chemoattractant protein-1 [MCP-1], cytokine-induced neutrophil chemoattractant protein-1 [CINC-1], interleukin [IL-6], IL-12/12a, transforming growth factor-beta, and IL-10) in blood and lung tissue and inflammatory cells. The alveolocapillary barrier was indirectly assessed by wet-to-dry ratio, albumin, and total protein content in BALF. Results are presented as mean +/- standard deviation. RESULTS: After 9 hours of ventilation and sedation, oxygenation index was higher in the LPS/sevoflurane (LPS-S) than in the LPS/propofol group (LPS-P) and reached 400 +/- 67 versus 262 +/- 57 mm Hg after 24 hours (P < .001). Cell count in BALF in sevoflurane-treated animals was lower after 18 hours (P = .001) and 24 hours (P < .001) than in propofol controls. Peak values of CINC-1 and IL-6 in BALF were lower in LPS-S versus LPS-P animals (CINC-1: 2.7 +/- 0.7 vs 4.0 +/- 0.9 ng/mL; IL-6: 9.2 +/- 2.3 vs 18.9 +/- 7.1 pg/mL, both P < .001), whereas IL-10 and MCP-1 did not differ. Also messenger RNAs of CINC-1, IL-6, IL-12a, and IL-10 were significantly higher in LPS-P compared with LPS-S. MCP-1 and transforming growth factor-beta showed no differences. Wet-to-dry ratio was lower in LPS-S (5.4 +/- 0.2 vs 5.7 +/- 0.2, P = .016). Total protein in BALF did not differ between P-LPS and S-LPS groups. CONCLUSIONS: Long-term sedation with sevoflurane compared with propofol improves oxygenation and attenuates the inflammatory response in LPS-induced ALI. Our findings suggest that sevoflurane may improve lung function when used for sedation in patients with ALI. FAU - Kellner, Patrick AU - Kellner P AD - From the *Institute of Anesthesiology, University Hospital Zurich, Zurich, Switzerland; and daggerInstitute of Physiology, Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland. FAU - Muller, Mattia AU - Muller M FAU - Piegeler, Tobias AU - Piegeler T FAU - Eugster, Philipp AU - Eugster P FAU - Booy, Christa AU - Booy C FAU - Schlapfer, Martin AU - Schlapfer M FAU - Beck-Schimmer, Beatrice AU - Beck-Schimmer B LA - eng PT - Comparative Study PT - Journal Article PL - United States TA - Anesth Analg JT - Anesthesia and analgesia JID - 1310650 RN - 0 (Anesthetics, Inhalation) RN - 0 (Anesthetics, Intravenous) RN - 0 (Anti-Inflammatory Agents) RN - 0 (Biomarkers) RN - 0 (Cytokines) RN - 0 (Inflammation Mediators) RN - 0 (Lipopolysaccharides) RN - 0 (Methyl Ethers) RN - 0 (lipopolysaccharide, E coli O55-B5) RN - 38LVP0K73A (Sevoflurane) RN - S88TT14065 (Oxygen) RN - YI7VU623SF (Propofol) SB - IM CIN - Anesth Analg. 2017 Jan;124(1):7-8. PMID: 27984307 MH - Acute Lung Injury/blood/chemically induced/physiopathology/*therapy MH - Anesthetics, Inhalation/*administration & dosage MH - Anesthetics, Intravenous/*administration & dosage MH - Animals MH - Anti-Inflammatory Agents/*administration & dosage MH - Biomarkers/blood MH - Blood-Air Barrier/drug effects/metabolism MH - Bronchoalveolar Lavage Fluid/chemistry MH - Capillary Permeability/drug effects MH - Cytokines/blood/genetics MH - Disease Models, Animal MH - Hemodynamics/drug effects MH - Inflammation Mediators/blood MH - Kidney/drug effects/physiopathology MH - Lipopolysaccharides MH - Lung/*drug effects/metabolism MH - Male MH - Methyl Ethers/*administration & dosage MH - Oxygen/*blood MH - Pneumonia/blood/chemically induced/physiopathology/*prevention & control MH - Propofol/*administration & dosage MH - Rats, Wistar MH - Respiration, Artificial MH - Sevoflurane MH - Time Factors EDAT- 2016/10/27 06:00 MHDA- 2017/07/14 06:00 CRDT- 2016/10/27 06:00 PHST- 2016/10/27 06:00 [pubmed] PHST- 2017/07/14 06:00 [medline] PHST- 2016/10/27 06:00 [entrez] AID - 10.1213/ANE.0000000000001530 [doi] PST - ppublish SO - Anesth Analg. 2017 Jan;124(1):194-203. doi: 10.1213/ANE.0000000000001530.