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Elbie
Unread post  Post subject: Fflow limitation  |  Posted: Sat Jun 17, 2017 5:01 pm

Joined: Tue Jan 10, 2017 12:41 pm
Posts: 26
Location: Wyoming
PAP Mask: DreamWear
PAP Machine: ResMed Ait Sense 10
Humidifier: tank type set at 6
Pressure Setting: 12-15 cm
12-15 cm H20

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I read the definition of flow limitation index but am not sure I understand. When I look at particular set of data from one of my bad nights, I see a group of OAs one right after the other. During this time of numerous OAs, the Flow Limit graph reads 0. I would think the number would be different. Also, during these "lots of OAs times" I see that my machine pressure is not max. My machine is set for 12 to 15 cm of water. Even though I am having so many apneas in a row, the machine pressure does not go anywhere near 15. Usually the max is about 13.9. Is it that the machine just goes to whatever pressure eliminates the apnea? If that is so, why not just set my machine for 14 cm?
Elbie


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diamaunt
Unread post  Post subject: Re: Fflow limitation  |  Posted: Sat Jun 17, 2017 6:02 pm
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Joined: Wed Mar 02, 2016 2:26 am
Posts: 2010
Location: Dallas(ish)
PAP Mask: Resmed P10
PAP Machine: Resmed S9 vpap auto
Pressure Setting: 18/13-25/19

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Elbie wrote:
I read the definition of flow limitation index but am not sure I understand. When I look at particular set of data from one of my bad nights, I see a group of OAs one right after the other. During this time of numerous OAs, the Flow Limit graph reads 0. I would think the number would be different.

why?

Elbie wrote:
Also, during these "lots of OAs times" I see that my machine pressure is not max. My machine is set for 12 to 15 cm of water. Even though I am having so many apneas in a row, the machine pressure does not go anywhere near 15. Usually the max is about 13.9. Is it that the machine just goes to whatever pressure eliminates the apnea? If that is so, why not just set my machine for 14 cm?
Elbie

your machine is somewhat slow to respond, so getting the right minimum pressure right is very important. the machine reacts to flow limitations, snores, hypopneas and apneas, according to a program... but it might not be reacting fast enough for your needs... raising the minimum should help.

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