OBJECTIVES/HYPOTHESIS To assess the risk of aspiration using a novel valve circuit that dynamically modulates endotracheal tube cuff pressure during the ventilatory cycle using bench and live animal models. STUDY DESIGN Animal model. METHODS The bench model consisted of a cuffed endotracheal tube inserted into an artificial trachea. Leakage of liquid around the cuff was measured after 4 hou...

We report a case of endotracheal tube fire occurring during CO2 laser surgery of the larynx. The ignition of an endotracheal tube was thought to be caused by laser penetration of an unprotected portion of the tube during resection of vocal cord tumour. Fire hazard is inevitable when a laser is used in the path of combustible gases and in the presence of flammable objects. We discuss the methods...

Wire-reinforced endotracheal tubes are used to prevent obstruction. Risk factors related to reinforced endotracheal tube obstruction were believed to be repeatedly used tube and in presence of N2O. In our case, even in free of these risk factors, a delayed tube obstruction occurred with the progress of surgical duration. This delay suggests that the obstruction was caused by diffusion of warm a...

Results The mean intubation time using IGI was shorter (p < 0.017) than that of IBRI and MCL in both endotracheal tubes (17.6 vs. 29.3 vs. 20.2 in conventional PVC tube; 14.6 vs. 27.4 vs. 19.9 in wire-reinforced silicone tube; sec). There were no significant (p > 0.05) differences between conventional PVC and wire-reinforced silicone tube for each intubation technique. The cumulative success ra...

Ensuring that the distal end of an endotracheal tube is properly located within the trachea, and that the tube is not obstructed by mucous deposition, is a major clinical concern. This concern is heightened in infant care, where the relatively small geometries predicate higher risks. A novel acoustic system was developed to allow for the continuous monitoring of endotracheal tube position and p...

Dose delivery of hydrofluoroalkane-beclomethasone and chlorofluorocarbon-beclomethasone was compared during in vitro neonatal simulations: mechanical ventilation with 40% and 100% relative humidity + Neonatal Chamber-Ventilator System/endotracheal tube; manual ventilation + Neonatal Chamber/endotracheal tube; "spontaneous breathing" + Neonatal Chamber/face mask without/with manual assistance. T...

Endotracheal suctioning is performed regularly in ventilated infants and children to remove obstructive secretions. The effect of suctioning on respiratory mechanics is not known. This study aimed to determine the immediate effect of endotracheal suctioning on dynamic lung compliance, tidal volume, and airway resistance in mechanically-ventilated paediatric patients by means of a prospective ob...

Tracheobronchial disruption is an uncommon but severe complication of double lumen endotracheal tube placement. The physical properties of a double lumen tube (large external diameter and length) make tracheobronchial injury more common than that associated with smaller single lumen endotracheal tubes. Here we present the case of an iatrogenic left main bronchus injury caused by placement of a ...

Methods The study was performed over patients intubated for at least 1 day in our ICU. Once the patient was extubated, tube was immediately stored in a plastic bag at room temperature and kept in a safe place until bench assessment. This was performed maximal 24 hours after extubation as follows. The endotracheal tube was attached to a filter (Hygrobac) and both were set to ASL 5000 active serv...

reinforced tubes are commonly used to minimize the opportunity of upper airway obstruction in patients at risk. there are a few reports of the airway obstruction resulted from kinked reinforced tubes. this report describes the obstruction of a reinforced tube in an adult patient who underwent tonsillectomy. under general anesthesia; an armoured endotracheal tube was inserted into the trachea un...