Usefulness of Hemodynamic Sensors for Physiologic Cardiac Pacing in Heart Failure Patients

Figure 1

Peak Endocardial Acceleration (PEA) sensor (Sorin Group, Italy). An accelerometer mounted on the tip of a pacing lead placed in the right ventricle detects PEA-I, related to the isovolumic contraction (and the first cardiac tone) and PEA-II, related to the isovolumic relaxation (and the second cardiac tone).