Correlation of airway ultrasonography and laryngoscopy findings in adults with subglottic stenosis: a pilot study

Aldriweesh, Bshair; Khan, Amir; Aljasser, Abdullah; Bukhari, Manal; Alrabiah, Abdulaziz; Alammar, Ahmed

doi:10.1007/s00405-021-07195-5

Cited by 1 publication

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“…Recent studies have examined the use of ultrasound-guided techniques, which allows visualization of vocal cords and larynx, to assess airway patency (8)(9)(10)(11). The laryngeal air column width, which refers to the width of the acoustic shadow at the level of the vocal cords, can be measured with ultrasonography (12).…”

Section: Introductionmentioning

confidence: 99%

Diagnostic efficacy of sonographic measurement of laryngeal air column width difference for predicting the risk of post-extubation stridor: A meta-analysis of observational studies

et al. 2023

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BackgroundThis meta-analysis aimed at assessing the diagnostic accuracy of ultrasound-measured laryngeal air column width difference (ACWD) in predicting post-extubation stridor (PES) in intubated adult patients.MethodsWe searched the Medline, Cochrane Library, EMBASE, and Google scholar databases from inception to October, 2022 to identify studies that examined the diagnostic accuracy of ACWD for PES. The primary outcome was the diagnostic performance by calculating the pooled sensitivity, specificity, and area under the curve (AUC). The secondary outcomes were the differences in ACWD and duration of intubation between patients with and without PES.ResultsFollowing literature search, 11 prospective studies (intensive care setting, n = 10; operating room setting, n = 1) involving 1,322 extubations were included. The incidence of PES among the studies was 4–25%. All studies were mixed-gender (females: 24.1–68.5%) with sample sizes ranging between 41 and 432. The cut-off values of ACWD for prediction of PES varied from 0.45 to 1.6 mm. The pooled sensitivity and specificity of ACWD for PES were 0.8 (95% CI = 0.69–0.88, I2: 37.26%, eight studies) and 0.81 (95% CI = 0.72–0.88, I2: 89.51%, eight studies), respectively. The pooled AUC was 0.87 (95% CI = 0.84–0.90). Patients with PES had a smaller ACWD compared to those without PES (mean difference = −0.54, 95% CI = −0.79 to −0.28, I2: 97%, eight studies). Moreover, patients with PES had a longer duration of tracheal intubation than that in those without (mean difference = 2.75 days, 95% CI = 0.92, 4.57, I2: 90%, seven studies).ConclusionUltrasound-measured laryngeal ACWD showed satisfactory sensitivity and specificity for predicting PES. Because of the limited number of studies available, further investigations are needed to support our findings.Systematic review registrationhttps://www.crd.york.ac.uk/prospero/, identifier CRD42022375772.

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