OCUS). The aim of this study was to prospectively compare lung ultrasound with clinical auscultation to confirm OLV before thoracic surgery in pediatric patients. METHODS: This prospectively blinded feasibility study included 40 patients ranging in age from 0 to 20 years. After confirmation of lung separation by the primary anesthesia team using FOB, the sonographer and the auscultator, both blinded to the laterality of surgery and lung separation, entered the operating room. The sonographer evaluated for pleural lung sliding and the auscultator listened for breath sounds. Successful lung separation was definitively confirmed by direct visualization of lung collapse during the operation. RESULTS: In confirming effective single-lung ventilation, lung ultrasound had a diagnostic accuracy of 95% (95% confidence interval [CI], 82.7%–98.5%). In contrast, auscultation could only reliably confirm lung isolation with 68% accuracy (95% CI, 51.5%–80.4%). The McNemar test showed a statistically significant difference between the use of lung ultrasound and auscultation (P < .001). The median time to perform ultrasonography was 67 seconds (interquartile range [IQR], 46–142) and the median time to perform auscultation was 21 seconds (IQR, 10–32). CONCLUSIONS: Based on the initial results of our feasibility trial, lung ultrasound proved to be a fast and reliable method to verify single-lung ventilation in pediatric patients presenting for thoracic surgery with a high degree of diagnostic accuracy....

中文翻译：

---

床旁肺部超声评估儿童单肺通气期间的肺隔离：一项盲法观察可行性研究


OCUS 的 Package。本研究的目的是前瞻性地比较肺部超声与临床听诊，以确认儿科患者胸外科前的 OLV。方法： 这项前瞻性盲法可行性研究包括 40 例年龄在 0 至 20 岁之间的患者。在初级麻醉团队使用 FOB 确认肺分离后，超声医师和听诊员都对手术和肺分离的偏侧性不知情，进入手术室。超声医师评估胸膜肺滑动，听诊员听呼吸音。手术过程中肺塌陷的直接可视化明确证实了成功的肺分离。结果： 在确认有效的单肺通气时，肺部超声的诊断准确率为 95% （95% 置信区间 [CI]，82.7%–98.5%）。相比之下，听诊只能以 68% 的准确率可靠地确认肺隔离 （95% CI，51.5%–80.4%）。McNemar 试验显示肺部超声和听诊的使用之间存在统计学意义差异 （P < .001）。进行超声检查的中位时间为 67 秒 （四分位距 [IQR]，46-142），进行听诊的中位时间为 21 秒 （IQR，10-32）。结论： 根据我们可行性试验的初步结果，肺部超声被证明是一种快速可靠的方法，可以验证接受胸外科手术的儿科患者的单肺通气，具有高度的诊断准确性。