Nasal Resistance
Mostrando 25-36 de 86 artigos, teses e dissertações.
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25. Susceptibility of S. pneumoniae to various antibiotics among strains isolated from patients and healthy carriers in different regions of Brazil (1999-2000)
Resistance of microbes to commonly used antibiotics became a major concern at the end of the last century. Because Streptococcus pneumoniae is the most common pathogen in respiratory infections, we conducted microbiological assessment of drug susceptibility patterns among strains collected from two different population groups: 1) adult and pediatric patients
Brazilian Journal of Infectious Diseases. Publicado em: 2001-12
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26. O valor da rinomanometria computadorizada pre-operatoria, nas hiperplasias obstrutivas das vegetações adenoides, na infancia
Study the value of Computerized Rhinomanometry in children with adenoids for surgical indication of adenoidectomy. MATERIAL AND METHOD Rhinomanometric meditions realized by Computerized Rhinomanometer Rhinotest (Medi comes - RF A), with bilateral active anterior rhinomanometer, and lateral nasopharyngeal radiograph to mesure the degree of obstruction (by COH
Publicado em: 1996
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27. Effects of hypercapnia and hypoxia on nasal vasculature and airflow resistance in the anaesthetized dog.
The experiments were performed on anaesthetized dogs which breathed spontaneously or were artificially ventilated and paralysed. The spontaneous nasal arterial blood flow was measured on one side of the nose while nasal vascular resistance was determined on the other side simultaneously. Nasal arterial blood flow was measured by means of an electromagnetic f
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28. Lung reflexes and nasal vascular resistance in the anaesthetized dog.
1. In pentobarbitone-anaesthetized dogs the nasal vasculature was perfused on both sides, and nasal vascular and airflow resistances were measured together with blood pressure, heart rate and tidal airflow. 2. Capsaicin was injected intravenously to stimulate lung C-fibre receptors, and veratrine to stimulate pulmonary stretch receptors and cardiac receptors
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29. Control of nasal vasculature and airflow resistance in the dog.
Nasal vascular and airflow resistances have been measured in dogs, simultaneously on both sides separately. Vascular resistance was measured either by constant flow perfusion of the terminal branch of the maxillary artery (which supplies, via the sphenopalatine artery, the nasal septum, most of the turbinates and the nasal sinuses) or by measuring blood flow
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30. Autonomic nervous control of nasal vasculature and airflow resistance in the anaesthetized dog.
1. In pentobarbitone-anaesthetized dogs with constant-flow vascular perfusion of nasal mucosa on both sides, nasal airway resistance, vascular resistance, vascular capacitance (via changes in total venous outflow) and blood flow in the anterior and posterior venous systems were measured. 2. Electrical stimulation of the cut peripheral ends of the cervical sy
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31. Nasal response of rhinitic and non-rhinitic subjects to histamine and methacholine: a comparative study.
The nasal responses to provocation with histamine and methacholine were compared in 20 subjects with and 20 without rhinitis. Two variables were measured: nasal airways resistance and the development of rhinorrhoea. Histamine had a greater effect than methacholine in increasing nasal airways resistance while the converse was true for rhinorrhoea. Rhinitic su
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32. The nasal response to exercise and exercise induced bronchoconstriction in normal and asthmatic subjects.
Two studies were carried out to test the hypothesis that the fall and recovery of nasal resistance after exercise in asthmatic and non-asthmatic subjects are related to the development of bronchoconstriction after exercise. In study 1 nasal resistance (posterior rhinomanometry) and specific airway resistance (sRaw) were measured before challenge and one, fiv
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33. Effect of respiratory obstruction on the arterial and venous circulation in animals and man
The glottis of man, which widens on inspiration, is a choked point on the airway, its lumen even when maximally open being less than that of the trachea. The glottis, however, is not the only point of obstruction, the nose being usually of greater significance, especially in carnivorous species. The nose does not change in calibre during respiration. Experim
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34. A study of the action of bradykinin and bradykinin analogues in the human nasal airway.
1. The aim of this study was to investigate the action of bradykinin on resistance to airflow and on vascular permeability in the human nasal airway, and to explore the receptor mediating these effects. 2. Aerosol administration of bradykinin (10-1000 micrograms) caused a dose-related increase in nasal airway resistance (NAR) and an increase in albumin conte
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35. Comparative nasal effects of bradykinin and histamine: influence on nasal airways resistance and plasma protein exudation.
BACKGROUND--Bradykinin may contribute to the pathogenesis of allergic rhinitis. Like histamine, nasal challenge with bradykinin induces rhinorrhoea, nasal blockage, and plasma protein leakage. Their comparative nasal potencies have not, however, been fully elucidated. METHODS--Three double blind, randomised, placebo controlled and cross-over studies were und
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36. Molecular Characterization of Resistance to Mupirocin in Methicillin-Susceptible and -Resistant Isolates of Staphylococcus aureus from Nasal Samples
A total of 15 of 101 (14.8%) nasal methicillin-resistant Staphylococcus aureus (MRSA) isolates exhibited mupirocin resistance (Mupr) compared with 1 of 154 (0.6%) methicillin-susceptible Staphylococcus aureus isolates. A total of 14 (93%) isolates exhibiting high-level Mupr belonged to a single clone. Horizontal plasmid transfer and transmission of Mupr stra
American Society for Microbiology.