| abstract |
An improved apparatus and method for evaluating, tuning and operating a physiologic stimulator such as an implantable pacemaker or defibrillator. In one exemplary embodiment, an impedance cardiography system is used to measure one or more cardiac functions such as stroke volume or mitral regurgitation as the parameters determining the operation of the pacemaker are varied, such as via a non-invasive pacemaker programming device. After a plurality of the parameters have been programmed in and corresponding measurements of stroke volume or mitral regurgitation obtained, the data is evaluated to determine one or more optimized parameter values. |