Changes of the mechanical properties of the lungs following abdominal surgery

The mechanical properties of the lung (elasticity, laminar and turbulent resistance) were measured in 14 patients one day before and after abdominal surgery. A special measuring instrument was made for this purpose. The comparison of the conditions before and after operation showed that elasticity and turbulent resistance do not change significantly, but the value of laminar resistance showed an increase caused by the qualitative change of the lung tissue.