Urinary excretion of vanyl-mandelic acid correlated with ischemic heart disease.

The concentration of vanyl-mandelic acid is analysed in the urine collected within 24 hours from normal subjects, from those with painful ischemic cardiopathy, infarction and post-infarction sequelae. Statistically significant results have been obtained only in infarction patients. The study of the concentration of vanyl-mandelic acid by age decades points to the increase of average values throughout life.