Validity Of Ultrasound As Regards Correlation To Cormack-Lehane Grading In Obese Patients: A Cross Sectional Observational Study
试验速览
- 阶段
- 不适用
- 入组人数
- 78
- 试验地点
- 1
- 主要终点
- The ratio of the depth of the pre-epiglottic space (Pre-E) to the distance from the epiglottis to the mid-point of the distance between the vocal cords (E-VC).
研究概览
简要总结
Since the introduction of real-time ultrasound (US) capabilities, ultrasound technology has been adopted and incorporated into daily practice by many medical and surgical specialties. Using US to help assess the difficult airway constitutes just yet another valuable application of this versatile technology . Since many anesthesia providers had already acquired proficiency in US techniques in US guided vascular access and regional nerve blocks, using US to evaluate the airway could be learned and mastered without too much difficulty. Ultrasound of the upper airway may prove to become a useful adjunct to conventional clinical assessment tools, as it has been successful in visualizing the relevant anatomy and critical structures of the airway..
详细描述
The study is cross sectional observational study in which obese patients will be assessed using conventional clinical methods of airway assessment and by using US for the same patient before induction of anesthesia then correlated to the Cormack-Lehane finding after induction of anesthesia..
研究设计
- 研究类型
- Observational
- 观察模型
- Other
- 时间视角
- Cross Sectional
入排标准
- 年龄范围
- 21 Years 至 60 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Age of the patient : (21-60) years old.
- •Sex : male & female.
- •Physical Status : The American Society of Anesthesiologists (ASA) II-III patients.
- •Body mass index : 30 to more than 30 kg / m² .
- •Operations: Laparoscopic surgeries,bariatric surgeries and any operation that requires general anesthesia with endotracheal tube placement .
排除标准
- •Patient refusal.
- •Deformity of the airway anatomy [by masses or tumors].
- •Patients with thyroid swellings 'Goitre'.
- •Pathology of the airway [edema,burn and arthritis].
结局指标
主要结局
The ratio of the depth of the pre-epiglottic space (Pre-E) to the distance from the epiglottis to the mid-point of the distance between the vocal cords (E-VC).
时间窗: through study completion, an average of 1 year
If It is \[0-1\] ,this suspects Cormack-Lehane Grade 1.If it is \[1-2\],this suspects Cormack-Lehane Grade 2.If it is \[2-3\],this suspects Cormack-Lehane Grade 3
The anterior neck soft tissue thickness at the level of the vocal cords (ANS-VC)
时间窗: through study completion, an average of 1 year
ANS-VC \>0.23 cm had a sensitivity of 85.7% in predicting a Cormack-Lehan Grade 3 or 4
次要结局
- Modified Mallampati classification(through study completion, an average of 1 year)
- Interincisor gap(through study completion, an average of 1 year)
- Thyromental distance(through study completion, an average of 1 year)
- The anterior neck soft tissue thickness at the level of the hyoid bone (ANS-Hyoid)(through study completion, an average of 1 year)
- Tongue volume will be derived from multiplication of the midsagittal cross-sectional area of the tongue by its width obtained from transverse sonograms(through study completion, an average of 1 year)
- The hyomental distance of the patient in neutral position of the neck and in fully extended neck calculating the ratio between both of them(through study completion, an average of 1 year)
- Sternomental distance(through study completion, an average of 1 year)
- Neck Extension and Flexion(through study completion, an average of 1 year)
研究者
Ahmed Abdelrahman Mohamed El-Tawansy
Principal Investigator
Zagazig University