The effect of elective surgery on 3-methylhistidine excretion

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Abstract
Elective surgical operation in normally nourished patients is associated with an increase of up to 40 per cent in the urinary excretion of 3-methylhistidine during the first three postoperative days. This increase was statistically significant (P<0.01) on the second and third postoperative days. This probably represents a minor degree of increased muscle proteolysis, principally due to the operative trauma. The possible effect of postoperative starvation requires further elucidation.