Zusammenfassung
Hypophysenadenome mit Mehrproduktion an Insulin-antagonisierenden Hormonen (z. B. Wachstumshormon, ACTH) führen zum klinischen Bild einer Akromegalie oder eines M. Cushing und gehen oft mit Insulinresistenz bis hin zum Diabetes mellitus einher. Die Gesamtprävalenz der Glukosestoffwechselstörungen bei Akromegalie liegt bei 54% der Patienten (gestörte Glukosetoleranz bei 16–46%, Diabetes bei 15,5%). Parallel treten auch atherogene Veränderungen im Lipidstoffwechsel auf. Ähnliche metabolische Veränderungen sind auch beim M. Cushing zu finden (gestörte Glukosetoleranz bei 30,6%, Diabetes bei 20–50% der Patienten). Diese Veränderungen tragen zu einem erhöhten kardiovaskulären Risiko bei, das vor allem bei M. Cushing über Jahre nach erfolgreicher Therapie fortbestehen kann.
Wichtig ist eine frühe Diagnose der hypophysären Erkrankung mit einem entsprechenden metabolischen Screening. Meistens stellt die erfolgreiche Behandlung der Grunderkrankung auch die Therapie der Glukosestoffwechselstörung dar. Bis zur effektiven Kontrolle der Hormonmehrproduktion stehen leitliniengerecht für die Behandlung des sekundären Diabetes Diät, Medikamente und Insulin zur Verfügung.
Abstract
Pituitary adenomas with excessive production of insulin-counteracting hormones (e.g. growth hormone, ACTH) emerge in the clinical picture of acromegaly or Cushing’s syndrome and often present with insulin resistance or even secondary diabetes. A total of 54% of patients with acromegaly show traits of an altered carbohydrate metabolism (impaired glucose tolerance in 16%–46%, diabetes in 15.5%). These changes are accompanied by atherogenic alterations of the lipid profile. Similar metabolic disturbances are encountered in patients with Cushing’s syndrome (impaired glucose tolerance in 30.6%, diabetes in 20%–50% of patients). These alterations lead to an increased cardiovascular risk, which persists years after effective cure of the underlying disease in the setting of Cushing’s syndrome.
These data outline the importance of an early diagnosis of the pituitary disease, accompanied by appropriate metabolic screening. Successful treatment of the underlying pituitary disease usually normalizes glucose metabolism. Until an effective hormonal control is achieved, secondary diabetes should be treated with diet, medication and/or insulin.
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Zimmermann, A., Weber, M. Hypophysenstörungen und sekundärer Diabetes mellitus. Diabetologe 6, 29–36 (2010). https://doi.org/10.1007/s11428-009-0438-5
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DOI: https://doi.org/10.1007/s11428-009-0438-5