patiwat writes "A Japanese study detailed in the New York Times has found that people suffering from cardiac arrest were more likely to recover without brain damage if rescuers focused on chest compressions rather than on rescue breaths. Some experts advised dropping the mouth-to-mouth part of CPR altogether. Interrupting chest compression to perform mouth-to-mouth ventilation might do more harm than good if blood flow to the heart was not properly re-established, a researcher from Tokyo's Surugadai Nihon University Hospital said. According to the article, 'More than 300,000 Americans die from cardiac arrest each year. Roughly 9 out of 10 cardiac arrest victims die before they get to a hospital — partly because they do not get CPR.'"