Your heart is a combination electrical and mechanical system. Irregular heart rhythms, or arrhythmias, are electrical problems and include a heartbeat that maybe too fast or too slow or an even. Arrhythmias can be completely harmless and simply related to stress or a more serious problem that can cause passing out spells called syncope or even sudden cardiac death. Advances in treating rhythm disorders include the use of radiofrequency ablation and specialized pacemakers and defibrillators. PHVG has three specialists in electrical disorders that are available to you, if required. Consultations are available at the and offices.