Reliability of OMERACT ultrasound elementary lesions in gout: results from a multicenter exercise.

The aim of this study was to evaluate the reliability of the outcome measures in rheumatology (OMERACT) definitions for ultrasound (US) elementary lesions in gout through an image reading exercise. Images from patients with gout (static images and videos) were collected. As an initial step, we carried out a image reading exercise within the experts of the Pan-American League of Associations for Rheumatology (PANLAR) US Study Group (n = 16). The following step consisted in a web-based exercise with the participation of larger number of sonographers (n = 63) from different centers. Images were rated evaluating the presence/absence of any US elementary lesion. Inter- and intra-reader reliabilities were analyzed using kappa coefficients. Participants were stratified according to their level of experience. In the first exercise, inter-reader kappa values were 0.45 for aggregates, 0.57 for tophus, 0.69 for erosions, and 0.90 for double contour (DC). Intra-reader kappa values were 0.86, 0.76, 0.80, and 0.90, respectively. The web-based exercise showed inter-reader kappa values for aggregates, tophus, erosions, and DC of 0.42, 0.49, 0.69, and 0.79, respectively. The intra-reader kappa values were 0.62, 0.69, 0.77, and 0.85, respectively. Reliability was not influenced by the sonographer's level of experience. The reliability of the new OMERACT US definitions for elementary lesions in gout ranged from moderate to excellent, depending on the type of lesion.

Can nailfold videocapillaroscopy images be interpreted reliably by different observers? Results of an inter-reader and intra-reader exercise among rheumatologists with different experience in this field.

Nailfold videocapillaroscopy (VCP) allows non-invasive assessment of the microcirculation. Adequate training in this field is relevant for rheumatologists. There is increasing evidence of the reliability of VCP findings among different readers. Objective: To evaluate inter- and intra-reader agreement of rheumatologists to identify normal images and systemic sclerosis (SSc) patterns on VCP ("early," "active," and "late" proposed by Cutolo et al.). Thirteen rheumatologists with different experience in nailfold VCP received training to standardize reading criteria. They rated 60 VCP images from healthy and SSc patients at baseline and 4 weeks later, using an electronic platform. The reading of an expert was considered the gold standard. Data were analyzed using Cohen's kappa for concordance and Student's t test and ANOVA to compare kappa means for inter-reader, intra-reader, and inter-pattern readings. Mean inter-reader and intra-reader kappa were 0.45 and 0.49, respectively, (moderate agreement). Kappa scores were higher among experienced vs inexperienced readers (inter-reader kappa 0.58 vs 0.34, p = 0.001, intra-reader kappa 0.65 vs 0.37, p = 0.01). Agreement was substantial (kappa = 0.61) for the identification of normal vs abnormal images and higher for the identification of active (0.48, p = 0.009) and late SSc patterns (0.56, p = 0.008) than for the early SSc pattern (0.35, p = 0.003). There is moderate agreement among rheumatologists for the identification of SSc videocapillaroscopy patterns (higher among experienced rheumatologists) and substantial agreement, regardless of previous experience in VCP, in the identification of normal and abnormal images. Agreement for the identification of active and late patterns is higher than for the early pattern.

Pan-American League of Associations for Rheumatology (PANLAR) capillaroscopy study group consensus for the format and content of the report in capillaroscopy in rheumatology.

OBJECTIVE: The aim of this work was to produce a consensus-based report for capillaroscopy in rheumatology to be used in daily clinical practice. METHODS: A written Delphi questionnaire regarding capillaroscopy report was developed from a literature review and expert consensus. The Delphi questionnaire was sent to an international panel including 25 rheumatologists experts in capillaroscopy, asking them to rate their level of agreement or disagreement with each statement. The exercise consisted of three online rounds and a face-to-face (live meeting) that took place in the PANLAR 2018 congress held in Buenos Aires, Argentina. RESULTS: The participants to the first, second, third, and face-to-face round were 22, 21, 21, and 16 rheumatologists, respectively. Fifty-five items were discussed in the first round, 58 in the second, 22 in the third, and 9 in the face-to-face meeting. At the end of the exercise, 46 recommendations for the capillaroscopy report in rheumatology reached a consensus. CONCLUSION: This is the first consensus-based report in capillaroscopy. It will be useful in daily clinical practice and to address the effort of the standardization in the technique. KEY POINTS: • The current lack of consensus for the capillaroscopy report makes difficult the interpretation of findings as well as follow-up of rheumatic diseases. • This study produced the first international consensus for the format and content of the naifold capillaroscopy report in rheumatology. • The report is an integral part of the capillaroscopy examination and its use in a homogeneous form can help in the correct interpretation of findings in daily practice.

Tendon involvement in patients with gout: an ultrasound study of prevalence.

The objective of the present study is to evaluate, by ultrasonography (US), the prevalence in the quadriceps, patellar, and Achilles tendon involvement of gout compared to that of patients with osteoarthritis and asymptomatic marathon runners. This is a multicenter, multinational, transverse cross-sectional, and comparative study comprising 80 patients with the diagnosis of gout according to the American College of Rheumatology (ACR) criteria, compared with two control groups: 35 patients with generalized osteoarthritis according to the ACR criteria and 35 subjects who were healthy marathon runners. Demographics and clinical characteristics, such as age, gender, comorbidity, disease duration, pain at the enthesis in the knee and ankle, frequency of disease exacerbations, uric acid level more than 7.2 mg at the time of evaluation, and type of treatment, were recorded. All participants were examined by ultrasound at the quadriceps, the patellar at its proximal and distal insertion, and the Achilles tendon to detect intra-tendinous tophus or aggregates according to the OMERACT definitions. Descriptive statistics and differences between groups were analyzed by chi-square test. Sensitivity and specificity by US were calculated. The prevalence of intra-tendinous aggregates and tophi in gout was significant compared with the other groups. Both lesions were the most frequent at the distal patellar insertion, followed by the quadriceps, Achilles, and proximal patellar insertion ones. In patients with osteoarthritis (OA), intra-tendinous hyperechoic aggregates were observed in 20 % of quadriceps tendons and in 11 % of patellar tendons at its proximal insertion, while in the healthy marathon runner group, the Achilles tendon had this kind of lesion in 17 % of the subjects. Neither the OA nor the healthy marathon runners had intra-tendinous tophi. The sensitivity and specificity of US to detect tophi or aggregates were 69.6 and 92 %, respectively, tendon involvement at the lower limbs in gout is very frequent, particularly in the patellar tendon, and US possesses good sensitivity and specificity for detecting intra-tendinous tophi.

How is the ultrasound in rheumatology used, implemented, and applied in Latin American centers? Results from a multicenter study.

This study aimed to perform an overview of how ultrasound (US) is being used, implemented, and applied in rheumatologic centers in Latin America (LA). A retrospective, multicenter 1-year experience study was undertaken. Eighteen centers from eight countries were involved. The following information were collected: demographic data, indication to perform an US examination, physician that required the examination, and the anatomical region required for the examination. A total of 7167 patients underwent an US examination. The request for US examinations came most frequently from their own institution (5981 (83.45 %)) than from external referral (1186 (16.55 %)). The services that more frequently requested an US examination were rheumatology 5154 (71.91 %), followed by orthopedic 1016 (14.18 %), and rehabilitation 375 (5.23 %). The most frequently scanned area was the shoulder in 1908 cases (26.62 %), followed by hand 1754 (24.47 %), knee 1518 (21.18 %), ankle 574 (8.01 %), and wrist 394 (5.50 %). Osteoarthritis was the most common disease assessed (2279 patients (31.8 %)), followed by rheumatoid arthritis (2125 patients (29.65 %)), psoriatic arthritis (869 patients (12.1 %)), painful shoulder syndrome (545 (7.6 %)), connective tissue disorders (systemic sclerosis 339 (4.7 %), polymyositis/dermatomyositis 107 (1.4 %), Sjögren's syndrome 60 (0.8 %), and systemic lupus erythematosus 57 (0.8 %)). US evaluation was more frequently requested for diagnostic purposes (3981 (55.5 %)) compared to follow-up studies (2649 (36.9 %)), research protocols (339 (4.73 %)), and invasive guided procedures (198 (2.76 %)). US registered increasing applications in rheumatology and highlighted its positive impact in daily clinical practice. US increases the accuracy of the musculoskeletal clinical examination, influence the diagnosis, and the disease management.

Ultrasound in psoriatic arthritis. Can it facilitate a best routine practice in the diagnosis and management of psoriatic arthritis?

Important advances from both therapeutic and clinical assessment have recently been reported in psoriatic arthritis (PsA). Moreover, the constant challenge to provide a more comprehensive assessment of this heterogeneous disease results in a variety of clinical instruments that help the clinician for a global evaluation of both disease activity and responsiveness. The current European League Against Rheumatism (EULAR) recommendations on the use of imaging suggest the use of ultrasound (US) in chronic arthritis to increase the diagnostic accuracy and improvement of its management as compared to clinical examination alone. Although US findings are not firmly established in daily clinical practice, it demonstrated several positive aspects such as good sensitivity and specificity, acceptable reliability, and adequate sensitivity to change, especially in the peripheral PsA. Additionally, recent works introduced the role of US in the assessment of skin and nails opening interesting area of research. The aim of this paper is to describe the potential role of US in the assessment of PsA and to discuss the current evidence supporting its application in daily clinical practice.

[Semester direct cost by rheumatoid arthritis in patients in a university hospital]. / Costo directo semestral por artritis reumatoidea en pacientes que concurren a un hospital universitario.

INTRODUCTION: There are no medical publications with economic analysis of rheumatoid arthritis patients (RA) from Argentina are lacking. The objective of the present study is to determine the direct cost and its breakdown in patients with RA. MATERIAL AND METHODS: Fifty-two patients who met the American College of Rheumatology RA criteria were included. Direct cost was calculated over a follow-up period of 6 months during year 2001. Variables were analyzed with Student's T test, Mann-Whitney U Test, c' or ANOVA as corresponded. P values < 0.05 were considered significant. RESULTS: The mean monthly home income was $426.6 SD 272. The mean half-yearly direct costs was $677.5 SD 376.2. The components of the direct cost were identified and the mean for medication cost was $606.7 (89%), for lab tests was $45.5 (7%), for medical attention $12.5 (2%) and other costs $2.4. No differences in total cost or in medication cost were found when compared considering age, evolution time of RA or HAQ scores. CONCLUSION: Half-yearly direct cost in RA is excessively high considering the monthly mean income of the patients being analyzed. The cost of medication was the principal component of the direct cost.

El ultrasonido en el estudio del síndrome de codo doloroso: [revisión] / Ultrasound in the study of elbow pain syndrome: [review]

La ultrasonografía es una herramienta útil para la evaluación de las anormalidades del codo, especialmente aquellas relacionadas con artropatías inflamatorias, mecánicas y degenerativas, al deporte, con actividades repetitivas o con entesitis. Es una herramienta dinámica que permite evaluar tanto estructuras extraarticulares como los ligamentos, tendones, músculos, bursas, entesis, nervios y vasos, así como las estructuras intraarticulares como los recesos articulares, cartílagos y superficies óseas articuladas. El objetivo de esta revision es brindar una actualizacion del uso de este método de imagen en las patologías más frecuentes que afectan el codo.

Ultrasonography is a useful tool for evaluation of abnormalities of the elbow, especially those related to inflammatory arthritis, mechanical and degenerative diseases, sports with repetitive activities or enthesitis. It is a dynamic tool that provides an evaluation of extra-articular structures such as ligaments, tendons, muscles, bursas, enthesis, nerves and vessels, as well as intra-articular structures such as joint recess, cartilage and bone surfaces articulated. The aim of this review is to provide an update on the use of this method of image in the most common diseases that affect the elbow.

Costo directo semestral por artritis reumatoidea en pacientes que concurren a un hospital universitario / Semester direct cost by rheumatoid arthritis in patients in a university hospital

INTRODUCTION: There are no medical publications with economic analysis of rheumatoid arthritis patients (RA) from Argentina are lacking. The objective of the present study is to determine the direct cost and its breakdown in patients with RA. MATERIAL AND METHODS: Fifty-two patients who met the American College of Rheumatology RA criteria were included. Direct cost was calculated over a follow-up period of 6 months during year 2001. Variables were analyzed with Student's T test, Mann-Whitney U Test, c' or ANOVA as corresponded. P values < 0.05 were considered significant. RESULTS: The mean monthly home income was $426.6 SD 272. The mean half-yearly direct costs was $677.5 SD 376.2. The components of the direct cost were identified and the mean for medication cost was $606.7 (89 per cent), for lab tests was $45.5 (7 per cent), for medical attention $12.5 (2 per cent) and other costs $2.4. No differences in total cost or in medication cost were found when compared considering age, evolution time of RA or HAQ scores. CONCLUSION: Half-yearly direct cost in RA is excessively high considering the monthly mean income of the patients being analyzed. The cost of medication was the principal component of the direct cost.

Costo directo semestral por artritis reumatoidea en pacientes que concurren a un hospital universitario / Semester direct cost by rheumatoid arthritis in patients in a university hospital

INTRODUCTION: There are no medical publications with economic analysis of rheumatoid arthritis patients (RA) from Argentina are lacking. The objective of the present study is to determine the direct cost and its breakdown in patients with RA. MATERIAL AND METHODS: Fifty-two patients who met the American College of Rheumatology RA criteria were included. Direct cost was calculated over a follow-up period of 6 months during year 2001. Variables were analyzed with Students T test, Mann-Whitney U Test, c or ANOVA as corresponded. P values < 0.05 were considered significant. RESULTS: The mean monthly home income was $426.6 SD 272. The mean half-yearly direct costs was $677.5 SD 376.2. The components of the direct cost were identified and the mean for medication cost was $606.7 (89 per cent), for lab tests was $45.5 (7 per cent), for medical attention $12.5 (2 per cent) and other costs $2.4. No differences in total cost or in medication cost were found when compared considering age, evolution time of RA or HAQ scores. CONCLUSION: Half-yearly direct cost in RA is excessively high considering the monthly mean income of the patients being analyzed. The cost of medication was the principal component of the direct cost. (AU)

Costo directo semestral por artritis reumatoidea en pacientes que concurren a un hospital universitario. / [Semester direct cost by rheumatoid arthritis in patients in a university hospital]

INTRODUCTION: There are no medical publications with economic analysis of rheumatoid arthritis patients (RA) from Argentina are lacking. The objective of the present study is to determine the direct cost and its breakdown in patients with RA. MATERIAL AND METHODS: Fifty-two patients who met the American College of Rheumatology RA criteria were included. Direct cost was calculated over a follow-up period of 6 months during year 2001. Variables were analyzed with Students T test, Mann-Whitney U Test, c or ANOVA as corresponded. P values < 0.05 were considered significant. RESULTS: The mean monthly home income was $426.6 SD 272. The mean half-yearly direct costs was $677.5 SD 376.2. The components of the direct cost were identified and the mean for medication cost was $606.7 (89

), for lab tests was $45.5 (7

), for medical attention $12.5 (2

) and other costs $2.4. No differences in total cost or in medication cost were found when compared considering age, evolution time of RA or HAQ scores. CONCLUSION: Half-yearly direct cost in RA is excessively high considering the monthly mean income of the patients being analyzed. The cost of medication was the principal component of the direct cost.