Department of Thoracic and Thyroid Surgery, Faculty of Medicine, Kyorin University, Tokyo, Japan.
Department of Otolaryngology - Head and Neck Surgery, Kyorin University, Tokyo, Japan.
Head Neck. 2024 Jun;46(6):1280-1293. doi: 10.1002/hed.27756. Epub 2024 Apr 1.
Although flexible laryngoscopy (FL) is the reference modality for diagnosing vocal cord paralysis (VCP), FL involves patient discomfort and insertion intolerance. Dynamic digital radiography (DDR) with high spatial and temporal resolution is easier to use and less invasive when evaluating VCP.
Seventy-eight patients underwent FL and DDR before and after neck surgery. Qualitative and quantitative vocal cord movement (VCM) evaluations were conducted. Patients with postoperative VCP were followed-up regularly.
DDR exhibited diagnostic performance with 67% sensitivity and 100% specificity. The cutoff for VCM was 2.4 mm, with DDR exhibiting 100% sensitivity and 78% specificity. All cords with transient VCP had positive VCM at both 3 weeks and 2 months. Additionally, 50% and 75% of cords with permanent VCP had negative VCM at 3 weeks and 2 months, respectively.
DDR is promising for the diagnosis of postoperative VCP and early prediction of permanent postoperative VCP.
尽管纤维喉镜（FL）是诊断声带麻痹（VCP）的参考方式，但 FL 涉及患者不适和插入不耐受。动态数字射线照相术（DDR）具有较高的空间和时间分辨率，在评估 VCP 时更易于使用且侵入性更小。
78 例患者在颈部手术后进行了 FL 和 DDR。进行了定性和定量声带运动（VCM）评估。对术后 VCP 患者进行定期随访。
DDR 显示出 67%的灵敏度和 100%的特异性的诊断性能。VCM 的截止值为 2.4mm，DDR 的灵敏度为 100%，特异性为 78%。所有暂时性 VCP 的声带均在 3 周和 2 个月时表现出阳性 VCM。此外，50%和 75%的永久性 VCP 声带在 3 周和 2 个月时分别表现出阴性 VCM。
DDR 有望用于诊断术后 VCP 和早期预测永久性术后 VCP。
