A heart failure device, also called a CRT device, treats certain types of heart failure. When the heart’s lower chambers (ventricles) pump or contract in an uncoordinated way, it is called dyssynchrony. The CRT device treats dyssynchrony. CRT stands for cardiac resynchronization therapy. It gets its name because the device helps “resynchronize, “or re-coordinate, the pumping of the ventricles.
There are two types of CRT devices, CRT-P and CRT-D
CRT-P is a special kind of pacemaker. A pacemaker sends tiny amounts of energy to prompt the heart to beat at a normal rate. This treatment is also known as pacing therapy.
CRT-D is a device that offers the same type of pacing therapy as a CRT-P device, but it also has a built-in implantable cardioverter defibrillator (ICD).