fibrillation
Fibrillation refers to fast, uncoordinated contractions of individual heart muscle fibers. When fibrillation occurs, the heart chamber involved can't contract all at once and pumps blood ineffectively, if at all.
Find out what is happening at your local American Heart area
Fibrillation refers to fast, uncoordinated contractions of individual heart muscle fibers. When fibrillation occurs, the heart chamber involved can't contract all at once and pumps blood ineffectively, if at all.
This site complies with the HONcode standard for trustworthy health information: 
verify here.