BackgroundIt is known that genetic and environmental factors play a role in the pathogenesis of spondyloarthritis (SpA). [1] It can be thought that spouses living in the same house are exposed to similar environmental factors.ObjectivesThis study aimed to investigate whether common living space increases the frequency of SpA development in unrelated spouses of SpA patients.MethodsBetween November 2021 and June 2022, 680 SpA patients who applied to the Hacettepe University rheumatology outpatient clinic were included. Patients were divided into ankylosing spondylitis (AS), non-radiographic SpA, and peripheral SpA. The patients were asked whether their spouses had SpA, and if they had SpA diagnosis, they were called to the outpatient clinic, and their diagnosis was confirmed. The family history of the patients and their use of bDMARDs were also noted. It was also checked whether the patients whose spouses had SpA findings fulfilled the AS criteria.Results680 SpA patients were evaluated. There were 582(85.6%) AS, 72(10.6%) nr AxSpA, and 26 only peripheral SpA (3.8%). 49.4% of the patients were male, and the mean age was 45.6 (10.4). The mean follow-up period of the patients was 10.6 (7.9) years. Of all patients, 468 (55.1%) were using a bDMARD at the time of evaluation. 12 SpA patients stated that their spouses had SpA. In the review of these patients, it was found that four patients did not have SpA, and one of them had PsA. Spouses of patients with nr AxSpA and peripheral SpA did not have AS/SpA AS was detected in the spouses of 7 patients. The incidence of AS in the entire SpA patient group was calculated as 7/695 (1.01% (0.4-2.1)). The incidence of AS in spouses of AS patients are 7/582 (1.20% (0.5-2.5)) calculated. 2 of 7 wives were cousins’ children. The incidence of AS in unrelated spouses of AS patients are 5/580 (0.86% (0.3-2)). Only one of the spouses with AS knew her spouse’s diagnosis at the time of marriage, while the other six were diagnosed after marriage. The median time for these patients to be diagnosed after marriage is 22 (7-32) years.ConclusionIn the Turkish population, the frequency of AS was 0.49%, and the frequency of SpA was 1.05%. [2] The incidence of AS in the spouses of SpA patients has increased approximately two times compared to the average Turkish population. A 2.4-fold increased risk was found in AS patients. This situation may be related to environmental factors that play a role in the pathogenesis of SpA disease. However, the fact that half of the patients were using bDMARDs suggests that they were analyzed in the group with the potential for more severe disease. The results require confirmation in more extensive studies.References[1]Hwang, M.C., L. Ridley, and J.D. Reveille,Ankylosing spondylitis risk factors: a systematic literature review.Clinical Rheumatology, 2021.40(8): p. 3079-3093.[2]Onen, F., et al.,Prevalence of ankylosing spondylitis and related spondyloarthritides in an urban area of Izmir, Turkey.The Journal of rheumatology, 2008.35(2): p. 305-309.Acknowledgements:NIL.Disclosure of InterestsNone Declared.
BackgroundData regarding the prevalence and especially incidence of osteoporosis in Spondylarthritis (SPA) is scarce and very divergent among studies from different patient populations (1).ObjectivesIn this study, we aimed to compare demographic, disease and laboratory characteristics of SpA patients regarding their bone mineral densitometry (BMD) categories and find out incidence of osteoporosis in the follow-up BMD of patients who were not found to have osteoporosis at baseline.MethodsBetween 2010-2021, patients with a SPA diagnosis in the HUR-BIO database were searched. HUR-BIO (Hacettepe University Rheumatology Biologic Registry) is a single center biological disease modifying anti-rheumatic drug (DMARD) registry since 2010. Patients with BMD measurement were included in the study. Follow-up BMD scores were also documented. The patients were divided into 3 groups as normal, osteopenia and osteoporosis in accordance with the WHO criteria (2). Demographic characteristics, comorbidities, laboratory data and drugs in each group were documented.Results3245 patients were reviewed. BMD was measured at least once in 118 patients out of 3245 (3.6%) patients. When the groups classified, 34 patients (28.8%) were included in the normal, 49 (41.5%) osteopenia and 35 (29.7%) osteoporosis groups. Patients with normal BMD was younger than both groups. Diabetes and hypertension were more prevalent in patients with osteopenia. The BMI was significantly lower in the osteoporosis group. 25 patients with normal and osteopenia in baseline BMD measurement had at least 1 follow-up BMD measurement. During the total follow-up of 91 patient-years, 3 patients had osteoporosis, revealing a the incidence of 3.3% in 100 patient-years.ConclusionIn our study, the incidence of OP development in SPA patients was found to be 3.3%. Frequency of osteoporosis was 29.7% among SpA patients with BMD measurement (118/3245; 3.6%), however; only 40% of them had appropriate treatment. Osteoporosis seems as an overlooked and undertreated comorbidity of SpA.Table 1.Comparison of spondyloarthritis patients according to BMD scores (normal, osteopenia and osteoporosis) according to baseline BMD assessmentNORMAL Number, (%)OSTEOPENIA Number, (%)OSTEOPOROSIS Number, (%)P VALUENumber of Patients34 (28.8)49 (41.5)35(29.7)Age47,5 (27-70)63 (45-79)58 (20-75)0.00*Gender (Female)24 (70.6)34 (69.4)23 (65.7)Diabetes Mellitus3 (8.8)14 (29.2)1 (2.9)0.00*Hypertension11 (32.4)28 (58.3)5 (14.3)0.00*Chronic Renal Failure2 (6.9)1 (2.7)1 (5.3)0.81Chronic Ostructive Pulmonary Disease4 (13.8)4 (10.8)1 (5.3)0.30Coronary Artery Disease0 (0)5 (12.5)3 (15)0.27Malignancy1 (3.6)1 (2.9)1 (4.2)1.0Smoking21 (61.8)23 (47.9)21 (63.6)0.379 (26.5)13 (27.1)5 (15.2)4 (11.8)12 (25)7 (21.2)Calcium mg/dl9.4 (8.2-10.2)9.5 (8.7-10.4)9.7 (8.1-10.4)0.49Phosphorus mg/dl3.5 (3-4.4)3.4 (2.6-5)3.8 (2.9-4.9)0.25Vitamin D ng/ml16 (7.4-64.4)21.2 (5-69.6)15.8 (5.8-49.1)0.66ALP IU/ml89.5 (54-137)89.5(53-169)80 (50-239)0.43Albumin g/dl4.2 (1.7-4.7)4.2 (3.3-8.4)4.2 (2-4.8)0.43TSH mU/ml1.5 (0.8-4.1)2.3 (0.1-9.7)2 (0.7-3.3)0.71Body Mass Index (BMI) kg/m229 (17-41.2)28.3 (20-44.6)25.1(15.8-43.2)0,06*Steroids4 (11.8)8 (16.3)2 (5.7)0.33Anti-TNF25 (73.5)35 (71.4)26 (74.3)0,95D Vitamin7 (20.6)14 (28.6)10 (28.6)0.67Calcium4 (11.8)5 (10.2)6 (17.1)0.63Bisphosphonate0 (0)4 (8.2)14 (40)0,00*Data was represented as median (minimum-maximum) or n(%)References[1]Hu LY, Chen PM, Shen CC, et all. Should clinicians pay more attention to the potential underdiagnosis of osteoporosis in patients with ankylosing spondylitis? A national population-based study in Taiwan. PoleS one 2019:6;14[2]Kanis JA on behalf of the World Health Organization Scientific Group (2007) Assessment of osteoporosis at the primary health-care level. Technical Report. World Health Organization Collaborating Centre for Metabolic Bone Diseases, University of Sheffield, UK. 2007: Printed by the University of Sheffield.Disclosure of InterestsNone declared
BackgroundRheumatic disesases may involve multiple systems and chronic kidney disease (CKD) can be seen during the course of diseases. Accompanying CKD affects the the choice of treatments in patients with rheumatic disease. There is limited data on the use of biological DMARDs in rheumatic patients with chronic kidney disease.ObjectivesTo determine the preferred first and second bDMARDs in patients in the CKD in the bDMARD cohort.MethodsThe Hacettepe University biological database (HUR-BIO), was established in 2005. A total of 2160 RA patients, 3744 SPA patients, were registered in HUR-BIO until November 2021. The CKD was confirmed and classified according to 2012 Kidney Disease: Improving Global Outcomes (KDIGO) guidelines. . Patients were evaluated for the presence of CKB before the initiation of bDmard and during follow-up under bDMARDs. Age and sex matched RA patients without CKD were selected for the control group.Results142/5904 (2.4%) patients have CKD. 102(%71.8) patients had CKD prior to initiation of bDMARD and 40 (28.1%) patients had developed during follow-up. The median time to CKD development after starting bDMARD was 4.13 years(±4.05). Of the patients with CKD, 98 (69.0%) had RA and 44 (31.0%) had SpA. RA patients followed for CKD were older than SpA (66.0 (±11.1) vs 59.1 (±13.0) years, p=0.001), female gender was more common (73.5% vs 36.4%, p<0.001), disease duration was similar (19.3 (±13.8) vs 17.1 (±10.5) years, p=0.40). The first bDMARD choices of patients with and without CKD in RA and SpA patients were shown in Table 1. There was no difference between the SPA patients with or without CKD regarding TNF-i preferences. In patients with rheumatoid arthritis there was no difference in terms of TNFi and non-TNF-i preferences, but tocilizumab was more prefered in CKD group.Table 1.Relationship between remission according to bDMARD and CKDRheumatoid arthritispSpondyloarthritispw CKD n=98wo CKD n=91w CKD n=44(%)wo CKD n=80(%)p<0,05Etanercept, n(%)34 (34.6)30 (33.0)0.4617 (38.6)22 (27.5)P=0.14Adalimumab, n(%)17(17.3)17 (18.7)0,4810 (22.7)22 (27.5)P=0.36Infliximab,n(%)3 (3)8 (8.8)0.8514(31.8)32 (40.0)p=0.24Golimumab, n(%)4 (4)3 (3.3)0,541 (2.2)3 (3.8)p=0.55Certolizumab, n(%)0 (0)3 (3.3)0,111 (2.2)1 (1.3)p=0.58Anti-TNF therapy, n(%)58 (59.2)61 (67.0)0,6143800.352Non-TNF biologics, n(%)40 (40,8)30 (33.0)0,13100.355Rituximab, n(%)14 (14.3)12 (13.2)0,57Abatacept, n(%)14(14.3)12 (13.2)0,49Tocilizumab, n(%)6 (6.1)10.0411(2.2)p=0.35Jak-kinase inhibitors, n(%)6(6.1)5 (5.5)0.55ConclusionIn our biologic cohort, 2% of patients with RA and SpA had accompanying CKD. In one-third of the patients with CKD, it was developed during the follow-up after bDMARDs. In patients with RA, there was no difference in terms of TNFi and non-TNF-i preferences. It should be kept in mind that CKD may develop during the follow-up of patients using bDMARDs.References[1]Ye W, Zhuang J, Yu Yet all Gender and chronic kidney disease in ankylosing spondylitis: a single-center retrospectively study. BMC Nephrol. 2019 Dec 9;20[2]Chebotareva NV, Guliaev SVet al. [Chronic kidney disease in rheumatoid arthritis patients: prevalence, risks factors, histopathological variants]. Ter Arkh. 2019 May 15;91(5)Disclosure of InterestsNone declared
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