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What is hypopnea?

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Hypopnea is when you take in shallow breaths for 10 seconds or longer while asleep and your airflow is at least 30% less than normal. But your breathing doesn't totally stop since your airway is only partly blocked. Hypopnea is similar to the more familiar apnea. They're different versions of a condition called obstructive sleep apnea hypopnea syndrome.

SOURCES:

National Heart, Lung, and Blood Institute: “Sleep Apnea.”

National Sleep Foundation: “Sleep Apnea.”

Sleep Science and Practice: “Hypopnea Definitions, Determinants and Dilemmas: A Focused Review.”

Mayo Clinic Proceedings: “Obstructive Sleep Apnea-Hypopnea Syndrome.”

Mayo Clinic: “Obstructive Sleep Apnea.”

Avicenna Journal of Medicine: “Obstructive Sleep Apnea-Hypopnea Syndrome: Etiology and Diagnosis.”

Reviewed by Carol DerSarkissian on April 19, 2020

SOURCES:

National Heart, Lung, and Blood Institute: “Sleep Apnea.”

National Sleep Foundation: “Sleep Apnea.”

Sleep Science and Practice: “Hypopnea Definitions, Determinants and Dilemmas: A Focused Review.”

Mayo Clinic Proceedings: “Obstructive Sleep Apnea-Hypopnea Syndrome.”

Mayo Clinic: “Obstructive Sleep Apnea.”

Avicenna Journal of Medicine: “Obstructive Sleep Apnea-Hypopnea Syndrome: Etiology and Diagnosis.”

Reviewed by Carol DerSarkissian on April 19, 2020

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What are the types of hypopnea?

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