Abstract

Digital ulcers (DUs) represent one of the major burdens for patients with systemic sclerosis (SSc), especially when associated with skin calcinosis (SC). The aim of this work is to evaluate the impact of SC in DUs of patients with SSc for clinical characteristics and prognosis assessed by the wound bed score (WBS). We prospectively enrolled 55 patients with DUs and SSc followed in our dedicated wound care clinic. For all the patients we collected clinical and anthropometric data and characteristics of the DU, and we calculated the WBS for each DU. Ninety-nine DUs were evaluated (24 with SC). SC was prevalent in limited cutaneous SSc (75%) and in patients with longer disease duration (P = 0.02). SC-DUs were prevalent at the fingertip (P = 0.04). The healing time was significantly higher in patients with SC (10.4 ± 7.9 weeks) compared with non-SC (7.0 ± 5.7 weeks) P = 0.03. The WBS negatively correlated with the time to achieve complete healing (r = -0.237 P = 0.023) and the correlation was maintained in the non-SC (r = -0.46, P = 0.033). DUs in SSc patients with SC are common and difficult to heal. When DUs are treated in dedicated centres, the prognosis is good. The WBS is fast and easy and maybe commonly applied in clinical practice.

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