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