title: Ibuprofen reduces the progression of permeability edema in an animal model of hyperdynamic sepsis.
abstract: Since severity of acute lung injury (ALI) is reduced by pretreatment with non-steroidal agents, we hypothesized that ibuprofen would ameliorate ALI when administered after the onset of septic lung injury. Twenty-four hours after cecal ligation and perforation (CLP) in 23 sheep during a 4 h study period (period S), pulmonary lymph flow (QL) increased 16.2 +/- 12.1 ml/min (P less than 0.01) from base line, whereas lymph-to-plasma total protein concentration ratios ([L/P]TP) remained unchanged. During the subsequent 24 h of study (period D), 10 sheep received parenteral ibuprofen, 12.5 mg/kg every 6 h, and 13 sheep served as untreated septic controls. Throughout period D, a progressive increase in QL (16.2 +/- 16.3 ml/60 min) from period S was greater in the untreated than in the ibuprofen (2.5 +/- 9.0 ml/60 min, P less than 0.02) group. Between base line and period D, increase in lung wet-to-dry weight ratios was greater in the untreated group than in the ibuprofen group (P less than 0.05). Concurrently mean pulmonary arterial pressure increased 4.7 +/- 7.3 mmHg in the untreated group (P less than 0.05) during period D vs. 0.0 +/- 5.2 mmHg in the ibuprofen group (NS). When administered after septic ALI had been established by CLP, ibuprofen reduced an otherwise progressive increase in both fluid flux and extravascular lung water.
authors.affiliation: Richard Ivey Critical Care Trauma Centre, Victoria Hospital, London, Ontario, Canada.
authors.forename: A G
authors.initials: AG
authors.lastname: Gnidec
authors.forename: W J
authors.initials: WJ
authors.lastname: Sibbald
authors.forename: H
authors.initials: H
authors.lastname: Cheung
authors.forename: C A
authors.initials: CA
authors.lastname: Metz
mesh_terms: D000818:Animals; D001424:Bacterial Infections / Q000150:complications / Q000188:drug therapy / Q000503:physiopathology; D004195:Disease Models, Animal; D006439:Hemodynamics / Q000187:drug effects; D006976:Hypertension, Pulmonary / Q000209:etiology / Q000503:physiopathology / Q000517:prevention & control; D007052:Ibuprofen / Q000627:therapeutic use*; D010538:Peritonitis / Q000150:complications / Q000188:drug therapy* / Q000503:physiopathology; D011652:Pulmonary Circulation / Q000187:drug effects; D012128:Respiratory Distress Syndrome / Q000209:etiology / Q000503:physiopathology / Q000517:prevention & control*; D012756:Sheep; D014882:Water-Electrolyte Balance / Q000187:drug effects
chemical_list: D007052:Ibuprofen