1. When Heartbeats Go Haywire: New Treatments Can Save Lives
A ventricular tachycardia can degenerate into ventricular fibrillation, which is an extremely rapid, chaotic rhythm that starts in the ventricles and causes the heart to quiver. The most common type of ventricular arrhythmia in both healthy and...
http://www.fda.gov/fdac/features/1997/397_hart.html

2. Palpitations
Another less common cause of palpitations is a type of abnormal heartbeats called premature beats, PVCs (premature ventricular contractions), or ectopic beats. Your health care provider may prescribe medicine to take either at the time the...
http://www.temple.edu/heart/html/palpitations.html

3. Adult Congenital Heart Association
The Adult Congenital Heart Association (ACHA) is a nonprofit organization which seeks to improve the quality of life and extend the lives of adults with congenital heart defects. Through education, outreach, advocacy and promotion of research,...
http://www.achaheart.org/