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What are the definition of “Apnea” and “Hypopnea”?

April 26, 2017Apnea definition hypopnea

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What are the definition of “Apnea” and “Hypopnea”?

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Apnea is defined as a cessation of airflow for at least 10 seconds. Hypopnea is defined as an abnormal respiratory event lasting as least 10 seconds with at least a 30% reduction in thoracoabdominal movement or airflow as compared to baseline, and with a 4% oxygen desaturation.