Is lung Tissue Volume Elevated in Obesity and Reduced by Bariatric Surgery?
Vtiss is elevated in morbidly obese subjects, compared to lean individuals of similar body height, and is systematically reduced by BS. These effects do not appear related to vascular changes but may be caused by elevated extravascular lung water, due to low-grade inflammation, and/or hypertrophic PVAT in severe obesity.
BMI did not have a significant impact on mortality in this mixed population of ICU patients.