Cooling Therapy Helps People Survive Cardiac Arrest
Local health systems are using a special cooling therapy that improves the chances of surviving cardiac arrest — which is more dangerous than a heart attack.
Posted — UpdatedWith a heart attack, a person feels chest pain or other related systems, but remains conscious. In cardiac arrest, the heart goes into sudden atrial fibrillation: it stops pumping blood to the brain, and the person is unconscious.
Cecelia Barbee, 43, of Raleigh, only remembers a severe thunderstorm the night she went into cardiac arrest in August 2007. She woke up to the sound of thunder, then went back to sleep.
When Wake EMS arrived, they shocked Barbee's heart back into rhythm, although she remained in a coma.
That moment held the greatest risk for Barbee's brain, as the low oxygen supply started brain injury, and that was also when paramedics began the cooling therapy, known as hypothermia, or "low heat."
Wake EMS, WakeMed and Rex Health Care began using the therapy in the fall of 2006.
"We've seen a pretty significant improvement both in resuscitation rate, in terms of the number of people who survive," Hinchey said, and "in neurological outcomes."
Barbee said she was confused and had trouble walking when she first came home.
She has recovered to the point where she can walk normally, however. Although her memory sometimes falters, relatives said Barbee has greatly improved.
Wake County EMS, WakeMed and Rex Health Care have been gathering data on the effectiveness of induced hypothermia. Although results will be released in a few months, early indications – including Barbee's case – are proof that the therapy is helping, Hinchey said.
Wake County was among the first in the country to implement the protocol for certain cardiac-arrest patients. UNC Hospitals had a strong role in developing the therapy, and Orange County has also implemented its use.
Additionally, Duke University Medical Center uses induced hypothermia for many cardiac-arrest patients, although Durham County EMS does not.
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