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- S Steiner and B E Strauer.
- Klinik für Kardiologie, Pneumologie und Angiologie, Universitätsklinikum Düsseldorf, Moorenstrasse 5, 40225, Düsseldorf, Deutschland. steinest@uni-duesseldorf.de
- Internist (Berl). 2009 Sep 1;50(9):1054, 1056-8, 1060, passim.
AbstractThe thin-walled right heart is characterized by a low mass-volume-relation. Right ventricular function is influenced basically by loading conditions (afterload and preload), myocardial perfusion, contractility and heart rate. Afterload is determined by intrathoracal and pulmonary vascular pressure/resistance. Morphologic adaptions of the right ventricle affect right ventricular function in cor pulmonale. So the normal, not hypertrophied right ventricle is extremely sensitive to increasing pulmonary artery pressure. Otherwise, minor reductions in afterload lead to a substantial decrease of right ventricular wall stress, myocardial oxygen demand and likely the risk of arrhythmia. Therefore clinical consequences and complications of pulmonary hypertension are substantially dependent on right ventricular dynamics.
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