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For patients suffering from bradycardia because of lack of oxygen during sleep apnea episodes, the CPAP (Continuous Positive Airway Pressure) machine can stop the episodes.Patients wear a mask hooked to a machine that supplies oxygen and opens the airways. The amount of oxygen supplied varies by the user's needs.
Bradycardia can be caused by: 1  Changes in the heart that are the result of aging.  Diseases that damage the heart's electrical system. These include coronary artery disease, heart attack, and infections such as endocarditis and myocarditis.