Another Sleepy Head question

raftergirl · Post by **raftergirl** » Tue Sep 30, 2014 5:26 am

What exactly is Flow Limitation? How does that differ from OA. The SH definition is "a restriction in breathing from normal, causing a flattening of the flow waveform." What causes this restriction if it's not obstructive?

Pugsy · Post by **Pugsy** » Tue Sep 30, 2014 7:18 am

Flow limitations are usually obstructive in nature but the percent of reduction in flow maybe isn't enough to earn a OA or hyponea flag or maybe doesn't last long enough. Remember it has to last 10 seconds to get a flag.
Have the airway totally blocked for only 8 seconds and it doesn't meet criteria.

The definitions in SleepyHead were all taken from either ResMed or Respironics.

palerider · Post by **palerider** » Tue Sep 30, 2014 9:36 am

raftergirl wrote:What exactly is Flow Limitation? How does that differ from OA. The SH definition is "a restriction in breathing from normal, causing a flattening of the flow waveform." What causes this restriction if it's not obstructive?

watch this: https://www.youtube.com/watch?v=-gie2dhqP2c

raftergirl · Post by **raftergirl** » Tue Sep 30, 2014 2:11 pm

Thanks pugsy and palerider.
I'm still a newbie, trying to figure out what all the SH data and terminology means. That YouTube video was helpful.

Another Sleepy Head question

Another Sleepy Head question

Re: Another Sleepy Head question

Re: Another Sleepy Head question

Re: Another Sleepy Head question