Ultrasound guided upper airway assessment in predicting difficult airway in the Neurosurgical population
试验速览
- 阶段
- 不适用
- 状态
- 尚未招募
- 发起方
- 入组人数
- 331
- 试验地点
- 1
- 主要终点
- ultrasound upper airway parameters are measured in the preoperative holding area after consent on patients undergoing elective neurosurgical procedures
研究概览
简要总结
In the preoperative holding area, the primary investigator that is the
anaesthesiology post graduate will examine the upper airway by transcutaneous
Ultrasound and predict difficulty in laryngoscopy and intubation based on the
following parameters
1.Tongue thickness at the level of hyoid bone, Anterior neck soft tissue thickness
at the level of the hyoid bone measured from the skin on the short axis.
- Tongue thickness at the level of thyrohyoid membrane
Anterior neck soft tissue thickness at the level of thyrohyoid membrane
- Transverse tracheal air shadow diameter in the subglottic area of the front of
the neck
- Soft tissue depth from the skin to the anterior part of the trachea, determined
at three levels: 1) vocal cords
-
thyroid isthmus
-
suprasternal notch
- The distance from the epiglottis to the midpoint of the distance between the
vocal folds (E-VC) .
-
The depth of the pre-epiglottic space.
-
Depth of skin to epiglottis
8.Submandibular ultrasound
Hyomental distance measured in neutral
Hyomental distance measured in hyperextended position of the neck And their
ratio .
9.Tongue volume
10.The shortest distance from the skin to the anterior commissure.
11.Tongue thickness, Thyromental distance and their ratio.
The secondary investigator that is the anaesthesiology consultant who will be
blinded to the ultrasound measurements and its interpretation will intubate the
patient under general anaesthesia and establish the Cormack- Lehane grading.
Preoperatively he would have access to non ultrasound predictors of difficult
airway.
Data from ultrasound parameters and Cormack- Lehane ( CL) grading will be
correlated to check for accuracy in identifying difficult airway by ultrasound
predictors of difficult airway.
研究设计
- 研究类型
- Observational
入排标准
- 年龄范围
- 18.00 Year(s) 至 60.00 Year(s)（—）
- 性别
- All
入选标准
- •ASA 1 and ASA 2 patients undergoing general anaesthesia undergoing elective neurosurgical population.
排除标准
- •Known c-spine injury/pathology History of cervical surgeries Airway pathology (oral/pharyngeal/laryngotracheal mass lesions) detected clinically or radiologically Congenital disorders impacting spine and causing difficult airway Parturients Uncooperative patients Unconscious patients Any external disease of the face and neck that would preclude the use of ultrasound probe placement.
结局指标
主要结局
ultrasound upper airway parameters are measured in the preoperative holding area after consent on patients undergoing elective neurosurgical procedures
时间窗: ultrasound upper airway parameters are measured in the preoperative holding area 30 minutes prior to shifting the patient inside the operation theatre after consent on patients undergoing elective neurosurgical procedures
次要结局
- comparison of ultrasound airway parameters with cormacke lehane grading of intubation(post intubation)
研究者
jyothsna jayatheerthan
kasturba medical college and kasturba hospital