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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.
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.
Chronic alveolar hypoventilation, defined as a sustained increase in PCO 2 exceeding 45 mm Hg, is a condition commonly encountered by the chest physician.
21 Σεπ 2020 · Congenital Central Hypoventilation Syndrome (CCHS) is a rare condition characterized by an alveolar hypoventilation due to a deficient autonomic central control of ventilation and a global autonomic dysfunction. Paired-like homeobox 2B (PHOX2B) mutations are found in most of the patients with CCHS.
25 Μαΐ 2017 · Hypoventilation syndromes are characterized by a decrease in minute ventilation resulting in an elevated partial pressure of carbon dioxide (PCO 2) with a relatively normal pH and an elevated bicarbonate level suggesting chronic compensation for respiratory acidosis.
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 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.
