Normally, you can expect the following during a cardiac resynchronization therapy -

  • You are made to lie on the procedure table, medications may be given into your vein to help you relax.
  • A local anesthetic will be applied on your skin usually just under your left collar bone (clavicle) to produce numbness in the area.
  • Your healthcare provider will make an incision and create a pocket under the skin and this pocket will hold the wires and computer battery pack for the CRT.
  • Your doctor will insert CRT leads (wires) into a major vein and guide it to your heart with the help of X-ray images.
  • Your doctor will test the leads with an electric pulse.
  • If the leads are in the right place and working then they will be attached to CRT pacemaker.
  • Your doctor will put the CRT pacemaker through the incision and under your skin.
  • The incision is closed with sutures or staples and dressing is applied.

Reference - Cardiac Resynchronization Therapy. (n.d.). Retrieved from