When large volumes of air are inhaled at rapid rates of ventilation, substantial segments of the tracheobronchial tree become involved in the conditioning process and the inspirate does not reach body conditions of temperature and humidity until it passes well into the peripheral bronchi. To determine if the manner in which ventilation is elevated is an important factor in producing this respon...

Tuberculous tracheobronchitis is a frequent and important complication or concomitant finding in pulmonary tuberculosis. The stage, extent and course of the pathological bronchial changes usually determine the type of therapeutic procedures to be used for the control of the pulmonary tuberculosis. Treatment of tuberculous tracheobronchitis was unsatisfactory prior to the use of streptomycin. Th...

Amyloidosis is a disease caused by improper three-dimensional folding of precursor proteins, which results in formation of protein aggregates, amyloid fibrils, that cause cell and organ damage. Amyloidosis localized to the respiratory tract is considered rare, with a spectrum of clinical symptoms. We report a case of a 72 year old man who presented with a laryngeal mass, found to be an amyloido...

One of the main complications associated with anesthesia is aspiration of gastric contents into the tracheobronchial tree. The morbidity and mortality will vary widely depending on the volume and, more particularly, on the chemical nature of the fluid aspirated. Aspiration may be the result of either vomiting or regurgitation. Regurgitation is a passive process which is dependent on a pressure ...

OBJECTIVE Ear, nose and throat foreign bodies are common in ENT clinical practice. This study was designed to establish the local data of otorhinolaryngeal foreign bodies in term of prevalence among paediatric and adult groups, the clinical features, types of foreign body at different sites, and laterality of foreign bodies. METHOD This study was carried out at ENT department, Sarawak General...

Tracheobronchial tree is reported to harbor benign processes like inflammatory origin, foreign bodies, pulmonary aspirations, mucous plugs and benign tumors (most of them of mesenchymal origin), as well as malign processes: primary (of epithelial origin), and secondary (by direct infiltration or hematogenous spread).1,2 We report a patient with history of squamous carcinoma in the right lung (s...

Primary localized amyloidosis of the airways is an uncommon disorder characterized by amyloid deposits in the airway mucosa. In contrast to systemic amyloidosis other organs are not involved. Among the entities of airway amyloidosis, tracheobronchial amyloidosis is comparatively the most common subtype in the lower respiratory tract and laryngeal amyloidosis in the upper respiratory tract. The ...

Rosai-Dorfman Disease (RDD) is a rare non-neoplastic entity, also known as sinus histiocytosis with massive lymphadenopathy (SHML), characterized by a benign proliferation of histiocytes in lymph nodes. Localized forms of RDD involving the tracheobronchial tree are very rare. There is no consensus regarding the management of central airway forms and recurrence is frequent. We report the case of...

OBJECTIVE A foreign body aspiration in the tracheobronchial tree is a dangerous medical condition in the childhood period. Although rigid bronchoscopy is a safe procedure, it may cause complications. The aim of this study was to present our bronchoscopy experience and to evaluate the efficacy of pre-operative administration of nebulized albuterol and budesonide combination for reducing intra-op...

PURPOSE To calculate the hit probabilities by alpha-particles emitted by radon progeny for basal and secretory cell nuclei in the epithelium of the human tracheobronchial tree. MATERIALS AND METHODS The equilibrium activities on the surface of airway tubes were calculated using the ICRP66 model. The stopping-power and ranges of alpha-particles in tissue were adopted from ICRU49. A semi-analyt...