Cardiac Resynchronization Therapy (CRT)
Millions of people worldwide suffer from congestive heart failure (CHF), a serious and common problem that is often due to weak pumping of the heart muscle. Poor heart pumping function can cause fatigue, leg swelling, trouble exercising, and difficulty breathing. Lifestyle changes, medications, and heart surgery can sometimes help with symptoms, but because many people with CHF also have an arrhythmia, or heart rhythm problem, they need even more help to keep their hearts functioning properly.
Credit: Heart Rhythm Society