To assess the contribution of nasal passage during face mask ventilation at two different airway pressures
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 40
- 试验地点
- 1
- 主要终点
- Difference in tidal volume with and without nasal occlusion at two different airway pressures
研究概览
简要总结
Manual face mask ventilation is an important component of airway management during general anaesthesia. Diffficult face mask ventilation is commonly encountered due to upper airway obstruction. many studies showed the importance of nasal pathway during face mask ventilation. However, there is paucity of studies regarding quantitative assessment with respect to tidal volume contribution via oral and nasal passages. The assessment of nasal passage contribution may help in judicious use of nasal mask and nasal airways to releive upper airway obstruction during mask ventilation.
研究设计
- 研究类型
- Observational
入排标准
- 年龄范围
- 18.00 Year(s) 至 55.00 Year(s)（—）
- 性别
- Male
入选标准
- •male patients aged 18-55 years.
- •patient planned for elective surgeries under general anaesthesia.
- •physical status ASA grade I to III.
排除标准
- •obese patients (BMI>30 kg/m2) patients with short neck thyromental distance < 6.5 cm modified mallampatti class > II Interincisor distance < 3cm patients with protruding/missing incisors, edentulous patients history of snoring bearded patients patients with evident nasal obstruction non fasted, emergency case patients with history of gastroesophageal reflux disorder.
结局指标
主要结局
Difference in tidal volume with and without nasal occlusion at two different airway pressures
时间窗: 1 min readings of expired tidal volume will be taken with and without nasal occlusion at 10 and 15 cm of water, with 1 min of washout between each reading
次要结局
未报告次要终点