Central Sleep Apnea

Shahrokh Javaheri

doi:10.1002/cphy.c110057

Central Sleep Apnea

2013-01-01

155

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AI

DOI：10.1002/cphy.c110057

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Neurophysiologically, central apnea is due to a temporary failure in the pontomedullary pacemaker generating breathing rhythm. As a polysomnographic finding, central apneas occur in many pathophysiological conditions. Depending on the cause or mechanism, central apneas may not be clinically significant, for example, those that occur normally at sleep onset. In contrast, central apneas occur in a number of disorders and result in pathophysiological consequences. Central apneas occur commonly in high-altitude sojourn, disrupt sleep, and cause desaturation. Central sleep apnea also occurs in number of disorders across all age groups and both genders. Common causes of central sleep apnea in adults are congestive heart failure and chronic use of opioids to treat pain. Under such circumstances, diagnosis and treatment of central sleep apnea may improve quality of life, morbidity, and perhaps mortality. The mechanisms of central sleep apnea have been best studied in congestive heart failure and hypoxic conditions when there is increased CO2 sensitivity below eupnea resulting in lowering eupneic PCO2 below apneic threshold causing cessation of breathing until the PCO2 rises above the apneic threshold when breathing resumes. In many other disorders, the mechanism of central sleep apnea (CSA) remains to be investigated. (C) 2013 American Physiological Society. Compr Physiol 3:141-163, 2013.

Keyword:

POSITIVE AIRWAY PRESSURE

CHEYNE-STOKES RESPIRATION

PRIMARY ALVEOLAR HYPOVENTILATION

CONGESTIVE-HEART-FAILURE

CEREBRAL-BLOOD-FLOW

PRIMARY PULMONARY-HYPERTENSION

INSPIRATORY MOTOR OUTPUT

EYE-MOVEMENT SLEEP

CAROTID-BODY

CARBON-DIOXIDE

Central Sleep Apnea

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