Ultrasound Guided Cricoid and Paralaryngeal Pressure
- Conditions
- Ultrasonography, Interventional
- Interventions
- Other: paralaryngeal pressureOther: cricoid pressure
- Registration Number
- NCT04317976
- Lead Sponsor
- University of Malaya
- Brief Summary
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.
- Detailed Description
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:
1. before induction of anaesthesia
2. after GA before external airway pressure manoeuvre
3. 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.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 51
Elective list Under general anaesthesia Not intubated prior to OT
Below 18 years old Pregnant Neck deformities Previous maxillofacial surgery
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- SINGLE_GROUP
- Arm && Interventions
Group Intervention Description Eccentric located oesophagus post GA paralaryngeal pressure Oesophagus eccentric located after general anaesthesia, paralaryngeal pressure and cricoid pressure applied by fingertips under ultrasound guidance Centrally located oesophagus post GA cricoid pressure Oesophagus remained central after general anaesthesia, cricoid pressure applied by fingertips under ultrasound guidance
- Primary Outcome Measures
Name Time Method The number of patients with eccentric oesophagus under general anesthesia, successfully occluded by using cricoid and paralaryngeal pressure. 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.
- Secondary Outcome Measures
Name Time Method 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 The objective is to study the effectiveness of cricoid pressure in those patients with central oesophagus under general anaesthesia. We use ultrasound to determined the position of the oesophagus after patient under general anaethesia, and also to determine the success of oesophagus occlusion.
Trial Locations
- Locations (1)
University Malaya Medical Centre
🇲🇾Kuala Lumpur, Malaysia