Postprandial Hyperlipidemia: Association with Inflammation and Subclinical Atherosclerosis in Patients with Rheumatoid Arthritis.

OBJECTIVE: To describe postprandial lipidemia in patients with rheumatoid arthritis (RA) and to analyze its association with subclinical atherosclerosis and inflammatory activity. METHODS: Observational study of 80 cases of RA and 80 sex- and age-matched controls. We excluded individuals with dyslipidemia. Postprandial hyperlipidemia (PPHL) was defined as postprandial triglycerides >220 mg/dL and/or postprandial ApoB48 levels >75th percentile (>p75). Plasma lipids, cholesterol, triglycerides, ApoB48, and total ApoB were evaluated at baseline and after a meal. Other variables analyzed included subclinical atherosclerosis (defined as presence of carotid atheromatous plaque), inflammatory activity (disease activity score (DAS28-ESR)), cytokines, apolipoproteins, and physical activity. A multivariate analysis was performed to identify factors associated with PPHL in patients with RA. RESULTS: A total of 75 patients with RA and 67 healthy controls fulfilled the inclusion criteria. PPHL was more frequent in patients with RA than controls (No. (%), 29 (38.70) vs. 15 (22.40); p = 0.036), as was subclinical atherosclerosis (No. (%), 22 (30.10) vs. 10 (14.90); p = 0.032). PPHL in patients with RA was associated with subclinical atherosclerosis (OR (95% CI) 4.69 (1.09-12.11); p = 0.037), TNF-α (OR (95% CI) 2.00 (1.00-3.98); p = 0.048), high-sensitivity C-reactive protein (OR (95% CI) 1.10 (1.01-1.19); p = 0.027), and baseline triglycerides (OR (95% CI) 1.02 (1.00-1.04); p = 0.049). CONCLUSION: PPHL was more frequent in patients with RA than in controls. PPHL in patients with RA was associated with inflammation and subclinical atherosclerosis.

An audit of the variability of diagnosis and management of gout in the rheumatology setting: the gout evaluation and management study.

OBJECTIVE: The objectives of the study were to evaluate the rate of variability in diagnosis and treatment of the patients with gout in the rheumatology setting and to estimate the rate of adjustment to the European League Against Rheumatism recommendations as a key step to improve the quality of care in gout. METHODS: The GEMA (Gout Evaluation and MAnagement) study is a cross-sectional audit in which 803 files of patients with an International Classification of Diseases code of gout were randomly chosen from 41 rheumatology units. The data collected regarded the clinical management of gout. Indicators based on the European League Against Rheumatism recommendations were created, and information on the fulfillment of the recommendations was retrieved. The mean adjustment and 95% confidence interval (CI) were estimated for each recommendation. RESULTS: Patients from whose files information was retrieved were very representative of gout (94% were men, with a mean age of 60 years, 43% obese, 62% hypertensive, more than 25% with tophaceous gout, 61% hyperlipidemic). A diagnosis based on the observation of monosodium urate crystals on the microscope had been made in only 26%; thus, the adjustment to diagnostic recommendations was low, 26.0% (95% CI, 18.9%-33.1%). The adjustment to the recommendations on evaluating comorbidity was 50.6% (95% CI, 46.6%-54.5%). Mean adjustment to recommendations on management, in general, was better, especially those regarding acute flares (100%), and lifestyle changes, with 71.4% (95% CI, 63.7%-79.1%) with treatment using urate-lowering drugs could be improved (mean adjustment, 52.1% [95% CI, 43.1-61.1]). CONCLUSIONS: Overall, implementation of clinical care in gout should be put on further attention to diagnosis, time-consuming evaluation of comorbidities, and long-term control of serum urate levels.

Cumulative inflammatory burden and obesity as determinants of insulin resistance in patients with established rheumatoid arthritis: cross-sectional study.

OBJECTIVES: To describe the prevalence of insulin resistance (IR) in patients with established rheumatoid arthritis (RA) and to analyse the contribution of cumulative inflammatory burden and other factors to its development. DESIGN: Observational cross-sectional study. PARTICIPANTS: Patients with RA and controls matched for age, sex and Body Mass Index. We excluded patients with diabetes. SETTINGS: Patients from an RA inception cohort at Hospital Regional Universitario de Málaga, Spain, were recruited between September 2016 and May 2018. PRIMARY AND SECONDARY OUTCOME MEASURES: IR was evaluated using the homeostasis model assessment for IR and beta-cell function and the quantitative insulin sensitivity check index. Other variables included the cumulative 28-Joint Disease Activity Score (DAS28) with C reactive protein (CRP) body composition and cytokines. Two logistic regression models were constructed to identify factors associated with IR in patients with RA. RESULTS: Eighty-nine patients with RA and 80 controls were included. The prevalence of IR was similar in both cases and controls. Inflammatory activity was controlled appropriately in patients during follow-up (mean DAS28 3.1 (0.8)). The presence of IR in patients with RA was associated with obesity (OR 6.01, 95% CI 1.9 to 8.7), higher cumulative DAS28-CRP values during follow-up (OR 2.8, 95% CI 1.3 to 6.0), and higher interleukin-1ß levels (OR 1.6, 95% CI 1.1 to 2.4). The second model showed that the risk of IR increased by 10% for each kilogram of excess body fat. CONCLUSION: In patients with well-controlled, established RA, IR is associated mainly with poorer control of inflammation from diagnosis and with obesity, specifically total fat mass.

Postprandial Apolipoprotein B48 is Associated with Subclinical Atherosclerosis in Patients with Rheumatoid Arthritis.

OBJECTIVE: To describe postprandial lipemia in patients with rheumatoid arthritis (RA) and to analyze its association with subclinical atherosclerosis measured as carotid intima-media thickness (cIMT). METHODS: We performed an observational study of 40 patients with RA and 40 sex and age-matched controls. Patients with dyslipidemia were excluded. Pathologically increased cIMT was defined as a carotid thickness greater than the 90th percentile (>p90) for age and sex. Fasting and postprandial plasma lipids, cholesterol, triglycerides, apolipoprotein B48 (ApoB48), and total ApoB were evaluated. The other variables included were clinical and laboratory values, Framingham score, and the 28-joint Disease Activity Score (DAS28). Two multivariate models were constructed to identify factors associated with pathologic cIMT in patients with RA. RESULTS: Fasting lipid values were similar in patients with RA and controls, although those of postprandial ApoB48 were higher (median (IQR), 14.4 (10.8-12.1) vs. 12.1 (2.3-9,8); p = 0.042). Pathologic cIMT was recorded in 10 patients with RA (25%) and nine controls (22.5%). In patients with RA, pathologic cIMT was associated with postprandial ApoB48 (OR (95% CI), 1.15 (1.0-1.3)) and total ApoB (OR [95% CI], 1.12 [1.1-1.2]). The second model revealed a mean increase of 0.256 mm for cIMT in patients with elevated anticitrullinated protein antibodies (ACPAs). CONCLUSION: Postprandial ApoB48 levels in patients with RA are higher than in controls. Postprandial ApoB48 and total ApoB levels and markers of severity, such as ACPAs, are associated with pathologic cIMT in patients with RA. Our findings could indicate that these atherogenic particles have a negative effect on the endothelium.

Insulin resistance and levels of adipokines in patients with untreated early rheumatoid arthritis.

The aim of this study is to investigate the presence of insulin resistance (IR) in patients with untreated early rheumatoid arthritis (ERA) and its relationship with adipokines, inflammatory cytokines, and treatment. In this prospective study, we enrolled 46 ERA patients with a disease duration of <1 year, and 45 sex-, age-, race-, and body mass index (BMI)-matched controls. Patients and controls with diabetes or a history of glucocorticoid (GC) or disease-modifying antirheumatic drugs (DMARDs) use were excluded. Patients were assessed at the time of diagnosis (visit 1) and after 6 months of treatment (visit 2). The main outcomes were homeostatic model assessment of IR (HOMA-IR) and ß-cell function (HOMA-ß) and quantitative insulin sensitivity check index (QUICKI). A multivariate regression analysis was performed to analyze IR adjusting according to lipids, body composition, physical activity, nutrition, and inflammatory cytokine and adipokine levels. The baseline HOMA-IR, HOMA-ß, and QUICKI values were similar in both groups. However, patients showed lower levels of physical activity, total cholesterol, and high-density lipoprotein. Moreover, the inflammatory cytokines and resistin concentrations were higher in patients than controls. Multivariate analysis indicated that BMI and baseline rheumatoid factor levels were positively associated with HOMA-IR and HOMA-ß, and negatively with QUICKI. After DMARD treatment, patients showed improvements in inflammatory parameters and lipids whereas IR remained stable. Furthermore, adiponectin and resistin concentrations decreased slightly. Our data suggest that IR is not present in ERA patients either at diagnosis or at 6 months after treatment. However, symptom duration and fat mass appear to be related.

Baseline comorbidities in patients with rheumatoid arthritis who have been prescribed biological therapy: a case control study.

AIM: To determine whether rheumatoid arthritis (RA) patients who have been prescribed biological agents exhibit a different comorbidity burden than RA patients who take disease-modifying antirheumatic drugs (DMARDs) alone, and to understand the association between comorbidity and other variables, as well as the association between comorbidity and multimorbidity. METHODS: This observational case-control study included 114 RA patients treated with biological agents and a control group comprising 163 sex- and age-matched RA patients treated with DMARDs only. Current and previous data regarding the patients' disease activity, comorbidities, and treatments were collected. The data were analysed using bivariate and multivariate regression models. RESULTS: The patients who were prescribed biological agents exhibited poorer disease control, received more DMARDs and steroids, and underwent more total joint arthroplasties compared with the patients in the control group. However, the risk factors for cardiovascular disease and the comorbidity frequency were similar between cases and controls. The most prevalent comorbidities were hypertension, obesity, and respiratory, thyroid, and upper gastrointestinal disorders. The incidence of cardiovascular disease was low, and only 29% of the patients exhibited multimorbidities. A bivariate association of age, late diagnosis, joint replacements and a high score on the health assessment questionnaire score (HAQ) with comorbidity was observed. There were also correlations between the Charlson index and age, joint reconstructive surgery, disease activity (DAS28), and HAQ score. However, when binary logarithmic regression models were applied, only patient age remained significantly associated with comorbidity and multimorbidity [hazard ratio, 1.08; 95% confidence interval, 1.05-1.12; p<0.0005]. CONCLUSION: RA patients taking biological drugs have a comorbidity burden equivalent to those treated with DMARDs alone. Age is the main predictive factor of comorbidity in these patients.

[Annual trends in knee and hip arthroplasty in rheumatoid arthritis 1998-2007]. / Tendencia anual de las artroplastias de rodilla y cadera en artritis reumatoide entre 1998-2007.

OBJECTIVE: To determine the annual number and trend of prostheses implanted in patients with rheumatoid arthritis (RA) at our hospital during the past decade. MATERIALS AND METHODS: Retrospective observational study. Patients were collected through an extensive search of the database of the Clinical Documentation Service between 1998 and 2007. The data was extracted from medical records using a predesigned questionnaire. Statistical analysis of longitudinal prostheses was made by Cochrane's Q test and the Kaplan-Meier method. RESULTS: Sixty-one RA patients were operated on with 78 prostheses as a direct result of their disease at our hospital between 1998 and 2007. Most were women (80%) with positive rheumatoid factor (84%). The mean age was 58 years, and the average time since onset of RA was 13 years. All but one had previously received antirheumatic drugs (88% methotrexate), but only 11% had biological therapy. No changes were observed in the number of arthroplasties as a whole over a decade, although there was a trend towards reduction in the number of patients that required a knee replacement for the first time (Cochrane Q, P=0.05). CONCLUSION: We observed no significant changes in trends in the number of new joint replacement procedures as a whole in the past decade at our hospital, although the number of patients that required knee replacement for the first time as a direct result of their underlying disease seems to have declined in the last decade.

Effectiveness, predictive response factors, and safety of anti-tumor necrosis factor (TNF) therapies in anti-TNF-naive rheumatoid arthritis.

OBJECTIVE: To evaluate the effectiveness and safety of anti-tumor necrosis factor (anti-TNF) therapies in rheumatoid arthritis (RA), and to identify the factors involved in this response. METHODS: Dynamic prospective cohort study of patients with RA treated with anti-TNF under clinical practice conditions. Effectiveness was evaluated using Disease Activity Score (DAS) 28, European League Against Rheumatism (EULAR) response, Health Assessment Questionnaire (HAQ), and time to treatment failure. Prior adherence was evaluated retrospectively and safety was evaluated by adverse events (AE). The analysis was restricted to anti-TNF-naive patients. RESULTS: The study included 161 patients treated for RA during 6 years (60 infliximab, 79 etanercept, and 22 adalimumab). At 6 months, 15% reached a good EULAR response and 38% a moderate response. A mean decrease of -1.5 (p < 0.0001) was observed in the DAS28 and of -0.34 in the HAQ (p < 0.0001); however, women showed poorer progress in terms of DAS and HAQ. In the first year, 64.3% did not experience treatment failure and this figure was 50.5% after 2 years. In one-third, glucocorticoids were withdrawn and in the remainder the dose was reduced by 50%. Adherence to treatment, selection of etanercept, and intensification of infliximab were associated with a lower probability of premature failure in the multivariate model. AE were similar to other those in studies and no outstanding differences in safety were found between the 3 anti-TNF therapies. CONCLUSIONS: Anti-TNF treatments are effective and safe, reducing the activity of the disease, disability, and the need for corticosteroids. Patients who displayed good adherence prior to the anti-TNF treatment and were treated with etanercept or with increasing doses of infliximab had the best chance of displaying a response.

Baseline comorbidities in patients with rheumatoid arthritis who have been prescribed biological therapy: a case control study

Objetivo. Determinar si los pacientes con artritis reumatoide (AR) a los que se les prescribe terapia biológica tienen comorbilidad diferente a los pacientes con AR a los que se les prescribe solo fármacos antirreumáticos modificadores de la enfermedad (FAME). Entender la asociación de comorbilidad con otras variables y con multimorbilidad. Métodos. Estudio observacional de casos y controles, incluyó 114 pacientes con AR a los que se les prescribió terapia biológica, y un grupo control de 163 pacientes emparejados por sexo y edad a los que solo se les había prescrito FAME. Se recogieron datos previos y actuales sobre actividad de enfermedad, comorbilidad y tratamientos. Se realizó análisis de regresión bivariante y multivariante. Resultados. Los pacientes a los que se les prescribió terapia biológica tenían: peor control de la enfermedad, recibieron más FAME y glucocorticoides y se habían sometido a más artroplastias en comparación con el grupo control. Sin embargo, los factores de riesgo cardiovascular y la frecuencia de comorbilidad fueron similares entre casos y controles. Las comorbilidades más frecuentes fueron: hipercolesterolemia (33%), hipertensión (27%), obesidad (26%), y trastornos respiratorios (16%), tiroideos(13%) y gastrointestinales (10%). La incidencia de enfermedad cardiovascular es baja (2%). Solo el 29% de los pacientes tenían multimorbilidad. Se observó asociación bivariante entre edad, diagnóstico tardío, reemplazos articulares y HAQ, con comorbilidad. También se observaron correlaciones entre índice de Charlson y edad, la cirugía reconstructiva, actividad de la enfermedad y HAQ. Cuando se aplican los modelos de regresión Log binario, solo la edad se mantuvo asociada significativamente con comorbilidad y multimorbilidad (hazard ratio 1,8; intervalo de confianza al 95% 1,05-1,12; p<0,0005). Conclusión. Los pacientes con AR con terapia biológica tienen comorbilidad equivalente a los tratados solo con FAME. La edad es el principal factor predictivo de comorbilidad en estos pacientes (AU)

Aim: To determine whether rheumatoid arthritis (RA) patients who have been prescribed biological agents exhibit a different comorbidity burden than RA patients who take disease-modifying antirheumatic drugs (DMARDs) alone, and to understand the association between comorbidity and other variables, as well as the association between comorbidity and multimorbidity. Methods: This observational case–control study included 114 RA patients treated with biological agents and a control group comprising 163 sex- and age-matched RA patients treated with DMARDs only. Current and previous data regarding the patients’ disease activity, comorbidities, and treatments were collected. The data were analysed using bivariate and multivariate regression models. Results: The patients who were prescribed biological agents exhibited poorer disease control, received more DMARDs and steroids, and underwent more total joint arthroplasties compared with the patients in the control group. However, the risk factors for cardiovascular disease and the comorbidity frequency were similar between cases and controls. The most prevalent comorbidities were hypertension, obesity, and respiratory, thyroid, and upper gastrointestinal disorders. The incidence of cardiovascular disease was low, and only 29% of the patients exhibited multimorbidities. A bivariate association of age, late diagnosis, joint replacements and a high score on the health assessment questionnaire score (HAQ) with comorbidity was observed. There were also correlations between the Charlson index and age, joint reconstructive surgery, disease activity (DAS28), and HAQ score. However, when binary logarithmic regression models were applied, only patient age remained significantly associated with comorbidity and multimorbidity [hazard ratio, 1.08; 95% confidence interval, 1.05–1.12; p < 0.0005]. Conclusion: RA patients taking biological drugs have a comorbidity burden equivalent to those treated with DMARDs alone. Age is the main predictive factor of comorbidity in these patients (AU)

Tendencia anual de las artroplastias de rodilla y cadera en artritis reumatoide entre 1998-2007 / Annual trends in knee and hip arthroplasty in rheumatoid arthritis 1998-2007

Objetivo. Conocer el número anual y la tendencia de las prótesis implantadas en nuestro hospital a los pacientes con artritis reumatoide (AR) durante la última década. Material y métodos. Estudio observacional retrospectivo. Los pacientes fueron localizados mediante búsqueda exhaustiva en la base de datos del servicio de documentación clínica entre 1998 y 2007. Los datos se extrajeron de las historias clínicas siguiendo un cuestionario prediseñado. El análisis estadístico longitudinal de las prótesis colocadas se efectuó mediante la Q de Cochrane y las curvas de Kaplan-Meier. Resultado. Sesenta y un pacientes con AR fueron intervenidos con 78 prótesis como consecuencia directa de su enfermedad en nuestro hospital entre 1998 y 2007. La mayoría eran mujeres (80%) con factor reumatoide positivo (84%). La media de edad fue de 58 años y el tiempo de evolución medio de la AR fue de 13 años. Todos excepto uno habían recibido previamente fármacos antirreumáticos (88% metotrexato), pero sólo el 11% había accedido a una terapia biológica. No se observaron cambios en el número de artroplastias a lo largo de toda la década, aunque sí hubo una tendencia a la reducción en el número de pacientes que precisaron por primera vez una prótesis de rodilla (Q Cochrane; p=0,05). Conclusión. No hemos observado cambios significativos en la colocación de prótesis articulares en su conjunto en la última década en nuestro hospital, aunque podría estar produciéndose un descenso del número de pacientes que acceden por primera vez a una prótesis de rodilla (AU)

Objective. To determine the annual number and trend of prostheses implanted in patients with rheumatoid arthritis (RA) at our hospital during the past decade. Materials and methods. Retrospective observational study. Patients were collected through an extensive search of the database of the Clinical Documentation Service between 1998 and 2007. The data was extracted from medical records using a predesigned questionnaire. Statistical analysis of longitudinal prostheses was made by Cochrane's Q test and the Kaplan-Meier method. Results. Sixty-one RA patients were operated on with 78 prostheses as a direct result of their disease at our hospital between 1998 and 2007. Most were women (80%) with positive rheumatoid factor (84%). The mean age was 58 years, and the average time since onset of RA was 13 years. All but one had previously received antirheumatic drugs (88% methotrexate), but only 11% had biological therapy. No changes were observed in the number of arthroplasties as a whole over a decade, although there was a trend towards reduction in the number of patients that required a knee replacement for the first time (Cochrane Q, P=0.05). Conclusion. We observed no significant changes in trends in the number of new joint replacement procedures as a whole in the past decade at our hospital, although the number of patients that required knee replacement for the first time as a direct result of their underlying disease seems to have declined in the last decade (AU)