I’m often asked the question, “What’s the main difference between an automated CPAP machine and a regular CPAP machine?”, so in the following paragraphs I’ll set out to describe the main differences. First I’ll claim that I’ve always wondered the reasons people in the industry often call an automatic CPAP machine something besides what exactly it is – 呼吸機. You will often hear people call these types of machines APAP machines or Auto-PAP machines. In my opinion this is a result of a misunderstanding of the acronym CPAP. CPAP is short for Continuous Positive Airway Pressure, indicating that air pressure will be delivered continuously throughout the sleeping cycle. The word CPAP, however, doesn’t imply that the continuously delivered air will be at a constant pressure. Therefore, the proper term to use for a CPAP machine which automatically adjusts the pressure setting according to your requirements is automatic CPAP machine.
A CPAP machine was created to blow air through your partially obstructed airway so that you can remove the obstruction and to let you breathe normally. What many people call “regular” CPAP machines accomplish this by blowing air in a constant pressure through the night, no matter whether you’re experiencing an apnea – or cessation of breathing – or not.
An automated CPAP machine fails to utilize a constant pressure. Rather, the machine is made to sense your breathing through the use of a pressure feedback device. When the machine senses you might be breathing well, the delivered pressure will be lower. On the other hand, when the machine senses you’re not breathing well – that is, when it senses an apnea, hypopnea or snoring – the delivered pressure will likely be higher.
Because most people with sleep apnea breathe normally for around some part of the night, it makes sense that the 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 睡眠窒息症 which offers a constant pressure. This reduced pressure really helps to increase patient comfort and compliance and makes CPAP therapy more tolerable for new CPAP users.
Should your prescribed pressure setting is relatively low – under 10 cm H2O – the primary benefit of an automatic CPAP machine may not be the reduced average pressure, however it may just be that you don’t need to worry about adjusting your pressure setting in the future. An automatic CPAP machine virtually guarantees you may be getting optimal CPAP therapy irrespective of changes in your trouble.
Just like most CPAP machines, automatic CPAP machines are created to deliver air pressure between 4 cm H2O and 20 cm H2O. Through the initial setup from the machine the minimum and maximum pressures will be set. Normally the default setting of 4 cm H2O as the minimum pressure and 20 cm H2O since the maximum pressure can be used. However, in case your prescribed pressure setting is well above 10 cm H2O then increasing the minimum pressure could make sense. I would personally almost always recommend using the default minimum and maximum pressure settings since these settings allows for the maximum average pressure reduction as well as the highest degree of patient comfort.
Yet another excellent benefit from automatic CPAP machines is that they’re really two machines in a single. You receive a CPAP machine which adjusts pressure automatically, and you get yourself a machine which can be set to offer a continuing pressure like a regular CPAP machine. This flexibility in functionality is attractive to many CPAP users, especially to the people who vfwfvc using CPAP equipment the first time.
The two main types of sleep apnea – central and obstructive. Central apnea occurs because of a dysfunction in the thalamus part of the brain, while obstructive sleep apnea occurs as a result of an obstructed airway. CPAP machines are designed to open the airway for patients who suffer from obstructive sleep apnea, but CPAP machines may have no impact on central obstructive sleep apnea. Some automatic CPAP machines including the Puritan Bennett 420E can detect apneas which occur with and without cardiac osciallations to avoid improving the pressure during central apnea events wherein the airway is already open. Similarly, advanced automatic CPAP machines may also differentiate between central and obstructive hypopnea (which is defined as shallow breathing).
Below is actually a summary of the benefits of utilizing an automatic CPAP machine:
Approximately 40% overall reduction in delivered pressure, No need to concern yourself with adjusting a continuing pressure as your condition changes, Flexibility – the 呼吸機 may be set to automatic mode or constant mode. Some automatic machines detect the real difference between obstructive apneas/hypopneas and central apneas/hypopneas