Zusammenfassung
Die pulmonale Hypertonie im Rahmen interstitieller Lungenerkrankungen (ILE) hat eine hohe Prävalenz von 30–40%. Sie wird häufig nicht erkannt und kann auch bereits ohne fortgeschrittene Lungenfunktionseinschränkung oder Hypoxie auftreten. Die pulmonale Hypertonie verschlechtert die Prognose einer ILE deutlich. Es gibt eine Reihe gemeinsamer pathogenetischer Mechanismen zwischen parenchymalem und vaskulärem Umbau (Remodeling) wie oxidativer Stress, Zytokinfreisetzung und das Endothelinsystem. Daneben spielen die hypoxische Vasokonstriktion und Destruktion von Gefäßen bei progredienter Fibrosierung eine wesentliche Rolle. Wegen der oft unspezifischen oder fehlenden klinischen Symptomatik helfen Echokardiographie, radiologische Verfahren und Laborparameter wie das NT-proBNP bei der Diagnosestellung, wobei die definitive Diagnose einer pulmonalen Hypertonie nach wie vor durch die Rechtsherzkatheteruntersuchung gestellt wird. Die Therapie der pulmonalen Hypertonie bei ILE ist limitiert und besteht aus der Therapie der Grundkrankheit sowie supportiven Maßnahmen. Neue vasodilatierende Medikamente könnten zukünftig zur Verbesserung der Prognose beitragen. Die Lungen- bzw. Herz-Lungen-Transplantation stellt eine Therapieoption im Endstadium dar.
Abstract
The prevalence of pulmonary hypertension in interstitial lung disease (ILD) is high (30–40%). However, diagnosis of pulmonary hypertension in ILD is often delayed. Pulmonary hypertension can occur in the absence of advanced pulmonary dysfunction or severe hypoxia and is associated with a worse prognosis. A number of pathogenic mechanisms such as oxidative stress, cytokines, and the endothelin system have been implicated in remodeling of both the lung parenchyma and the vessels. In addition, hypoxic vasoconstriction, vascular destruction and progressive fibrosis play an important role. Since clinical signs are often non-specific echocardiography, radiology and laboratory parameters such as NT-proBNP may be helpful. However, the definitive diagnosis of pulmonary hypertension is still confirmed by right heart catheterization. Treatment options of pulmonary hypertension in ILD are limited to the treatment of the underlying diseases. Newer vasodilating drugs may improve the prognosis but have first to be evaluated in clinical trials. Lung or lung and heart transplantation is the therapeutic option in end stage disease.
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Hauber, H. Interstitielle Lungenerkrankungen und pulmonale Hypertonie. Internist 50, 1072–1079 (2009). https://doi.org/10.1007/s00108-009-2339-5
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DOI: https://doi.org/10.1007/s00108-009-2339-5