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Obstructive sleep apnoea Flashcards

(8 cards)

1
Q

What causes obstructive sleep apnoea

A

collapse of the pharyngeal airway

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2
Q

Risk factors for obstructive sleep apnoea

A
  • obesity
  • male
  • hypothyroidism
  • smoking
  • acromegaly
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3
Q

What symptoms might a partner of someone with obstructive sleep apnoea report?

A

Excessive snoring and periods of apnoea (not breathing)

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4
Q

Presenting features of obstructive sleep apnoea

A
  • episodes of apnoea
  • snoring
  • excessive daytime sleepiness
  • waking up unrefreshed from sleep
  • restless sleep
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5
Q

What are the consequences of obstructive sleep apnoea

A
  • compensated respiratory acidosis
  • hypertension
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6
Q

How is sleepiness assessed in patients with obstructive sleep apnoea?

A

Epworth Sleepiness Scale - questionnaire completed by patient +/- partner

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7
Q

What diagnostic tests are used to diagnose obstructive sleep apnoea?

A

Sleep studies (polysomnography):
* simple - pulse oximetry monitoring at night
* respiratory polygraphy - can be done at home
* complex - polysomnography measuring EEG, respiratory airflow, EMG, ECG, and pulse oximetry.

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8
Q

How is obstructive sleep apnoea managed

A
  • weight loss
  • Continuous positive airway pressure (CPAP)
  • excessive daytime sleepiness - inform DVLA
  • CPAP intolerant - intra-oral devices (mandibular advancement)
  • above not tolerated = surgery (uvulopalatopharyngoplasty)
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