HISTORY OF RUSSIAN RHEUMATOLOGY
ORIGINAL INVESTIGATIONS
It is suggested that interleukin (IL)-1β inhibition may promote a reduction in the risk of cardiovascular diseases; however, the mechanism of this impact has not been adequately investigated.
Objective: to evaluate the impact of canakinumab therapy on the structural and functional properties of the vascular bed and the stiffness of the vessel wall.
Patients and methods. An open-labeled prospective study was conducted in 20 patients with chronic tophaceous gout at the V.A. Nasonova Research Institute of Rheumatology. Among the patients, there were 17 (85%) men and 3 (15%) women. All the patents received a single subcutaneous injection of canakinumab 150 mg. Estimation of high-sensitivity C-reactive protein (hs-CRP) and IL-6 levels, 24-hour blood pressure (BP) monitoring, duplex scanning of the carotid arteries (intimamedia thickness (IMT)), and determination of central artery stiffness (aortic pulse wave velocity (APWV), m/sec) were done before and 14 and 120 days after drug administration; the level of hs-CRP was quantitatively measured using a high-sensitivity immunoturbidimetric assay and the concentration of IL-6 was determined by xMAP technology (Human Grp I Cytokine 27-plex panel on a BioPlex-200 analyzer (Bio-Rad, USA). Antihypertensive lipidlowering therapy was not changed during the investigation. Statistical analysis was carried out using a package of applied Statistica 10.0 programs (StatSoft/Inc., USA).
Results. Examination of the common carotid artery indicated that the median IMT that was 0.83 [0.71; 0.94] mm at baseline decreased to 0.74 [0.69; 0.84] mm by the end of the investigation (p = 0.022). The median APWV that was 14.12 [10; 17] m/sec at baseline dropped to 13.1 [11; 14] by the end of the investigation, but statistically insignificantly (p = 0.79). By the end of the investigation, there was a reduction in APWV as related to the baseline level in 13 (65%) patients: 7 of them had not one swollen joint and only 5 patients had a CRP level of > 5 mg/l, which was significantly less frequently than that in patients without positive changes in this index: in 6 (86%) of the 7 patients (p = 0.043). There was a direct correlation of changes in APW with those in serum CRP levels (p = 0.012 and p = 0.047, respectively) after 14 and 120 days and with those in serum IL-6 concentrations following 14 days (p = 0.003). 24-hour BP monitoring showed no significant BP change in the patients after 14 and 120 days after injection. The mean level of total cholesterol and triglycerides remained unchanged.
Conclusion. The IL-6 inhibitor canakinumab can have a positive effect on IMT and arterial stiffness. The effect of the drug on the structural and functional properties of the vascular bed is due to the magnitude of its anti-inflammatory activity
Weber-Christian disease (WCD), or idiopathic panniculitis, refers to rare diseases from a group of systemic connective tissue diseases. To verify the diagnosis of WCD is a difficult task, for there are no precise diagnostic tests for this disease.
Objective: to study the clinical features and additional investigation data of WCD as one of the variants of lobular panniculitis (LP).
Subjects and methods. Nineteen patients (2 men and 17 women) aged 32 to 71 years with WCD were examined. The average disease duration was 65.1±11.3 months.
Results. The medical history data of 12 patients could identify three suspected factors of disease development: surgical intervention (n = 6); supercooling (n=4), and acute respiratory viral infection (n=2). In 10 (53%) patients aged 47–71 years, the Quetelet index was as high as 31.8±7.2 cm/kg, which allowed grade 2 obesity to be diagnosed. According to its clinical manifestations, there were 3 WCD forms: nodular (n=10), plaque (n=6), and infiltrative (n=3). The saucer symptom was present in 74%, including in all cases of the chronic course (p=0.02). The number of affected areas significantly differed in the nodular and plaque forms (p=0.01). ROC analysis showed that the optimal values of sensitivity (80%) and specificity (83%) on visual analog scale (VAS) in patients with these forms corresponded to a separation point of 60 mm, with the prognostic value of a positive result being 0.89 (CI 0.71–1.1; p=0.011). The infiltrative form showed a typical clinical picture (VAS, 83.1±12.5 mm) in 3 patients, one of them was found to have mesenteric panniculitis. The level of C-reactive protein was shown to be correlated with the form of the disease; the former being maximal in infiltrative WCD. The pathomorphological examination of skin and subcutaneous fat biopsy specimens from the nodule of all the patients detected diffuse leukolymphocytic infiltration, single multinucleated cells, necrotic foci, and lipocyte proliferation.
Conclusion. WCD is a clinical variant of LP, which requires an extended diagnostic search.
Osteoarthritis (OA) is a degenerative joint disease that is accompanied by cartilage destruction, synovial membrane inflammatory changes, and subchondral bone remodeling.
Objective: to perform comparative evaluation of the efficiency of knee OA treatment with diacerein, hyaluronic acid, and nonsteroidal antiinflammatory drugs at short- and long-term follow-up.
Patients and methods. An open-label comparative enrolled 192 patients with knee arthritis: 68.5% women and 31.5% men (mean age, 52.7±1.79 years; mean disease duration, 7 years). The patients were divided into three groups matched for gender, age, and disease duration: Group 1 (n=63) took diacerein 100 mg/day; Group 2 (n=65) received intraarticular hyaluronic acid 2 ml thrice at an interval of 7 days; Group 3 (n=64) had diclofenac 75 mg/day. The patients of all the three groups had a similar magnitude of its symptoms and Kellgren grade. Magnetic resonance imaging (MRI) and arthroscopic examination of the knee joint were performed to assess the results of treatment in the patients.
Results. To evaluate the chondroprotective effect of the drugs, the authors used their proposed arthroscopic and MRI criteria (sensitivity, 89.7%; specificity, 93.1%) that allow abnormally changed and normal cartilages to be identified. At months 2 of treatment, all the three drugs ensured a considerable pain intensity reduction that persisted till 12 weeks. The important benefit of diacerein and hyaluronic acid was their aftereffect for further 3 months.
Objective: to estimate a need for conservative rehabilitation treatment in patients with juvenile chronic arthritis (JCA).
Material and methods. Data on the principles and procedures of rehabilitation treatment were analyzed in patients with JCA on the basis of 25- year experience. The need for these packages of measures in 1999, 2008, and 2014 was compared. Standard procedures for joints at different sites were described. According to the degree of joint functions, there were rehabilitation treatment packages: corrective, mobilization, and general health-improving.
Results and discussion. All patients with juvenile arthritis need rehabilitation (physical, psychological, and social). Comparison of the total number of patients who had received rehabilitation treatment in 1999, 2008, and 2014 showed a small trend towards its reduction. This is due to the smaller number of patients with dysfunctions and to the larger number of those without movement disorders who had received adequate treatment in early periods of the disease. The high percentage of patients having limited joint functions needs a mobilization package. Analysis of the data available in the literature and the authors' experience may lead to the conclusion that all patients with JCA need exercise therapy. The latter is a major procedure for physical rehabilitation and should be included in the standards for adjuvant treatment during basic medical therapy. Emphasis is laid on the importance of the early initiation of treatment to prevent incapacitating deformity at early stages of the disease.
CLINICAL OBSERVATIONS
DEBATABLE PROBLEMS OF RHEUMATOLOGY
The paper discusses possible approaches to determining remission in ankylosing spondylitis (AS) and other axial spondyloarthritides (axSpA). At present, there is no single definition of the concept of remission in axSpA and AS, which is due to both the diversity of manifestations of axSpA and a large number of tools to measure disease activity and the nonsimultaneous change in the degree of clinical and laboratory symptoms, signs of acute inflammation, as evidenced by imaging techniques, and signs of progressive structural changes in the locomotor apparatus in the same patient. Clinical, laboratory, magnetic resonance imaging, and radiographic remissions in a patient cannot be in time, which in turn affects the choice of optimal therapy.
The case report demonstrates problems with treatment correction in a patient who has achieved clinical and laboratory remission in the presence of persistent inflammatory signs in the locomotor apparatus, as shown by imaging techniques. Since the guidelines for the follow-up and treatment of patients with nonradiographic axSpA and AS are similar today, the paper considers remission as a general problem for all subtypes of axSpA.
NOVELTY IN RHEUMATOLOGY
REVIEWS
ISSN 2310-158X (Online)