The Influence of Head and Neck Position on the Cuff Pressure Using Nasotracheal Tube
试验速览
- 阶段
- 不适用
- 入组人数
- 50
- 试验地点
- 1
- 主要终点
- cuff pressure of the nasotracheal tube
研究概览
简要总结
Nasotracheal tube is a commonly used for securing airways when performing general anesthesia in various oral and maxillofacial surgery such as tooth extraction, maxillary and mandibular fractures. After the nasotracheal tube is placed in the patient's trachea, the process of inflating the cuff at the end of the tube with air is required. If the cuff is inflated with excess air, the cuff may press the mucous membrane on the inner wall of the trachea, causing ischemia. Previous studies have shown that if the pressure in the cuff exceeds 30 cmH2O, it is highly likely to cause ischemia. In addition, it was found that the pressure in the excessively inflated cuff was associated with post-operative sore throat, vocal cord paralysis, and nerve damage. Moreover, the pressure in the cuff may vary according to the patient's head and neck posture. The pressure changes in the cuff may vary depending on the material and shape of the cuff. Therefore, we will investigate to evaluate the effect of head and neck posture on the pressure in the cuff of nasotracheal tube.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Crossover
- 主要目的
- Diagnostic
- 盲法
- Double (Participant, Care Provider)
入排标准
- 年龄范围
- 19 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Adult patients over 20 years of age
- •patients who require intubation of the nasotracheal tube to undergo oral and maxillofacial surgery under general anesthesia
排除标准
- •Patients whose neck cannot be rotated due to cervical diseases, cervical fractures, and previous cervical surgery
- •Patients undergoing emergency surgery
- •Pregnant women
研究组 & 干预措施
Neutral position
General anesthesia will be induced and nasotracheal tube will be placed through the patient's nose. After 30 seconds, the cuff pressure will be measured using a cuff manometer. Inspiratory tidal volume, expiratory tidal volume, peak inspiratory pressure, and end-tidal carbon dioxide waveform will be recorded three times according to breathing. Whether ventilation is not adequate and air is leaking will be recorded.
干预措施: Neutral position (Procedure)
Head extension position
After changing the posture of the head and neck into head extension, cuff pressure will be recorded.
干预措施: Head extension position (Procedure)
Head flexion position
After changing the posture of the head and neck into head flexion, cuff pressure will be recorded.
干预措施: Head flexion position (Procedure)
Head rotation position
After changing the posture of the head and neck into head rotation, cuff pressure will be recorded.
干预措施: Head rotation position (Procedure)
结局指标
主要结局
cuff pressure of the nasotracheal tube
时间窗: for 10 minutes after intubating the nasotracheal tube. At Day 0.
Cuff pressure will be measured in the various head and neck positions.
次要结局
未报告次要终点