Diagnostic Performance of Ultrasonographic Airway Measurements for Predicting Difficult Intubation in Adult Female Patients: A Prospective Observational Study
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 400
- 试验地点
- 1
- 主要终点
- Incidence of Difficult Intubation
研究概览
简要总结
This prospective observational study aims to evaluate the ability of selected ultrasonographic airway measurements to predict difficult intubation in adult female patients undergoing elective surgery. Pre-induction airway ultrasonography will be performed to measure tongue thickness and anterior neck soft tissue-related parameters. These measurements will be compared with laryngoscopic findings during direct laryngoscopy. The results of this study may help identify practical and reliable ultrasound-based markers for preoperative airway assessment and improve patient safety.
详细描述
This is a prospective, single-center observational study conducted in adult female patients scheduled for elective surgery under general anesthesia. The study was performed at the University of Health Sciences Adana City Training and Research Hospital after approval by the institutional ethics committee.
Before induction of anesthesia, standardized ultrasonographic airway assessments were performed by an experienced anesthesiologist. Measurements included tongue thickness, the distance from the skin to the anterior commissure of the vocal cords, the distance from the skin to the hyoid bone, and the distance from the skin to the epiglottis. All measurements were obtained under static pre-induction conditions using portable ultrasound equipment.
Following anesthesia induction, direct laryngoscopy was performed, and laryngoscopic view was graded according to the Cormack-Lehane classification. Difficult intubation was defined based on predefined laryngoscopic criteria. Ultrasonographic measurements were then analyzed for their diagnostic performance in predicting difficult intubation.
The primary objective of the study was to determine the most informative ultrasonographic parameter for predicting difficult intubation in this population. Secondary objectives included comparing the relative diagnostic value of different ultrasound measurements and evaluating their potential role in routine preoperative airway assessment.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 65 Years（Adult, Older Adult）
- 性别
- Female
- 接受健康志愿者
- 否
入选标准
- •Female patients aged 18-65 years
- •American Society of Anesthesiologists (ASA) physical status I-III physical status I-III
- •Scheduled for elective surgery under general anesthesia requiring tracheal intubation
- •Ability to provide informed consent
排除标准
- •Body mass index ≥30 kg/m²
- •Known history of difficult intubation
- •Anatomical airway abnormalities or head and neck pathology
- •Pregnancy
- •Emergency surgery
研究组 & 干预措施
Airway Ultrasound Assessment Cohort
Adult female patients undergoing elective surgery in whom preoperative airway ultrasonography was performed for observational assessment of airway anatomy. No intervention was assigned as part of the study.
结局指标
主要结局
Incidence of Difficult Intubation
时间窗: Perioperative
Difficult intubation defined as Cormack-Lehane grade III or IV and/or the need for additional airway devices or techniques during tracheal intubation.
次要结局
- Ultrasonographic Measurement of Tongue Thickness(Preoperative assessment)
- Ultrasonographic Measurement of Skin-to-Hyoid Bone Distance(Preoperative assessment)
- Ultrasonographic Measurement of Skin-to-Epiglottis Distance(Preoperative assessment)
- Ultrasonographic Measurement of Distance from Skin to Anterior Commissure of the Vocal Cords(Preoperative assessment)
研究者
Uğur serkan Çitilcioğlu
Anesthesiologist
Adana City Training and Research Hospital