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Optimizing the anti-inflammatory strategies in (osteo)arthritis: local or systemic? THE QUARTERLY JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING : OFFICIAL PUBLICATION OF THE ITALIAN ASSOCIATION OF NUCLEAR MEDICINE (AIMN) [AND] THE INTERNATIONAL ASSOCIATION OF RADIOPHARMACOLOGY (IAR), [AND] SECTION OF THE SOCIETY OF... 2022; 66:311-318. [PMID: 35838028 DOI: 10.23736/s1824-4785.22.03477-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Arthritis is affecting millions of people globally, involvement and distribution depending on the type of arthritis. The most common arthritic conditions are osteoarthritis (OA) and rheumatoid arthritis (RA). Despite the pathogeneses being fundamentally different, both joint diseases share the same need for local treatment of synovitis. No current treatment can stop the progression of OA. Local articulate treatment including glucocorticoid (GC) injections, radiosynoviorthesis (RSO) and surgical synovectomy are the only options to relieve pain and temporally improve movability before surgical intervention. For RA, despite effective systemic treatments, similarly need for local articulate treatment is still present, especially early in the disease, but also in case of recurrent episodes of disease flare. Current evidence supports local GC injection as first line treatment for persistent synovitis in a single or a few joints. RSO provides an evident and effective alternative for GC refractory synovitis, especially in early RA. Surgical synovectomy is an invasive alternative, but with less documented efficacy. Whether one unsuccessful intraarticular GC injection is enough to change of mode of action for local treatment is still unclear and needs to be further investigated. In conclusion persistent single joint synovitis in OA and RA is well treated with local treatment. Intra-articular GC injection is considered as first line of treatment, but RSO provides an additional treatment alternative with less side effects and better evidence of efficacy than surgical synovectomy.
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The EFSUMB Guidelines and Recommendations for Musculoskeletal Ultrasound - Part II: Joint Pathologies, Pediatric Applications, and Guided Procedures. ULTRASCHALL IN DER MEDIZIN (STUTTGART, GERMANY : 1980) 2022; 43:252-273. [PMID: 34734404 DOI: 10.1055/a-1640-9183] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The second part of the Guidelines and Recommendations for Musculoskeletal Ultrasound (MSUS), produced under the auspices of EFSUMB, following the same methodology as for Part 1, provides information and recommendations on the use of this imaging modality for joint pathology, pediatric applications, and musculoskeletal ultrasound-guided procedures. Clinical application, practical points, limitations, and artifacts are described and discussed for every joint or procedure. The document is intended to guide clinical users in their daily practice.
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Ultrasonographic Assessment for Tenosynovitis in Juvenile Idiopathic Arthritis with Ankle Involvement: Diagnostic and Therapeutic Significance. CHILDREN 2022; 9:children9040509. [PMID: 35455553 PMCID: PMC9031705 DOI: 10.3390/children9040509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 03/29/2022] [Accepted: 04/01/2022] [Indexed: 11/16/2022]
Abstract
Background: The role of musculoskeletal ultrasound in JIA is still controversial, although there is growing evidence on its utility, especially in the diagnosis of tenosynovitis. Methods: We presented a retrospective cross-sectional study of a group of patients with JIA with ankle swelling followed in a Pediatric Rheumatology Service of a tertiary-level pediatric hospital in Northern Italy during the follow-up period between January 1st 2003 and December 31st 2019. Preliminary results have been presented at the EULAR Congress 2021. We enrolled only patients who underwent msk-US, and we identified those with a clinical and sonographic diagnosis of tenosynovitis. For each patient, we collected data on demographics, clinical characteristics, and therapeutic strategies during the follow-up. Results: On December 31st 2019, 56 swollen ankles of 48 patients were assessed with msk-US. Twenty-two ankles showed sonographic signs of joint synovitis, sixteen ankles presented signs of both joint synovitis and tenosynovitis, and fourteen ankles presented sonographic signs of tenosynovitis only. Overall, tenosynovitis was detected on 27 (56%) out of 48 children with at least a swollen ankle. In 13 patients out of 27 with tenosynovitis (48%), there was no joint synovitis of ankle or foot. Twenty-five patients with tenosynovitis (92%) achieved clinical and radiological remission: seven patients achieved remission of tenosynovitis with methotrexate only, and fifteen patients with biological drugs alone or in combination therapy. Conclusions: We observed that more than half of the patients with ankle swelling presented a tenosynovitis, and about 50% of them did not show sonographic signs of an active joint synovitis. Among patients with tenosynovitis, biological therapy alone or in association with DMARDs showed effectiveness in inducing disease remission.
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Ultrasound Effectiveness of Steroid Injection for hand Psoriatic Dactylitis: Results from a Longitudinal Observational Study. Rheumatol Ther 2021; 8:1809-1826. [PMID: 34652687 PMCID: PMC8572270 DOI: 10.1007/s40744-021-00383-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 09/29/2021] [Indexed: 12/29/2022] Open
Abstract
Introduction To assess clinical and ultrasound effectiveness of steroid injection (local treatment, LT) into the digital flexor tendon sheath for the treatment of psoriatic dactylitis compared to systemic treatment (ST) alone. Methods In this observational, multicentre, prospective study, 88 cases of symptomatic hand dactylitis were evaluated clinically and sonographically by high-frequency ultrasound (US) probe in both greyscale (GS) and power Doppler (PD). The presence of flexor tenosynovitis (FT), soft tissue oedema (STO), peritendon extensor inflammation and synovitis was assessed (including DACtylitis glObal Sonographic—DACTOS—score) before treatment, at 1-month (T1) and 3-months (T3) follow-up. LT was proposed to all patients. Patients refusing LT were treated with oral NSAIDs. Patients continued the same baseline csDMARDs and/or corticosteroid therapy during the whole follow-up period. US response was defined for DACTOS score < 3 and US remission for DACTOS score = 0. Results At T3 evaluation the ST group showed a significantly higher persistence (grade > 1) of FT and STO (p < 0.001 for all) and MCP synovitis (p = 0.001). US remission was achieved only in the LT group (at T3 31% vs. 0, p < 0.001). The percentage of patients with DACTOS < 3 was significantly greater in the LT group compared with ST group, at both T1 (49% vs. 5%, p < 0.001) and T3 evaluation (76% vs. 7%, p < 0.001). In multiple conditional logistic regression analysis, the only factor associated with US remission was LT (T3 odds ratio = 41.21, p < 0.001). Conclusions US confirmed the effectiveness of steroid injection for dactylitis by demonstrating that it involves the resolution of extra-articular inflammation, in particular FT and STO.
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Corticosteroid injection treatment for dactylitis in psoriatic arthritis. Ther Adv Musculoskelet Dis 2021; 13:1759720X211041864. [PMID: 34471429 PMCID: PMC8404638 DOI: 10.1177/1759720x211041864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 08/06/2021] [Indexed: 11/16/2022] Open
Abstract
Dactylitis – a hallmark clinical feature of psoriatic arthritis (PsA) – that occurs in 30–50% of PsA patients, is a marker of disease severity for PsA progression, an independent predictor of cardiovascular morbidity and impairs the motor functions of PsA patients. There is a paucity of evidence for the treatment due to the absence of randomized controlled trials assessing dactylitis as a primary endpoint and current practice arises from the analysis of dactylitis as a secondary outcome. Corticosteroid (CS) injections for dactylitis in PsA patients are a therapeutic treatment option for patients with isolated dactylitis or for patients with flares in tendon sheaths, despite stable and effective systemic treatment. The aim of this narrative review is to briefly illustrate the clinical aspects of dactylitis in PsA, the imaging and clinimetric tools used to diagnose and monitor dactylitis, the current treatment strategies and principally to provide a comprehensive picture of the clinical efficacy and safety with ultrasound-guide and blind techniques of CS injections for dactylitis in PsA patients.
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Ultrasound-Guided Procedures in Rheumatology Daily Practice: Feasibility, Accuracy, and Safety Issues. J Clin Rheumatol 2021; 27:226-231. [PMID: 32000229 DOI: 10.1097/rhu.0000000000001298] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND/OBJECTIVE The aims of this study were to describe in detail the ultrasound (US)-guided procedures in our daily rheumatology practice, to evaluate the feasibility and accuracy of US-guided procedures, and to test the efficacy of our disinfection protocol in preventing infectious complications. METHODS This was a cross-sectional and monocentric study. Information regarding patients' age, sex, body mass index, rheumatic disease, US pathological findings, aspirated and/or injected anatomical site, US equipment (ie, probe type and frequency), and needle type was consecutively collected for each US-guided procedure in a third-level rheumatology center. RESULTS A total of 643 US-guided procedures were performed, with a mean of 5.2 procedures per working-day. In 94.2% of the patients, only one procedure was carried out, whereas in 5.8%, more than one. The mean time was 7 ± 2.5 minutes. Ultrasound-guided procedures were highly accurate (accuracy rate higher than 95%) and safe (adverse events were reported in 0.8%). Our disinfection protocol was effective in preventing infectious complications. Probes with frequency values between 8 to 13 MHz and 20-, 21-, and 22-gauge needles were the most frequently used at shoulder, knee, wrist, elbow, and ankle level. High-frequency linear probes (ranging between 18 and 22 MHz) and 23- and 25-gauge needles were used for injecting small joints of the hands and feet. Convex low-frequency probe (2-7 MHz) and 18- and 20-gauge needles were the most used for performing hip joint aspirations and/or injections. CONCLUSIONS This study reports useful information for setting up a service providing US-guided procedures in rheumatology and supports the feasibility, accuracy, and safety of US-guided procedures.
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Psoriatic Dactylitis: Current Perspectives and New Insights in Ultrasonography and Magnetic Resonance Imaging. J Clin Med 2021; 10:jcm10122604. [PMID: 34204773 PMCID: PMC8231617 DOI: 10.3390/jcm10122604] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 06/06/2021] [Accepted: 06/09/2021] [Indexed: 01/08/2023] Open
Abstract
Dactylitis, one of the most typical features of psoriatic arthritis (PsA), is the diffuse swelling of the digits and is determined by the involvement of different anatomic structures, including: the subcutaneous fibrous tissue “accessory pulley” system; flexor tendons, with their related structures; the articular synovium; the small enthesis of the hands. Dactylitis is currently considered both a marker of disease activity and severe prognosis and its importance in PsA is emphasized by the inclusion in the classification criteria of PsA. This review focuses on the role of imaging in the management of PsA patients with dactylitis in clinical practice and in a research setting. Furthermore, imaging could be a valuable tool to assist in unravelling some of the underlying mechanisms of the onset and chronicization of dactylitis in PsA patients.
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Recommendations for the pragmatic use of ultrasound in rheumatoid arthritis by the GEISPER French group. Joint Bone Spine 2021; 88:105187. [PMID: 33892194 DOI: 10.1016/j.jbspin.2021.105187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 03/30/2021] [Indexed: 11/21/2022]
Abstract
OBJECTIVE To develop recommendations for the appropriate use of ultrasound in the management of rheumatoid arthritis (RA) in routine practice based on data from the literature and of experts opinion. METHODS Based on a systematic literature review, a scientific committee decided on themes and relevant questions to draw up an initial draft of recommendations. These recommendations were submitted to a group of experts in ultrasound in rheumatic and musculoskeletal diseases using a Delphi method, which produced preliminary recommendations. These were submitted to an expanded group of ultrasound experts for relevance, comprehensibility and comprehensiveness. The level of agreement of the experts were recorded during a face-to-face meeting. RESULTS Following two rounds of the Delphi, a consensus was reached on three overarching principles, including definitions of joints, tendons and articular sites to be examined, and 10 recommendations. These recommendations underline the benefit of ultrasound for the diagnosis of RA in cases of inflammatory arthralgia or undifferentiated arthritis as well as in assessing the extent of initial structural and inflammatory damage. They also define the role of ultrasound during follow-up or when considering treatment reduction once clinical remission has been achieved. Lastly, they illustrate the utility of ultrasound in facilitating technical procedures. CONCLUSION These 10 consensus-based recommendations should harmonize and optimize clinical practice and thus improve the management of RA patients.
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Effectiveness of steroid injection for hand psoriatic dactylitis: results from a multicentre prospective observational study. Clin Rheumatol 2020; 39:3383-3392. [PMID: 32418040 DOI: 10.1007/s10067-020-05142-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 04/25/2020] [Accepted: 05/01/2020] [Indexed: 12/20/2022]
Abstract
OBJECTIVE To assess the effectiveness of steroid injection (local treatment, LT) into the digital flexor tendon sheath of dactylitis in psoriatic arthritis (PsA) patients as compared with systemic treatment (ST). METHODS Forty-six PsA patients with a total of 73 dactylitic fingers were assessed in an observational, multicentre, prospective study by the Leeds Dactylitis Index basic (LDI-b) score and evaluated for local pain (visual analogue scale-VAS pain) and functional impairment (VAS-FI). Steroid injection was proposed to all patients. Patients refusing LT were treated with oral NSAIDs. Both the groups continued baseline csDMARDs and/or corticosteroids therapy. The clinical outcomes were measured at baseline, 1 month (T1) and 3 months (T3). RESULTS The reduction of VAS-pain, VAS-FI and LDI-b values was statistically significant higher in the LT group (24 patients, 38 dactylitic fingers) as compared with the ST group (22 patients, 35 dactylitic fingers), both at T1 (p < 0.001, p < 0.001 and p = 0.008, respectively) and at T3 (p < 0.001, p < 0.001 and p < 0.001, respectively). A clinically meaningful treatment response (defined as a contemporary reduction of at least 5 points in VAS-pain and VAS-FI or as values of VAS-pain and VAS-FI were both ≤ 2) was observed at T1 in 33 (87%) digits in LT group and in 6 (17%) digits in ST group (p < 0.001). At T3, clinical response improved significantly in both the groups, with significant difference (94% vs 31%, p < 0.001). CONCLUSIONS For the first time, we show the effectiveness of steroid injection into the digital flexor tendon sheath in improving clinical aspects of hand psoriatic dactylitis. Key Points • Therapy with steroid injection (local treatment, LT), into the digital flexor tendon sheath for the treatment of active dactylitis in psoriatic arthritis patients, is more effective when compared with systemic treatment (ST) alone. • The reduction of VAS-pain, VAS-functional impairment (VAS-FI) and Leeds Dactylitis Index basic values was statistically significant higher in the LT group as compared with the ST group, both at T1and at T3. • A clinically meaningful response was observed at T1 in 87% of digits of patients treated with steroid injection and in 17% of digits of the systemic treatment group (p < 0.001). At T3, clinical response improved significantly in both the groups, with significant difference. • For the first time, findings from this study show that the use of steroid injections into the digital flexor tendon sheath for psoriatic dactylitis could be an effective and safe first-line therapy for psoriatic dactylitis.
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Management of rheumatoid arthritis: 2019 updated consensus recommendations from the Hong Kong Society of Rheumatology. Clin Rheumatol 2019; 38:3331-3350. [PMID: 31485846 DOI: 10.1007/s10067-019-04761-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 08/16/2019] [Accepted: 08/20/2019] [Indexed: 12/13/2022]
Abstract
The expanding range of treatment options for rheumatoid arthritis (RA), from conventional synthetic disease-modifying antirheumatic drugs (DMARDs) to biological DMARDs (bDMARDs), biosimilar bDMARDs, and targeted synthetic DMARDs, has improved patient outcomes but increased the complexity of treatment decisions. These updated consensus recommendations from the Hong Kong Society of Rheumatology provide guidance on the management of RA, with a focus on how to integrate newly available DMARDs into clinical practice. The recommendations were developed based on evidence from the literature along with local expert opinion. Early diagnosis of RA and prompt initiation of effective therapy remain crucial and we suggest a treat-to-target approach to guide optimal sequencing of DMARDs in RA patients to achieve tight disease control. Newly available DMARDs are incorporated in the treatment algorithm, resulting in a greater range of second-line treatment options. In the event of treatment failure or intolerance, switching to another DMARD with a similar or different mode of action may be considered. Given the variety of available treatments and the heterogeneity of patients with RA, treatment decisions should be tailored to the individual patient taking into consideration prognostic factors, medical comorbidities, drug safety, cost of treatment, and patient preference.
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The agreement between ultrasound-determined joint inflammation and clinical signs in patients with rheumatoid arthritis. Arthritis Res Ther 2019; 21:100. [PMID: 30995934 PMCID: PMC6471966 DOI: 10.1186/s13075-019-1892-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Accepted: 04/04/2019] [Indexed: 12/13/2022] Open
Abstract
Background Ultrasound (US) is sensitive for detecting joint and tendon inflammation in patients with rheumatoid arthritis (RA). So far, which grade of abnormalities on US corresponds to clinical manifestations is unclear. This study aimed to investigate the agreement between US-detected joint inflammation and clinical signs (joint swelling and tenderness). Methods In this cross-sectional study, 22 joints of the wrists and hands were, respectively, evaluated by physical examination (PE) and ultrasound in RA patients. Gray scale (GS) and power Doppler (PD) of synovitis, detected by ultrasound, were graded by semi-quantitative scoring systems (0–3). Tenosynovitis and peritendinitis were assessed qualitatively (0/1). Results A total of 258 consecutive RA patients were included, with median disease duration of 57 months and mean Disease Activity Score based on 28 joints (DAS28)-ESR/DAS28-CRP of 4.47/3.99. In a total of 5676 joints assessed, the overall concordance rate between positive clinical signs and ultrasound-determined joint inflammation was fair (κ = 0.365, p < 0.01). In wrists, joint tenderness showed higher κ coefficient (κ = 0.329, p < 0.01) with ultrasound-determined joint inflammation than swelling (κ = 0.263, p < 0.01); however, swelling showed higher κ coefficient (κ = 0.156–0.536, p < 0.01) with ultrasound-determined joint inflammation than tenderness (κ = 0.061–0.355, p < 0.01) in metacarpophalangeal (MCP) and proximal interphalangeal (PIP) joints. Synovitis had consistently higher agreement with tenderness and swelling than tenosynovitis/peritendinitis. Tenderness and swelling had the highest κ coefficient with GS ≥ 1 synovial hyperplasia in most MCP and PIP joints, while with GS ≥ 2 synovial hyperplasia in wrists. For all 22 joints, PD ≥ 1 synovitis had the highest κ coefficient with clinical tenderness and swelling. Conclusions Synovitis had better agreement with clinical signs than tenosynovitis/peritendinitis. Joint swelling showed better agreement with US-determined inflammation than tenderness for MCP and PIP joints, while the opposite for wrists. Both tenderness and swelling are more likely to correspond to GS ≥ 2 for wrists, GS ≥ 1 for MCP and PIP joints, and PD ≥ 1 for any joint.
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The OMERACT Stepwise Approach to Select and Develop Imaging Outcome Measurement Instruments: The Musculoskeletal Ultrasound Example. J Rheumatol 2019; 46:1394-1400. [DOI: 10.3899/jrheum.181158] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/31/2019] [Indexed: 02/08/2023]
Abstract
Objective.To describe the Outcome Measures in Rheumatology (OMERACT) stepwise approach to select and develop an imaging instrument with musculoskeletal ultrasound (US) as an example.Methods.The OMERACT US Working Group (WG) developed a 4-step process to select instruments based on imaging. Step 1 applies the OMERACT Framework Instrument Selection Algorithm (OFISA) to existing US outcome measurement instruments for a specific indication. This step requires a literature review focused on the truth, discrimination, and feasibility aspects of the instrument for the target pathology. When the evidence is completely unsatisfactory, Step 2 is a consensus process to define the US characteristics of the target pathology including one or more so-called “elementary lesions”. Step 3 applies the agreed definitions to the image, evaluates their reliability, develops a severity grading of the lesion(s) at a given anatomical site, and evaluates the effect of the acquisition technique on feasibility and lesion(s) detection. Step 4 applies and assesses the definition(s) and scoring system(s) in cross-sectional studies and multicenter trials. The imaging instrument is now ready to pass a final OFISA check.Results.With this process in place, the US WG now has 18 subgroups developing US instruments in 10 different diseases. Half of them have passed Step 3, and the groups for enthesitis (spondyloarthritis, psoriatic arthritis), synovitis, and tenosynovitis (rheumatoid arthritis) have finished Step 4.Conclusion.The US WG approach to select and develop outcome measurement instruments based on imaging has been repeatedly and successfully applied in US, but is generic for imaging and fits with OMERACT Filter 2.1.
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The Use of the OMERACT Ultrasound Tenosynovitis Scoring System in Multicenter Clinical Trials. J Rheumatol 2017; 45:165-169. [PMID: 29247153 DOI: 10.3899/jrheum.170501] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/08/2017] [Indexed: 01/02/2023]
Abstract
OBJECTIVE To test the sensitivity to change of the Outcome Measures in Rheumatology Clinical Trials (OMERACT) ultrasound (US) scoring system for tenosynovitis when applied in a multicenter design. METHODS RA patients with US-verified tenosynovitis were recruited when scheduled for treatment intensification. Tenosynovitis was assessed at baseline, and 3 and 6 months followup, using the semiquantitative OMERACT scoring system. RESULTS Expressed in median (25th; 75th percentiles), the overall greyscale and Doppler score decreased significantly from baseline at 4 (2; 7) and 3 (2; 6), to 6 months at 2 (0; 3) and 0 (0; 1, p < 0.01), respectively, and showed high responsiveness (standardized response mean ≥ 0.8). CONCLUSION The OMERACT US scoring system for tenosynovitis showed high responsiveness, supporting its use for diagnosing and monitoring tenosynovitis in multicenter trials.
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Rheumatoid arthritis: Local versus systemic treatment for tenosynovitis. Nat Rev Rheumatol 2016; 12:622. [PMID: 27652500 DOI: 10.1038/nrrheum.2016.164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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