I’m often asked the question, “What’s the main difference between an automatic CPAP machine and a regular CPAP machine?”, so in this post I’ll lay out to explain the main differences.
First I’ll claim that I’ve always wondered why many people in the industry tend to call an automated CPAP machine something other than what exactly it is – an automated CPAP machine. You will often hear people call these kinds of machines APAP machines or Auto-PAP machines. I think this is caused by a misunderstanding of the acronym CPAP. CPAP stands for Continuous Positive Airway Pressure, indicating that air pressure will likely be delivered continuously through the sleeping cycle. The term CPAP, however, doesn’t imply that the continuously delivered air will likely be in a constant pressure. Therefore, the appropriate term to use for 睡眠窒息症 which automatically adjusts pressure setting in accordance with your preferences is automatic CPAP machine.
A CPAP machine is made to blow air using your partially obstructed airway to be able to eliminate the obstruction and to allow you to breathe normally. What many people call “regular” CPAP machines do that by blowing air in a constant pressure throughout the night, regardless of whether you’re experiencing an apnea – or cessation of breathing – or otherwise not.
An automatic CPAP machine fails to use a constant pressure. Rather, the device is designed to sense your breathing with the use of a pressure feedback device. When the machine senses you might be breathing well, the delivered pressure will likely be lower. On the contrary, once the machine senses you’re not breathing well – that is, when it senses an apnea, hypopnea or snoring – the delivered pressure will be higher.
Because most people with obstructive sleep apnea breathe normally for around some area of the night, it stands to reason which a constant pressure is normally unnecessary for effective CPAP therapy. Automatic CPAP machines deliver approximately 40% less pressure throughout the path of a night in contrast to a CPAP machine which delivers a constant pressure. This reduced pressure really helps to increase patient comfort and compliance and makes CPAP therapy more tolerable for new CPAP users.
If your prescribed pressure setting is relatively low – under 10 cm H2O – the primary advantage of a computerized CPAP machine might not be the reduced average pressure, but it may simply be that you don’t have to worry about adjusting your pressure setting later on. An automatic CPAP machine virtually guarantees you will be getting optimal CPAP therapy no matter changes in your problem.
Similar to most CPAP machines, automatic CPAP machines are created to deliver air pressure between 4 cm H2O and 20 cm H2O. Throughout the initial setup of the machine the minimum and maximum pressures is going to be set. Usually the default setting of 4 cm H2O because the minimum pressure and 20 cm H2O as the maximum pressure can be used. However, in case your prescribed pressure setting is well above 10 cm H2O then increasing the minimum pressure may make sense. I would personally almost always recommend making use of the default minimum and maximum pressure settings as these settings will allow for the maximum average pressure reduction as well as the highest level of patient comfort.
Yet another excellent benefit of automatic CPAP machines is that they’re really two machines in a single. You have a CPAP machine which adjusts pressure automatically, and you obtain a machine which is often set to provide a continuing pressure just like a regular CPAP machine. This flexibility in functionality is attractive to many CPAP users, especially to individuals who are using CPAP equipment the very first time.
There are 2 types of apnea – central and obstructive. Central sleep apnea occurs due to a dysfunction within the thalamus part of the brain, while obstructive apnea occurs as a result of an obstructed airway. CPAP machines are designed to open the airway for patients who suffer from obstructive apnea, but CPAP machines could have no effect on pazbvl sleep apnea. Some automatic CPAP machines like the Puritan Bennett 420E can detect apneas which occur with and without cardiac osciallations to prevent enhancing the pressure during central apnea events wherein the airway has already been open. Similarly, advanced 呼吸機 could also differentiate between central and obstructive hypopnea (which is described as shallow breathing).
Below is a breakdown of the advantages of utilizing an automatic CPAP machine:
Approximately 40% overall reduction in delivered pressure
No reason to be worried about adjusting a continuing pressure as your condition changes
Flexibility – the machine can be set to automatic mode or constant mode
Some automatic machines detect the real difference between obstructive apneas/hypopneas and central apneas/hypopneas.