Respiratory System Compliance
Mostrando 13-24 de 33 artigos, teses e dissertações.
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13. Efeitos da adição de polietilenoglicol ao surfactante exógeno no tratamento da síndrome de aspiração de mecônio em coelhos recém-nascidos / Effects of polyethylene glycol added to exogenous surfactant for meconium aspiration syndrome treatment in newborn rabbits
Meconium is known to be a potent inactivator of pulmonary surfactant, and exogenous surfactant treatment for meconium aspiration syndrome failed to decrease mortality. A number of studies have shown, in vitro, that the addition of polymers such as polyethylene glycol (PEG) to the surfactant maintains good surface activity in the presence of meconium. In the
Publicado em: 2007
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14. RepercussÃes cardio-respiratÃrias da manobra de recrutamernto alveolar em cÃes submetidos à lesÃo pulmonar aguda unilateral
Cardiopulmonary repercussion from Alveolar Recruitment Maneuver (ARM) was analysed in dogs, which had undergone right acute lung injury (ALI) induced by 0.9% saline solution lavage warmed at 38o C. ALI group (n=6) had undergone a right ALI, while in ARM group (n=6), underwent recruitment maneuver after induction unilateral ALI. Respiratory mechanical paramet
Publicado em: 2004
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15. Assessment of factors that influence weaning from long-term mechanical ventilation after cardiac surgery
OBJECTIVE: To analyze parameters of respiratory system mechanics and oxygenation and cardiovascular alterations involved in weaning tracheostomized patients from long-term mechanical ventilation after cardiac surgery. METHODS: We studied 45 patients in their postoperative period of cardiac surgery, who required long-term mechanical ventilation for more than
Arquivos Brasileiros de Cardiologia. Publicado em: 2003-03
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16. Fetal lung compliance in premature and term lambs after two methods of in utero repair of diaphragmatic hernia.
BACKGROUND--In utero surgery was used to correct a surgically induced model of congenital diaphragmatic hernia (CDH) in premature and term lambs, resulting in an improvement in lung mechanics at birth. METHODS--The differences between the in utero "patch" repair method and the "silo" repair method were assessed in 55 lambs by measuring the static respiratory
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17. Immune-mediated inflammation directly impairs pulmonary function, contributing to the pathogenesis of Pneumocystis carinii pneumonia
The clinical severity of Pneumocystis carinii pneumonia (PCP) correlates closely with the appearance of pulmonary markers of inflammation. Therefore, a model system was developed whereby physiological studies could be performed on live mice to determine the extent to which pulmonary inflammation contributes to respiratory impairment during PCP. P. carinii–
American Society for Clinical Investigation.
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18. Abnormalities of lung mechanics in young asthmatic children.
Measurements of total compliance of the respiratory system by the weighted spirometer technique and of the functional residual capacity by helium gas dilution were attempted in 86 asthmatic children aged 2.2-7.9 years. In all but six of the 86 children reliable measurements could be obtained. Significantly raised functional residual capacity was detected in
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19. Relationship between Frequency Dependence of Lung Compliance and Distribution of Ventilation
The previously demonstrated empirical association between frequency dependence of lung compliance and distribution of ventilation, the latter determined by the N2 washout technique, was confirmed by establishing a mathematical link between the two tests. By assuming a two-compartment system with known compliances and making corrections for Pendelluft and com
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20. Static respiratory compliance in the newborn. II: Its potential for improving the selection of infants for early surfactant treatment.
Static respiratory system compliance (Crs) and lecithin/sphingomyelin (L/S) ratios in tracheal aspirates were estimated in two independent groups of mechanically ventilated infants. Crs was measured rapidly at the cotside using a passive expiratory flow technique and L/S ratios were estimated in the laboratory by high performance liquid chromatography. In th
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21. Idiopathic scoliosis. Gas exchange and the age dependence of arterial blood gases.
The aims were to examine the gas exchange and arterial blood gas abnormalities among patients with scoliosis, and the correlation of these abnormalities with age and severity of deformity. Means among 51 patients were as follows: age 25.4 +/- 17.5 yr, angle of scoliosis 80.2 +/- 29.9 (SD), vital capacity 1.94 +/- 0.91 (SD) (i.e. 60.6 +/- 19.2% of predicted),
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22. Static respiratory compliance in the newborn. I: A clinical and prognostic index for mechanically ventilated infants.
Accurate measures of the severity of respiratory disease are important, both clinically and epidemiologically. The apparent prognostic value of static respiratory system compliance (Crs) on the first day and mean appropriate fractional inspired oxygen (FIO2) in the first 12 hours of life were compared in 48 infants who received mechanical ventilation in a re
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23. Experimental asbestosis: an investigation of functional and pathological disturbances. I. Methods, control animals and exposure conditions.
The measurement of respiratory function and quantitative assessment of changes in lung morphology are described in a long-term study of asbestos-exposed guinea pigs. Resistance and dynamic compliance of the guinea pig respiratory system were measured non-destructively, and the tidal volume and rate of spontaneous breathing were also determined. A point count
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24. Measurement of pressure-volume curves in patients on mechanical ventilation: methods and significance
Physiological background concerning mechanics of the respiratory system, techniques of measurement and clinical implications of pressure-volume curve measurement in mechanically ventilated patients are discussed in the present review. The significance of lower and upper inflection points, the assessment of positive end-expiratory pressure (PEEP)-
BioMed Central.