Infections of scleroderma digital ulcers: A single center cohort retrospective study

Abstract

Systemic sclerosis (SSc) is a complex autoimmune and up to 50% of patients develop digital ulcers. We revised fifty consecutive patients with SSc-related digital ulcers (DUs) who referred to our Scleroderma Unit. Thirty-five of them who showed clear signs of DUs infection underwent to cutaneous swab and microbiological data collection. We performed 87 cutaneous swabs overall. DUs were recurrent in 58% of the patients and multiple in 60% of patients. Fourty-four swabs (53%) were positive for Staphylococcus aureus (13% Methicillin-Resistant), 9 (10%) were positive for Pseudomonas aeruginosa, and then the others less frequently isolated. Nine patients (25%) needed hospitalization. Our data support a patient-tailored approached to DUs, particularly those infected. Self-hygiene and asepsis during dressing procedures are mandatory. Patient must be trained to avoid dangerous behaviors and reduce the risk of infection.