Airway Ultrasound Versus Mallampati Score as a Predictor of Difficult Direct Laryngoscopy in Obese Patients an Observational Study
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 入组人数
- 60
- 试验地点
- 1
- 主要终点
- Comparison between the Mallampati score and the airway ultrasound
研究概览
简要总结
The purpose of this study is to evaluate the ability of pre-operative ultrasound assessment of neck anatomy in predicting difficult laryngoscopy in obese patients undergoing elective surgery requiring tracheal intubation and comparing it to conventional methods as the Mallampati score in anticipating difficult laryngoscopy.
详细描述
All patients enrolled in the study will be consented by written and informed consent to do the airway ultrasound before induction.
During pre-anesthetic evaluation of the patients, demographic variables will be collected from each patient and clinical screening tests to predict difficult airway will be performed in the form of Mallampati score sitting in neutral position.
The patient will be admitted to the pre-anesthesia care unit, attended by anesthesiologist experienced in ultrasound.
The ultrasound will be done with the patients seated, head held in neutral position, using the linear probe 13-6i of SonoSite model M-Turbo c with 13-6Mega Hertz frequency, Preoperative ultrasonographic airway assessment will be performed for all patients in the study, Patients will be explained about the procedure before starting the study.
Operator will position himself on the right side of the patient, holding the ultrasound transducer in the right hand, the transducer will be placed transversely just above the suprasternal notch to visualize the tracheal cartilage, a horseshoe shaped hypoechoic structure, if tracheal deviation is present, the transducer might need to be moved laterally to locate the trachea and its position should be marked out with a pen, the transducer will be moved cephalad to inspect the remaining structures.
研究设计
- 研究类型
- Observational
- 观察模型
- Other
- 时间视角
- Other
入排标准
- 年龄范围
- 18 Years 至 60 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Age from18 to 60 years old
- •With an American Society of Anesthesiologists physical status classification score of I to III,
- •Scheduled for elective surgical procedure requiring endotracheal intubation
- •Body mass index more than 30 kg/m2.
排除标准
- •Patient refusal
- •Emergency surgery
- •Patients with history of airway or neck surgery
- •Neck mobility abnormalities
- •Syndromatic patients
- •Pre-existing airway malformations or pathology like facial or cervical fractures, maxillofacial abnormalities, cervical tumors or goiter.
- •History of difficult intubation.
- •Patients with tracheostomy tubes.
- •Pregnant patients.
- •Body mass index less than 30 kg/m
- •ASA IV or above patients.
结局指标
主要结局
Comparison between the Mallampati score and the airway ultrasound
时间窗: 6 months
Comparison between the Mallampati score and the airway ultrasound measurements in the prediction of difficult intubation in obese patients
次要结局
- comparison between each airway ultrasound measurement(6 months)
研究者
Sherif Hany Adly Loka
assistant lecturer
Ain Shams University