When you think of who might need to wear a pacemaker, your mind may go to an elderly person with heart failure or someone who's survived a heart attack. But living with a heart condition can mean ...

Dear Doctor Roach: What’s the difference between a pacemaker and a defibrillator? -- T.S.B. Answer: Both are implantable devices to treat electrical problems of the heart. A pacemaker is a much older ...