Hakkesteegt Marieke M, Brocaar Michael P, Wieringa Marjan H, Feenstra Louw
Department of Otorhinolaryngology, Erasmus MC - University Medical Center Rotterdam, The Netherlands.
J Voice. 2008 Mar;22(2):138-45. doi: 10.1016/j.jvoice.2006.09.010. Epub 2007 Jun 14.
The purpose of this study was to investigate the usefulness of the Dysphonia Severity Index (DSI) as an objective multiparametric measurement in assessing dysphonia. The DSI was compared with the score on Grade of the GRBAS scale. Investigated was also whether the DSI is related to severity of dysphonia, which was represented by different diagnosis groups. Furthermore, it was investigated whether the DSI can differentiate between a group of patients and a control group. A total of 294 patients with different voice pathologies were included. A control group consisted of 118 volunteers without any voice complaints. The voices of all participants were perceptually evaluated on Grade, and the DSI was measured. The groups of patients with voice complaints have a lower DSI and higher scores on Grade than the control group. The DSI was significantly lower when the score on Grade was higher. The DSI discriminates between patients with nonorganic voice disorders, vocal fold mass lesions, and vocal fold paresis/paralysis. To determine whether the DSI discriminates between patients and controls, the sensitivity and specificity for different DSI cutoff points were calculated. With a DSI cutoff of 3.0, maximum sensitivity (0.72) and specificity (0.75) were found. We conclude that the DSI is a useful instrument to objectively measure the severity of dysphonia.
本研究的目的是调查嗓音障碍严重程度指数（DSI）作为评估嗓音障碍的客观多参数测量方法的实用性。将DSI与GRBAS量表的等级评分进行比较。还研究了DSI是否与由不同诊断组代表的嗓音障碍严重程度相关。此外，研究了DSI是否能够区分患者组和对照组。总共纳入了294例患有不同嗓音疾病的患者。一个对照组由118名无任何嗓音问题的志愿者组成。所有参与者的嗓音都在等级方面进行了感知评估，并测量了DSI。有嗓音问题的患者组的DSI低于对照组，且等级评分高于对照组。等级评分越高，DSI越低。DSI能够区分非器质性嗓音障碍、声带肿物病变和声带麻痹/瘫痪患者。为了确定DSI是否能区分患者和对照组，计算了不同DSI临界值的敏感性和特异性。当DSI临界值为3.0时，发现最大敏感性（0.72）和特异性（0.75）。我们得出结论，DSI是客观测量嗓音障碍严重程度的有用工具。
