Medical News Today -- Electrophysiologists Robert Stevenson, MD, and Jeffrey L. Williams, MD, MS, FACC, are safely implanting cardiac resynchronization therapy defibrillators in the Good Samaritan Hospital (GSH) Cardiology (Heart Failure) Program. These advanced defibrillators are used to treat sudden cardiac death, which is abrupt heart failure, usually due to an electrical rhythm dysfunction in the lower chambers of the heart that causes the heart to pump blood ineffectively. In addition, these devices have an additional implanted pacing lead that helps to resynchronize an abnormally pumping heart in an attempt to lessen heart failure symptoms for cardiology patients.