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Background. EULAR experts include osteoscintigraphy of joints in the list of promising methods for the diagnosis of joint diseases. However, the method remains little used in rheumatology in our country.Aim of the study – to develop an algorithm for differential diagnosis for the most common arthropathies based on quantitative osteoscintigraphy.Materials and methods. 3 hours after the injection of pyrophosphate labeled with Tc-99m, scintigraphy of skeletal bones was performed according to the “whole body” program. The joint/adjacent bone uptake ratio was calculated. The CHAID algorithm was used for classification tree constructing.Results. The study included 266 patients aged 46.6±14.3 years, 134 men (50.4%). Axial spondyloarthritis (including ankylosing spondylitis) was diagnosed in 40 patients, peripheral spondyloarthritis (including reactive arthritis) – in 87, rheumatoid arthritis– in 45, osteoarthritis – in 68, psoriatic arthritis – in 26 people. A total of 2279 joints were included in the analysis. A classification tree algorithm for differential diagnosis of arthropathies was constructed. Key indicators for identifying subgroups in the algorithm were the intensity of radiopharmaceutical uptake in the wrist, knee and hip joints. The significance level of differences between the resulting groups at all points of the algorithm branching, taking into account the Bonferroni adjustment, was p=0.001 or less. In the training sample, 51.5% of the observations were correctly classified. According to results of the cross-validation, the expected rate of correct classifications in the actual application of the algorithm is 38.0%.Conclusions. An algorithm for differential diagnosis of the most common inflammatory diseases of the joints has been developed. It allows the use of quantitative osteoscintigraphy data in the diagnosis of arthritis.

Objective: to analyze the results of tofacitinib (TOFA) therapy in real clinical practice according to the All-Russian Arthritis Registry (OREL). Subjects and methods. The OREL Registry included 347 patients (286 (82%) women and 61 (18%) men) with rheumatoid arthritis (RA) who initiated TOFA therapy. The male:female ratio was 1:4.7. The patients’ median age at onset of the disease was 42 years; its duration was 8 years. Most of the patients included in the registry had extended- (n=171 (52%)) or late- (n=148 (45%)) stage of RA. Results and discussion. Prior to initiation of TOFA therapy, RA activity according to DAS28 was high and moderate in 91 (64.5%) and 40 (28.4%) patients, respectively; the median DAS28 value was 5.5 [4.6; 6.2]; SDAI – 30.5 [21.4; 42.9], and CDAI – 28.2 [20.0; 37.1]. The use of TOFA was accompanied by significant decrease of disease activity. After 12 weeks, high RA activity was persistent in 32 (22.7%) patients; the number of patients with moderate activity increased to 77 (54.6%), that of those with low activity rose to 15 (10.6%); remission was observed in 17 (12.1%) patients. 216 (62.6%) and 76 (22%) patients received TOFA as first- and second-line therapy, respectively. TOFA was most frequently prescribed when tumor necrosis factor-á inhibitors (19.6%), rituximab (7.8%), tocilizumab (4.3%), and abatacept (5.2%) were insufficiently effective or poorly tolerated. Conclusion. The results of using TOFA in real clinical practice may suggest that the drug has high efficacy in patients with RA. TOFA can be used at a dose of 5 or 10 mg twice daily as both alone and in combination with disease-modifying anti-rheumatic drugs. TOFA showed similar efficacy in patients who had earlier taken biological agents and in those who had not.

Authors report new recommendations of All-Russian Public Organization «Association of Rheumatologists of Russia» (ARR) on treatment of rheumatoid arthritis (RA), which adapts contemporary concept accepted in the respective field of pharmacotherapy known as «Treat to Target». According to it, the main objective of RA pharmacotherapyis a remission (or low disease activity). To achieve it, disease modifying anti-rheumatic drugs (DMARD) should be administered to all RA patients as early as possible, with efficacy monitoring and therapy correction according to the disease activity. Special attention has been paid to the use of methotrexate (MTX) as «the gold standard» of RA pharmacotherapy and the key component of «Treat to Target» strategy. Early MTX administration (including subcutaneous injections) should become an obligatory component of RA treatment at all stages of the disease. If MTX is not efficient or not well tolerated (including subcutaneous form of the drug) as monotherapy or combined with conventional DMARD, biological agents should be used. Those include TNFα inhibitors, antagonist of interleukin-6 receptor (Tocilizumab), anti-B-cell drugs Rituximab) and agents blocking T-cell activation (Abatacept). Tofacitinib therapy (JAK inhibitor) is indicated in patients who are resistant to conventional DMARDs and biologics. All biologics and Tofacitinib are more effective in combination with MTX (or other DMARD).

Authors report new recommendations of All-Russian Public Organization «Association of Rheumatologists of Russia» (ARR) on treatment of rheumatoid arthritis (RA), which adapts contemporary concept accepted in the respective field of pharmacotherapy known as «Treat to Target». According to it, the main objective of RA pharmacotherapy is a remission (or low disease activity). To achieve it, disease modifying anti-rheumatic drugs (DMARD) should be administered to all RA patients as early as possible, with efficacy monitoring and therapy correction according to the disease activity. Special attention has been paid to the use of methotrexate (MTX) as «the gold standard» of RA pharmacotherapy and the key component of «Treat to Target» strategy. Early MTX administration (including subcutaneous injections) should become an obligatory component of RA treatment at all stages of the disease. If MTX is not efficient or not well tolerated (including subcutaneous form of the drug) as monotherapy or combined with conventional DMARD, biological agents should be used. Those include TNFα inhibitors, antagonist of interleukin-6 receptor (Tocilizumab), anti-B-cell drugs (Rituximab) and agents blocking T-cell activation (Abatacept). Tofacitinib therapy (JAK inhibitor) is indicated in patients who are resistant to conventional DMARDs and biologics. All biologics and Tofacitinib are more effective in combination with MTX (or other DMARD).

Diagnosis of acute rheumatic fever.

The case of a giant-cell arteritis is presented. First clinical signs of the disease were fewer and development of infarction in the basin of the left vertebral artery. Magnetic resonance angiography showed its prolonged diminution. Laboratory results were remarkable for the high rate of erythrocyte sedimentation and the increase of C-reactive protein (CRP) concentration. Physical examination revealed acrotism in temporal arteries. Diagnosis was proven by biopsy results which included giant multinucleate cells. Authors discuss problems of diagnosis of the disease, the role of radiological methods (angio-ultrasonography, magnetic resonance and computed tomography aided angiography, positron-emission tomography) and the necessity to pay particular attention to the elderly patients with high rate of erythrocyte sedimentation and the increased CRP concentration.

Authors report new recommendations of All-Russian Public Organization «Association of Rheumatologists of Russia» (ARR) on treatment of rheumatoid arthritis (RA), which adapts contemporary concept accepted in the respective field of pharmacotherapy known as «Treat to Target». According to it, the main objective of RA pharmacotherapy is a remission (or low disease activity). To achieve it, disease modifying anti-rheumatic drugs (DMARD) should be administered to all RA patients as early as possible, with efficacy monitoring and therapy correction according to the disease activity. Special attention has been paid to the use of methotrexate (MTX) as«the gold standard» of RA pharmacotherapy and the key component of «Treat to Target» strategy. Early MTX administration (including subcutaneous injections) should become an obligatory component of RA treatment at all stages of the disease. If MTX is not efficient or not well tolerated (including subcutaneous form of the drug) as monotherapy or combined with conventional DMARD, biological agents should be used. Those include TNFα inhibitors, antagonist of interleukin-6 receptor (Tocilizumab), anti-B-cell drugs (Rituximab) and agents blocking T-cell activation (Abatacept). Tofacitinib therapy (JAK inhibitor) is indicated in patients who are resistant to conventional DMARDs and biologics. All biologics and Tofacitinib are more effective in combination with MTX (or other DMARD).

Certolizumab pegol (CZP) is a new drug from the group of tumor necrosis factor a inhibitors. The efficacy and safety CZP in the treatment of rheumatoid arthritis (RA) have been studied in the international 52-week RAPID-1 and 24-week RAPID-2 clinical trials that studied the use of CZP in combination with methotrexate (MTX) in patients with active RA unresponsive to MTX. The study populations of the RAPID 1 and RAPID 2 trials constituted the major portion of Russian patients (11.8 and 18.4%, respectively), including that in the prolonged open-labeled phases. The results of using CZP in Russian patients in the RAPID trials showed that they displayed a highly stable response to treatment and a rapidly developing clinical effect, that a therapy response could be predicted in the first 12 weeks, and that the incidence of local postinjection reactions was low.