Pulmonary blood pressure, not flow, is associated with net endothelin-1 production in the lungs of patients with congenital heart disease and normal pulmonary vascular resistance.

Fratz, S; Geiger, R; Kresse, H; Roemer, G; Hennig, M; Sebening, W; Hess, J

doi:10.1016/S0022

2003

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Titel:: Pulmonary blood pressure, not flow, is associated with net endothelin-1 production in the lungs of patients with congenital heart disease and normal pulmonary vascular resistance.
Dokumenttyp:: Journal Article
Autor(en):: Fratz, S; Geiger, R; Kresse, H; Roemer, G; Hennig, M; Sebening, W; Hess, J
Abstract:: OBJECTIVE: Endothelin-1 concentrations are increased in patients with increased mean pulmonary arterial pressure, pulmonary blood flow, and pulmonary vascular resistance. However, endothelin-1 concentrations have not been well characterized in patients with congenital heart disease and normal pulmonary vascular resistance. In particular, it is unclear whether pressure or flow is the key regulator of endothelin- 1 in this setting. We tested the hypothesis that pulmonary blood pressure and not flow is associated with net endothelin-1 production in patients with congenital heart disease and normal pulmonary vascular resistance. METHODS: With a commercially available immunoassay, we measured endothelin-1 concentrations in pulmonary arterial and pulmonary venous plasma of 56 consecutive patients with congenital heart disease and pulmonary vascular resistance less than 2 U. m(2) undergoing cardiac catheterization. We used multiple linear regression to analyze the effect of demographic and hemodynamic variables on pulmonary arterial and venous endothelin-1 concentrations and on the change of endothelin-1 concentration over the pulmonary vascular bed. RESULTS: Multiple linear regression revealed that of all the hemodynamic variables tested, mean pulmonary arterial pressure had the greatest effect on increasing the change of endothelin-1 concentration over the pulmonary vascular bed (P <.0001). Pulmonary blood flow did not have any effect on endothelin-1 concentrations or on the change of endothelin-1 concentration over the pulmonary vascular bed. CONCLUSIONS: This study shows that pulmonary blood pressure and not flow is associated with net endothelin-1 production in patients with congenital heart disease and normal pulmonary vascular resistance.
Zeitschriftentitel:: J Thorac Cardiovasc Surg
Jahr:: 2003
Band / Volume:: 126
Heft / Issue:: 6
Seitenangaben Beitrag:: 1724-9
Sprache:: eng
Volltext / DOI:: doi:10.1016/S0022
PubMed:: http://view.ncbi.nlm.nih.gov/pubmed/14688679
Print-ISSN:: 0022-5223
TUM Einrichtung:: Institut für Medizinische Statistik und Epidemiologie; Klinik für Kinderkardiologie und angeborene Herzfehler (Prof. Hess)
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mediaTUM Gesamtbestand Einrichtungen Schools TUM School of Medicine and Health Departments Clinical Medicine Lehr- und Forschungskooperationen mit den Kliniken und Instituten am Deutschen Herzzentrum Klinik für Kinderkardiologie und angeborene Herzfehler (DHM) (Prof. Ewert)2003

mediaTUM Gesamtbestand Einrichtungen Schools TUM School of Medicine and Health Departments Clinical Medicine Institut für KI und Informatik in der Medizin (Prof. Rückert)2003