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11 Ιουλ 2024 · Alveolar hypoventilation, defined as an elevation in PaCO₂ to levels >45 mmHg, can occur with several disorders: obesity hypoventilation syndrome, restrictive thoracic disorders, central sleep apnea syndromes, and COPD.
11 Ιουν 2023 · Alveolar hypoventilation: Alveolar hypoventilation increases the arterial partial pressure of carbon dioxide (PaCO2). The alveolar gas equation demonstrates that an increase in PaCO2 causes a decrease in the alveolar partial pressure of oxygen (PAO2).
31 Μαΐ 2023 · Hypoventilation, or shallow, short breathing, causes carbon dioxide to build up in the blood and decreases oxygen levels. Causes include having obesity, genetic mutations, and certain underlying conditions. For some people, there is no known cause.
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 exchange of gas between the alveoli and the external environment. It is the process by which oxygen is brought into the lungs from the atmosphere and by which the carbon dioxide carried into the lungs in the mixed venous blood is expelled from the body.
Chronic alveolar hypoventilation, defined as a sustained increase in PCO 2 exceeding 45 mm Hg, is a condition commonly encountered by the chest physician.
Primary alveolar hypoventilation ("Ondine curse") is a rare syndrome of unknown cause characterized by inadequate alveolar ventilation despite normal neurologic function and normal airways, lungs, chest wall, and ventilatory muscles. Hypoventilation is even more marked during sleep.
