Sleep apnea syndrome

Sleep apnea syndrome (sleep apnea syndrome, SAS) refers to those who have stopped the mouth or nasal airflow for more than 10s and no more than 30 times within 7 hours of night sleep. Common causes are nasal septum deflection, nasal polyps, nasopharyngeal adenoidal hypertrophy, megatonia, tonsillary hypertrophy, mandibular deformity, chronic obstructive pulmonary disease, pulmonary heart disease, obesity and drowsiness syndrome, acromegaly, myxedema , Plateau erythrocytosis, drug-induced respiratory depression, poliomyelitis, etc. Apnea can be divided into the central type (the chest and abdominal muscles do not breathe), the obstructed type (the chest and abdominal muscles do their best to breathe), and the mixed type (the chest and abdominal muscles begin to breathlessly, and then appear and gradually strengthen). Involuntary breathing.

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