Posts Tagged ‘coronary disease’

During CPR, More Chest Compressions Saves More Lives

Thursday, September 17th, 2009

When it comes to cardiopulmonary resuscitation (CPR) you’re better off doing less mouth-to-mouth and more chest compressions, according to a new study.

CPR consists of chest compressions and mouth-to-mouth resuscitation.  It is performed on people whose hearts have stopped beating.  Medical experts explain that mouth-to-mouth resuscitation moves oxygen into the lungs of someone who can’t breathe on his own, while chest compressions move blood carrying that oxygen to the heart and the brain.

This year some 800,000 Americans will have a new coronary attack according to the American Association for Critical Illness Insurance, the industry trade group.  The average age of a person having a first heart attack is 64 for men and 70 for women.

Researchers found that the odds that someone whose heart has stopped beating will survive goes up markedly when rescuers spend more time giving chest compressions.

The findings emphasize that the chest compressions you do on a loved one are one of the most important things that can be done, one of the authors of the study, said in a statement.  They shared the important information recognizing many are untrained or not confident giving mouth-to-mouth ventilation.  Evenn by themselves, chest compressions can make a difference, the medical researchers noted.

Canadian medical researchers examined CPR tracings in over 500 patients who suffered “out-of-hospital” cardiac arrest in the US and Canada.  There was roughly a 10 percent increase in the chance of survival for every 10 percent increase in amount of time that rescuers spend giving chest compressions they found.

Researchers found that the heart began pumping blood effectively on its own about 80 percent of the time when rescuers spent most of their time on chest compressions, compared to just shy of 60 percent of time when they spent most of their efforts on mouth-to-mouth resuscitation.

Similarly, about one in eight patients survived long enough to go home from the hospital when rescuers spent most of their time on mouth-to-mouth resuscitation, but that rate of survival doubled when rescuers spent most of their time on chest compressions. 

The study appears in the Journal of the American Heart Association, September 14, 2009.