Prevalence Rate, and Clinical Characteristics of Obesity Hypoventilation Syndrome Via Screening Patients Admitted to Medical Intensive Care Units

Prevalence Rate, and Clinical Characteristics of Obesity Hypoventilation Syndrome Via Screening Patients Admitted to Medical Intensive Care Units

A prospective observation study to screen adult obese (BMI ≥30 kg/m2) patients who were newly admitted to the medical intensive care units and turned out to be diagnosed as Obesity hypoventilation syndrome(OHS). The investigators purpose is to look into the prevalence, predictive factors, and outcomes of OHS in these critically ill patients.

Inclusion Criteria:

• BMI ≥ 30 kg/m2
• Suspected chronic hypercapnia as following Paco2 ≥ 45 mmHg, HCO3- ≥ 27mEq/L or base excess, BE ≥ 2 mEq/L

Exclusion Criteria:

• Malignancy with lung involvement
• Autoimmune disease with lung involvement
• Moderate to severe obstructive respiratory pattern via spirometry
• Uncontrolled endocrine disease
• Pregnancy
• Pneumonia confirmed by image
• Out-of-hospital cardiac arrest
• Lung edema
• Foreigner of Taiwan