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Old 12-30-2012
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Default obstructive sleep apnea

how to diagnose between obstructive sleep apnea and pickwickian syndrome?

both are obesity realted, daytime sleepliness and retention of carbon dioxide , pulmonary htn.
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Originally Posted by doxorubicin View Post
how to diagnose between obstructive sleep apnea and pickwickian syndrome?

both are obesity realted, daytime sleepliness and retention of carbon dioxide , pulmonary htn.
with OSA, pt will snor, polysomnograhy is the differential test
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Quote:
Originally Posted by doxorubicin View Post
how to diagnose between obstructive sleep apnea and pickwickian syndrome?

both are obesity realted, daytime sleepliness and retention of carbon dioxide , pulmonary htn.
OSA does not have daytime symptoms; obesity hypoventilation syndrome aka pickwickian syndrome has daytime sleepiness, CO2 retention, etc
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Obstructive sleep apnea and obesity hypoventilation syndrome has same symptoms, investigation and treatment.

differntiating factor is OHS has AWAKE LOW PO2 and high pco2 whereas OSA has high pco2 only during apnic episodes or when chronic but never shows low po2.
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Awake pCo2 > 45 mmHg = obesity hypoventilation syndrome
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