My husband, was seen by a cardiologist that found his heart enlarged Then saw a specialist that said he needed a biventricular pacemaker with defibrillator. The pacemaker will help the two lower chambers of his heart, the ventricles that are not pumping in unison-needs to work together. A biventricular pacemaker helps the ventricles to contract more efficiently. (By the way, he is just 45 years old). The defibrillator is more than anything is just in case he needs it. He had this done last week. When he came out of surgery, it surprised me how great he looked. Mark had so much more color than before. Right now, he is still sore and unable to hold his left army up but otherwise is doing great. With the medicine and the pacemaker he has lost over 20 lbs, which was mainly fluid and his lungs are clearing up. It still going to be a long road but am so thankful this is working so well for him now. Right now, he is not able to work but hopefully the doctor will allow him to return to work doing mostly check and service calls with a helper (He is a Heating & Air Technician). Again, thank you for all your prayers and well wishes.