Do ICDs treat all rhythm disturbances?
No. Implantable cardioverter defibrillators are intended to treat very serious rhythm problems that can arise in the lower portion of the heart, called the ventricles. In the future, ICDs will be available that can be used for patients with other rhythm problems. Good heart rhythm control often can be achieved with medication alone. If your symptoms worsen or if the problem is persistent or potentially dangerous, your doctor may perform an electrophysiology (EP) study to learn more about the rhythm and the best treatments to deal with it. In some cases, an electrophysiologist may not need a study if the problem and its solutions are clear. If an ICD is one of the solutions, your doctor will know and discuss it with you.