The present invention relates to implantable medical devices and methods, and more particularly to an implantable antitachycardia device, e.g., {HEAD ~ an antitachycardia pacemaker} or defibrillator cardioverter, that automatically adjusts its detection rate threshold as {TAIL ~ a function} of the sensed cardiac rate 
The present invention relates to implantable medical devices and methods , and more particularly to an implantable antitachycardia device , e.g. , { HEAD ~ an antitachycardia pacemaker } or defibrillator cardioverter , that automatically adjusts its detection rate threshold as { TAIL ~ a function } of the sensed cardiac rate
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH