Acute intermittent porphyria associated with hyperaldosteronism and inappropriate antidiuretic hormone secretion.

Acute intermittent porphyria, the most commun acute porphyria in France, is an autosomal dominant disorder of heme biosynthesis. The basic biochemical defect is reduced activity of the enzyme porphobilinogen deaminase. Clinical evolution is characterized by acute attacks, with a severe prognosis due to acute abdominal pain and risk of neurological complications, induced by drug intake, infection, alcohol intake or unknown factors. We report the vase of a patient with an inappropriate antidiuretic secretion syndrome and secondary hyperaldosteronism associated with acute intermittent porphyria and polyradiculoneuritis syndrome. This syndrome was found to be induced a delayed reaction to thiopental. A favorable response was achieved with heme-arginate treatment.