I’m often asked the question, “What’s the real difference between an automated CPAP machine and a regular CPAP machine?”, so in the following paragraphs I’ll set out to explain the key differences.
First I’ll state that I’ve always wondered why many people in the industry often call an automatic CPAP machine something besides what exactly it is – an 氧氣機. You will sometimes hear people call these types of machines APAP machines or Auto-PAP machines. I believe this is a result of a misunderstanding from the acronym CPAP. CPAP is short for Continuous Positive Airway Pressure, indicating that air pressure is going to be delivered continuously throughout the sleeping cycle. The word CPAP, however, doesn’t imply that the continuously delivered air is going to be in a constant pressure. Therefore, the proper term for a CPAP machine which automatically adjusts pressure setting according to your preferences is automatic CPAP machine.
A CPAP machine is designed to blow air via your partially obstructed airway in order to get rid of the obstruction and to enable you to breathe normally. What lots of people call “regular” CPAP machines do that by blowing air in a constant pressure through the night, regardless of whether you’re experiencing an apnea – or cessation of breathing – or otherwise.
An automated CPAP machine will not use a constant pressure. Rather, the machine is made to sense your breathing by using a pressure feedback device. Once the machine senses you might be breathing well, the delivered pressure will likely be lower. On the other hand, once the machine senses you’re not breathing well – that is, if it senses an apnea, hypopnea or snoring – the delivered pressure will likely be higher.
Because most individuals with sleep apnea breathe normally for about some portion of the night, it stands to reason which a constant pressure is generally unnecessary for effective CPAP therapy. Automatic CPAP machines deliver approximately 40% less pressure throughout the course 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 first time CPAP users.
In case your prescribed pressure setting is fairly low – under 10 cm H2O – the primary benefit from an automatic CPAP machine may not the reduced average pressure, but it may simply be that you simply don’t need to bother about adjusting your pressure setting later on. An automatic CPAP machine virtually guarantees you will end up getting 呼吸機 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. Through 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 because the maximum pressure is used. However, in case your prescribed pressure setting is well above 10 cm H2O then improving the minimum pressure might sound right. I might typically recommend making use of the default minimum and maximum pressure settings since these settings allows for that maximum average pressure reduction and also the highest amount of patient comfort.
Another great advantage of automatic CPAP machines is the fact they’re really two machines in just one. You have a CPAP machine which adjusts pressure automatically, and you get a machine which can be set to provide a constant pressure just like a normal CPAP machine. This flexibility in functionality is alluring to many CPAP users, especially to those who are using CPAP equipment for the first time.
There are 2 kinds of obstructive sleep apnea – central and obstructive. Central apnea occurs because of a dysfunction in the thalamus section of the brain, while obstructive obstructive sleep apnea occurs because of an obstructed airway. CPAP machines are created to open the airway for patients who suffer from obstructive apnea, but CPAP machines may have no effect on central sleep apnea. Some automatic CPAP machines such as the Puritan Bennett 420E can detect apneas which occur with and without cardiac osciallations to avoid improving the pressure during central apnea events where the airway is already open. Similarly, advanced automatic 氧氣機 can also differentiate vgaovd central and obstructive hypopnea (which is identified as shallow breathing).
Below is a review of the advantages of using an automatic CPAP machine:
** Approximately 40% overall reduction in delivered pressure
* No requirement to be worried about adjusting a constant pressure when your condition changes
* Flexibility – the device can be set to automatic mode or constant mode
* Some automatic machines detect the main difference between obstructive apneas/hypopneas and central apneas/hypopneas