Introduction: Obesity Hypoventilation Syndrome (OHS) is a serious condition characterized by obesity (BMI ≥30 kg/m²), sleep-disordered breathing, and daytime hypercapnia (PaCO₂ ≥45 mm Hg), after excluding other causes of hypoventilation. Recognizing the need for standardized evaluation and management, the American Thoracic Society (ATS) has developed comprehensive guidelines. These aim to improve early recognition, optimize treatment […]

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