OBJECTIVES/HYPOTHESIS In this study, a bioengineered trachea composed of autologous chondrocytes was developed, and its effect on cartilaginous regeneration was evaluated by implantation into tracheal defects in rabbits. STUDY DESIGN Prospective controlled trial in an animal model. METHODS The tracheal prosthesis used in this study was composed of polypropylene (the frame) and collagen spon...

The volume of a tracheal system influences breath-holding capacity and provides an index of an insect's investment in its respiratory system. Here, we describe a new, generally applicable method to measure tracheal volume that enables repeatable determinations on live animals. Animals are isolated in a closed chamber of a known volume and equilibrated with a helium:oxygen gas mixture. The chamb...

Most intensive care patients require frequent tracheal toilet, a procedure usually performed by suctioning the tracheal tube. Such procedures often result in the production and dissemination of droplets. We measured the distance visible droplets disseminated during tracheal tube suctioning of patients in an adult surgical intensive care unit. Fifty consecutive suction procedures in 14 patients ...

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 ...