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Pulmonology / Respiratory

Obesity Hypoventilation Syndrome (Pickwickian)

ICD-10 Code
E66.2

Clinical Criteria for Obesity Hypoventilation Syndrome (Pickwickian).

Clinical Presentation & Protocol

Patient Usually Complains Of

Patient presents with chronic daytime hypersomnolence, morning headaches, and exertional dyspnea. History significant for morbid obesity (BMI >30 kg/m²) and documented sleep-disordered breathing. Reports snoring, witnessed apneas, and unrefreshing sleep. No history of primary lung disease or neuromuscular disorders.

Clinical Examination Findings

General: Morbidly obese, BMI [X] kg/m². HEENT: Mallampati score [X], neck circumference [X] cm. Respiratory: Breath sounds diminished at bases, no wheezing or crackles. Cardiovascular: Regular rate and rhythm, no murmurs, no peripheral edema. Neurological: Alert and oriented, no focal deficits.

Treatment Protocol

Initiate PAP therapy (CPAP or BiPAP) to address nocturnal hypoventilation. Weight loss counseling and referral to bariatric specialist. Optimize management of comorbid conditions (e.g., HTN, DM). Avoid sedatives and alcohol. Monitor ABG for persistent hypercapnia (PaCO2 >45 mmHg).

Detailed clinical guide coming soon.