Intermittent hypoxia and unstable breathing are key features of obstructive sleep apnoea (OSA), the most common pathological problem of breathing in sleep.
Findings in Phox2b27Ala/+ knock-in mice consisted of unstable breathing with apneas, absence of the ventilatory response to hypercapnia, death within a few hours after birth, and absence of the retrotrapezoid nucleus (RTN).
ETI: apnoea or unstable breathing pattern, or severe dysnea.
14 In elite climbers, basilar CBFV reduces at altitude, 13 perhaps allowing build up of CO2 and, therefore, unstable breathing.
But "Dallas 1963" places the assassin in context as a malleable, unstable figure breathing the city's extraordinarily feverish air.
Very high levels of NAVA, however, might result in unstable periodic breathing patterns with delivery of high tidal volume followed by periods of apnea and signs of discomfort [ 65].
Nasal obstruction is also associated with OSA, and possible mechanisms such as the Starling resistor model, unstable oral breathing, nasal-ventilatory reflex and nitric oxide have been identified [ 21].
More commonly, unstable or irregular breathing is seen in human infants that are born prematurely, and sometimes in infants born at full term.
To be told your handwriting shows you're "mentally unstable", or "You breathe wrong", to not be allowed to manage your own finances, or to leave a job where you are miserably unhappy, with the command: "You will stay" – these things are not normal, and they are not love.
After 11 September 2001, the patient developed sleep apnea, chronic bronchitis, vocal cord dysfunction, posttraumatic stress disorder, chest pain, difficulty breathing, heartburn, unstable angina, GERD, shortness of breath, and cough.
The mechanism that produces the Cheyne-Stokes ventilation pattern is still argued, but it may entail unstable feedback regulation of breathing.
