Deenanath Mangeshkar Hospital and Research Centre, Erandwane, Pune, 411004, India.
Eur Arch Otorhinolaryngol. 2021 Apr;278(4):1119-1127. doi: 10.1007/s00405-020-06433-6. Epub 2020 Oct 21.
To compare high-speed videolaryngoscopy (HSV) findings, like open quotient (OQ), vocal fold vibratory onset delay (VFVOD), amplitude symmetry index (ASI) and phase symmetry index (PSI), after 6 months of cordectomy with that after 1 year, and to compare later with the control group.
Retrospective analysis of HSV recordings of 33 patients of early glottic carcinoma after cordectomy was performed after 6 months and 1 year of cordectomy with the help of videokymogram and digital kymogram. The control group of ten individuals was selected from patients who came to hospital with complaints other than larynx. The comparison was done for different types of cordectomy separately.
The mean of OQ, VFVOD, ASI and PSI was found to be significantly higher after 6-month follow-up than after 1-year follow-up, the later was in turn found to be significantly higher than that of the control group, for type II and III cordectomy. The mean of OQ, VFVOD, ASI and PSI for other types of cordectomy also showed similar results, but the significance was not calculated due to less sample size.
There was significant improvement in OQ, VFVOD, PSI and ASI following CO LASER cordectomy after 1 year of follow-up, making it a good management option for early glottic carcinoma. The ability of the HSV to measure variations in the vocal cord vibration, following cordectomy, was well established by this study.
比较声带切除术 6 个月和 1 年后高速视频喉镜（HSV）检查结果，如张口率（OQ）、声带振动起始延迟（VFVOD）、振幅对称指数（ASI）和相位对称指数（PSI），并与对照组进行比较。
通过视频喉镜和数字声门图对 33 例早期声门癌声带切除术患者的 HSV 记录进行回顾性分析，分别在声带切除术 6 个月和 1 年后进行。选择 10 名因喉部以外的其他疾病就诊的患者作为对照组。分别对不同类型的声带切除术进行比较。
发现 II 型和 III 型声带切除术术后 6 个月的 OQ、VFVOD、ASI 和 PSI 平均值明显高于术后 1 年，后者又明显高于对照组。其他类型的声带切除术的 OQ、VFVOD、ASI 和 PSI 平均值也表现出类似的结果，但由于样本量较小，未进行统计学计算。
CO LASER 声带切除术 1 年后 OQ、VFVOD、PSI 和 ASI 有明显改善，是早期声门癌的良好治疗选择。本研究证实了 HSV 测量声带振动变化的能力。
