A Comparative Study of Ultrasound Versus CT Measurement of Tongue and Oral Cavity Size: Validation of Sonographic Technique
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 24
- 试验地点
- 1
- 主要终点
- Validity of ultrasound measurement of the two airway parameters (tongue thickness and height of oral cavity) against CT measurements of the same parameters.
研究概览
简要总结
Difficulty in managing the airway is the single most important cause of major anesthesia-related morbidity and mortality. The currently used clinical method of predicting airway difficulty used by anesthetists is limited and not very highly sensitive or specific. Any additional bedside method that increases its specificity and sensitivity would be valuable. This project is designed to study and measure the tongue thickness and oral cavity height by using an ultrasound scan and comparing them with the same measurements obtained by CT scan. These will also be compared to a more complicated measurements used in previous studies to investigate any correlation with the currently used clinical methods. This information will help us decide if ultrasound may help Anesthesiologists assess difficulties in airway management in a more accurate, precise and reliable simpler method.
研究设计
- 研究类型
- Observational
- 观察模型
- Other
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 80 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Age between 18 to 80 Years
- •Gender: Both males and females are eligible for the study
- •ASA I-III
- •Scheduled for CT-scan of the head and neck as part of medical investigation (for test validation part)
排除标准
- •Volunteer/ patient refusal
- •Language Barrier
- •Known oropharyngeal, laryngeal or head and neck disease or cancers
- •Multiple amalgam fillings of the teeth
- •Past history of oral or head and neck surgical procedures
- •Past history of burns or radiotherapy of the head and neck region
- •Presence of any scars, sinuses, infection, swelling, cysts in the head and neck region
结局指标
主要结局
Validity of ultrasound measurement of the two airway parameters (tongue thickness and height of oral cavity) against CT measurements of the same parameters.
时间窗: 2012-2013
Validity of the assumption that ratio of "tongue thickness/oral cavity height" is a good estimate of the ratio "tongue volume/oral cavity volume" as measured by CT scan.
时间窗: 2012-2013
次要结局
- Reproducibility of the ultrasound measurements(2012-2013)
- Correlating ultrasound measured values with Mallampati scores(2012-2013)