The Netherlands journal of medicine
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Case Reports
Clinical and pharmacological aspects of accidental triamcinolone acetonide overdosage: a case study.
Local administration of corticosteroids for rheumatic diseases have had a long history of effective and well-tolerated use. We report here the pharmacodynamics and pharmacokinetics of an accidental triamcinolone acetonide (TCA) overdose. The presented patient was treated with 200 mg TCA and developed Cushing's syndrome 6 weeks later (cortisol and ACTH concentrations were below limits of detection, TCA concentrations were > 3 micrograms/l). ⋯ We conclude that after an accidental overdose in this patient, body TCA disappearance was strongly prolonged due to a very slow (absorption) half-life of the drug in comparison to a therapeutic dose. This finding is explained by a 'flap-flop phenomenon' where drug absorption is the rate-limiting step of overall drug disposition. Caution is, therefore, needed to prevent undesired accumulation of TCA that may lead to protracted Cushing's syndrome.
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Medical peri-operative consultation plays an important role in the practice of the internist. It represents 13-33% of the total consultation done by the internist. The value of preoperative consultation by the internist is still unclear and the place of the consultations is under discussion. ⋯ Our data show that (semi-) elective consultations by internists at the department of Surgery, on indication of the surgeon, changes the course of a significant percentage of patients. (See Editorials p. 1 and p. 4).