Responsiveness in rheumatoid arthritis. a report from the OMERACT 11 ultrasound workshop.
OBJECTIVE
To summarize the work performed by the Outcome Measures in Rheumatology (OMERACT) Ultrasound (US) Task Force on the validity of different US measures in rheumatoid arthritis (RA) and juvenile idiopathic arthritis (JIA) presented during the OMERACT 11 Workshop.


METHODS
The Task Force is an international group aiming to iteratively improve the role of US in arthritis clinical trials. Recently a major focus of the group has been the assessment of responsiveness of a person-level US synovitis score in RA: the US Global Synovitis Score (US-GLOSS) combines synovial hypertrophy and power Doppler signal in a composite score detected at joint level. Work has also commenced examining assessment of tenosynovitis in RA and the role of US in JIA.


RESULTS
The US-GLOSS was tested in a large RA cohort treated with biologic therapy. It showed early signs of improvement in synovitis starting at Day 7 and increasing to Month 6, and demonstrated sensitivity to change of the proposed grading. Subsequent voting questions concerning the application of the US-GLOSS were endorsed by > 80% of OMERACT delegates. A standardized US scoring system for detecting and grading severity of RA tenosynovitis and tendon damage has been developed, and acceptable reliability data were presented from a series of exercises. A preliminary consensus definition of US synovitis in pediatric arthritis has been developed and requires further testing.


CONCLUSIONS
At OMERACT 11, consensus was achieved on the application of the US-GLOSS for evaluating synovitis in RA; and work continues on development of RA tenosynovitis scales as well as in JIA synovitis.
From the Rheumatology Unit, Sapienza Università di Roma, Rome, Italy; Rheumatology Department, Hospital General Universitario Gregorio Marañón and Universidad Complutense, Madrid, Spain; University of Leeds and UK National Institute for Health Research (NIHR) Leeds Musculoskeletal Biomedical Research Unit, Leeds, UK; Department of Rheumatology, MC Groep Hospitals, Lelystad, The Netherlands; Hospital Universitario Severo Ochoa, Madrid, Spain; Rheumatology Unit, Cavale Blanche Hospital, Brest, France; University of Erlangen-Nuremberg, Department of Internal Medicine 3, Erlangen; Department of Rheumatology and Clinical Immunology, Charité-Universitätsmedizin Berlin, Charitéplatz, Berlin, Germany; Rheumatology Unit, Azienda Ospedaliero Universitaria Pisana, Pisa, Italy; Department of Rheumatology, Diakonhjemmet Hospital, Oslo, Norway; Université Pierre et Marie Curie, La Pitié Salpêtriere Hospital, APHP, Paris, France; University of Florida College of Medicine, Jacksonville, Florida, USA; Division of Rheumatology, CHU Pitié-Salpêtrière, Paris, France; Instituto Poal, Barcelona, Spain; Department of Rheumatology, Copenhagen University Hospital at Glostrup, Copenhagen, Denmark; Department of Epidemiology and Biostatistics, Université Paris Ouest-Versailles-Saint Quentin en Yvelines, Hôpital Ambroise Paré, APHP, Boulogne-Billancourt, France; Istanbul Medeniyet University, Goztepe Training and Research Hospital, Istanbul, Turkey; National Institute of Rheumatology and Physiotherapy, Budapest, Hungary; Clinica Reumatologica, Università Politecnica delle Marche, Jesi (Ancona), Italy; Division of Rheumatology, Medical University of Vienna, Vienna, Austria; Biomedical Research, Instituto Nacional de Rehabilitación, Mexico City, Mexico; University of Ottawa, Children's Hospital of Eastern Ontario, Ottawa, Canada; Division of Rheumatology IRCCS Ospedale Pediatrico Bambino Gesù, Rome, Italy; Department of Pediatric Rheumatology, Center for Rheumatic Diseases, Bad
Annamaria
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Iagnocco
Esperanza
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Naredo
Richard
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Wakefield
George A W
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Bruyn
Paz
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Collado
Sandrine
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Jousse-Joulin
Stephanie
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Finzel
Sarah
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Ohrndorf
Andrea
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Delle Sedie
Marina
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Backhaus
Hilde
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Berner-Hammer
Frederique
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Gandjbakhch
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Kaeley
Damien
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Loeuille
Ingrid
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Moller
Lene
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Philippe
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Emilio
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Filippucci
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Carlos
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Pineda
Johannes
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Roth
Silvia
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Magni-Manzoni
Niolay
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Tzaribachev
Wolfgang A
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Schmidt
Philip G
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Conaghan
Maria-Antonietta
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D'Agostino
D001171:Arthritis, Juvenile / Q000000981:diagnostic imaging* / Q000188:drug therapy; D001172:Arthritis, Rheumatoid / Q000000981:diagnostic imaging* / Q000188:drug therapy; D002986:Clinical Trials as Topic; D006801:Humans; D007596:Joints / Q000000981:diagnostic imaging*; D015203:Reproducibility of Results; D012720:Severity of Illness Index; D013585:Synovitis / Q000000981:diagnostic imaging* / Q000188:drug therapy; D016896:Treatment Outcome; D018608:Ultrasonography, Doppler
OMERACT; RESPONSIVENESS; RHEUMATOID ARTHRITIS; ULTRASOUND