Department of Occupational Therapy, School of Health Professions, Faculty of Medicine, Tel Aviv University, Tel Aviv-Yafo 69978, Israel.
Reuth Rehabilitation Hospital, Tel Aviv-Yafo 6772830, Israel.
Sensors (Basel). 2023 Sep 18;23(18):7949. doi: 10.3390/s23187949.
Dynamic mechanical allodynia (DMA) is both a symptom and a central sensitization sign, yet no standardized method for quantifying the DMA area has been reported. This study aimed to establish psychometric properties for (), a newly developed protocol measuring the DMA area as a percentage of the body surface.
Seventy-eight patients aged 18-65 diagnosed with chronic complex regional pain syndrome (CRPS) participated in this study. Test-retest reliability was conducted twice, one week apart (N = 20), and inter-rater (N = 3) reliability was conducted on 10 participants. Disease severity (, ), pain intensity (VAS), and quality of life (SF-36) measures were utilized to test construct validity.
High inter-rater reliability (intraclass correlation coefficient (ICC) = 0.96, < 0.001) and test-retest reliability ( = 0.98, < 0.001) were found. Furthermore, the QDA score was found to be correlated with the CSS ( = 0.47, < 0.001), VAS ( = 0.37, < 0.001), and the SF-36 physical health total ( = -0.47, < 0.001) scores.
The QDA is the first developed reliable and valid protocol for measuring DMA in a clinical setting and may be used as a diagnostic and prognostic measure in clinics and in research, advancing the pain precision medicine approach.
动态机械性触诱发痛(DMA)既是一种症状,也是一种中枢敏化的标志,但目前尚无量化 DMA 区域的标准化方法。本研究旨在建立一种新的协议()的心理测量学特性,该协议用于测量 DMA 区域占体表的百分比。
本研究纳入了 78 名年龄在 18-65 岁之间的慢性复杂性区域疼痛综合征(CRPS)患者。采用两次测试(相隔一周,N=20)进行测试-重测信度,对 10 名参与者进行了(N=3)者间信度评估。利用疾病严重程度(,)、疼痛强度(VAS)和生活质量(SF-36)测量来评估构念效度。
发现者间信度(组内相关系数(ICC)=0.96, < 0.001)和测试-重测信度( = 0.98, < 0.001)均较高。此外,QDA 评分与 CSS( = 0.47, < 0.001)、VAS( = 0.37, < 0.001)和 SF-36 身体健康总分( = -0.47, < 0.001)呈正相关。
QDA 是首个用于在临床环境中测量 DMA 的可靠且有效的协议,它可能被用作临床和研究中的诊断和预后指标,推进疼痛精准医学方法。