[Postoperative changes in free fatty acid levels in serum].

The serum free fatty acid levels were stuied under the influence of various operations. During surgery, the FFA level rose significantly in patients with arteriosclerosis and cholelithiasis, and also in obese ones, and decreased in hyperfunctional struma patients. Individual fatty acids too showed characteristic changes in these diseases. Under the influence of surgery, saturated fatty acid levels too rose significantly in arteriosclerotic patients.