Most arrhythmias result from problems in the electrical system of the heart. If your arrhythmia is serious, you may need a cardiac pacemaker or an implantable cardioverter defibrillator (ICD). They are devices that are implanted in your chest or abdomen. A pacemaker helps control abnormal heart rhythms. It uses electrical pulses to prompt the heart to beat at a normal rate.
Steven Berlin Johnson (born June 6, 1968) is an American popular science author and media theorist.
David Ramsey (I) David Ramsey stars as former United States Army Special Forces soldier, John Diggle, on the CW's People's Choice Award winning show Arrow, based on the DC Comics superhero. Created by Greg Berlanti, Marc Guggenheim and Andrew Kreisberg, Arrow follows presumed-dead billionaire playboy Oliver Queen (Stephen Amell), who returns home to Starling ...