central apnea


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apnea

 [ap´ne-ah]
cessation of breathing, especially during sleep. The most common type is adult sleep apnea. Central apnea in which there is failure of the central nervous system drive to respiration sometimes occurs in infants younger than 40 weeks after the date of conception.
adult sleep apnea frequent and prolonged episodes in which breathing stops during sleep. Diagnosis is confirmed by monitoring the subject during sleep for periods of apnea and lowered blood oxygen levels. Sleep apnea is divided into three categories: (1) obstructive, resulting from obstruction of the upper airways; (2) central, caused by some pathology in the brain's respiratory control center; and (3) mixed, a combination of the two (see above).
Treatment. Obstructive and mixed types are amenable to therapy. Since many sleep apnea patients are overweight, weight loss improves the symptoms. Central sleep apnea is the most difficult to control. Medications to stimulate breathing have not proven beneficial. Mechanical ventilation or administration of oxygen during the night may help some patients.

The most common treatment for obstructive sleep apnea is nasal continuous positive airway pressure, which the patient uses during sleep; the positive pressure exerted prevents the airway from obstructing. Another method that may be tried is a dental appliance to move the jaw forward during sleep. In the most refractory cases, such as when an anatomical airway obstruction can be demonstrated, surgery to remove it may be performed after consultation with a surgeon experienced in evaluating and treating such obstructions. Another treatment that is occasionally used is insertion of a special type of tracheostomy tube that can be plugged during the day for normal use of the upper airway and opened at night to bypass upper airway obstruction
central apnea (central sleep apnea) see adult sleep apnea.
deglutition apnea a temporary arrest of the activity of the respiratory nerve center during an act of swallowing.
initial apnea a condition in which a newborn fails to establish sustained respiration within two minutes of delivery.
late apnea cessation of respiration in a newborn for more than 45 seconds after spontaneous breathing has been established and sustained.
mixed apnea see adult sleep apnea.
obstructive apnea (obstructive sleep apnea) see adult sleep apnea.
primary apnea cessation of breathing resulting when a fetus or newborn infant is deprived of oxygen; exposure to oxygen and stimulation usually restore respiration.
prolonged infantile apnea sudden infant death syndrome.
secondary apnea a period of time following primary apnea during which continued asphyxia of the fetus or newborn, with a fall in blood pressure and heart rate, necessitates artificial ventilation for resuscitation and reestablishment of ventilation.
sleep apnea transient periods when breathing stops during sleep; see adult sleep apnea.

cen·tral ap·ne·a

apnea as the result of medullary depression that inhibits respiratory movement.

cen·tral ap·ne·a

(sen'trăl ap'nē-ă)
Apnea as the result of medullary depression, which inhibits respiratory movement.

cen·tral ap·ne·a

(sen'trăl ap'nē-ă)
Apnea due to medullary depression that inhibits respiratory movement.
References in periodicals archive ?
When the craniofacial malformations are also associated with abnormalities of the cerebral cortex or brain stem, then other sleep-disordered breathing patterns, such as central apnea and hypoxia, can occur.
In mixed apnea, a period of central apnea is followed by a period of obstructive apnea before regular breathing resumes.
This is an all too painful scenario for Laurie, whose biological son Chris, died at the age of 5 from complications of central apnea.
Freedman suggested APAP machines that use a forced oscillation technique (FOT) may be better suited than flow-based APAP for evaluation of central apnea.
One of the currently most compelling hypotheses for the occurrence of SIDS is an abnormality of brain development and maturation, with a tendency to central apnea and disturbed cardiorespiratory control mechanisms (Goldwater 2003; Harper 2000; Kahn et al.
Apnea might be the result of a lack of inspiratory effort, called central apnea, or of ineffective inspiratory effort against a collapsing upper airway, called obstructive apnea.
The monitor detects and alarms for periods of central apnea and high or low heart rates.
Physicians need to know whether the patient is experiencing an obstructive or central apnea to make a decision about appropriate management.
The primary endpoint of the BREATHE study is the apnea-hypopnea index (AHI) at one month for two groups of patients: those diagnosed with central apnea (highly prevalent in heart failure) and those with obstructive apnea.
With the advent of sleep medicine technology and treatment it wasn't long before a "new" kind of central apnea was discovered in some sleeping patients.
Sleep apnea may persist after surgery, but these episodes are likely to represent central apnea, and they are likely to be fewer in number.
On a PSG, Catathrenia looks like a central apnea since there is no airflow or thoracic effort on the respiratory channels.

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