Patent ID: 8380308
Filing Date: 2013-02-19
Classification: A61B,A61N

Abstract:
1. A method for use with an implantable cardiac stimulation device equipped with a left ventricular (LV) lead having at least one proximal electrode implanted near an atrioventricular (AV) groove of the heart of the patient, the method comprising: sensing a left atrial (LA) cardioelectrical event using the proximal electrode of the LV lead; detecting a corresponding LA cardiomechanical event in response to the sensed cardioelectrical event utilizing at least one of echocardiography, sonocardiography and impedance cardiography, wherein the LA cardiomechanical event corresponds to one or more of: i) completion of an atrial kick, ii) closure of a mitral valve, and iii) onset, peak and/or completion of an A-wave of a mitral valve annulus; determining an LA electromechanical delay between the LA cardioelectrical event and the LA cardiomechanical event; determining pacing delays based on the LA electromechanical delay for use in delivering pacing using the lead; and controlling pacing using the pacing delays.