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Cheyne-Stokes Respiration
Aka: Cheyne-Stokes Respiration
- See Also
- Breathing Patterns in Brain Injury
- Acute Respiratory Failure
- Signs
- Alternating hyperpnea and apnea at regular intervals (30 second to 2 minute cycles)
- Smooth waxing and waning in depth of respiration
- Pathophysiology
- Sites of Injury
- Bilateral Cerebral Hemisphere dysfunction or
- Diencephalon dysfunction (posterior forebrain structures including the Thalamus)
- Mechanism
- See Respiratory Physiology
- Hyperventilation with rapid and deep breathing results in hypocapnia (decreased pCO2)
- Decreased pCO2 suppresses respiration resulting in brief apnea
- Apnea results in rise in CO2 again, allowing for Hyperventilation and the cycle repeats itself
- Causes
- Cerebrovascular Accident
- Traumatic Brain Injury
- Intracranial Mass
- Congestive Heart Failure
- Metabolic encephalopathy
- Medications (e.g. Morphine)
- Carbon Monoxide Poisoning