Status:

RECRUITING

Functional Capacity, Sleep Quality, and Cognitive Function in Obesity Hypoventilation Syndrome

Lead Sponsor:

Bezmialem Vakif University

Collaborating Sponsors:

Istanbul University

Conditions:

Obesity Hypoventilation Syndrome (OHS)

Eligibility:

All Genders

18-65 years

Brief Summary

Introduction: Obesity Hypoventilation Syndrome (OHS) is defined as the coexistence of obesity (BMI ≥ 30 kg/m²), daytime hypercapnia (PaCO₂ \> 45 mmHg) in the absence of other causes of hypoventilatio...

Detailed Description

Obesity Hypoventilation Syndrome (OHS) is defined as the combination of obesity (BMI ≥ 30 kg/m²), daytime hypercapnia (PaCO₂ \> 45 mmHg) in the absence of other pathologies causing hypoventilation, an...

Eligibility Criteria

Inclusion

  • Age between 18 and 65 years
  • Diagnosed with OHS by a pulmonologist
  • For individuals with simple obesity: BMI between 30 and 40 kg/m², Apnea-Hypopnea Index (AHI) \< 5 on polysomnography, or STOP-Bang score \< 3
  • Ability to communicate in written and spoken Turkish

Exclusion

  • Presence of any additional severe respiratory disease
  • Presence of orthopedic, neurological, cardiovascular, or respiratory conditions preventing exercise testing
  • For individuals with simple obesity: presence of OSAS risk factors such as severe snoring or witnessed apnea
  • Presence of any psychological or psychiatric disorder that could affect cognitive functions

Key Trial Info

Start Date :

January 1 2025

Trial Type :

OBSERVATIONAL

Allocation :

ESTIMATED

End Date :

October 15 2025

Estimated Enrollment :

36 Patients enrolled

Trial Details

Trial ID

NCT07147153

Start Date

January 1 2025

End Date

October 15 2025

Last Update

August 28 2025

Active Locations (1)

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1

Istanbul University, Istanbul Faculty of Medicine

Istanbul, Turkey (Türkiye)