No one really gets it. The blood contains a great deal of bio available oxygen. what we do not have is an independent method of moving cells back and forth. That can only be done through varying the blood pressure and that is wonderfully done with chest compressions. It is not done by blowing air into the mouth.
When a person collapses on the street, it is time to jump into action. Make sure someone is calling 911 as no one is able to last long applying CPR. Then check for a heart beat or a breath. If these are missing, apply chest compressions immediately.
You are saving a life and yes, this is the most important intervention.
I figured this all out ten years ago when my life was so saved. I was alone in understanding why I was alive. Now best practice does drop the need to do mouth to mouth. It only took a decade or so.
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The Earlier The Better – Bystanders Save Lives With CPR For Cardiac Arrest
Released:
16-Jul-2015 2:00 PM EDT
http://www.newswise.com/articles/view/637240/?sc=dwhn
Newswise — Sudden cardiac arrest kills an estimated 200,000 people a
year in the United States, but many of those lives could be saved if
ordinary bystanders simply performed CPR, a new study led by Duke
Medicine shows.
The early application of cardio-pulmonary
resuscitation (CPR) by an average person nearby, combined with
defibrillation by firefighters or police before the arrival of emergency
medical services (EMS), was the one intervention that substantially
increased survival from cardiac arrest, according to findings reported
by Duke researchers and colleagues in the July 21 issue of the Journal of the American Medical Association.
“We
were surprised to learn that survival increased only for those who
received bystander-initiated CPR, compared with those who did not
receive bystander-initiated CPR,” said lead author Carolina Malta
Hansen, M.D., of the Duke Clinical Research Institute. “Also, patients
who received bystander or first-responder CPR and defibrillation were
more likely to survive compared to those who received CPR and
defibrillation once EMS arrived. This suggests that the very earliest
intervention is crucial, and is something anyone can do. It saves
lives.”
Hansen and colleagues analyzed data from 4,961 cardiac
arrest cases in 11 North Carolina counties from 2010-13. The data was
gathered through a national registry set up to track cardiac arrests
that occur outside of hospitals. The registry includes information about
the responses of bystanders, first responders (firefighters, police
officers, lifeguards and others on the scene ahead of the ambulance),
and EMS. It also tracks how well people fared.
The four-year time
frame coincided with a North Carolina campaign to encourage bystanders
to perform chest-compression CPR -- no need for mouth-to-mouth
resuscitation -- and to use an automated external defibrillator while
awaiting an ambulance.
The campaign, called The HeartRescue
Project, also worked to improve the use of portable defibrillators,
which are increasingly available in public places and can be used by
laypeople and first-responders to shock a heart back into rhythm.
Among
the North Carolina counties included in the Duke study, survival with
good neurologic recovery improved by 37 percent over those four years.
The
project included public training programs in defibrillators and
compression-only CPR at schools, hospitals and major events such as the
N.C. State Fair, plus additional instruction for EMS and other emergency
workers on optimal care for patients in cardiac arrest.
During
the time covered in the study, Hansen said, 86.3 percent of patients
received CPR before EMS arrived, with 45.7 percent initiated by
bystanders and 40.6 percent by first-responders. Throughout the study
period, a significant increase occurred in the proportion of patients
receiving bystander-initiated CPR, from 39.3 percent in 2010 to 49.4
percent in 2013.
The proportion of patients who received
bystander-initiated CPR and who also were defibrillated by
first-responders increased from 14.1 percent in 2010, to 23.1 percent in
2013. Bystander CPR coupled with a first responder applying
defibrillation was associated with improved patient survival compared to
situations where patients waited to receive EMS-initiated CPR and
defibrillation.
Of 1,648 defibrillated patients, 53.9 percent were
defibrillated before arrival of the EMS – 6.9 percent by bystanders and
47 percent by first-responders. First-responder defibrillation
increased significantly from 40.9 percent in 2010 52.1 percent in 2013.
“During
the past decade, there has been a focus on increasing bystander CPR,”
said senior author Christopher Granger, M.D., a professor of cardiology
and director of the Cardiac Care Unit
at Duke University Medical Center.
“Our findings show that survival can be improved by
strengthening first-responder programs and encouraging more bystander
CPR,” Granger said. “This program shows that state and national programs
to improve care of cardiac arrest, with a focus on the community and
emergency medical response, can save more lives.”
In addition to
Hansen and Granger, study authors from Duke include Kristian Kragholm;
Clark Tyson; Lisa Monk; Matthew E. Dupre; Emil L. Fosbøl; James G.
Jollis; Benjamin Strauss; and Monique L. Anderson; along with David A.
Pearson of Carolinas Medical Center; Brent Myers of Wake County EMS;
Darrell Nelson of Wake Forest University; and Bryan McNally of Emory
University.
The study received support from The HeartRescue Project, which is funded by Medtronic Philanthropy.
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