Tracheal stenosis has numerous possible etiologies, including iatrogenic trauma from an over-inflated endotracheal/tracheostomy tube cuff, malignancy, chronic inflammatory diseases (eg, sarcoidosis), and various collagen vascular diseases (eg, Wegener disease, relapsing polychondritis). If an underlying etiology cannot be identified, the condition is termed idiopathic tracheal stenosis. First r...

OBJECTIVE To describe the current practice of pediatric airway management at referring hospitals and the associated adverse events compared to a receiving tertiary pediatric ICU. METHOD Retrospective chart and transport record review of all emergency critical care transports to our Pediatric ICU over 3 years. Data regarding tracheal intubation procedure, pre-defined adverse Tracheal Intubatio...

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...

Reconstruction of long-segment tracheal defects requires a vascularized allograft. We report successful tracheal allotransplantation after indirect revascularization of the graft in a heterotopic position. Immunosuppressive therapy was administered before the operation, and the tracheal allograft was wrapped in the recipient's forearm fascia. Once revascularization was achieved, the mucosal lin...

Incorrect endotracheal placement of the tracheal tube can lead to serious complications, such as laryngeal nerve paralysis and accidental extubation [1]. In oral and maxillofacial surgery and dental procedure, the head of the patient was covered in drape, and an anesthesiologist cannot often see tracheal tube. In addition, surgeon (or dentist) may move the head of the patient. Flexion of the ne...

BACKGROUND This randomized single-blinded, cross-over study was done to evaluate the influence of the size of tracheal tubes on air leaks around the cuffs. METHODS In a benchtop model, the number of longitudinal folds on the cuffs was evaluated for different sizes of tracheal tubes. In an anesthetized patient study, thirty patients scheduled for elective surgery under general anesthesia were ...

In this study, the effects of carotid chemoreceptors on reflex tracheal constriction were investigated in anesthetized, paralyzed, and artificially ventilated mongrel dogs. Reflex tracheal constriction was measured as changes in the intratracheal pressure of an air-filled balloon introduced into the rostral side of the transected trachea. A hypoxic condition was produced by ventilating the dog ...

Drosophila tracheal terminal branches are plastic and have the capacity to sprout-out projections towards oxygen-starved areas, in a process analogous to mammalian angiogenesis. It was previously shown that this sprouting response involves the upregulation of the FGF homolog Branchless in hypoxic tissues, which binds its receptor Breathless on tracheal cells, thereby attracting the outgrowth of...

Rhythmic patterns of compression and reinflation of the thin-walled hollow tubes of the insect tracheal system have been observed in a number of insects. These movements may be important for facilitating the transport and exchange of respiratory gases, but observing and characterizing the dynamics of internal physiological systems within live insects can be challenging due to their size and exo...

The tracheal system of Drosophila melanogaster has proven to be an excellent model system for studying the development of branched tubular organs. Mechanisms regulating the patterning and initial maturation of the tracheal system have been largely worked out, yet important questions remain regarding how the mature tubes inflate with air at the end of embryogenesis, and how the tracheal system g...