Impact of Ultrasound Guidance on the Performance of Accurate Cricoid and Paralaryngeal Pressure
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 51
- 试验地点
- 2
- 主要终点
- The number of patients with eccentric oesophagus under general anesthesia, successfully occluded by using cricoid and paralaryngeal pressure.
研究概览
简要总结
The primary objective is to study impact of upper airway ultrasonography in guiding anaesthetic assistant into providing accurate cricoid pressure, or both cricoid and paralaryngeal pressure in those with oesophagus deviation, achieving sonographic proven oesophageal occlusion compared to those without ultrasound guidance.
详细描述
All patients consented for the study were having their airway examined via US. Cross sectional sonography of the airway was performed to determine the anatomic relationship of the oesophagus relative to the trachea:
- before induction of anaesthesia
- after GA before external airway pressure manoeuvre
- after GA with external airway pressure manoeuvre.
US guided CP was applied on subjects with central oesophagus; CP and PLP were applied on subject with eccentric oesophagus anatomy.
PLP was performed by lateral compression on the eccentric oesophagus by fingertips under US guidance. To standardised the application of CP and PLP, only 2 well trained investigators were allowed to performed the CP and PLP, US scan on airway and patient recruitment. The conduct of trial involved 2 investigators where first investigator provide US scan, and second investigator provide compression of CP or PLP using fingertips guided by the instruction of first investigator.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- Double (Participant, Care Provider)
盲法说明
Participant will not be informed of their anatomical details. Care provider will not be informed of their accuracy of performance of the airway manoeuvre.
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Elective list Under general anaesthesia Not intubated prior to OT
排除标准
- •Below 18 years old Pregnant Neck deformities Previous maxillofacial surgery
结局指标
主要结局
The number of patients with eccentric oesophagus under general anesthesia, successfully occluded by using cricoid and paralaryngeal pressure.
时间窗: ultrasound assessment of oesophagus done after general anaesthesia, during application of cricoid pressure, and during application of cricoid and paralaryngeal pressure
we are studying the effectiveness of cricoid pressure versus cricoid and paralaryngeal pressure(novel technique) in those patients with eccentric oesophagus under general anaesthesia. We use ultrasound to determined the position of the oesophagus after patient under general anaethesia ( to group them under central oesophagus and eccentric oesophagus) and also to determine the success of oesophagus occlusion.
次要结局
- The number of patients with central oesophagus under general anesthesia, successfully occluded by using cricoid pressure.(ultrasound assessment of oesophagus done after general anaesthesia and during application of cricoid pressure)
研究者
Dr Lim Siu Min
Dr,
University of Malaya