hypoventilation


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Related to hypoventilation: hyperventilation

hypoventilation

 [hi″po-ven″tĭ-la´shun]
a state in which there is a reduced amount of air entering the pulmonary alveoli (decreased alveolar ventilation), which causes an increase in arterial carbon dioxide level. See also hypopnea and bradypnea.

hy·po·ven·ti·la·tion

(hī'pō-ven'ti-lā'shŭn),
Reduced alveolar ventilation relative to metabolic carbon dioxide production, so that alveolar carbon dioxide pressure increases above normal.
Synonym(s):

hypoventilation

/hy·po·ven·ti·la·tion/ (-ven″tĭ-la´shun) reduction in amount of air entering pulmonary alveoli.
primary alveolar hypoventilation  impairment of automatic control of respiration, resulting in apnea during sleep.

hypoventilation

(hī′pə-vĕn′tl-ā′shən)
n.
Reduced or deficient ventilation of the lungs, resulting in reduced aeration of blood in the lungs and an increased level of carbon dioxide in the blood.

hypoventilation

[-ven′tilā′shən]
Etymology: Gk, hypo + L, ventilare, to fan
an abnormal condition of the respiratory system that occurs when the volume of air that enters the alveoli and takes part in gas exchange is not adequate for the body's metabolic needs. It is characterized by cyanosis, polycythemia, increased PaCO2, and generalized decreased respiratory function. Hypoventilation may be caused by an uneven distribution of inspired air (as in bronchitis), obesity, neuromuscular or skeletal disease affecting the thorax, decreased response of the respiratory center to carbon dioxide, or a reduced amount of functional lung tissue, as in atelectasis, emphysema, and pleural effusion. The results of hypoventilation are hypoxia, hypercapnia, pulmonary hypertension with cor pulmonale, and respiratory acidosis. Treatment includes weight reduction in cases of obesity, artificial respiration, and possibly tracheostomy. Compare hyperventilation. See also respiratory center.

hypoventilation

Medtalk A ↓ in depth/frequency of respiration. Cf Hyperventilation.

hy·po·ven·ti·la·tion

(hī'pō-ven-ti-lā'shŭn)
Reduced alveolar ventilation relative to metabolic carbon dioxide production, so that alveolar carbon dioxide pressure increases above normal.

hypoventilation

Reduced depth and rate of breathing.

Hypoventilation

Reduced ventilation in the lungs' air sacs resulting in above normal carbon dioxide pressure.
Mentioned in: Inhalation Therapies

hypoventilation (hīˈ·pō·vēnˈ·t·lāˑ·shn),

n breathing dysfunction characterized by insufficient respiration, resulting in inadequate oxygenation and build-up of excess carbon dioxide in the body.

hy·po·ven·ti·la·tion

(hī'pō-ven-ti-lā'shŭn)
Reduced alveolar ventilation relative to metabolic carbon dioxide production increases above.

hypoventilation,

n an abnormal condition of the respiratory system, characterized by cyanosis, polycythemia, increased carbon dioxide arterial tension, and generalized decreased respiratory function. Hypoventilation occurs when the volume of air that enters the alveoli and takes part in gas exchanges is not adequate for the metabolic needs of the body.

hypoventilation

reduction in the amount of air entering the pulmonary alveoli.
References in periodicals archive ?
His experience and expertise in evaluating and treating those with congenital central hypoventilation syndrome (CCHS) will be instrumental to the future success of ABD.
The study evaluated 163 patients at high-risk for hypoventilation (breathing at an abnormally slow rate) in the PACU following general surgery, enrolled at two hospitals in Japan between October 2014 and February 2015.
This phenomenon is known as hypopnoeic hypoventilation decreased tidal volume without a change in respiratory rate that causes an overall reduction in minute volume.
Sleep hypoventilation in hypercapnic chronic obstructive pulmonary disease: prevalence and associated factors.
They think she has a variant of congenital central hypoventilation syndrome.
We even tap the myths to describe body parts as in the Achilles tendon, and rare disorders such as Ondine's Curse (congenital central hypoventilation syndrome), a condition in which one lacks the autonomic control for breathing (you must remember to breathe, or die).
Other differentials for this patient's hypoxia/hypoxemia could include hypoventilation, right to left shunt, atrioseptal defects or a ventilation perfusion mismatch.
This relaxation increases the upper airway resistance during inspiration, leads to paralaryngeal collapse and hypoventilation, which end up with hypoxia and hypercapnia (3, 4).
A preliminary evaluation of a prospective study of pulmonary function studies and symptoms of hypoventilation in ALS/MND patients.
Aine, five, is one of just 60 people in the UK to suffer from Congenital Central Hypoventilation Syndrome (CCHS), a condition of the central nervous system where her body stops automatically controlling her breathing when she falls asleep.
When the staff further increased the dosage of morphine, they markedly increased the patient's susceptibility to further respiratory depression, hypoventilation and hypoxaemia.
As a result of or in conjunction with this, children develop functional breathing disorders such as mouth breathing, breathing pattern disorders, sleep-disordered breathing, sleep apnoea, hyperventilation and hypoventilation.