Lung Volume Changes, Occlusion Pressure and Chest Wall Configuration in Human Infants
نویسندگان
چکیده
منابع مشابه
Sigmoidal equation for lung and chest wall volume-pressure curves in acute respiratory failure.
To assess incidence and magnitude of the "lower inflection point" of the chest wall, the sigmoidal equation was used in 36 consecutive patients intubated and mechanically ventilated with acute lung injury (ALI). They were 21 primary and 5 secondary ALI, 6 unilateral pneumonia, and 4 cardiogenic pulmonary edema. The lower inflection point was estimated as the point of maximal compliance increase...
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The total respiratory compliance of anesthetized, relaxed adults has been found to have a lower value than that in awake subjects (1, 2). The probable explanation for this fact is the inability of the conscious individual to relax as completely as does the anesthetized patient. The values observed in unconscious subjects, therefore, more closely approximate those of narcotized patients in need ...
متن کاملLung Volume Reduction in Emphysema Improves Chest Wall Asynchrony
BACKGROUND Lung volume reduction (LVR) techniques improve lung function in selected patients with emphysema, but the impact of LVR procedures on the asynchronous movement of different chest wall compartments, which is a feature of emphysema, is not known. METHODS We used optoelectronic plethysmography to assess the effect of surgical and bronchoscopic LVR on chest wall asynchrony. Twenty-six ...
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To investigate the effect of lung volume on chest wall and lung mechanics in the rats, we measured the impedance (Z) under closed- and open-chest conditions at various positive end-expiratory pressures (0-0.9 kPa) by using a computer-controlled small-animal ventilator (T. F. Schuessler and J. H. T. Bates. IEEE Trans. Biomed. Eng. 42: 860-866, 1995) that we have developed for determining accurat...
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Prolonged high-intensity ventilation is associated with the development of rapid shallow breathing with decreased end-inspiratory volumes of all chest wall compartments. During respiratory muscle endurance training using normocapnic hyperpnoea, tidal volume (V(T)) is normally kept constant. The aim of this study was to investigate possible changes in muscle recruitment during constant-V(T) hype...
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ژورنال
عنوان ژورنال: Pediatric Research
سال: 1979
ISSN: 0031-3998,1530-0447
DOI: 10.1203/00006450-197904000-00008