Airway Resistance
Effect of Isoproterenol Inhalation on Airway Resistance in Chronic Bronchopulmonary Dysplasia
... This study demonstrated that in infants with BPD, 30 minutes after administration of isoproter- enol aerosol, airway resistance decreased and spe- cific airway conductance increased.. A [r] ...
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Bronchial thermoplasty reduces airway resistance
... Methods: Eighteen consecutive patients, with severe asthma (57.6 ± 14.2 years) were evaluated by spirometry and plethysmography at three time points: (i) baseline, (ii) left lung treated but right lung untreated and ...
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Positive correlation of airway resistance and serum asymmetric dimethylarginine level in COPD patients with systemic markers of low-grade inflammation
... Abstract: The major feature of COPD is a progressive airflow limitation caused by chronic airway inflammation and consequent airway remodeling. Modified arginase and nitric oxide synthase (NOS) pathways are ...
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Study the Effect of Spironolactone in Airway Resistance with Impulse Oscillometry in Patients with Congestive Heart Failure
... Exclusion criteria for patients were previous diagnosis of chest disease, or symptoms and signs suggestive of primary chest disease and those with an FEV1 less than 75% predicted. All patients had no evidence of primary ...
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A NEW METHOD FOR MEASURING AIRWAY RESISTANCE IN MAN USING A BODY PLETHYSMOGRAPH: VALUES IN NORMAL SUBJECTS AND IN PATIENTS WITH RESPIRATORY DISEASE
... A NEW METHOD FOR MEASURING AIRWAY RESISTANCE IN MAN USING A BODY PLETHYSMOGRAPH: VALUES IN NORMAL SUBJECTS AND IN PATIENTS WITH RESPIRATORY DISEASE Arthur B... A NEW METHOD FOR MEASURING[r] ...
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Airway resistance at maximum inhalation as a marker of asthma and airway hyperresponsiveness
... higher airway resistance at maximal inspiration compared to ...minimum resistance achieved at maximum inspiration (Rmin) as representing the maximum airway dilation achievable (averaged over ...
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Discrimination between upper versus lower airway components to the rise of total airway resistance measured by Pennock’s method after nasal irritant challenge
... Data representing the airway resistance are expressed as mean and standard error of mean. Analysis of variance (ANOVA for repeated measurements) was used to ana- lyze the data. As with any ANOVA, repeated ...
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PHYSIOLOGICAL FACTORS AFFECTING AIRWAY RESISTANCE IN NORMAL SUBJECTS AND IN PATIENTS WITH OBSTRUCTIVE RESPIRATORY DISEASE
... The effects on airway conductance the reciprocal of airway resistance of chest strapping, bronchomotor drugs, exercise, forced breathing, oxygen, carbon dioxide, and old age, were measur[r] ...
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The Relationship Between Airway Resistance, Airway Conductance and Lung Volume in Subjects of Different Age and Body Size
... However, when airway conductance was plotted against lung volume there appeared to be a linear relationship." It was decided therefore to relate airway conductance 6 rather than airway r[r] ...
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Comparison of Catecholamine Values Before and After Exercise-Induced Bronchospasm in Professional Cyclists
... respiratory airway resistance and the flow of inspired air, it is reasonable to hypothesize that, in susceptible athletes with exercise-induced bronchospasm, the concentration of catecholamine at the end of ...
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Relative Sensitivity of Different Pulmonary Function Tests in the Evaluation of Exercise-Induced Asthma
... Pulmonary function measurements included airway resistance (Raw), specific airway conductance (SG awl’ functional residual capacity (FRC), peak expiratory flow rate (PEFR), maxi- mum mid[r] ...
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Original Article Effect of early inhalation of budesonide on cyclinD1, VEGF and α-SMA in asthmatic rats
... substances, airway smooth muscle cells can not only proliferate, enlarge and pro- mote airway remodeling, but also cause the conversion of airway smooth muscle pheno- types from a contractile ...
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Acute Effects of Breathing Inert Dust Particles and of Carbachol Aerosol on the Mechanical Characteristics of the Lungs in Man Changes in Response after Inhaling Sympathomimetic Aerosols
... On five human subjects without chronic respiratory disease, measurements of pulmonary compliance, total pulmonary resistance esophageal pressure method, airway resistance, pulmonary tiss[r] ...
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Comparison of the effects of salmeterol/fluticasone propionate with fluticasone propionate on airway physiology in adults with mild persistent asthma
... in airway resistance in patients with mild asthma is important, because it suggests that even in the context of minimal evidence of lung function impair- ment using spirometry, there is significant ...
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Original Article Emodin inhibited ozone stress-induced airway hyperresponsiveness by regulating epithelial protection mechanisms against injury
... emodin, airway resistance and pulmonary inflammation decreased significantly, lung pathological struc- ture changed, and epithelial function improved, which have the same exact anti-inflammatory effects ...
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Numerical study of the effects of bronchial structural abnormalities on respiratory flow distribution
... normal airway and the abnormal airways of the four cases, it was apparent that the pressure difference in the nasal cavity was approxi- mately 50% of the entire respiratory tract during expiration and the largest ...
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Treatment of Chronic Temporomandibular Joint Pain and Sleep Disordered Breathing by Teledontic and Telegnathic Protocol Utilizing Total Joint Replacement
... The sleep study revealed that the patient had mild OSA with apnea hypopnea index (AHI) of 6.8 and upper airway resistance syndrome (URAS) with respira- tory disturbance index (RDI) of 31.5 and lowest blood ...
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Functional respiratory imaging: heterogeneity of acute exacerbations of COPD
... in resistance have made it into daily clinical ...on resistance are not routinely assessed at ...of airway resistance at several levels and has the potential to demonstrate and visualize dif- ...
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Effect of non-surgical maxillary expansion on the nasal septum deviation: a systematic review
... nasal resistance more than posterior and superior septal deviations [31, ...nasal airway because it is considered to modify the nasal valve area, which represents the nar- rowest nasal cross-sectional area ...
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Lung Tissue Resistance in Diffuse Interstitial Pulmonary Fibrosis
... pulmonary resistance averaged 3.53 ± 1.56 cm H 2 O per L per second; airway resistance, ...tissue resistance, ...tissue resistance was on an average about four times higher in patients ...
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