ICD·index Chapters ENESDE
7A42.0 category

Obesity hypoventilation syndrome

Definition

Obesity hypoventilation syndrome is characterised by obesity (in adults, Body-Mass-Index > 30 kg/m²) and daytime hypercapnia indicated by arterial partial pressure of carbon dioxide (PaCO2) > 45 mm Hg that cannot be fully attributed to an underlying cardiopulmonary or neurologic disease. Hypercapnia worsens during sleep and is often associated with severe arterial oxygen desaturation. Obstructive sleep apnoea is also present in the majority of cases and should be diagnosed in addition to obesity hypoventilation. Note: A definitive diagnosis requires demonstration of daytime hypercapnia and objective evidence based on polysomnography, with carbon dioxide (CO2) monitoring (by arterial, end-tidal or transcutaneous measures).

Inclusions

  • Pickwickian syndrome

Also indexed as

Extreme obesity with alveolar hypoventilation with BMI unspecifiedExtreme obesity with alveolar hypoventilation with Body-Mass-Index of 40 and moreExtreme obesity with alveolar hypoventilation with Body-Mass-Index of 40 kg/m² and moreExtreme obesity with alveolar hypoventilation with Body-Mass-Index unspecifiedOHS - [obesity hypoventilation syndrome]Obesity hypoventilation syndromeObesity hypoventilation syndrome with BMI 30.00-34.99 kg/m²Obesity hypoventilation syndrome with BMI 35.00-39.99 kg/m²Obesity hypoventilation syndrome with BMI greater than or equal to 40.00 kg/m²Obesity with alveolar hypoventilation with Body-Mass-Index of 30 but less than 35Obesity with alveolar hypoventilation with Body-Mass-Index of 30 kg/m² but less than 35 kg/m²Obesity with alveolar hypoventilation with Body-Mass-Index of 35 but less than 40Obesity with alveolar hypoventilation with Body-Mass-Index of 35 kg/m² but less than 40 kg/m²Pickwick syndromePickwickian syndromealveolar hypoventilation syndromealveolus hypoventilation syndromecardiopulmonary obesity syndrome

Nearby in Sleep-related hypoventilation or hypoxemia disorders