We analyzed age, gender, body mass index, various PSG indices including sleep stages, apnea-hypopnea index (AHI) and AHI ratio in rapid eye movement (REM) versus non-REM (NREM) sleep stages (R:N ratio). Of those 309 patients diagnosed with obstructive sleep apnea, 217 (70.2%) were men...
The apnea–hypopnea index (AHI) is used to assess the severity of sleep apnea based on the total number of complete cessations (apnea) and partial obstructions (hypopnea) of breathing occurring per hour of sleep. From: Encyclopedia of Sleep, 2013 ...
“central” because your apneas are causes by a dysfunction in the central nervous system, not a physical obstruction. Most newer CPAP machines will report if you’re experiencing central apneas or you can’t identify what is causing your rising apnea-hypopnea index, talk to your doctor or ...
We use the AHI (the Apnea-Hypopnea Index) to assess both central sleep apnea (CSA) and obstructive sleep apnea (OSA). The risk factors for CSA and OSA AHI scale include: Obesity; Male sex; Family history of apnea; Large neck circumference; Being older; Using recreational drugs, alcohol, ...
Apnea hypopnea index (AHI) and peripheral capillary oxygen (SpO 2 ) saturation were measured during each sleep epoch of unique head rotation, head incline, and torso position.Two participants (1 with no apneas and 1 with central sleep apnea) were excluded. Among the remaining 8 participants, ...
The apnea-hypopnea index (AHI) is equal to the average number of episodes of apnea and hypopnea per hour of sleepwithout the use of a positive airway pressure device. Sleep time can only be measured in a Type I (facility-based polysomnogram) or Type II sleep study. Thus the AHI is ...
Abstracted data included age, gender, body-mass index (BMI), respiratory disturbance index (RDI), apnea-hypopnea index (AHI), TSH levels in the two years preceding PSG, pre-existing diagnosis of hypothyroidism, and patients with newly diagnosed hypothyroidism (based on TSH value at the...
hypopnea index <10, n (%) 0 (0) 13 (26) 13 (26) 0 4 (8) 4 (8) 18% (4 to 32) .01f Apnea index 12.7 (14.5) 3.1 (5.6) −13.4 (−20.5 to −6.3) 13.2 (21.1) 6.8 (12.1) −6.0 (−9.6 to −2.4) −7.4 (−14.3 to −0.5) .04g Apnea index, median (...
Fifteen subjects with OVS and 15 matched controls with OSA alone were studied (overall 66±8years, 20% women, BMI 31±4kg/m , apnea‐hypopnea index 49±36/hr). Mixed‐modeling was used to incorporate each measurement (range 52–270 measures/trait), and account for age, gender, and BMI...
Pevernagie DA, Gnidovec-Strazisar B, Grote L, Heinzer R, McNicholas WT, Penzel T, Randerath W, Schiza S, Verbraecken J, Arnardottir ES (2020) On the Rise and Fall of the Apnea- Hypopnea Index: A Historical Review and Critical Appraisal. J Sleep Res 29(4):e13066 PubMed Google...