The practice of artificial tracheal prosthesis has been a major challenge to the entire surgical field worldwide until now. The previously applied prosthesis is " inner stent " type, which is unable to heal biologically with native trachea. The newly developed design, the Zhao's artificial trachea, uses a memory alloy mesh combined with traditional operation procedures. Following a 2‑year exper...

Earlier models of the human trachea have not taken the characteristic compliance of the trachea into account. Two tracheal models are presented, which simulate the compliance of the adult male human trachea, intended for more valid laboratory testing of the function of the cuffs of tracheal tubes. The two models simulate the conditions with and without controlled ventilation.

Imaging of the rib cage was analyzed by computed tomography (CT) in 14 children (mean age 3,5±1,25 years) with congenital malformation – tracheal bronchus. Tracheal bronchus found all an emergency on right side. The malformed has a different origin: from middle segment trachea, lower and most near bifurcation trachea. This bronchial is clinico-imaged bronchopulmonary changes pneumonic infiltrat...

A case of salivary gland type pleomorphic adenoma of the trachea in a 48-year-old woman is presented. Pleomorphic adenoma is extremely rare in the trachea. The behavior of this tumor in the trachea appears to be similar to its counterpart in other sites and distinctly different from the more frequently encountered epithelial tumors.

The course of changes within the upper respiratory tracts of turkey poults experimentally infected with Alcaligenes faecalis was studied. The initial change observed (5 days post-inoculation) was colonization of the upper respiratory tract by the bacterium. Changes in the nasal turbinates and trachea were first apparent as a focal loss of cilia but subsequently developed into a general loss of ...

tracheobronchopathia osteochondroplastica (to) is a rare and usually benign disorder affecting the trachea and occasionally the bronchi. a case of to was diagnosed in a 61 year old male farmer presenting with pulmonary infections and prolonged productive cough. a bronchoscopy revealed multiple nodular excrescences aong the anterolateral wall of the trachea and main bronchi. ct scans showed mode...

the stimulatory effect of the extract of portulaca oleracea (p. olerace) on β-adrenoceptor of tracheal smooth muscle was examined. to examine β-adrenoceptor stimulatory effect, concentration response curve to isoprenaline was obtained in pre-contracted tracheal smooth muscle in the presence of three concentrations of aqueous-ethanolic extract, propranolol and saline. values of ec50 (the effecti...

this study is the effects of inhalation toxic mixture of bleach and detergent was examined on the epithelial layer of trachea in the mice. in this study, 42 adult male mice nmri race weighing 35-40 gr and from age 8 to 10 weeks were divided into 6 experimental groups and one control group. experimental groups 1-2-3 with the using of chamber, as inhalation 20 minutes were exposure to spray the a...

BACKGROUND The pathogenesis of obliterative bronchiolitis after lung transplantation requires further elucidation. In this study we used rat trachea transplantation to examine the role of epithelium in the progression of obliterative airway disease. METHODS Normal and denuded (i.e., epithelium removed) trachea grafts from Lewis (LEW) and Brown Norway (BN) rats were transplanted sub-cutaneousl...