Briefly, values representative of ventricular end-diastolic volume (EDV) are detected using ventricular electrodes and then heart failure, if occurring within the patient, is evaluated based on ventricular EDV. In this manner, ventricular EDV is used as a proxy for ventricular end-diastolic pressure....http://www.google.ca/patents/US7505814?utm_source=gb-gplus-sharePatent US7505814 - System and method for evaluating heart failure based on ventricular end-diastolic volume using an implantable medical device
