What is central neurogenic hyperventilation?
Central neurogenic hyperventilation (CNH) is a rare condition first described by Plum and Swanson. 1. Diagnostic criteria for CNH are hyperventilation that persists during sleep, low arterial PaCO2, high arterial PaO2, and high arterial pH in the absence of drug or metabolic causes.
What is central neurogenic hypoventilation?
Central neurogenic hypoventilation occurs when the medulla respiratory centers are not responding to appropriate stimuli. Central neurogenic hypoventilation may occur with head trauma, cerebral hypoxia, and narcotic suppression.
Why do stroke patients hyperventilate?
HYPERVENTILATION IN PATIENTS WITH HEMORRHAGIC STROKE Hyperventilation is frequently applied in this patient population to temporarily decrease an elevated ICP and prevent an impending herniation.
Can a stroke cause hyperventilation?
The lesions in brain due to stroke can cause hyperventilation leading to respiratory alkalosis [5].
What part of the brain controls hyperventilation?
medulla
The medulla and the pons are involved in the regulation of the ventilatory pattern of respiration.
What is central hypoventilation?
Congenital central hypoventilation syndrome (CCHS), also known as “Ondine’s curse,” is a rare neurological disorder characterized by inadequate breathing during sleep and in more severely affected individuals, during waking periods as well.
What is central hyperventilation syndrome?
Central hypoventilation syndrome, sometimes referred to as Ondine’s curse, is an inability of the brain to detect changes in carbon dioxide levels in the body during sleep. The human body determines the amount of oxygen it needs by monitoring how much carbon dioxide is in the blood.
What are the effects of hyperventilating?
It causes a decrease in the amount of a gas in the blood (called carbon dioxide, or CO2). This decrease may make you feel lightheaded, have a rapid heartbeat, and be short of breath. It also can lead to numbness or tingling in your hands or feet, anxiety, fainting, and sore chest muscles.
What happens in the brain during hyperventilation?
Hyperventilation causes cerebral vasoconstriction, which reduces cerebral blood flow and volume to decrease the oxygen supply in both normal and injured areas. Hyperventilation decreases the intracranial pressure and relaxes the brain.
What does hyperventilating do to your brain?