A cross sectional study was carried out to determine the prevalence of bronchial hyperresponsiveness and asthma in 3067 students aged 11-17 years in an urban and a rural area of Guangzhou (Canton), China. The methods used included a self administered questionnaire, a histamine bronchial provocation test, and allergen skinprick tests. Bronchial hyperresponsiveness was defined as a 20% fall in FE...

Techniques for one-lung ventilation (OLV) can be accomplished in two ways: The first involves the use of a double-lumen endotracheal tube (DLT). The second involves blockade of a mainstem bronchus (bronchial blockers). Bronchial blockade technology is on the rise, and in some specific clinical situations (e.g., management of the difficult airway during OLV or selective lobar blockade) it can of...

The bronchial circulation, as opposed to the pulmonary circulation, is the likely source of the edema and inflammatory cells that contribute to airflow obstruction and airway narrowing associated with asthma and pulmonary edema. The purpose of this study was to understand the mechanism of edema formation and inflammation in airway walls. Therefore, we sought first to determine the normal bronch...

The interest which is shown in the more recent European literature in perforative bronchial lesions is mainly the result of two factors: the more frequent application of radiologic1’ 2 bronchoscopic ‘ and bronchographic4 technics in the evaluation of bronchial lesions, and the increased emphasis on the importance of the lymphatic system in the pathogenesis of pulmonary tuberculosis. The latter ...

OBJECTIVES Ever since the discovery of Mycobacterium tuberculosis in 1882, many diagnostic methods have been developed. However "The gold standard" for the diagnosis of tuberculosis (TB) is still the demonstration of acid fast Bacilli (AFB) by microscopic examination of smear or bacteriological confirmation by culture method. MATERIALS AND METHODS In suspected 75 patients with active pulmonar...

We have shown that an inhaled glucocorticosteroid (GS) causes alpha(1)-adrenergic antagonist-blockable, rapid, and transient bronchial vasoconstriction in healthy and asthmatic subjects. Steroids inhibit norepinephrine (NE) uptake by non-neuronal cells, thereby increasing NE concentration at alpha-adrenergic receptor sites. This could explain the GS-induced bronchial vasoconstriction. We theref...

In its original concept, the term “allergy” was used to denote the changed state of the organism that followed the parenteral introduction of an antigen. Although the role of the adrenal corticoids in relation to this altered tissue state is not clear, it appears that in some way they interfere with tissue production of substances which are detrimental to cellular integrity, and thus permit a r...

BACKGROUND A very weak relationship has been reported between the health-related quality of life (HRQL) of patients with asthma and their degree of airway hyper-responsiveness (AHR), evaluated in terms of sensitivity. However, this relationship still has not been sufficiently explored for bronchial reactivity indices. OBJECTIVES To analyse the relationship between bronchial reactivity and sen...

BACKGROUND Both the advancement of visual techniques and intensive progress in perinatal medicine result in performing airway management in the fetus and neonate affected by life-threatening malformations. This study aimed to examine the 3 tracheo-bronchial angles, including the right and left bronchial angles, and the interbronchial angle, in the fetus at various gestational ages. MATERIAL A...

27 28 Culturing of bacteria from bronchial secretions in respiratory patients has low 29 sensitivity and does not allow for complete assessment of microbial diversity across the 30 different bronchial compartments. In addition, a significant number of clinical studies 31 are based on sputum samples and it is not known to what extent they describe the real 32 diversity of the mucosa. In order to...