Compared with the 39 predicted nonresponders, the 54 predicted responders exhibited greater reduction from baseline in apnea hypopnea
index (AHI; 73 versus 51 percent) and a lower treatment AHI (eight versus 16 events/hour).
At least 3% decrease in oxygen saturation together with at least 50% decrease in respiratory volume and decline in chest wall mobility and/or arousal was defined as hypopnea
. Apnea-hypopnea index (AHI) value was calculated by dividing the sum of apnea and hypopnea
counts recorded during sleep into the total sleeping time.
The data demonstrated that both groups experienced a statistically significant reduction in their Apnea Hypopnea
Index, or AHI, following 12 months of Inspire therapy.
Index (AHI), a widely used indicator of the severity of OSAS, was defined as some hypopnea
or apnea per hour.
An obstructive apnea "episode" was defined as a complete cessation of airflow for 10 seconds or longer, and an episode of hypopnea
was defined as a reduction in airflow for at least 10 seconds associated with a greater than 4% decrease in arterial oxygen saturation.
 The characteristic symptoms of OSAS include snoring, apnea or hypopnea
, and excessive daytime sleepiness.
The paper "The Development of a Dual-Radar System with Automatic Hypopnea
Threshold Optimization for Contact-Free Sleep Apnea-Hypopnea Syndrome Screening" deals with not only sleep apnea sensing techniques using dual radars located beneath bed mattress but also ideal screening algorism which determines the hypopnea
According to researchers, treating conditions like sleep apnea and hypopnea
(shallow breathing) might lower the risk of dementia or at least slow its progression, Health News reported.
Diagnosis and disease severity classification were conducted according to the Diagnosis and Treatment Guide Draft for Obstructive Sleep Apnea and Hypopnea
Syndrome in Children (Urumchi) (5).
Some may not completely stop breathing and instead have hypopnea
, in which the airflow decreases by 50 percent for at least 10 seconds, or decreases by 30 percent with an associated decrease in the oxygen saturation in the blood.
To the Editor: Obstructive sleep apnea syndrome (OSAS) is caused by recurrent episodes of complete or partial collapse of the upper airways during sleep and can induce apnea or hypopnea
. Recurrent episodes of intermittent hypoxia and higher carbon dioxide levels may lead to frequent interruption of sleep.[sup] Nocturnal enuresis (NE) is characterized by the involuntary and recurrent voiding of urine during sleep.
less 2.16 than 15 Oxygen saturation level below 90% for 1% or more 1.14 of sleep time High percentage of sleep time spent in apnea or 2.21 hypopnea
(median, 22.7%) vs.