This will normalize once. treatment pressure is achieved. Depending upon the treatment pressure used for. your therapy, you might be instructed to peri-. odically breathe air from a facemask inside the. chamber. This provides an additional protection. against oxygen toxicity.
When to See a Doctor. If you have frequent bouts of chest pain, heart palpitations or irregular heartbeats, shortness of breath or fainting, you should see your doctor right away as sudden cardiac arrest requires emergency treatment. If these symptoms are ongoing, call 9-1-1 immediately.ââ.
One cause of sudden cardiac arrest is a heart attack. Sometimes, people who are having heart attack have a complication of sudden cardiac death if they don't get to the hospital soon enough, Goldberg said. Yet most heart attacks do not lead to sudden arrest, according to the American Heart Association.