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Obesity associated hypoventilation in medical patients is common, potentially dangerous and under-recognised
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  1. N T Ayas
  1. Assistant Professor of Medicine, University of British Columbia and the Centre of Clinical Epidemiology and Evaluation, Vancouver General Hospital, Vancouver, Canada; ayasnajib@pol.net

https://doi.org/10.1136/thx.2004.la0085

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    ▴ Nowbar S, Burkart KM, Gonzalez R, et al. Obesity-associated hypoventilation in hospitalized patients: prevalence, effects, and outcome. Am J Med2004;116:1–7
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    The authors studied consecutive severely obese patients (BMI ⩾35 kg/m2) admitted to the medicine services of three teaching hospitals. Arterial blood gas tensions were measured to assess the prevalence, predictors, and outcomes of patients with obesity associated hypoventilation (OAH), defined as Paco2 ⩾43 mm Hg and pH ⩽7.42, with no …

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