title: Critical level of oxygen delivery after cardiopulmonary bypass.
abstract: The relationship between oxygen uptake (Vo2) and delivery (Do2) was examined in 64 patients immediately after cardiopulmonary bypass. In 44 patients with lactate levels below 2.5 mmol/L, Vo2 decreased proportionally when Do2 decreased below 300 ml/min X m2. At a Do2 over this level, Vo2 plateaued at 105 +/- 13 (SD) ml/min X m2. In a contrasting group of 22 patients with blood lactate levels above 2.5 mmol/L, Vo2 changes depended on changes in Do2 both alone and below 300 ml/min X m2.
mesh_terms: D002315:Cardiopulmonary Bypass; D006801:Humans; D007773:Lactates / Q000097:blood; D008991:Monitoring, Physiologic; D010100:Oxygen / Q000008:administration & dosage / Q000097:blood*; D010101:Oxygen Consumption; D010106:Oxygenators; D012189:Retrospective Studies
chemical_list: D007773:Lactates; D010100:Oxygen