Linksherzversagen; Rechtsherzversagen; Pulmonalarterielle Hypertonie; Kardiogener Schock; Diastolische Dysfunktion; Low-cardiacoutput Syndrom; Anästhesie; Left heart failure; Right heart failure; Pulmonary arterial hypertension; Cardiogenic shock; Diastolic dysfunction; Low-cardiac output syndrome; Anesthesia