Medical News Today -- Boston Scientific Corporation (NYSE: BSX) announced long-term data from the Prevention of Sudden Cardiac Death II registry (PreSCD II). The results found that implantable cardioverter defibrillators (ICDs) were associated with a 44 percent reduction in all cause mortality (p=0.053) when implanted in patients following myocardial infarction (heart attack). The mortality reduction trend was also observed in high-risk patients with severely reduced heart function. Analysis of the data was presented by Professor Heinz Voller, M.D., Klinikum am See, Ruedersdorf, Germany at the annual European Society of Cardiology (ESC) Congress in Barcelona.