View clinical trials related to Nasotracheal Intubation.
Filter by:The aim of this study is to evaluate the appropriateness of the two kinds of nasotracheal tube (PORTEX POLAR [Smiths Medical International, Hythe, United Kingdom], Mallinckrodt TaperGuard [Covidien, Ireland]) depth in neutral, extended and flexed neck position when the upper border of the cuff of endotracheal tube is located 3cm below the vocal cords in neutral neck position.
Nasotracheal intubation (NTI) is commonly used in operations of the mouth, pharynx, larynx and also the neck .Various complications can occur such as epistaxis, bacteremia,turbinectomy, retropharyngeal dissection, and nasal alar pressure sores or necrosis.In clinical practice, nasal pressure sores caused by NTI are not uncommon, but have failed to attract clinical attention.The investigators have observed that the surgeon fixed the nasal tracheal tube and threaded tube directly to the patient's head. The investigators suspect that this method can reduce the pressure between the nasal tube and the nose.
Nasotracheal intubation(NTI) is commonly used in operations of the mouth, pharynx, larynx and also the neck. While these patients showed higher rates of difficult laryngoscopy. Therefore, duration of apnoea is prolonged and re-oxygenation is inevitable.Mask ventilation is the most fundamental technique in maintaining oxygenation, even when endotracheal intubation is failed. However, the most common complication of NTI is epistaxis, removing the nasotracheal tube could make mask ventilation extremely difficult.So the investigatorsbelieve the ideal approach is ventilation through original nasotracheal tube.Several techniques of supraglottic ventilations through endotracheal tubes have been reported.It remains uncertain whether supraglottic ventilation through inflated nasal RAE endotracheal tube has similar efficiency as mask ventilation after general anesthesia induction. Based on previous clinical experience, the investigators hypothesised that ventilations through inflated nasal RAE endotracheal tube and through facemask were comparable in terms of tidal volume and airway pressure in anesthetized, apnoeic adults. Forty patients were randomly assigned (sealed envelope method) to face mask（Group A，n=20）or nasal ventilation(Group B，n=20), For A: face mask ventilation followed by nasal ventilation and for B:nasal ventilation followed by face mask ventilation.Measure the tidal volume and air leakage of face mask and nasal ventilation during pressure-controlled ventilation mode and volume-controlled mode, respectively.