[Hemodynamics in heart failure: systolic and diastolic dysfunction].
Cardiac insufficiency is hemodynamically characterised by reduced cardiac output and increased diastolic filling pressure at rest and/or during physical activity. The increase in diastolic filling pressure compensates cardiac output and is either a result of increased initial tension of muscle fibers (Frank-Starling's Law) or a sign of decreased myocardial compliance. Increased initial tension of muscle fibers is a sign of systolic insufficiency, whereas reduced ventricular compliance indicates a disorder of diastolic ventricular function. In systolic insufficiency (= systolic dysfunction) a decrease in the ventricular ejection fraction is important, as is an increase in filling pressure. In diastolic congestive heart failure (= diastolic dysfunction) a reduced ventricular compliance with normal stroke function is typical.
Hess
O M
OM
Departement für Innere Medizin, Kardiologie, Universitätspital Zürich.
D003971:Diastole / Q000502:physiology; D006325:Heart Atria / Q000503:physiopathology; D006333:Heart Failure / Q000503:physiopathology*; D006352:Heart Ventricles / Q000503:physiopathology; D006439:Hemodynamics / Q000502:physiology*; D006801:Humans; D013318:Stroke Volume / Q000502:physiology; D013599:Systole / Q000502:physiology
Hämodynamik bei Herzinsuffizienz: systolische und diastolische Dysfunktion.