View clinical trials related to Laryngeal Masks.
Filter by:Tracheostomy is a vital procedure in the ICU to maintain the airway and prevent complications that may occur due to intubation. It helps reduce the dead space volume, airway resistance and provides comfort to the patients during the weaning from mechanical ventilation. Two methods are widely used in Percutaneous Dilatational Tracheostomy (PDT): The multiple dilation method (Ciaglia) and the Griggs method.Griggs method will be used in the study. The Griggs Method: A 10-15 millimeter skin incision is made between the level of the second-third tracheal rings. The location of the needle is confirmed by entering the trachea with an injector filled with 2-3 mL saline from the midline and aspirating air. A J-tipped guidewire is advanced through the needle and the needle is removed. A special forceps with a channel at the tip, through which the guidewire can pass is used in this method. The forceps advanced through the guidewire and then subcutaneous tissues and trachea are dilated in one or two steps. When the stoma is large enough to insert the cannula, it is placed in the trachea and fixed. Patients who will undergo tracheostomy in the ICU will be included in the study and randomly assigned into two groups. Two different methods, endotracheal tube (ET) or laryngeal mask (LMA), will be used during the tracheostomy for airway management. In both methods, fiberoptic bronchoscopy will assist the procedure. Researchers aim to compare the two airway management methods in terms of complications, procedure time, and the number of staff needed.
To study the advantages of visual laryngeal mask combined with endotracheal intubation in general anesthesia surgery, we compared intubation time, intubation times and intubation success rate of endotracheal intubation through laryngeal mask airway under visual and non-visual conditions, at the same time, the laryngeal mask displacement rate, volume of secretion in airway, the incidence of laryngeal spasm, the incidence and severity of postoperative oropharyngeal pain were also compared between two groups.
The supraglottic airway device (SAD) is currently widely used in patients undergoing general anaesthesia as a method of securing the airway. The usage of SAD does not require the patient to be paralysed prior to insertion, as opposed to an endotracheal tube. Five tests have been recommend to ensure that the SAD can be used for advanced procedure after a blind insertion. These tests however are not confirmed with visual validation and hence the confirmation of optimal position can be misleading. This study is conducted to validate by video laryngoscopy the five recommended tests for confirming the placement and efficacy of a SAD, thus enabling its safe application in institutions with limited availability of video laryngoscopes. Subjects for this study will consist of patients scheduled for procedures under general anaesthesia in the University of Malaya Medical Centre (UMMC) who are amenable to supraglottic airway management.
It is known that patients with head and neck cancer who have had radiation therapy to the structures of the neck are at a greater risk of difficult mask ventilation and tracheal intubation than the majority of patients undergoing general anaesthesia. Failure to maintain oxygenation can lead to catastrophic consequences for any patient undergoing general anaesthesia, such as severe hypoxic brain injury and death. As such, the current guidelines from the Difficult Airway Society promote the use of a second generation laryngeal mask airway to maintain oxygenation in the event of failed mask ventilation or tracheal intubation, a rescue technique that has in most patient groups a very high chance of success. Unfortunately these guidelines are by necessity generic guidance and do not take into account the clinical performance of these devices in specific patient groups. While there is evidence of the effectiveness of the IGEL device as the primary method of airway maintenance in many studies there are none that describe its clinical performance in a group of patients in whom the rate of failed mask ventilation and tracheal intubation are significantly higher than the general population of patients. It is therefore of great interest to have an idea of the likelihood of success of rescue ventilation with this device in a group of high risk patients.