Zusammenfassung
Akute endokrine Störungen, wie z. B. die thyreotoxische Krise oder primäre Nebennierenrinden(NNR)-Störungen, führen relativ selten zu manifesten Organdysfunktionen und bedürfen daher nur in Einzelfällen einer Therapie auf der Intensivstation. Im Gegensatz dazu sind jedoch Veränderungen der endokrinen und metabolischen Regulation, die als Folge verschiedener extraendokriner Grunderkrankungen bei kritisch kranken Patienten entstehen, auch im Rahmen der postoperativen Betreuung herzchirurgischer Patienten häufig zu beobachten. In den letzten Jahren rücken diese Erkrankungen zunehmend in den Brennpunkt von Wissenschaft und Klinik, da v. a. der Stressdiabetes und das Low-T3-Syndrom als klinisch relevanteste Endokrinopathien kritisch Kranker deren Prognose entscheidend mitbestimmen. Da jedoch metabolische Veränderungen im Rahmen schwerer Erkrankungen oder Trauma, z. B. das Low-T3-Syndrom, auch als sinnvolle Adaptation an kritische Erkrankungen zur Begrenzung des Hyperkatabolismus gewertet werden können, stellt sich immer die Frage nach der Sinnhaftigkeit einer therapeutischen Intervention. Vor dem Hintergrund der Komplexität dieser Thematik werden im Folgenden v. a. der Stressdiabetes und das Low-T3-Phänomen unter Berücksichtigung der aktuellen Studienlage und verfügbarer Leitlinien diskutiert.
Abstract
Critical illness is characterized by important endocrine and metabolic changes with increased lipolysis, proteolysis and gluconeogenesis, which redirect energy consumption toward those processes that mediate acute survival. The initial „adaptive“ neuroendocrine response to critical illness consists primarily of activated anterior pituitary function. Hyperglycemia as well as low thyroid hormone levels can frequently be observed and have been identified as independent predictors of mortality; however, the precise pathophysiological role of the low T3 syndrome is not well understood and the common belief is in favor of an adaptive mechanism to preserve energy. Therefore, an endocrine intervention to improve outcome is questionable and the debate about optimal blood sugar levels on the intensive care unit (ICU) continue to highlight only two of many controversies that remain in this area. Therefore, this review addresses the most commonly observed endocrine dysfunctions after cardiothoracic surgery including diabetes, thyroid abnormalities as well as the issues of corticosteroid replacement and pharmacological applications in this setting.
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K. Pilarczyk, R. Martini, M. von der Brelie und N. Haake geben an, dass kein Interessenkonflikt besteht.
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Pilarczyk, K., Martini, R., von der Brelie, M. et al. Störungen des Endokriniums auf der herzchirurgischen Intensivstation. Z Herz- Thorax- Gefäßchir 29, 321–329 (2015). https://doi.org/10.1007/s00398-015-0027-4
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DOI: https://doi.org/10.1007/s00398-015-0027-4