- MIXED SLEEP APNEA - more common than you know
Sleep Apnea Guide
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Central Sleep Apnea
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Mixed apnea or complex sleep apnea, is a combination between obstructive apnea and central apnea. It starts typically with central apnea episodes for about 10 seconds, followed by obstructive apnea events. The cause of mixed sleep apnea is uncertain, but it can appear when the airway closes during a central sleep apnea episode. Scientists believe that most people with obstructive sleep apnea has some abnormality in the breathing reflex. After a long pause in breathing in your sleep, the blood oxygen level will be low. You will have gasps and other breathing efforts to recover your oxygen level.
From this breathing effort results an unusually low level of carbon dioxide in the blood, which may trigger a central apnea event. The harder the event of obstructive sleep apnea, the more likely is expected a central apnea event to appear. In this situation, we have mixed apnea. It's obvious that when you treat obstructive apnea, the "overbreathing" event will disapear. Central apnea is less likely to appear in this situation, so mixed apnea event will disappear.
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