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

"Oronasal Masks Require a Higher Pressure than Nasal and Nasal Pillow Masks"
#1
"Oronasal Masks Require a Higher Pressure than Nasal and Nasal Pillow Masks"
We know this:

"Oronasal Masks Require a Higher Pressure than Nasal and Nasal Pillow Masks for the Treatment of Obstructive Sleep Apnea."

RESULTS:

Oronasal masks were used in 46%, nasal masks in 35% and nasal pillow masks in 19%. There was no difference according to mask type for baseline apnea-hypopnea index (AHI), body mass index (BMI), waist or neck circumference. CPAP level was higher for oronasal masks, 12 (10-15.5) cm H2O compared to nasal pillow masks, 11 (8-12.5) cm H2O and nasal masks, 10 (8-12) cm H2O, p < 0.0001 (Median [interquartile range]). Oronasal mask type, AHI, age, and BMI were independent predictors of a higher CPAP pressure (p < 0.0005, adjusted R(2) = 0.26.). For patients with CPAP ≥ 15 cm H2O, there was an odds ratio of 4.5 (95% CI 2.5-8.0) for having an oronasal compared to a nasal or nasal pillow mask. Residual median AHI was higher for oronasal masks (11.3 events/h) than for nasal masks (6.4 events/h) and nasal pillows (6.7 events/h), p < 0.001.

also:

"Choosing an Oronasal Mask to Deliver Continuous Positive Airway Pressure May Cause More Upper Airway Obstruction or Lead to Higher Continuous Positive Airway Pressure Requirements than a Nasal Mask in Some Patients: A Case Series."

RESULTS:

The 4 cases (mean ± SD: age = 59 ± 16 y; BMI = 30.5 ± 4.5 kg/m(2)) had a high residual apnoea-hypopnea index (AHI) (43 ± 14.2 events/h) and high CPAP pressure requirements (14.9 ± 6.6 cmH2O) with an oronasal mask. Changing to a nasal mask allowed adequate control of UAO with a significant reduction in the average residual AHI (3.1 ± 1.5 events/h). In two of the four cases, it was demonstrated that control of UAO was obtained at a much lower CPAP pressure compared to the oronasal mask (Case one = 17.5 cmH2O vs 12cmH2O; Case two = 17.9 cmH2O vs 7.8 cmH2O). Other potential confounding factors were unchanged. There are various physiological observations that may explain these findings but it is uncertain which individuals are susceptible to these mechanisms.
Post Reply Post Reply






Donate to Apnea Board  


Possibly Related Threads...
Thread Author Replies Views Last Post
  Pillow Positions/Left-Right Jeremy H 3 123 03-04-2021, 08:47 AM
Last Post: Sleeprider
  [split] Best Nasal Mask to Minimize Leaks Bernadette 12 350 03-03-2021, 05:45 AM
Last Post: tedgreen
  How do you use a buckwheat pillow to get the best results? Rcgop 15 490 03-02-2021, 10:15 AM
Last Post: DaveL
  Best U.S. suppliers for masks? newmar 10 246 03-01-2021, 11:58 PM
Last Post: newmar
  F10 vs F20 Full Face Masks Fixit50 22 6,031 03-01-2021, 09:18 PM
Last Post: Jamizer
  Best Nasal Pillow for Leaks and Proper Exhalation / Rebreathing at Low Pressures hoselife 6 319 03-01-2021, 08:58 AM
Last Post: Crimson Nape
  Activa Lt vs Resperonics dreamwear nasal mask chronic 4 105 02-28-2021, 10:48 AM
Last Post: chronic


New Posts   Today's Posts






About Apnea Board

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