Shingles affects the nerves. Shingles is caused by the varicella-zoster virus â the same virus that causes chickenpox. Anyone who's had chickenpox may develop shingles. After you recover from chickenpox, the virus can enter your nervous system and lie dormant for years.
Heart ablation, or cardiac ablation, is a surgical procedure that is used to correct abnormal heart rhythms. Catheter tubes are used to correct structural heart problems that prevent normal heart rhythms. Malfunctioning heart tissue is scarred or destroyed.
Heart Failure Glossary. Click on the term to listen to the correct pronounciation and definition. Ablation. A surgical procedure that completely removes abnormal or dead tissues and creates scar tissue.