ObjectiveTo explore the feasibility of ultrasound measurement of the transverse diameter of the cervical trachea at its narrowest point in patients undergoing severe scoliosis orthopedic surgery.MethodsA total of 110 patients, aged 18-65, who scheduled for elective orthopedic surgery for severe scoliosis were included. Prior to surgery, all patients underwent two types of tracheal inner diameter measurements: (1) CT measurement of the anteroposterior diameter (Dmin,AP) and transverse diameter (Dmin,T) of the cervical trachea at its narrowest point; and (2) ultrasound measurement of Dmin,T. Based on the measurement results, the patients were randomly divided into two groups, the CT group ( n = 55) and the ultrasound group ( n = 55). We compared the Dmin,AP and Dmin,T measured by CT for all patients. Then, we compared CT and ultrasound measurements of Dmin,T. Furthermore, we conducted an analysis to determine the correlation and consistency between the two methods. Additionally, we examined the success rate of first-attempt tracheal intubation and the occurrence rate of tracheal tube being too wide or too narrow between the two groups, and assessed the occurrence of postoperative 24-h pharyngeal pain and hoarseness.ResultsWhen comparing the Dmin,AP and Dmin,T measured by CT in all patients, a statistically significant difference was observed ( p < .001). When comparing the measurements of Dmin,T between CT and ultrasound in all patients, no statistically significant differences were found ( p > .05). The correlation coefficient (r) between CT and ultrasound measurements of Dmin,T was 0.849 ( p < .001). The mean difference in Dmin,T was 0.19 mm, and the limits of agreement (LoA) were −2.24 mm to 2.62 mm.ConclusionsUltrasound measurement of Dmin,T in severe scoliosis patients is feasible and provides valuable guidance for the selection of endotracheal tube sizes. It serves as a non-invasive and bedside auxiliary examination method for perioperative airway assessment.

中文翻译：

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超声测量接受严重脊柱侧弯矫形手术的患者气管直径的可行性：一项随机试验

目的探讨超声测量重度脊柱侧凸矫形手术患者颈部气管最窄处横径的可行性。方法选取110例择期行重度脊柱侧凸矫形手术的患者110例，年龄18~65岁。术前，所有患者均接受两种气管内径测量：（1）CT测量气管前后径（D）分钟，AP）和横向直径（D薄荷) 颈部气管最窄处； (2) 超声测量 D薄荷。根据测量结果，患者被随机分为两组，即CT组（n = 55）和超声组（n = 55）。我们比较了D分钟，AP和D薄荷所有患者均通过 CT 测量。然后，我们比较了 D 的 CT 和超声测量结果薄荷。此外，我们还进行了分析以确定两种方法之间的相关性和一致性。此外，我们还考察了两组患者首次气管插管的成功率以及气管导管过宽或过窄的发生率，并评估术后24小时咽痛和声音嘶哑的发生情况。分钟，AP和D薄荷通过 CT 对所有患者进行测量，观察到统计学显着差异 (p < .001)。比较 D 的测量值时薄荷所有患者的 CT 和超声检查之间未发现统计学显着差异 ( p > .05)。 CT 和超声测量 D 之间的相关系数 (r)薄荷为 0.849 (p < .001)。 D 的平均差薄荷为 0.19 mm，一致性限 (LoA) 为 -2.24 mm 至 2.62 mm。结论 D 的超声测量薄荷在严重脊柱侧弯患者中是可行的，并为气管插管尺寸的选择提供了有价值的指导。作为围术期气道评估的一种无创、床旁辅助检查方法。