i know what the pressure means and i know that AHI is how many apneas you have per hr but what is AI ane HI i always feel better (less tired during day) if the AI is 0.0 but i dont know what they mean
Help needed please
8 posts
• Page 1 of 1
AI is the apnea index. That's how many apneas you have per hour.
HI is the hypopnea index. How many Hypopneas you have per hour.
Brenda
HI is the hypopnea index. How many Hypopneas you have per hour.
Brenda
_________________
| Humidifier: S9™ Series H5i™ Heated Humidifier with Climate Control |
| Additional Comments: Love my papillow, Aussie heated hose and PAD-A-CHEEKS! Also use Optilife, UMFF(with PADACHEEK gasket), and Headrest masks Pressure; 10.5 |
-
sleepydoll
- Posts: 214
- Joined: Mon Jun 02, 2008 7:33 am
- Location: Sept-Iles, Quebec, Canada
I used to get confused too in the beginning, until a very nice member explained it so well:
AHI (Apnea Hypopnea Index)
Apnea Hypopnea Index is the number of apneas and hypopneas per hour. This index, as well as oxygen saturation levels (O2 Sat), is used to determine how severe a case of Sleep Apnea a patient has.
AI is the average number of apneas per hour (where an apnea is defined as a 75% reduction in breathing for 10 or more seconds)
HI is the average number of times your breathing is reduced to 50% of baseline per hour
Putting AI and HI into context depends on the nature of your breathing disorder.
Hope this helps!
D.
________________
AHI (Apnea Hypopnea Index)
Apnea Hypopnea Index is the number of apneas and hypopneas per hour. This index, as well as oxygen saturation levels (O2 Sat), is used to determine how severe a case of Sleep Apnea a patient has.
AI is the average number of apneas per hour (where an apnea is defined as a 75% reduction in breathing for 10 or more seconds)
HI is the average number of times your breathing is reduced to 50% of baseline per hour
Putting AI and HI into context depends on the nature of your breathing disorder.
Hope this helps!
D.
________________
Experience is what you get, when you don't get what you want!
The mind is like a parachute. It doesn’t work unless it’s open.
The mind is like a parachute. It doesn’t work unless it’s open.
thank you. for the passed week iv made a chart and when iv looked at it (after your post) the HI and the AI add up to the AHI never realised this before
can i ask another question what is a good leak rate or a bad leak rate i have added that to my chart as well but dont realy understand it
_________________
CPAPopedia Keywords Contained In This Post (Click For Definition): AHI
can i ask another question what is a good leak rate or a bad leak rate i have added that to my chart as well but dont realy understand it
_________________
CPAPopedia Keywords Contained In This Post (Click For Definition): AHI
_________________
| Mask | |
 |
-
sleepydoll
- Posts: 214
- Joined: Mon Jun 02, 2008 7:33 am
- Location: Sept-Iles, Quebec, Canada
There is also a website that explains all the sleep-related meanings of acronyms and specifics to sleep:
For Acronyms & Definitions
http://www.sleepnet.com/definition.html
For Acronyms & Definitions
http://www.sleepnet.com/definition.html
Experience is what you get, when you don't get what you want!
The mind is like a parachute. It doesn’t work unless it’s open.
The mind is like a parachute. It doesn’t work unless it’s open.
-
sleepydoll
- Posts: 214
- Joined: Mon Jun 02, 2008 7:33 am
- Location: Sept-Iles, Quebec, Canada
Different masks have different average leaks...your mask came with instruction, and on it is a graphic..check it out. It explains what is acceptable for your type of mask as leaks, depending on your pressure (cmH2O)what is a good leak rate or a bad leak rate i have added that to my chart as well but dont realy understand it
D.
Experience is what you get, when you don't get what you want!
The mind is like a parachute. It doesn’t work unless it’s open.
The mind is like a parachute. It doesn’t work unless it’s open.
Here's a few more:
DEFINITIONS:
APNEA = cessation of airflow for 10 seconds or greater.
HYPOPNEA =>50% decrease in airflow for 10 seconds or greater with a decrease in oxygen saturation of >3%.
APNEA/HYPOPNEA INDEX (AHI) = apnea plus (+) HYPOPNEA/hour of sleep.
RESPIRATORY AROUSAL INDEX (RAI) = AHI +snoring related EEG arousals/hour of sleep.
AHI/RAI** Scale =<5 events /hour = (none); 5-15 events/hour = (mild); 15-30 events/hour = (moderate); >30 events/hour = (severe).
Respiratory related sleep fragmentation: Sleep arousals due to respiratory events or snoring.
Desaturation = Drop in O2 oximetry distribution saturation by 3% below average saturation.
SaO2 scale: >89%=(none); 85-89%=(mild);80-84%=(moderate); <80% (severe).
EPWORTH SLEEPINESS SCALE =<10=(does not indicate EDS (Excessive Daytime Somnolence));10-15=(indicates daytime somnolence-not excessive);>16 (indicates EDS).
RESPIRATORY EFFORT RELATED AROUSALS (RERAs)=Sleep Arousals due to respiratory events characterized by pressure flow limitations in the airflow indicator channel without significant O2 desaturations.
StageIII and StageIV are combined and referred to as Deep Sleep.
Sleep Efficiency = Normal is >80%
As established by AASM/ABSM 1999.
Normal Sleep Architecture:
Stage1: 5%
Stage2: 50%
Stage3: 10%
Stage4: 10%
Stage REM: 25%
Stage3&4, REM decrease as we age.
Stuff seen on a PSG Report:
Arousal: An interruption of sleep lasting greater than 3 seconds.
BR Arousal index: The number of breathing related arousals(apnea, hypopnea, snoring & RERAs)multiplied by the # hours of sleep.
Bruxism: Grinding of the teeth.
Central apnea: A respiratory episode where there is no airflow and no effort to breathe lasting greater than 10 seconds.
EEG/EOG: Comments about sleep stages, brain waves (EEG), or eye movements (EOG)
EKG/ECG: Comments about heart rate, abnormal heart beats, etc.
EMG: Comments about leg movements and or teeth grinding (bruxism).
Hypopnea: A respiratory episode where there is partial obstruction of the airway lasting greater than 10 seconds. Also called partial apnea or hypo-apnea.
Non-supine: Sleeping in any position other than on the back.
NSR: Normal sinus rhythm.
NPSG: Nocturnal Polysomnogram, or sleep study.
(#)Number of Awakenings: The number of pages scored as wake after sleep onset.
Obstructive apnea: A respiratory episode where there is a complete cessation of airflow lasting greater than 10 seconds.
PLMs: Periodic limb movements.
PLM arousal index: The number of periodic limb movements that cause arousals multiplied by the number of hours of sleep.
PSGT: Polysomnographic technologist.
REM latency: Latency to REM(dreaming) from sleep onset.
RERAs: Respiratory effort related arousals. Episodes that are not apneas or hypopneas, often related to loud snoring, that generally do not cause a decrease in oxygen saturation.
Respiratory: Any specific comments about respiratory events.
RPSGT: Registered polysomnographic technologist.
Sleep efficiency: Total sleep time multiplied by time in bed.
Sleep latency: The first 30 seconds (one `epoch' of recording time) of sleep.
Sleep onset: The first 90 seconds (3 `epochs) of uninterrupted sleep.
Sleep stage shifts: The number of incidents of sleep stage changes.
Snoring intensity: Level of snoring loudness determined by the sleep technologist. Ranging in degrees from mild to very loud snoring.
Spontaneous arousal index: The number of spontaneous arousals (e.g. arousals not related to respiratory events, limb movements, snoring, etc) multiplied by the number of hours of sleep.
Stage 1: The lightest stage of sleep. Transitional stage from wake. top
Stage 1 shifts: The number of times the sleep stage changed to stage 1.
Stage 2: The first true stage of sleep.
Stages 3/4: The deepest, most restorative sleep.
Stage REM: The dreaming stage; Normally occurs every 60-90 minutes.
Supine: Sleeping on back.
Time in bed: The time in the study from `Lights Out' to `Lights On'.
Total arousal index: Total number of all arousals multiplied by the number of hours of sleep.
Total # of PLMs: The number of leg movements in sleep that last greater than 0.5 seconds.
Total sleep time: Total time asleep.
WASO: Wakefulness after sleep onset.
WNL: Within normal limits.
DEFINITIONS:
APNEA = cessation of airflow for 10 seconds or greater.
HYPOPNEA =>50% decrease in airflow for 10 seconds or greater with a decrease in oxygen saturation of >3%.
APNEA/HYPOPNEA INDEX (AHI) = apnea plus (+) HYPOPNEA/hour of sleep.
RESPIRATORY AROUSAL INDEX (RAI) = AHI +snoring related EEG arousals/hour of sleep.
AHI/RAI** Scale =<5 events /hour = (none); 5-15 events/hour = (mild); 15-30 events/hour = (moderate); >30 events/hour = (severe).
Respiratory related sleep fragmentation: Sleep arousals due to respiratory events or snoring.
Desaturation = Drop in O2 oximetry distribution saturation by 3% below average saturation.
SaO2 scale: >89%=(none); 85-89%=(mild);80-84%=(moderate); <80% (severe).
EPWORTH SLEEPINESS SCALE =<10=(does not indicate EDS (Excessive Daytime Somnolence));10-15=(indicates daytime somnolence-not excessive);>16 (indicates EDS).
RESPIRATORY EFFORT RELATED AROUSALS (RERAs)=Sleep Arousals due to respiratory events characterized by pressure flow limitations in the airflow indicator channel without significant O2 desaturations.
StageIII and StageIV are combined and referred to as Deep Sleep.
Sleep Efficiency = Normal is >80%
As established by AASM/ABSM 1999.
Normal Sleep Architecture:
Stage1: 5%
Stage2: 50%
Stage3: 10%
Stage4: 10%
Stage REM: 25%
Stage3&4, REM decrease as we age.
Stuff seen on a PSG Report:
Arousal: An interruption of sleep lasting greater than 3 seconds.
BR Arousal index: The number of breathing related arousals(apnea, hypopnea, snoring & RERAs)multiplied by the # hours of sleep.
Bruxism: Grinding of the teeth.
Central apnea: A respiratory episode where there is no airflow and no effort to breathe lasting greater than 10 seconds.
EEG/EOG: Comments about sleep stages, brain waves (EEG), or eye movements (EOG)
EKG/ECG: Comments about heart rate, abnormal heart beats, etc.
EMG: Comments about leg movements and or teeth grinding (bruxism).
Hypopnea: A respiratory episode where there is partial obstruction of the airway lasting greater than 10 seconds. Also called partial apnea or hypo-apnea.
Non-supine: Sleeping in any position other than on the back.
NSR: Normal sinus rhythm.
NPSG: Nocturnal Polysomnogram, or sleep study.
(#)Number of Awakenings: The number of pages scored as wake after sleep onset.
Obstructive apnea: A respiratory episode where there is a complete cessation of airflow lasting greater than 10 seconds.
PLMs: Periodic limb movements.
PLM arousal index: The number of periodic limb movements that cause arousals multiplied by the number of hours of sleep.
PSGT: Polysomnographic technologist.
REM latency: Latency to REM(dreaming) from sleep onset.
RERAs: Respiratory effort related arousals. Episodes that are not apneas or hypopneas, often related to loud snoring, that generally do not cause a decrease in oxygen saturation.
Respiratory: Any specific comments about respiratory events.
RPSGT: Registered polysomnographic technologist.
Sleep efficiency: Total sleep time multiplied by time in bed.
Sleep latency: The first 30 seconds (one `epoch' of recording time) of sleep.
Sleep onset: The first 90 seconds (3 `epochs) of uninterrupted sleep.
Sleep stage shifts: The number of incidents of sleep stage changes.
Snoring intensity: Level of snoring loudness determined by the sleep technologist. Ranging in degrees from mild to very loud snoring.
Spontaneous arousal index: The number of spontaneous arousals (e.g. arousals not related to respiratory events, limb movements, snoring, etc) multiplied by the number of hours of sleep.
Stage 1: The lightest stage of sleep. Transitional stage from wake. top
Stage 1 shifts: The number of times the sleep stage changed to stage 1.
Stage 2: The first true stage of sleep.
Stages 3/4: The deepest, most restorative sleep.
Stage REM: The dreaming stage; Normally occurs every 60-90 minutes.
Supine: Sleeping on back.
Time in bed: The time in the study from `Lights Out' to `Lights On'.
Total arousal index: Total number of all arousals multiplied by the number of hours of sleep.
Total # of PLMs: The number of leg movements in sleep that last greater than 0.5 seconds.
Total sleep time: Total time asleep.
WASO: Wakefulness after sleep onset.
WNL: Within normal limits.
(5) REMstar Autos w/C-Flex & (6) REMstar Pro 2 CPAPs w/C-Flex - Pressure Setting = 14 cm.
"Passover" Humidification - ResMed Ultra Mirage FF - Encore Pro w/Card Reader & MyEncore software - Chiroflow pillow
User since 05/14/05
"Passover" Humidification - ResMed Ultra Mirage FF - Encore Pro w/Card Reader & MyEncore software - Chiroflow pillow
User since 05/14/05
8 posts
• Page 1 of 1