SEND APNEA REFERENCE – GET A PRIZE
Question:
hi i am doing some research for our sleep center and for my own satisfaction and would appreciate a little help from a professional like you. 99% of articles i read regarding the breathing cessation period for a sleep apnea state that an apnea occurs with "10 seconds or greater" cessation. i am looking for the source of this theory and as yet have been unable to find it. where, when, or who decided on this 10 second or greater theory? would not a breathing cessation of less than 10 seconds be considered an apnea; a problem??? who ever can provide me with the reference of where an apnea was decided to be 10 seconds or greater gets the surprise. provide me with a valid reference of where an apnea can be considered at less than 10 seconds (it must specify a number less than ten…..NOT few or several) cessation and get a bigger surprise. email me a good reference and receive a round of golf and/or dinner in myrtle beach sc. looking forward to hearing from you soon greg EMAIL ME AT NEUROTE…@AOL.COM
Response:
NeuroTeezr (neurote…@aol.com) wrote:
: hi : i am looking for the source of this theory and as yet have been unable to : find it. where, when, or who decided on this 10 second or greater theory? : would not a breathing cessation of less than 10 seconds be considered an : apnea; a problem??? The source is: Rechtschaffen, A., and A. Kales. 1968. A manual of standardized terminology: techniques and scoring system for sleep stages of human subjects. Brain Info Service/Brain Research Institute, UCLA, Los Angeles. NIH Publication No. 204. This is the commonly used technique in scoring sleep studies. As it refers to sleep apnea, the criteria of R&K include 30-second epochs. Apneas are defined as cessation of flow for >10 seconds and hypopneas are defined as 50% reduction in airflow for >10 seconds associated with a >4% decrement in oxygen saturation and/or arousal. What’s my prize!!!?!?!?!? kcw — __kevin c welch______________________________________________________ http://www.genesisproject.com/
Response:
Mark Snyder M-4 and/or Pamela Means DVM wrote: – Hide quoted text — Show quoted text -> NeuroTeezr wrote: > > hi > > i am doing some research for our sleep center > What is your role at the sleep center? > >and for my own satisfaction > > and would appreciate a little help from a professional like you. 99% of > > articles i read regarding the breathing cessation period for a sleep apnea > > state that an apnea occurs with "10 seconds or greater" cessation. > That’s how it has been defined in the literature, yes. > > i am looking for the source of this theory and as yet have been unable to > > find it. > It’s not a theory. If you stop breathing for 10 sec, *by definition* it > is an apnea episode. > > where, when, or who decided on this 10 second or greater theory? > There I don’t know. Perhaps Guillemenault or Dement defined it as > such? I probably could find out but not timely. I suggest you try > PubMed at the National Library of Medicine (http://igm.nlm.gov). > > would not a breathing cessation of less than 10 seconds be considered an > > apnea; a problem??? > Depends on whether it caused you to use up your oxygen reserves in the > lungs. Most people have between 10 and 30 seconds of air reserve held > in the lungs. Besides, you probably wouldn’t notice an apnea if it were > less than 10 seconds- it would be slow normal rhythm breathing. > Without breathing in deeply, hold your breath. How long until it gets > uncomfortable? Abour 10-20 seconds, because after that you’re out of > your oxygen reserve. That’s where the 10 second rule comes from. > > who ever can provide me with the reference of where an apnea was decided > > to be 10 seconds or greater gets the surprise. > Don’t know if this meets your criteria but regardless- I don’t need a > prize. Thanks anyway. > — > Mark P. Snyder, Ed.M., M-4 > University of Illinois College of Medicine at Urbana-Champaign > http://www.students.uiuc.edu/~majnun
Suggest you contact the American Sleep Disorder Association. I think their address is http://www/asda.org. There is a Standards group that decided what is and what isn’t a "Standard." –Joe–
