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 (hī-pŏp′nē-ə, hī′pō-nē′ə)
Abnormally slow, shallow breathing.

[hypo- + Greek pnoiā, -pnoia, breath, breathing (from pnein, to breathe; see pneu- in Indo-European roots).]

hy′pop·ne′ic adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.hypopnea - slow or shallow breathing
breathing, external respiration, respiration, ventilation - the bodily process of inhalation and exhalation; the process of taking in oxygen from inhaled air and releasing carbon dioxide by exhalation
hyperpnea - energetic (deep and rapid) respiration that occurs normally after exercise or abnormally with fever or various disorders


n hipopnea
References in periodicals archive ?
The natural result is a decrease in the frequency and duration of apneic and hypopnea events, including snoring.
According to researchers, treating conditions like sleep apnea and hypopnea (shallow breathing) might lower the risk of dementia or at least slow its progression, Health News reported.
On a 2-night home sleep study, 91% of males and 71% of females were found to have an apnea hypopnea index of 5 or more.
Some may not completely stop breathing and instead have hypopnea, in which the airflow decreases by 50 percent for at least 10 seconds, or decreases by 30 percent with an associated decrease in the oxygen saturation in the blood.
KEY WORDS: Children, Hypopnea syndrome, Immune status, Obstructive sleep apnea.
To the Editor: Obstructive sleep apnea syndrome (OSAS) is caused by recurrent episodes of complete or partial collapse of the upper airways during sleep and can induce apnea or hypopnea.
Decreased retinal nerve fiber layer thickness in patients with obstructive sleep apnea/ hypopnea syndrome.
Objective: To study the effect of adding body mass index and neck circumference to Epworth Sleepiness Scale (ESS) for diagnosing obstructive sleep apnea hypopnea syndrome in sleep clinics.
An apneic event is characterized by complete cessation of airflow; hypopnea is a partially compromised airway.
Sleep apnea severity was assessed with the apnea-hypopnea index (AHI), which indicates severity based on the number of apneas (complete cessation of airflow) and hypopneas (partial cessation of airflow) per hour of sleep.
Sometimes the increased breathing ("recovery breaths") overshoots and lowers the CO2 too much so a central apnea or hypopnea occurs.
The apnea-hypopnea index (AHI) is an index of severity that combines apneas and hypopneas (slow or shallow breathing).