PHAR3817 Lecture 11: Sleep Apnoea
22 Jul 2018
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Document Summary
Sleep disorders are a significant and very serious public health issue. It is estimated that 1. 5 million australians suffer from sleep disorders, and costs to the community have been calculated at. Common sleep disorders include sleep apnoea, insomnia and sleep loss and restless legs syndrome. Sleep apnoea - cessation of breathing whilst one is asleep. Two types: obstructive sleep apnea (osa) and central sleep apnea (csa). It is estimated that only 20% of affected individuals have been diagnosed or treated. Different phases of sleep: metabolism, heart rate and respiratory is lowered as well as hypoxia response. Apnoea: closed pharyngeal muscle not full waking up but subconscious. Normally we breathe in and air rush in the pharynx to open. We use intercostal muscle instead to force it to open and sometimes stomach muscles as well. Issues of space" in the upper airway: anatomy, infection, tumours, obesity. Issues of function : ua muscle control, genetic, respiration control.
