Quantitating Airflow in Sleep-Disordered Breathing: The Nose Knows

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SYNOPSIS: The use of a nasal cannula/pressure transducer device to measure airflow during polysomnography (PSG) is more sensitive than the commonly used thermistor at detecting flow limitation. This device will aid in the diagnosis of upper airway resistance syndrome.

SOURCE: Hosselet JJ et al. Detection of flow limitation with a nasal cannula/pressure transducer system. Am J Respir Crit Med 1998;157:1461–7.

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