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RecruitingNot ApplicableNCT05147649

Functional Magnetic Resonance Imaging in Patients With Obstructive Sleep Apnea Syndrome

Functional Magnetic Resonance Imaging in Patients With Obstructive Sleep Apnea Syndrome, With and Without CPAP, During Wakefulness - Impact on Cognitive Functions

Sponsor

CHU de Reims

Enrollment

70 participants

Start Date

Mar 2, 2023

Study Type

INTERVENTIONAL

Conditions

Obstructive Sleep Apnea Syndrome

Summary

The obstructive sleep apnea syndrome (OSAS) involves recurrent sleep-related upper airways (UA) collapse. UA mechanical properties and neural control are altered, imposing a mechanical load on inspiration. UA collapse does not occur during wakefulness, hence arousal-dependent compensation. Experimental inspiratory loading in normal subjects elicits respiratory-related cortical activity during wakefulness. The objective of this study is to test whether awake OSAS patients would exhibit a similar cortical activity. Whether or not such cortical compensatory mechanisms have cognitive consequences would be also analyze.

Eligibility

Min Age: 18 YearsMax Age: 75 Years

Inclusion Criteria17

  • OSAS patients
  • severe OSAS with an Apnea-Hypopnea Index (AHI) > 30/h
  • without CPAP treatment
  • Non-OSAS patients
  • absence of OSAS (AHI < 15/h and absence of excessive daytime sleepiness with Epworth score <11)
  • < 18 years old
  • >75 years old
  • left-handed
  • BMI> 40 kg/m²
  • another sleep disorder
  • central component of sleep apnea syndrome (central apnea index> 5 / h)
  • current or past neurological pathology
  • respiratory pathology (obstructive ventilatory disorder, restrictive ventilatory disorder, hypercapnia)
  • MRI contraindication (metallic foreign body, claustrophobia, pregnant woman, etc.)
  • taking drugs that can modify the BOLD signal on MRI (psychotropic drugs, vasodilators, vasoconstrictors, etc.),
  • uncorrected sensory impairment (vision or hearing)
  • protected by law.

Exclusion Criteria7

  • pregnant woman according to the positive beta-hCG test result
  • left-handed following the laterality questionnaire
  • MINI results showing:
  • a current mood episode
  • a current disorder of the use of psychoactive substances or in the last 6 months (excluding tobacco)
  • an eating disorder
  • a diagnosis of bipolar disorder, current or past schizophrenia

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Interventions

DIAGNOSTIC_TESTfunctional magnetic resonance imaging

functional magnetic resonance imaging

Locations(1)

Chu Reims

Reims, France

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NCT05147649