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Association of Hypoxia Measured by Oxygen Desaturation Index (ODI) in OSA with Delis-Kaplan Executive Function System (D-KEFS) Tests in Middle-Aged and Older Adults

Association of Hypoxia Measured by Oxygen Desaturation Index (ODI) in OSA with Delis-Kaplan Executive Function System (D-KEFS) Tests in Middle-Aged and Older Adults

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
TCTR
Registry ID
TCTR20190805004
Enrollment
29
Registered
2019-08-05
Start date
2019-01-07
Completion date
Unknown
Last updated
2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Obstructive sleep apnea Obstructive sleep apnea Cognitive impairment Memory Executive function Elderly Magnetic resonance imaging

Interventions

Sponsors

Chulalongkorn University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
50 Years to 100 Years

Inclusion criteria

Inclusion criteria: 1. Newly diagnosed with moderate to severe OSA by a split-night laboratory polysomnography (apnea hypopnea index ≥ 15)

Exclusion criteria

Exclusion criteria: 1.Severe systemic diseases : cirrhosis (Child&#45;Pugh score B or C)&#44; chronic kidney disease stage 3 or more&#44; pulmonary disease with chronic hypoxia or hypercarbia&#44; heart failure NYHA II or more 2.Psychiatric illness 3.Neurological diseases : brain tumor&#44; stroke&#44; epilepsy&#44; coma&#44; history loss of consciousness of more than 30 mins after head trauma&#44; encephalitis 4.Use of psychotropic medications 5.Alcohol or illicit drug abuse 6.Prior therapy for OSA 7.Sleep disorders other than OSA including central sleep apnea&#44; insomnia&#44; REM behavioral disorder&#44; restless leg syndrome&#44; periodic limb movement disorder&#44; narcolepsy 8.Thai Mental State Examination score < 24 9.Inability to complete neuropsychological assessments or not fluent in Thai 10.Contraindications for MRI: presence of cardiac pacemaker or defibrillator&#44; presence of metallic implants&#44; claustrophobia&#44; or uncomfortable or unable to lie down still for the MRI.

Design outcomes

Primary

MeasureTime frame
Correlation of oxygen desaturation index and score from D&#45;KEFS Tower Test Once after diagnosed with OSA D&#45;KEFS Tower Test

Secondary

MeasureTime frame
Correlation of oxygen desaturation index and composite measurement of executive function tests Once after diagnosed with OSA Battery of executive function tests,Correlation of oxygen desaturation index and composite measurement of memory function tests Once after diagnosed with OSA Battery of memory function tests,Correlation of oxygen desaturation index and composite measurement of attention function tests Once after diagnosed with OSA Battery of attention function tests,Correlation of oxygen desaturation index and composite measurement of processing speed tests Once after diagnosed with OSA Battery of processing speed tests,Correlation of oxygen desaturation index and brain atrophy in prefrontal area Once after diagnosed with OSA Cortical thickness measurement from magnetic resonance imaging of the brain at prefrontal cortex,Correlation of oxygen desaturation index and axonal integrity of frontal lobe Once after diagnosed with OSA fractional anisotropy from diffusion tensor imaging of frontal lobe,Correlation of oxygen desaturation index and function of the prefrontal cortex Once after diagnosed with OSA resting state functional connectivity from functional magnetic resonance imaging of prefrontal corte

Countries

Thailand

Contacts

Public ContactAnthipa Chokesuwattanaskul

Chulalongkorn University

anthipa_pim@yahoo.com+66 22564000

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026