Table 4. (continued)

ARDS = acute respiratory distress syndrome; CABG = coronary artery bypass graft; CHF = congestive heart failure; CI = cardiac index; CVC = central venous catheterization; Do²= oxygen diffusion; EBL = estimated blood loss; ICU = intensive care unit; LVP = left ventricular pressure; Obs = observational; PA = pulmonary artery; PAC = pulmonary artery catheterization; Prosp = prospective; RCT = randomized clinical trial; Retrosp = retrospective; Svo²= mixed venous oxygen saturation.