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Revista argentina de reumatología
Print version ISSN 0327-4411On-line version ISSN 2362-3675
Abstract
IZAGUIRRE, Pía et al. Reliability of nailfold videocapillaroscopy workshop. Rev. argent. reumatolg. [online]. 2022, vol.33, n.4, pp.223-227. ISSN 0327-4411. http://dx.doi.org/10.47196/rar.v33i4.709.
Introduction:
videoapillaroscopy is a non-invasive method that allows the observation of the microvasculature in the periungual area. Reported results can be highly variable between different observers. Over time, quantitative and semi-quantitative methods emerged to improve reproducibility.
Objetives:
to know the level of intra and interobserver agreement when reporting the different capillaroscopic patterns in individuals with different levels of training.
Materials and methods:
cross section study. Specialist rheumatologists and those in training who had previously completed a virtual capillaroscopy training course participated. They received 40 capillaroscopic images projected in a PowerPoint presentation and had to issue their response through a digital questionnaire. Concordance of intra and interobserver responses was evaluated.
Results:
a high level of global agreement was found with a kappa 0.66 CI 95% (0.63-0.70) p<0.0000, also in other groups such as rheumatologists in training: kappa 0.65 CI 95% (0.60-0.71) p=0.0000, physicians rheumatologists: kappa 0.67 95% CI (0.62-0.72) p=0.0000.
Conclusions:
the level of agreement found was globally high, regardless of the level of training of the professionals, and whether or not they were a rheumatologist. Concordance was higher when compared to those who had more than 4 years of experience performing videocapillaroscopy.
Keywords : videocapillaroscopy; intra-interobserver reproducibility; systemic sclerosis; correlation coefficient.