Reliability of nailfold videocapillaroscopy evaluation in patients with Raynaud's phenomenon
10.12007/j.issn.0258-4646.2024.12.008
- VernacularTitle:雷诺现象患者甲襞视频毛细血管镜图像评估的一致性
- Author:
Chunxiao WANG
1
;
Haiyan XU
;
Xiaoli JIANG
;
Feifei JIANG
;
Yue ZHUANG
Author Information
1. 电子科技大学医学院护理教研室,成都 610054
- Publication Type:Journal Article
- Keywords:
nailfold capillaroscopy;
Raynaud's phenomenon;
reliability;
intraclass correlation coefficient
- From:
Journal of China Medical University
2024;53(12):1107-1110,1117
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the reliability of nailfold videocapillaroscopy (NVC) in patients with Raynaud's phenomenon (RP). Methods A total of 302 participants with RP at Sichuan Provincial People's Hospital were examined using NVC with a 200× magni-fication to acquire images from six digits (the second,third,and fourth fingers of both hands) of patients with RP,and 3805 NVC images were obtained. Five rheumatologists assessed the obtained NVC images separately,using the European League against Rheumatism Study Group on Microcirculation in Rheumatic Diseases standardized capillaroscopy evaluation chart. Two months later,the same rheumatolo-gists re-evaluated one-fifth of the randomly selected patients. The intraclass correlation coefficient was used to analyze the inter-and intra-observer reliability. Results When evaluating NVC images,the inter-observer and intra-observer reliabilities of the five researchers were good,and the intraclass correlation coefficient values were 0.724-0.930 (P<0.001) and 0.841-0.939 (P<0.001),respectively. In the subgroup analysis of different patterns of NVC images,four out of five investigators showed moderate to good inter-observer agreement,and only one beginner had poor agreement in identifying normal,non-specific,and early patterns. Conclusion Rheumatologists with dif-ferent experience levels showed good agreement in evaluating NVC images in patients with RP,suggesting that NVC examination has good reliability and reproducibility.
