New studies confirm chest compressions alone

“Two large-scale studies published in the Dec. 18 issue of the American Heart Association’s medical journal, Circulation, report that the chances of surviving cardiac arrest are no better – and may be worse – when bystanders perform mouth-to-mouth breathing than if they press on the chest without interruption. n part because of the hesitance of bystanders to initiate CPR, survival rates following out-of-hospital cardiac arrest have remained dismal and virtually unchanged despite several changes of the CPR guidelines over the past four decades. In the two latest studies, research groups from Sweden and Japan compared survival rates of cardiac arrest victims after bystanders used either traditional CPR with mouth-to-mouth breathing or Chest-Compression-Only CPR.

Both studies found no statistically significant difference in survival rates. The Swedish study, led by Katarina Bohm, RN, of the South General Hospital in Stockholm, analyzed outcomes of nearly 10,000 cases, while a team led by Taku Iwami, MD, at Japan’s National Cardiovascular Center in Suita, Japan, looked at the outcomes of 4,900 cases of witnessed out-of-hospital cardiac arrest. Robert Berg, MD, professor of pediatrics at the UA College of Medicine and a member of the Sarver Heart Center Resuscitation Research Group, co-authored the latter study.”


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