Central Venous O2 Linked to Postop Complications
Further studies testing ScvO2 as a predictive marker are warranted
FRIDAY, Nov. 17 (HealthDay News) -- Low central venous oxygen saturation (ScvO2) during high-risk surgery is linked to postoperative complications, according to a report published Nov. 13 online in the peer-reviewed open access journal Critical Care.
Hendrik Bracht, M.D., of the University Hospital Bern in Switzerland, and colleagues determined preoperative and postoperative ScvO2 in 60 patients undergoing intra-abdominal surgery lasting longer than 90 minutes to determine its relationship to length of hospital stay, mortality and postoperative complications.
The authors documented a total of 67 postoperative complications in 32 patients. Predictors of complications were mean ScvO2 values (odds ratio, 1.23), length of hospital stay (OR, 0.75) and simplified acute physiology score (OR, 0.9). A cut-off value of 73 percent ScvO2 predicted complications with a sensitivity of 72 percent and specificity of 61 percent.
"Despite the relative heterogeneity of the patient population, ScvO2 had a reasonable predictive value for postoperative complications," the authors write. "In prospective trials using central venous oxygen saturation as a goal, the specific patient group has to be taken into account when target levels are defined."