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Hypoventilation (also known as respiratory depression) occurs when ventilation is inadequate (hypo meaning "below") to perform needed respiratory gas exchange. [1] By definition it causes an increased concentration of carbon dioxide (hypercapnia) and respiratory acidosis.
Chronic alveolar hypoventilation, defined as a sustained increase in PCO 2 exceeding 45 mm Hg, is a condition commonly encountered by the chest physician.
1 Δεκ 2008 · Central alveolar hypoventilation disorders are rare and complex disorders that may involve alterations in mechanisms of ventilatory control and autonomic dysfunction. These disorders may be congenital or acquired and are associated with significant morbidity and mortality.
Alveolar hypoventilation occurs when ventilation of the alveoli is low in relation to O 2 consumption and CO 2 production such that the partial oxygen tension (P o 2) falls and the partial carbon dioxide tension (P co 2) rises.
31 Μαΐ 2023 · Hypoventilation develops when oxygen levels are too low, and carbon dioxide levels are too high. The most common causes of hypoventilation are being a person with obesity, a genetic mutation, and sleep apnea. A healthcare provider can determine how to diagnose hypoventilation using various tests.
31 Ιουλ 2022 · Primary alveolar hypoventilation is a rare disorder in which a person does not take enough breaths per minute. The lungs and airways are normal. Causes. Normally, when the oxygen level in the blood is low or the carbon dioxide level is high, there is a signal from the brain to breathe more deeply or quickly.
Alveolar ventilation is the product of respiratory rate, tidal volume, and dead space to tidal volume ratio. Increases in dead space can effectively lead to reductions in alveolar ventilation and an increase in P co2.
