Obstructive sleep apnea(OSA) is defined as complete or partial airway obstruction causing intermittent cessation of breathing during sleep. That will lead to intermittent hypoxemia, hypercapnia, microarousals, and disconnected sleep.63,64Studies report that more than 60% of stroke patients have OSA.65...
When computing the AHI in regular PSG examinations, the wake periods are excluded from the computation of the AHI, i.e., the cumulative number of apnea and hypopnea events is divided by the total sleep time. To partially account for this in our experiments, we have defined the sleep onset...
However, the nature and severity of these abnormalities in non-clinical populations is less well defined. One hundred and forty-one participants from the Tucson, AZ and New York, NY field centers of the Sleep Heart Health Study completed a battery of neuropsychological tests for 9鈥 40 months ...
and severe OSA = OAHI ≥ 10/h and those >12 years were scored according to the adult criteria: mild OSA = OAHI ≥ 5 to < 15/h, moderate OSA= OAHI ≥ 15 to 30/h and severe OSA= OAHI ≥ 30/h. The central apnoea index (CAHI) was defined as the number of central apn...
Face-to-face clinical reevaluation by the treating physician with documentation that symptoms of obstructive sleep apnea are improved;and Objective evidence of adherence to use of the positive airway pressure device, reviewed by the treating physician. Adherence to therapy is defined as use of positiv...
This cohort study investigates the association of sleep architecture and obstructive sleep apnea measures with cognitive function among middle-aged to
The indices commonly used to assess sleep disordered breathing (SDB) are the apnea-hypopnea index (AHI) and the respiratory disturbance index (RDI). The AHI is defined as the average number of episodes of apnea and hypopnea per hour. The RDI is defined as the average number of respiratory ...
Logistic regression was used to determine the associations between the measures of OSA severity (apnea hypopnea index [AHI] and mean nocturnal oxygen [O 2 ] saturation) and abnormal PTFV 1 and PWAV 1 (defined by >75% percentile value of the studied cohort) adjusting for age, sex, body ...
OSA: subjects who answered yes to the question “Have you ever been told by a doctor or other health professional that you have a sleep disorder?” and reported sleep apnea to “What was the sleep disorder?” were defined as having OSA. OSA/COPD overlap syndrome: subjec...
All patients underwent polysomnography and OSA was defined as an apnoea-hypoapnoea index (AHI) > or =15 events/h, of which more than 50% were obstructive. Left ventriculograms immediately after PCI and at 21 days were used to evaluate LV ejection fraction (LVEF), LV end-diastolic volume ...