Left ventricular function ' s relation to load , experimental studies in a porcine model . Roman A ’ roch

Left ventricular function's relation to load, experimental studies in a porcine model. Abstract 4 ABSTRACT Background: Loading conditions are recognized to influence ventricular function according to the Starling relationship for length/stretch and force. Many modern echocardio-graphic parameters which have been announced as describing ventricular function and contractile status, may be confounded by uncontrolled and unmeasured load. These studies aimed to measure the relation between four different types of assessments of ventricular dysfunction and degrees of load. Study I examined the 'myocardial performance index' (MPI). Study II examined long axis segmental mechanical dyssynchrony. Study III examined tissue velocities, and Study IV examined ventricular twist. All studies aimed to describe the relation of these parameters both to load and to inotropic changes.