Patent ID: 9026207
Filing Date: 2015-05-05
Classification: A61B,A61N

Abstract:
1. An implantable medical device including a pulse generator adapted to produce cardiac stimulating pacing pulses, said device being connectable to at least one medical lead comprising electrodes for delivering said pulses to cardiac tissue of a heart of a patient, comprising: an impedance measuring unit, connectable to at least two electrodes of said at least one medical lead, configured to measure an impedance of said patient and to provide impedance information corresponding to said measured impedance; a cardiogenic impedance determining unit configured to receive said impedance information and to determine cardiogenic impedance data from said impedance information; a respiration impedance determining unit configured to receive said impedance information and to determine respiratory impedance data from said respiratory impedance information; a calculation unit configured to determine at least one hemodynamic measure using said cardiogenic impedance data and at least one apnea measure using said respiratory impedance data; and a correlating unit configured to calculate an atrial fibrillation prediction value as a function of a correlation between said hemodynamic and apnea measures, the correlation constituting a relationship, over a time period, between a development of said hemodynamic and apnea measures.