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Correlation of nailfold capillaroscopy findings with history of digital ulcer on same finger: Results of SCLEROCAP study

Abstract : Systemic sclerosis may be complicated by digital ulcers. Nailfold capillaroscopy on one finger might reflect an increased risk of digital ulcer (DU). In the present study we studied the correlations between a history of ulcer and capillary findings on the finger. Method: This study is part of Sclerocap, a multicenter study aiming at validating prospectively the prognostic value of Maricq's and Cutolo's capillaroscopic classifications during a three-year longitudinal follow-up. A history of past or present digital ulcer was recorded at inclusion and nailfold capillaroscopy was performed. Elementary findings as well as Cutolo and Maricq's classifications were assessed. Results: 387 patients were included in Sclerocap (327 females, 60 males) and 3096 fingers were examined by capillaroscopy at inclusion: 316 fingers (10%) belonging to 113 patients had a history of DU. Late Cutolo's stage was statistically correlated with a history of DU, both by univariate: OR 2.08 [1.09-3.96] and multivariate analysis: OR 1.97 [1.06-3.63]. Among the elemental abnormalities, only edema and decreased capillary density were correlated with a history of DU by multivariate analysis: respectively OR 1.92 [1.17-3.16] and 0.65 [0.49-0.85]. Conclusion: This cross-sectional study in a large cohort of patients with systemic sclerosis shows a correlation between a history of digital ulcer and edema, a decrease in capillary density and the late stage in Cutolo's classification. The extent of capillary abnormalities on one finger is associated with a history of local digital ulcer. Capillaroscopy might be used to predict the risk of DU but these results need first to be confirmed by prospective studies.
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Soumis le : lundi 30 mai 2022 - 15:34:46
Dernière modification le : mardi 14 juin 2022 - 11:16:59

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Carine Boulon, Fanny Velardo, Sophie Blaise, Marion Mangin, Joelle Decamps-Le Chevoir, et al.. Correlation of nailfold capillaroscopy findings with history of digital ulcer on same finger: Results of SCLEROCAP study. Microvascular Research, Elsevier, 2022, 142, pp.104365. ⟨10.1016/j.mvr.2022.104365⟩. ⟨hal-03681824⟩

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