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Aim: To define and score finger soft tissue oedema in psoriatic dactylitis by ultrasound.Material and methods: A systematic literature review (SLR) on ultrasound-detected finger soft tissue oedema was performed. Subsequently, based on the SLR, a Delphi survey was developed and circulated among a group of 13 expert sonographers, in order to obtain agreement on detection, definition and scoring of finger oedema by B-mode and power Doppler ultrasound. Agreement was considered achieved when each statement was approved by >75% of participants.Results: At the first Delphi round, 91 % agreement was obtained for the scanning technique to adopt, including the most appropriate area to evaluate. At the second round, 76% agreement was achieved on the definition of soft tissue finger oedema. At the third round, 76% agreement was obtained for B-mode and power Doppler scores. The volar aspect of the finger and comparisons with the contralateral side were agreed to be the most appropriate in terms of scanning technique. Agreed ultrasound definition of finger soft tissue oedema was “abnormal hypoechoic/anechoic areas, diffused or localized within the subcutaneous tissue between the epidermidis and the tendon-related anatomic structures (i.e. flexor tendon sheath, peritenonium, tendon pulleys), with local thickening, with or without local abnormal Doppler signal, visualised in two perpendicular planes and not evident on the contralateral side”. Semiquantitative (0-3) scores for both B-mode and power Doppler were agreed to be the most appropriate to be used.Conclusion: Our work produced, for the first time, technical indications, definition and scoring for the ultrasound assessment of soft tissue oedema in psoriatic dactylitis

Introduction Whether biologic therapies enhance the risk of coronavirus 2019 (COVID-19) or affect the disease outcome in patients with chronic plaque psoriasis remains to be ascertained. Objective We sought to investigate the incidence of hospitalization and death for COVID-19 in a large sample of patients with plaque psoriasis receiving biologic therapies compared with the general population. Methods This is a retrospective multicenter cohort study including patients with chronic plaque psoriasis (n = 6501) being treated with biologic therapy and regularly followed up at the divisions of dermatology of several main hospitals in the Northern Italian cities of Verona, Padua, Vicenza, Modena, Bologna, Piacenza, Turin, and Milan. Incidence rates of hospitalization and death per 10,000 person-months with exact mid-p 95% CIs and standardized incidence ratios were estimated in the patients with psoriasis and compared with those in the general population in the same geographic areas. Results The incidence rate of hospitalization for COVID-19 was 11.7 (95% CI, 7.2-18.1) per 10,000 person-months in patients with psoriasis and 14.4 (95% CI, 14.3-14.5) in the general population; the incidence rate of death from COVID-19 was 1.3 (95% CI, 0.2-4.3) and 4.7 (95% CI, 4.6-4.7) in patients with psoriasis and the general population, respectively. The standardized incidence ratio of hospitalization and death in patients with psoriasis compared with those in the general population was 0.94 (95% CI, 0.57-1.45; P = .82) and 0.42 (95% CI, 0.07-1.38; P = .19), respectively. Conclusions Our data did not show any adverse impact of biologics on COVID-19 outcome in patients with psoriasis. We would not advise biologic discontinuation in patients on treatment since more than 6 months and not infected with severe acute respiratory syndrome coronavirus 2 to prevent hospitalization and death from COVID-19.

Few studies have compared the use of different biologics in a real-life setting in plaque psoriasis patients.To compare the efficacy of biologics in psoriasis/psoriatic arthritis patients.Patients treated with adalimumab, etanercept and ustekinumab for at least 16 weeks were included. Achievement of Psoriasis Area Severity Index (PASI), PASI 90/100 response and time taken to achieve PASI 90/100 response were measured. Logistic regression was used to evaluate the effect of psoriasis localization on achievement of PASI 100 response.Two hundred and fifty five patients were included. No difference was observed in PASI 90 response between etanercept and ustekinumab (65.5 vs. 55.4%), while adalimumab-treated patients had a higher response versusustekinumab (71.6 vs. 55.4%, p = .02). More patients achieved complete remission (PASI 100 response) with adalimumab versus etanercept (65.7 vs. 23%, p .001) or ustekinumab (65.7 vs. 44.6%, p = .003). Adalimumab-treated patients achieving PASI 90 responded more quickly (by three and six months) versus ustekinumab or etanercept. PASI100 response was achieved in ∼43% of adalimumab and ustekinumab treated-patients by three months versus etanercept (14.3%), increasing to 92.5, 85.4 and 35.7%, respectively by six months. PASI100 response was associated with psoriasis nail involvement or genital psoriasis.In the real-life setting, adalimumab was the most effective biological agent for the treatment of plaque psoriasis.