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
  Dreamwear Gel Pillow - exhaust slot noise BoyrauchS 7 2,209 10-10-2019, 10:20 AM
Last Post: ericcarden72
  Pressure Settings using Nasal and Full-face mask Wcwilson 9 327 10-08-2019, 04:21 PM
Last Post: Wcwilson
  CPAP masks and TMJ? Zhaylin 8 898 10-08-2019, 04:57 AM
Last Post: apesee
  Do These Trigger an Event? [Apnea higher with machine than without] markgrant 22 497 10-07-2019, 09:24 PM
Last Post: markgrant
  Are there any extra large pillows masks? ragtopcircus 12 246 10-07-2019, 08:53 PM
Last Post: ragtopcircus
  DreamWear Nasal - Left nostril issue Thelgow 0 127 10-02-2019, 09:34 AM
Last Post: Thelgow
  Help for a new "very tired' CPAP user: questions about nasal masks (resmed) italyhound 11 433 09-18-2019, 12:08 PM
Last Post: PaulB


New Posts   Today's Posts






About Apnea Board

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