Cardiovascular resynchronisation treatment (CRT) is the inclusion of electrodes in the left and right ventricles of the heart, and as well as on occasion the right atrium, to treat heart failure by planning the capacity of the left and right ventricles. 

​

The addition of electrodes into the ventricles is done under local anaesthetic, with access to the ventricles most regularly through the subclavian vein, in spite of the fact that entrance might be given from the axillary or cephalic veins. Right ventricular access is immediate, while left ventricular access is given through the coronary sinus. 

​

CRT defibrillators (CRT-D) likewise join the extra capacity of an implantable cardioverter-defibrillator, to rapidly end a strangely quick, dangerous heart cadence.

 

CRT and CRT-D have turned out to be progressively essential remedial choices for patients with moderate and serious heart failure.