Cpaptalk FAQs

This is a list of cpaptalk FAQs. These are questions that are frequently asked on the cpaptalk forum, and so their answers are here, to save time answering the same questions repeatedly.

FAQs

Does pressure cause centrals

This whole fear of pressure causing centrals is highly over rated. People can get central apneas even with as little as 5 cm fixed pressure....and a truck load of them at that. Yes, in SOME people higher pressures can trigger lots of centrals but most of the time it's ANY pressure for those people. Very few will actually have a fine line where above so and do pressure centrals are numerous and below it they aren't. Only 10 to 15 % of the people who use cpap will end up with a problem in the number of centrals they are seeing. Most people won't have a problem no matter what pressure they use or if they use exhale relief in some form.

A few centrals here and there during the night is entirely normal. Sleep onset centrals or sleep stage transitions are normal. Not to mention just the chance of a false positive with an awake breathing pause getting a flag by mistake.