Ultrasound-Guided Airway Evaluation: Is It a Game Changer for Predicting Difficult Endotracheal Intubation?

被引:0
作者
Vidhya, Sri [1 ]
Swain, Bhanu P. [1 ,2 ]
Dash, Anbesh [1 ,3 ]
Swain, Amlan [1 ,2 ]
Sahu, Seelora [1 ,2 ]
机构
[1] Tata Main Hosp, Anaesthesiol, Jamshedpur, India
[2] Manipal Acad Higher Educ, Manipal TATA Med Coll, Anaesthesiol, Manipal, India
[3] Vikash Multispecial Hosp, Anaesthesiol, Bargarh, Odisha, India
关键词
difficult airway; endotracheal; intubation; laryngoscopy; ultrasound; preoperative assessment; airway; OF-CARE ULTRASOUND; ULTRASONOGRAPHY; QUANTIFICATION; LARYNGOSCOPY; CORMACK;
D O I
10.7759/cureus.52557
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Introduction: Airway ultrasound has recently promised to be a valuable addition to preoperative airway assessment tools. This study was undertaken to determine the efficacy of ultrasound -guided measurement of soft tissue thickness (STT) at various levels of the anterior neck in predicting difficult airways in an eastern Indian population. Objective: The primary objective was to find out the sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of anterior neck soft tissue thickness at the level of the hyoid (STTHyoid) and vocal cords (STT-VC), distance from the skin to the epiglottis midway (DSEM), and the ratio of the depth of the pre-epiglottic space (Pre -E) to the distance from the epiglottis to the mid -point of the vocal cords (E -VC). The secondary objective was to develop a scoring system using these parameters. Materials and methods: One hundred eighty-eight patients aged 18-65 years who received general anesthesia and endotracheal intubation for surgery were included in the study. Anterior neck soft tissue thickness measurements were done preoperatively using ultrasound. The actual difficulty of the airway was graded by the anesthesiologist while performing endotracheal intubation using the intubation difficulty scale (IDS). Results: The incidence of a difficult airway (IDS > 5) was 9.04%. The STT-Hyoid and STT-VC had a moderate correlation with IDS. The DSEM and Pre-E/E-VC ratios had a weak correlation with IDS. For difficult airway prediction, the cutoff points of STT-Hyoid and STT-VC were 7.95 mm and 24.25 mm, respectively. The combined cutoff measurements of STT-Hyoid and STT-VC (29.95 mm) were better predictors of difficult airway. Conclusion: Preoperative airway ultrasound examination measuring the soft tissue thickness at the hyoid and vocal cord levels is an effective modality in predicting a difficult airway. However, further studies are needed to validate this finding in populations of varied ethnicity and demographic distribution.
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页数:11
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