An Implantable heart stimulating device, a system including such a device and use of the system

摘要

The invention concerns an implantable bi-ventricular heart stimulating device (10) including a control circuit (14) arranged to, within a time cycle, deliver pacing pules with both a first (18) and a second (19) pacing means with a time gap (V-V) between a pacing pulse delivered by these pacing means. The time gap (V-V) can be such that a pacing pulse delivered by the second pacing means (19) at least substantially falls within a first time interval (ER1) in which an evoked response can be expected to a pacing pulse delivered by said first pacing means (18). The control circuit (14) is arranged to perform a temporary modification of the operation of the device such that during at least one time cycle no pacing pulse is delivered by said second pacing means (19) during said first time interval (ER1). The invention also concerns a system including such a device (10) as well as a use of this system.