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Protocol Memory Deficit in Patients With Obstructive Sleep Apnea Syndrome

This study has been completed.
Information provided by (Responsible Party):
University Hospital, Grenoble Identifier:
First received: April 20, 2007
Last updated: December 29, 2015
Last verified: December 2015

The main objective of this study is to evaluate the evolution of memory deficit (verbal episodic memory, procedural memory, working memory, short-term memory) in Sleep Apnea Obstructive Syndrome (SAOS) patients after treatment by Continuous Positive Airway Pressure treatment (CPAP). For thus, we will compare memory tests in two separate groups of SAOS patients with "effective " versus "ineffective" ( or sham) CPAP, before and 6 weeks after the beginning of the treatment. Thus we will assess the evolution of memory deficit, the effectiveness of the treatment on the evolution of memory deficit before and 6 weeks after the beginning of the treatment by "effective " versus "ineffective" CPAP.

We feel the results of the tests of memory will show greater memory disorders in patients with SAOS before beginning the treatment rather than six weeks afterwards. Thus we hypothesise that, after the treatment by "effective" CPAP, the patients with SAOS will have greater improvement of their memory disorders than those treated by "sham CPAP".

Condition Intervention
Memory Deficit Device: Effective CPAP Device: Sham CPAP

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Triple (Participant, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Comparison of the Evolution of Memory Deficit in Patients With Sleep Apnea Obstructive Syndrome (SAOS) Before and After "Effective" Versus Sham Treatment by Positive Pression Continues (PPC)

Resource links provided by NLM:

Further study details as provided by University Hospital, Grenoble:

Enrollment: 40
Study Start Date: April 2007
Study Completion Date: June 2013
Primary Completion Date: June 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Effective CPAP treatment
Effective Continuous Positive Airway Pressure treatment (CPAP) applied for 6 weeks
Device: Effective CPAP
Auto-titrating CPAP machines (Remstar Auto; Philips Respironics, Murrysville, PA) provided by a home care company (Bastide Medical, France). Pressure was set between 6 and 14 cm of water
Sham Comparator: Sham CPAP treatment
Ineffective Continuous Positive Airway Pressure treatment (sham CPAP) applied for 6 weeks
Device: Sham CPAP
Similar CPAP machine delivering a 4 cm of water pressure that was too low to suppress sleep respiratory events.

Detailed Description:
We want to assess the evolution, before and 6 weeks after the beginning of the treatment, of the significant differences of the performances of the various memory tests evaluating several forms of memory (episodic memory, working memory, short-term memory and procedural memory) according to the treatment for patients with SAOS (effective versus sham).

Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Major patients,
  • agreeing,
  • diagnosed suffering from the SAOS,
  • regulation by the specialist in a treatment by CPAP,
  • patients do not begin the treatment
  • affiliated to the social security,
  • fluent in French.

Exclusion Criteria:

  • Patients presenting severe depressive disorders (HADS score>19),
  • intellectual deterioration (MMS< 28),
  • a functional failure of the dominant arm upper limb inhibiting realization of graphic tasks,
  • an associated oxygen treatment,
  • suffering from cancer,
  • cerebro-vascular accident,
  • pregnant or nursing women,
  • adult under supervision or trusteeship,
  • patients already included in another research protocol or in period of exclusion,
  • antidepressant and anxiolytic treatment.
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Please refer to this study by its identifier: NCT00464659

Laboratoire EFCR-Functional Cardio-Respiratory Exploration Laboratory
Grenoble, Isere, France
Sponsors and Collaborators
University Hospital, Grenoble
Principal Investigator: Jean-Louis JP Pépin, ProfessorPhD University Hospital, Grenoble
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: University Hospital, Grenoble Identifier: NCT00464659     History of Changes
Other Study ID Numbers: 0629
Study First Received: April 20, 2007
Last Updated: December 29, 2015
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Yes
Plan Description: All individual patient data are anonymized

Keywords provided by University Hospital, Grenoble:
Sleep apnea obstructive syndrome (SAOS)
memory deficit
Continuous Positive Airway Pression (CPAP)

Additional relevant MeSH terms:
Sleep Apnea Syndromes
Sleep Apnea, Obstructive
Memory Disorders
Respiration Disorders
Respiratory Tract Diseases
Sleep Disorders, Intrinsic
Sleep Wake Disorders
Nervous System Diseases
Neurobehavioral Manifestations
Neurologic Manifestations
Signs and Symptoms processed this record on September 20, 2017