Hello Guest, Welcome to Apnea Board !
As a guest, you are limited to certain areas of the board and there are some features you can't use.
To post a message, you must create a free account using a valid email address.

or Create an Account


New Posts   Today's Posts

[Diagnosis] FYI: OSA, Criteria for Diagnosis
#1
FYI: OSA, Criteria for Diagnosis
to provide some clarity to AB readers
from Clinical Guideline for the Evaluation, Management and Long-term Care of Obstructive Sleep Apnea in Adults

Quote:Obstructive sleep apnea (OSA) is a common disorder affecting at least 2% to 4% of the adult population and is increasingly recognized by the public. The signs, symptoms and consequences of OSA are a direct result of the derangements that occur due to repetitive collapse of the upper airway: sleep fragmentation, hypoxemia, hypercapnia, marked swings in intrathoracic pressure, and increased sympathetic activity. Clinically, OSA is defined by the occurrence of daytime sleepiness, loud snoring, witnessed breathing interruptions, or awakenings due to gasping or choking in the presence of at least 5 obstructive respiratory events (apneas, hypopneas or respiratory effort related arousals) per hour of sleep. The presence of 15 or more obstructive respiratory events per hour of sleep in the absence of sleep related symptoms is also sufficient for the diagnosis of OSA due to the greater association of this severity of obstruction with important consequences such as increased cardiovascular disease risk.1
[url=https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2699173/#B1][/url]
Gideon - Project Manager and Lead Tester for OSCAR - Open Source CPAP Analysis Reporter

Download OSCAR
New to Apnea? Helpful tips to ensure success
Soft Cervical Collar
Mask Primer
Dealing with a DME
Organize Charts
Optimizing Therapy
Post Reply Post Reply






Donate to Apnea Board  
#2
RE: FYI: OSA, Criteria for Diagnosis
I'd like to point out that the 2-4% prevalence is a very outdated figure - latest study I saw estimated 1 billion people when only looking at people 30-69 (3 billion people fall in that age range iirc).

The clinical guidelines have this more comprehensive OSA definition further below that I prefer since its more inclusive of UARS symptoms (fatigue & insomnia): 

Quote:The diagnosis of OSA is confirmed if the number of obstructive events (apneas, hypopneas + respiratory event related arousals) on PSG is greater than 15 events/hr or greater than 5/hour in a patient who reports any of the following: unintentional sleep episodes during wakefulness; daytime sleepiness; unrefreshing sleep; fatigue; insomnia; waking up breath holding, gasping, or choking; or the bed partner describing loud snoring, breathing interruptions, or both during the patient's sleep.1 OSA severity is defined as mild for RDI ≥ 5 and < 15, moderate for RDI ≥ 15 and ≤ 30, and severe for RDI > 30/hr (Consensus).
Post Reply Post Reply


Possibly Related Threads...
Thread Author Replies Views Last Post
  [Diagnosis] Cant get a concrete diagnosis Benjy505 33 534 12-21-2020, 04:23 PM
Last Post: happydreams
  [Diagnosis] Sleep test interpretation help (Questioning my diagnosis...) cpapneas 14 356 12-09-2020, 07:00 PM
Last Post: Sleeprider
  Have compliance criteria for Medicare reimbursement changed? fredkahan 9 309 11-09-2020, 10:57 PM
Last Post: Elgeeone
  [CPAP] Self Diagnosis and stumbling in the dark Strawman 23 748 10-02-2020, 12:01 PM
Last Post: Canuck 2
  [Diagnosis] New diagnosis, in shock Silverwitch 55 2,791 06-04-2020, 11:06 AM
Last Post: Silverwitch
  New diagnosis, 3 weeks with CPAP encourage 35 1,882 11-19-2019, 06:15 PM
Last Post: encourage
  [Treatment] I doubt my diagnosis. jato 17 1,224 06-23-2019, 01:12 AM
Last Post: ajack


New Posts   Today's Posts






About Apnea Board

Apnea Board is an educational web site designed to empower Sleep Apnea patients.