The corticotropin-releasing hormone stimulation test in patients with panic disorder

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Abstract
Eight patients with panic disorder had significantly lower ACTH and cortisol responses to corticotropin-releasing hormone and a significantly lower ratio of ACTH to cortisol response than 30 normal control subjects. These responses resemble those previously reported for depressed patients except that they occurred in the face of significantly elevated basal cortisol and ACTH levels. These results suggest that patients with panic disorder have an element of chronic hypercortisolemia, like depressed patients, but also a more acute perturbation in ACTH secretion, not previously seen in depressed patients.