6- Upper airway - OSA - OSA, Presentation, Aetiology Flashcards Preview

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Flashcards in 6- Upper airway - OSA - OSA, Presentation, Aetiology Deck (11):
1

2 things that may be confused with OSA

simple snoring - no impact on sleep pattern or daytime sleepiness

upper airway resistance syndrome - UARS - sleep disruption and daytime sleepiness, WITHOUT desaturations/apnoea

2

what is OSAHS

obstructive sleep apnoea hypopnea syndrome - sleep disruption and daytime sleepiness - WITH apnoa + desaturations

3

triad of presentation

snoring, choking during sleep, apnoea (can be witnessed)

4

consequences of OSA

daytime sleepiness, un-refreshed after sleep
impaired concentration
irritability
decreased libido

5

Adult features of OSA

increases witha ge, more common in MALES, OBESE
1 Sx - daytime sleepiness,
cog impairment and impaired concentration

6

Child features of OSA

2-5y = peak
M=F
failure to thrive, hyperactivity, developmental delay

7

different severity's for OSAHS

mild - 5-14 events/hr
mod - 15-30 events/hr
sev - >30 events/hr

8

physical mechanism behind OSA

no cartilagenous support for airway from nasopharynx to larynx - relies on muscle tone for patency

- muscle tone decreased in sleep

9

6 factors behind OSA

age, sex, obesity, social, FH, anatomical

10

What other 5 things can cause/worsen OSA

hypothyroidism, acromegaly
drugs - opioids hypnotics
chronic lung disease- worsens impact

11

how does sex affect risk? what about obesity? what about social history?

2-5x risk in men, decreased risk in post menopause women
obesity is the MAIN FACTOR - social - smoking and alcohol increase risk

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