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1.
Int J Obes (Lond) ; 34(2): 295-301, 2010 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-19859075

RESUMEN

OBJECTIVE: To assess whether physical activity, diet or inflammation is a more important determinant of body mass index (BMI) and body fat (BF) in patients with rheumatoid arthritis (RA). METHODS: A total of 150 RA patients (102 female) were assessed for BMI and BF. Their habitual physical activity was assessed with the international physical activity questionnaire (IPAQ) and their energy intake with a 3-day food diary. Pro-inflammatory cytokines (interleukins, IL-1 and IL-6, and tumor necrosis factor-alpha), erythrocyte sedimentation rate, C-reactive protein, disease activity score-28 and physical function (Health Assessment Questionnaire-HAQ) were also measured. RESULTS: BMI correlated inversely with IPAQ (r=-0.511, P=0.000) and positively with energy intake (r=0.331, P=0.016) and HAQ (r=0.133, P=0.042). BF correlated inversely with IPAQ (r=-0.575, P=0.000) and positively with HAQ (r=0.201, P=0.037). Normal weight patients were more physically active compared with those who were either overweight (P=0.006) or obese (P=0.000). Underweight patients consumed significantly fewer calories compared with other patients (P<0.05 in all cases). Cytokines or HAQ did not differ between weight groups. IPAQ was the sole predictor of obesity, whereas energy intake was the sole predictor of underweight. CONCLUSIONS: Inflammation does not seem to influence BMI and BF in RA. As in the general population, high levels of habitual physical activity associate with low BMI and BF in RA. Energy intake is a major determinant of being underweight in those who consume fewer calories. Further research is needed to investigate the suitability of exercise and diet modalities, and their effects on the body composition of RA patients.


Asunto(s)
Artritis Reumatoide/complicaciones , Peso Corporal , Obesidad/etiología , Artritis Reumatoide/metabolismo , Sedimentación Sanguínea , Composición Corporal , Índice de Masa Corporal , Proteína C-Reactiva/metabolismo , Estudios Transversales , Ingestión de Energía/fisiología , Metabolismo Energético/fisiología , Femenino , Humanos , Inflamación/metabolismo , Interleucina-1/sangre , Interleucina-6/sangre , Estilo de Vida , Masculino , Persona de Mediana Edad , Actividad Motora , Obesidad/metabolismo , Encuestas y Cuestionarios , Factor de Necrosis Tumoral alfa/sangre
2.
Ann Rheum Dis ; 69(3): 517-21, 2010 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-19279016

RESUMEN

OBJECTIVES: The present study aimed to evaluate the prevalence and associations of renal dysfunction in patients with rheumatoid arthritis (RA). It specifically addressed the hypotheses that renal dysfunction in these patients may associate with the presence of insulin resistance, dyslipidaemia, uric acid levels and/or current levels of systemic inflammation. METHODS: Renal function was assessed by estimated glomerular filtration rate (GFR) using the modification of diet in renal disease equation in 400 consecutive RA patients for this cross-sectional, single-centre study. Risk factors for renal dysfunction were recorded/measured in all participants. Correlations between GFR and other variables were analysed by Pearson or Spearman test as appropriate. Linear regression was used to test the independence of the associations between GFR and other variables. RESULTS: In this RA patient cohort, 67.75% of patients had a reduced GFR of less than 90 ml/minute per 1.73 m(2) and 12.75% had a GFR of less than 60 ml/minute per 1.73 m(2). Multivariable analysis revealed significant associations between GFR and age (beta = -0.370, p<0.001), female sex (beta = -0.181, p=0.002), total cholesterol (beta = -0.112, p=0.022), serum uric acid (SUA) (beta = -0.425, p<0.001) and the presence of extra-articular disease, apart from sicca and/or nodules (beta = -0.084, p=0.040). CONCLUSIONS: Renal dysfunction in RA is quite common and associates with classic cardiovascular risk factors such as advanced age and dyslipidaemia, levels of SUA and the presence of extra-articular disease. Renal dysfunction was not related to other RA-related factors including disease activity and duration, disability and past or present use of nephrotoxic medications.


Asunto(s)
Artritis Reumatoide/complicaciones , Enfermedades Cardiovasculares/complicaciones , Enfermedades Renales/complicaciones , Artritis Reumatoide/epidemiología , Artritis Reumatoide/metabolismo , Biomarcadores/sangre , Enfermedades Cardiovasculares/epidemiología , Enfermedades Cardiovasculares/metabolismo , Dislipidemias/metabolismo , Métodos Epidemiológicos , Femenino , Tasa de Filtración Glomerular/fisiología , Humanos , Resistencia a la Insulina/fisiología , Enfermedades Renales/epidemiología , Enfermedades Renales/metabolismo , Masculino , Persona de Mediana Edad , Ácido Úrico/sangre
3.
Ann Rheum Dis ; 68(2): 242-5, 2009 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-18677010

RESUMEN

OBJECTIVES: To assess the association of body mass index (BMI) with modifiable cardiovascular disease (CVD) risk factors in patients with rheumatoid arthritis (RA). METHODS: BMI, disease activity, selected CVD risk factors and CVD medication were assessed in 378 (276 women) patients with RA. Patients exceeding accepted thresholds in >or=3 CVD risk factors were classified as having the metabolic syndrome (MetS). RESULTS: BMI independently associated with hypertension (OR = 1.28 (95% CI = 1.22 to 1.34); p = 0.001), high-density lipoprotein (OR = 1.10 (95% CI = 1.06 to 1.15); p = 0.025), insulin resistance (OR = 1.13 (95% CI = 1.08 to 1.18); p = 0.000) and MetS (OR = 1.15 (95% CI = 1.08 to 1.21); p = 0.000). In multivariable analyses, BMI had the strongest associations with CVD risk factors (F(1-354) = 8.663, p = 0.000), and this was followed by lipid-lowering treatment (F(1-354) = 7.651, p = 0.000), age (F(1-354) = 7.541, p = 0.000), antihypertensive treatment (F(1-354) = 4.997, p = 0.000) and gender (F(1-354) = 4.707, p = 0.000). Prevalence of hypertension (p = 0.004), insulin resistance (p = 0.005) and MetS (p = 0.000) was significantly different between patients with RA who were normal, overweight and obese, and BMI differed significantly according to the number of risk factors present (p = 0.000). CONCLUSIONS: Increasing BMI associates with increased CVD risk independently of many confounders. RA-specific BMI cut-off points better identify patients with RA at increased CVD risk. Weight-loss regimens should be developed and applied in order to reduce CVD in patients with RA.


Asunto(s)
Artritis Reumatoide/complicaciones , Enfermedades Cardiovasculares/etiología , Obesidad/complicaciones , Anciano , Antropometría/métodos , Artritis Reumatoide/fisiopatología , Índice de Masa Corporal , Enfermedades Cardiovasculares/fisiopatología , Femenino , Humanos , Hipertensión/etiología , Resistencia a la Insulina , Lipoproteínas HDL/sangre , Masculino , Síndrome Metabólico/etiología , Síndrome Metabólico/fisiopatología , Persona de Mediana Edad , Obesidad/fisiopatología , Factores de Riesgo
4.
Rheumatology (Oxford) ; 48(2): 113-8, 2009 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-19106168

RESUMEN

OBJECTIVES: Part of the deleterious effects of systemic inflammation on the cardiovascular system of patients with RA may be exerted via increased propensity to hypertension. IL-6 and TGF-beta1 are important regulators of the inflammatory response. In some, but not all, studies, IL6 -174G/C (rs1800795) and TGFB1 869T/C (rs1982073) gene polymorphisms have been associated with hypertension in the general population. The present study addressed their potential association with hypertension in RA patients. METHODS: TGFB1 869T/C and IL6 -174G/C were identified in 400 RA patients and 422 local, non-RA controls using real-time PCR and melting curve analysis. Binary logistic and linear regression models were used to identify the independence of the effects of the polymorphisms on hypertension. RESULTS: Genotypic and allelic frequencies of the two polymorphisms were similar in RA and controls. Within the RA group, there was no significant association between IL6 -174G/C and hypertension, but TGF 869T-allele carriers had significantly increased prevalence of hypertension compared with CC homozygotes (70.2 vs 55.2%; P = 0.023). This association remained significant after adjustment for other hypertension risk factors and medication (odds ratio = 1.96; 95% CI 1.02, 3.77; P = 0.044), and was more pronounced in patients with increased systemic inflammation. CONCLUSIONS: This study suggests an association of TGFB1 869T/C, but not of IL6 -174G/C, with hypertension in RA patients. If this finding is confirmed in prospective studies, this polymorphism could be used as a screening tool for RA patients with higher risk of developing hypertension and lead to increased surveillance and earlier treatment.


Asunto(s)
Artritis Reumatoide/complicaciones , Hipertensión/complicaciones , Hipertensión/genética , Interleucina-6/genética , Polimorfismo de Nucleótido Simple , Factor de Crecimiento Transformador beta1/genética , Anciano , Artritis Reumatoide/genética , Artritis Reumatoide/inmunología , Estudios de Casos y Controles , Femenino , Frecuencia de los Genes , Predisposición Genética a la Enfermedad , Genotipo , Humanos , Hipertensión/inmunología , Modelos Logísticos , Masculino , Persona de Mediana Edad , Riesgo
5.
Ann Rheum Dis ; 67(1): 70-3, 2008 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-17502358

RESUMEN

OBJECTIVE: Basal metabolic rate (BMR) is the most important indicator of human metabolism and its abnormalities have been linked to undesirable health outcomes. Cigarette smoking associates with increased BMR in healthy individuals; it is also related with worse disease outcomes in patients with rheumatoid arthritis(RA), in whom BMR is high due to hypercatabolism caused by systemic inflammation. We aimed to investigate whether smokers with RA demonstrated higher BMR levels than their non-smoking counterparts. METHODS: A total of 53 patients with RA (36 female, 17 male, 20 current smokers) were assessed for: BMR(indirect calorimetry), anthropometrical data, fat-free mass (bioelectrical impedance), physical function (health assessment questionnaire; HAQ) and disease activity(disease activity score DAS28 and C reactive protein). RESULTS: RA smokers and non-smokers were not significantly different for age, height, weight, body mass index and fat-free mass. Compared to non-smokers,smokers with RA demonstrated significantly higher BMR (mean (SD) 1513.9 (263.3) vs 1718.1 (209.2) kcal/day; p,0.001) and worse HAQ (1.0 (0.8) vs 1.7 (0.8); p=0.01). The BMR difference was significantly predicted by the interaction smoking/gender (p=0.04). BMR was incrementally higher in light, moderate and heavy smokers (p=0.018), and correlated with the daily number of cigarettes smoked (r=0.68, p=0.04). CONCLUSION: Current cigarette smoking further increases BMR in patients with RA and has a negative impact on patients self-reported functional status. Education regarding smoking cessation is needed for the RA population.


Asunto(s)
Artritis Reumatoide/fisiopatología , Fumar/efectos adversos , Adulto , Anciano , Metabolismo Basal , Estudios de Casos y Controles , Femenino , Estado de Salud , Humanos , Masculino , Persona de Mediana Edad
6.
Ann Rheum Dis ; 67(11): 1550-6, 2008 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-18230628

RESUMEN

OBJECTIVE: Cardiovascular disease (CVD) is more prevalent and more likely to lead to death in patients with rheumatoid arthritis (RA). Single nucleotide polymorphisms of the genes for lymphotoxin-A (LT-A) and its regulatory protein galectin-2 (LGALS2) have been implicated as genetic risk factors for acute cardiovascular events in the general population: we hypothesised that their risk alleles/genotypes (a) may be more frequent among patients with RA compared with non-RA controls (thus explaining some of the increased CVD in RA), and (b) may be more frequent among patients with RA with prevalent CVD compared with patients with RA without CVD. METHODS: Genomic DNA samples were collected from 388 patients with RA and 399 local population controls without RA. LT-A gene intron 1 252A>G and LGALS2 intron 1 3279C>T single nucleotide polymorphisms were identified using real-time polymerase chain reaction and melting curve analysis. RESULTS: LT-A 252GG homozygotes were significantly more prevalent among patients with RA compared with controls (19.8% vs 11.8%, p = 0.002; OR(GG/GA,AA) = 1.85, 95% CI 1.25 to 2.75, p = 0.002). Patients with RA possessing LT-A 252 GG were significantly more likely to have had a myocardial infarction compared with those with LT-A 252 AA or GA (13% vs 5.5%, p = 0.02; adjusted OR(GG/GA,AA) = 3.03, 95% CI 1.2 to 7.68, p = 0.002). The frequency of LGALS2 polymorphisms was similar between RA and controls and was not associated with CVD among patients with RA. CONCLUSIONS: The LT-A 252GG genotype occurs more frequently among patients with RA than the general population. In RA, this genotype appears to associate with increased likelihood of suffering an myocardial infarction.


Asunto(s)
Artritis Reumatoide/genética , Linfotoxina-alfa/genética , Infarto del Miocardio/genética , Polimorfismo de Nucleótido Simple , Adulto , Anciano , Artritis Reumatoide/complicaciones , Estudios de Casos y Controles , Femenino , Galectina 2/genética , Frecuencia de los Genes , Predisposición Genética a la Enfermedad , Genotipo , Humanos , Masculino , Persona de Mediana Edad , Infarto del Miocardio/etiología , Fenotipo , Factores de Riesgo
7.
Rheumatology (Oxford) ; 47(4): 500-6, 2008 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-18304942

RESUMEN

OBJECTIVES: Resting energy expenditure (REE), one of the main components of total energy expenditure, can be measured via indirect calorimetry and/or predicted from equations. The latter may be misleading in RA, as they do not take into account the metabolic alterations occurring in RA. The objectives of this study are to evaluate the accuracy of widely used REE-predictive equations in RA patients against measured REE and to develop RA-specific equations. METHODS: We assessed REE (via indirect calorimetry and several predictive equations), fat-free mass (FFM; via bioelectrical impedance) and disease activity (CRP) in RA patients and healthy controls. Data from 60 RA patients (experimental group) were used to assess the accuracy of existing REE equations and to develop new equations. The new equations were validated in an independent cross-validation group of 22 RA patients. These two groups were merged and two final equations were developed. RESULTS: All equations significantly under-predicted measured REE (from 15% to 18.2%, all at P < 0.001) in the RA experimental group, but not in the control group. After both equations demonstrated a high validity in the cross-validation group, the new final REE prediction equations developed from the total RA sample (n = 82) were: Model 1: REE (kcal/day) = 126.1 x FFM(0.638) x CRP(0.045) (R(2) = 0.70) and Model 2: REE (kcal/day) = 598.8 x weight(0.47) x age(-0.29) x CRP(0.066) (R(2) = 0.62). CONCLUSION: The new equations provide an accurate prediction of REE in RA patients and could be used for clinical monitoring of resting metabolism of these patients without the requirement for specialized personnel.


Asunto(s)
Artritis Reumatoide/metabolismo , Metabolismo Energético , Modelos Biológicos , Anciano , Antropometría/métodos , Antirreumáticos/uso terapéutico , Artritis Reumatoide/sangre , Artritis Reumatoide/tratamiento farmacológico , Biomarcadores/sangre , Peso Corporal , Proteína C-Reactiva/metabolismo , Calorimetría Indirecta , Femenino , Humanos , Masculino , Persona de Mediana Edad , Reproducibilidad de los Resultados , Índice de Severidad de la Enfermedad , Factor de Necrosis Tumoral alfa/antagonistas & inhibidores
8.
Rheumatology (Oxford) ; 47(1): 72-5, 2008 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-18077493

RESUMEN

OBJECTIVE: Rheumatoid arthritis (RA) associates with increased cardiovascular morbidity and mortality that is due to both traditional and novel cardiovascular risk factors. Hypertension (HT), one of the most common risk factors for cardiovascular disease, is highly prevalent in RA. The effects of long-term glucocorticoid (GC) therapy on blood pressure have not been established yet. This study examined whether GC exposure associates with HT in patients with RA. METHODS: Four hundred consecutive RA patients with detailed clinical and laboratory assessments were categorized into three groups according to GC exposure: no or limited exposure (N/L-E); a low-dose (< 7.5 mg) long-term exposure (LD/LT-E); and medium-dose (> or = 7.5 mg) long-term exposure (MD/LT-E). The association of GC exposure with HT was evaluated using logistic regression analysis. RESULTS: HT was more prevalent in the MD/LT-E group (84.7%) than the LD/LT-E or N/L-E groups (70.7 and 67.3%, respectively, P = 0.028). Logistic regression revealed increased odds for HT when comparing MD/LT-E with N/L-E, after adjustment for HT risk factors [odds ratio (OR) = 2.57, 95% CI 1.01-6.56, P = 0.049] and RA disease characteristics (OR = 3.64, 95% CI: 1.36-9.77, P = 0.01). CONCLUSIONS: MD/LT GC exposure associates with a very high prevalence of HT. This appears to be independent of other risk factors for HT or of channelling bias due to disease severity, even though the latter cannot be excluded given the cross-sectional nature of our study. RA patients in this GC exposure group should be particularly targeted for early identification and aggressive management of HT.


Asunto(s)
Artritis Reumatoide/epidemiología , Glucocorticoides/efectos adversos , Hipertensión/epidemiología , Prednisolona/efectos adversos , Anciano , Artritis Reumatoide/diagnóstico , Artritis Reumatoide/tratamiento farmacológico , Presión Sanguínea/efectos de los fármacos , Estudios de Cohortes , Comorbilidad , Estudios Transversales , Relación Dosis-Respuesta a Droga , Femenino , Humanos , Hipertensión/diagnóstico , Hipertensión/etiología , Modelos Logísticos , Masculino , Persona de Mediana Edad , Factores de Riesgo , Reino Unido/epidemiología
9.
Rheumatology (Oxford) ; 47(3): 239-48, 2008 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-18045810

RESUMEN

This systematic review investigates the effectiveness of exercise interventions in improving disease-related characteristics in patients with rheumatoid arthritis (RA). It also provides suggestions for exercise programmes suitable for improving the cardiovascular profile of RA patients and proposes areas for future research in the field. Six databases (Medline, Cochrane Library, CINAHL, Google Scholar, EMBASE and PEDro) were searched to identify publications from 1974 to December 2006 regarding RA and exercise interventions. The quality of the studies included was determined by using the Jadad scale. Initial searches identified 1342 articles from which 40 met the inclusion criteria. No studies were found investigating exercise interventions in relation to cardiovascular disease in RA. There is strong evidence suggesting that exercise from low to high intensity of various modes is effective in improving disease-related characteristics and functional ability in RA patients. Future studies are required to investigate the effects of exercise in improving the cardiovascular status of this patient population.


Asunto(s)
Artritis Reumatoide/rehabilitación , Enfermedades Cardiovasculares/prevención & control , Ejercicio Físico/fisiología , Aptitud Física/fisiología , Calidad de Vida , Actividades Cotidianas , Artritis Reumatoide/diagnóstico , Progresión de la Enfermedad , Medicina Basada en la Evidencia , Femenino , Humanos , Masculino , Dimensión del Dolor , Pronóstico , Rango del Movimiento Articular/fisiología , Medición de Riesgo , Índice de Severidad de la Enfermedad , Resultado del Tratamiento
10.
J Hum Hypertens ; 22(3): 177-82, 2008 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-17960169

RESUMEN

Hypertension (HT) is highly prevalent in rheumatoid arthritis (RA). Serum uric acid (SUA) has been associated with HT in the general population. The mutual exclusion of gout and RA, and the systemic inflammatory component of RA may alter this association in this patient population. We explored a potential association between SUA levels and HT in RA and evaluated whether this association is independent of HT risk factors, RA characteristics and relevant drugs. A total of 400 consecutive RA patients were assessed. SUA and complete biochemical profile were measured. Demographic, HT-related factors, RA characteristics and drugs were assessed as potential covariates. Results were analysed using binary logistic models to test the independence of the association between SUA and HT. SUA levels were higher in hypertensive compared to normotensive RA patients (5.44+/-1.6 mg dl(-1) (323.57+/-95.17 micromol l(-1)) vs 4.56+/-1.1 mg dl(-1) (271.23+/-65.43 micromol l(-1)), P<0.001). When adjusted for HT risk factors, renal function, RA characteristics, non-steroidal anti-inflammatory drugs, oral prednisolone, cyclosporine, leflunomide and low-dose aspirin, the odds of being a hypertensive RA patient per 1 mg dl(-1)(59.48 micromol l(-1)) SUA increase were significantly increased: OR=1.59 (95% CI: 1.21-2.1, P=0.001). This was also significant for the subgroup of patients who were not on diuretics (OR=1.5, 95% CI: 1.1-2.05; P=0.011). This cross-sectional study suggests that SUA levels are independently associated with HT in RA patients. Prospective longitudinal studies are needed to confirm and further explore the causes and implications of this association.


Asunto(s)
Artritis Reumatoide/sangre , Hipertensión/sangre , Ácido Úrico/sangre , Artritis Reumatoide/tratamiento farmacológico , Femenino , Humanos , Hipertensión/epidemiología , Modelos Logísticos , Masculino , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Prevalencia , Factores de Riesgo
11.
Rheumatology (Oxford) ; 46(12): 1824-7, 2007 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-18032540

RESUMEN

OBJECTIVES: Rheumatoid arthritis (RA) is accompanied by increased resting energy expenditure (REE) and decreased fat-free mass (FFM). This is referred to as rheumatoid cachexia and is attributed to high levels of tumour necrosis factor-alpha (TNF-alpha). This study aimed to investigate the effects of anti-TNF-alpha therapy on REE, body composition, physical activity and protein intake in RA patients. METHODS: Twenty RA patients [50% female; age: (mean +/- s.d.) 61.1 +/- 6.8 yrs; body mass index (BMI): 28.3 +/- 3.7 kg/m2] and 12 age-sex-BMI-matched healthy controls were assessed. REE (indirect calorimetry), body composition (bioelectrical impedance), the International Physical Activity Questionnaire (IPAQ), diet, Health Assessment Questionnaire (HAQ), disease activity [disease activity score 28 (DAS28), erythrocyte sedimentation rate (ESR), C-reactive protein] and serum TNF-alpha were measured before (Baseline) as well as 2 weeks (Time-1) and 12 weeks (Time-2) after initiation of anti-TNF-alpha treatment. Controls were only assessed at Baseline. RESULTS: RA patients had significantly higher REE than controls at Baseline (1799.4 +/- 292.0 vs 1502.9 +/- 114.5 kcal/day, P = 0.002). Within the RA group, REE increased significantly between Time-1 and Time-2 (P = 0.001) but not between Baseline and Time-2. Sustained significant increases were observed in IPAQ (P = 0.001) and protein intake (P = 0.001). There were no significant changes in FFM or body fat. ESR (P = 0.002), DAS28 (P < 0.001), HAQ (P < 0.001) and TNF-alpha (P = 0.024) improved significantly. Physical activity (P = 0.001) and protein intake (P = 0.024) were significant between-subject factors for the elevation of REE. CONCLUSIONS: After 12 weeks of anti-TNF-alpha therapy, there were significant improvements in disease activity and physical function, as well as physical activity and protein intake, but no significant changes in REE or FFM. There is a need for longer-term studies in this field.


Asunto(s)
Antirreumáticos/administración & dosificación , Artritis Reumatoide/complicaciones , Artritis Reumatoide/tratamiento farmacológico , Caquexia/etiología , Metabolismo Energético/efectos de los fármacos , Factor de Necrosis Tumoral alfa/antagonistas & inhibidores , Anciano , Análisis de Varianza , Artritis Reumatoide/diagnóstico , Composición Corporal , Índice de Masa Corporal , Caquexia/fisiopatología , Estudios de Casos y Controles , Femenino , Humanos , Masculino , Persona de Mediana Edad , Probabilidad , Pronóstico , Valores de Referencia , Medición de Riesgo , Resultado del Tratamiento , Factor de Necrosis Tumoral alfa/metabolismo
12.
Musculoskeletal Care ; 5(1): 51-64, 2007 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-17340595

RESUMEN

BACKGROUND: Sleep is an important daily process that can be disrupted by chronic illnesses including rheumatoid arthritis (RA). AIMS: We tested whether demographic, medical and psychological factors act as predictors of change in frequency of sleep disruption associated with RA. METHODS: A cohort of 129 White British people with RA (mean duration of RA 7.19 years; mean age 55.40 years; 75% women) was followed for one year. Self-report questionnaires were employed to record demographic information and assess participants' sleep disruption (on a 4-point frequency scale), morning stiffness (duration), pain and fatigue (visual analogue scales), impact of disability, anxiety, depression, stress, coping, illness perceptions and self-efficacy. Hospital notes were reviewed for duration of RA, antidepressant use and comorbidity. RESULTS: Participants were split into those with sleep disruption that was consistently infrequent or decreasing in frequency (n = 56; 43%) and those with sleep disruption that was consistently frequent or increasing in frequency (n = 73; 57%). Results of a logistic regression demonstrated that greater perceived stress at baseline predicted sleep disruption that was consistently frequent or increasing in frequency over the year. Change in sleep disruption frequency was not predicted by any other assessed variable. Perceived stress at the end of the year was not predicted by change in frequency of sleep disruption. CONCLUSIONS: Self-reported frequency of sleep disruption among people with RA relates to perceived stress. Psychoeducational programmes that help people with RA manage their stress may be a non-pharmacological method of improving sleep quality and therefore merits testing in specific interventional studies.


Asunto(s)
Artritis Reumatoide/psicología , Trastornos del Sueño-Vigilia/etiología , Estrés Psicológico/complicaciones , Adulto , Anciano , Estudios de Cohortes , Femenino , Humanos , Masculino , Persona de Mediana Edad , Factores de Riesgo , Autoimagen , Encuestas y Cuestionarios , Factores de Tiempo
13.
Rheumatology (Oxford) ; 46(9): 1477-82, 2007 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-17704521

RESUMEN

OBJECTIVES: Rheumatoid arthritis (RA) associates with excessive cardiovascular morbidity and mortality. Hypertension (HT) contributes significantly to the development of cardiovascular disease (CVD). Little is known about the factors that influence blood pressure (BP) in patients with RA. In this study, we assessed the prevalence of HT in a secondary care cohort of RA patients, and aimed to identify factors associated with its presence and inadequate control. METHODS: A total of 400 consecutive RA patients were studied. HT was defined as systolic BP >/=140 mmHg and/or diastolic BP >/=90 mmHg or current use of antihypertensive drugs. The association of HT with several demographic and RA-related factors, comorbidities and drugs was evaluated using logistic regression. RESULTS: HT was present in 282 (70.5%) patients. Of those, 171 (60.6%) received anti-hypertensive therapy, but 111 (39.4%) remained undiagnosed. Of those treated, only 37/171 (21.8%) were optimally controlled. Multivariable logistic regression revealed age (OR = 1.054, CI: 1.02 to 1.07, P = 0.001), body mass index [BMI (OR = 1.06, CI: 1.003-1.121, P = 0.038)] and prednisolone use (OR = 2.39, CI: 1.02-5.6, P = 0.045) to be independently associated with the presence of HT. BMI (OR = 1.11, CI: 1.02-1.21, P = 0.002) and the presence of CVD (OR = 4.01, CI: 1.27-12.69, P = 0.018) associated with uncontrolled HT. CONCLUSIONS: HT is highly prevalent in RA, under-diagnosed particularly in the young, and under-treated particularly in old RA patients with CVD. RA patients receiving steroids should be specifically targeted for screening and treatment; those with any cardiovascular comorbidity may require particularly aggressive monitoring and treatment strategies.


Asunto(s)
Artritis Reumatoide/complicaciones , Hipertensión/etiología , Factores de Edad , Anciano , Antihipertensivos/uso terapéutico , Antirreumáticos/uso terapéutico , Artritis Reumatoide/tratamiento farmacológico , Artritis Reumatoide/epidemiología , Estudios Transversales , Inglaterra/epidemiología , Femenino , Humanos , Hipertensión/tratamiento farmacológico , Hipertensión/epidemiología , Masculino , Persona de Mediana Edad , Prevalencia , Factores de Riesgo , Índice de Severidad de la Enfermedad
14.
Musculoskeletal Care ; 5(4): 175-90, 2007 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-17623274

RESUMEN

BACKGROUND: People with rheumatoid arthritis (RA) often have comorbidities with associated disability and complex medication regimens. Little published evidence exists about why people with RA require so many medications, although it is logical to hypothesize that this may relate to older age, longer duration of RA, more active RA, worse functional disability and a greater number of comorbidities. OBJECTIVES: We set out to quantify polypharmacy in RA and identify its predictors in an observational cohort. METHODS: The case notes of 348 people receiving secondary care for RA were reviewed to record polypharmacy. The 28-joint Disease Activity Score (DAS28) was calculated and the Health Assessment Questionnaire (HAQ) and the Self-administered Comorbidity Questionnaire (SCQ) were completed. RESULTS: The mean total number of medications was 5.39, with a maximum of 16; of these, a mean of 2.41 medications were directly for RA. A mediational relationship was identified: older age and longer RA duration were significant predictors of a greater total number of medications, but these relationships were explained by the greater number of comorbidities in older participants and those with longer RA duration. Polypharmacy was not related to RA activity or functional disability. CONCLUSIONS: Polypharmacy is common among people with RA and associates with older age and longer RA duration through a greater number of comorbidities. Regular review of the full treatment plan of individuals with RA by pharmacists and other health professionals specializing in rheumatology, to weigh the benefits and risks of each medication and their interactions in light of RA activity and comorbidities, is advocated.


Asunto(s)
Antirreumáticos/uso terapéutico , Artritis Reumatoide/tratamiento farmacológico , Polifarmacia , Adulto , Factores de Edad , Anciano , Anciano de 80 o más Años , Antirreumáticos/administración & dosificación , Artritis Reumatoide/epidemiología , Artritis Reumatoide/fisiopatología , Estudios de Cohortes , Comorbilidad , Evaluación de la Discapacidad , Femenino , Estado de Salud , Humanos , Masculino , Persona de Mediana Edad , Índice de Severidad de la Enfermedad , Encuestas y Cuestionarios , Factores de Tiempo , Reino Unido/epidemiología
15.
Rheumatology (Oxford) ; 46(9): 1466-70, 2007 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-17644822

RESUMEN

OBJECTIVES: Elevated serum uric acid (SUA) levels have been associated with cardiovascular disease (CVD) in the general population. Rheumatoid arthritis (RA) is not thought to associate with high SUA but is characterized by increased CVD morbidity and mortality. We aimed to explore a potential association of SUA with CVD in RA patients and to evaluate whether such an association is present when the traditional CVD risk factors are taken into account. METHODS: . 400 consecutive RA patients were recruited in this cross-sectional study and had all traditional CVD risk factors and SUA assessed. The association of SUA levels with other variables was assessed using bivariate correlations. Subsequent binary logistic models with appropriate adjustments were used to test the independence of the association between SUA and CVD. RESULTS: SUA levels were significantly higher in RA patients with CVD (RA + CVD) compared with RA patients without CVD (RA - CVD) (5.68 +/- 1.81 mg dl(-1) vs 5.06 +/- 1.41 mg dl(-1), P = 0.001). After adjusting for CVD risk factors, physical function (health assessment questionnaire, HAQ) and use of diuretics and/or statins the association between SUA and CVD in RA patients remained significant [Odds ratio (OR) = 1.36, 95% confidence interval (CI) 1.04-1.79, P = 0.025]. Compared with subjects with SUA levels in the lowest quintile (<3.86 mg dl(-1)), those within the highest quintile (>/=6.38 mg dl(-1)) had a 6-fold increase in the odds of having CVD (adjusted OR 6.46, 95% CI 1.66-25.05, P = 0.007). CONCLUSIONS: This cross-sectional study suggests that SUA may be independently associated with CVD in RA patients. This needs to be confirmed in prospective studies.


Asunto(s)
Artritis Reumatoide/complicaciones , Enfermedades Cardiovasculares/etiología , Hiperuricemia/complicaciones , Anciano , Artritis Reumatoide/sangre , Biomarcadores/sangre , Enfermedades Cardiovasculares/sangre , Estudios Transversales , Femenino , Humanos , Hiperuricemia/sangre , Masculino , Persona de Mediana Edad , Factores de Riesgo , Índice de Severidad de la Enfermedad , Ácido Úrico/sangre
16.
Ann Rheum Dis ; 65(10): 1341-5, 2006 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-16476709

RESUMEN

BACKGROUND: Cutaneous abnormalities are common in rheumatoid arthritis, but exact prevalence estimates are yet to be established. Some abnormalities may be independent and coincidental, whereas others may relate to rheumatoid arthritis or its treatment. OBJECTIVES: To determine the exact nature and point prevalence of cutaneous abnormalities in patients with rheumatoid arthritis compared with those in patients with non-inflammatory rheumatic disease. METHODS: 349 consecutive outpatients for rheumatology (205 with rheumatoid arthritis and 144 with non-inflammatory rheumatic conditions) were examined for skin and nail signs by a dermatologist. Histories of rheumatology, dermatology, drugs and allergy were noted in detail. RESULTS: Skin abnormalities were reported by more patients with rheumatoid arthritis (61%) than non-inflammatory controls (47%). More patients with rheumatoid arthritis (39%) than controls (10%) attributed their skin abnormality to drugs. Cutaneous abnormalities observed by the dermatologist were also more common in patients with rheumatoid arthritis (76%) than in the group with non-inflammatory disease (60%). Specifically, bruising, athlete's foot, scars, rheumatoid nodules and vasculitic lesions were more common in patients with rheumatoid arthritis than in controls. The presence of bruising was predicted only by current steroid use. The presence of any other specific cutaneous abnormalities was not predicted by any of the variables assessed. In the whole group, current steroid use and having rheumatoid arthritis were the only important predictors of having any cutaneous abnormality. CONCLUSIONS: Self-reported and observed cutaneous abnormalities are more common in patients with rheumatoid arthritis than in controls with non-inflammatory disease. These include cutaneous abnormalities related to side effects of drugs or to rheumatoid arthritis itself and other abnormalities previously believed to be independent but which may be of clinical importance.


Asunto(s)
Artritis Reumatoide/complicaciones , Enfermedades de la Piel/etiología , Adulto , Anciano , Antirreumáticos/efectos adversos , Artritis Reumatoide/tratamiento farmacológico , Erupciones por Medicamentos/etiología , Métodos Epidemiológicos , Femenino , Glucocorticoides/efectos adversos , Humanos , Masculino , Persona de Mediana Edad , Enfermedades Reumáticas/complicaciones
17.
Lupus ; 15(8): 532-40, 2006.
Artículo en Inglés | MEDLINE | ID: mdl-16942007

RESUMEN

Outwardly visible signs associated with systemic lupus erythematosus (SLE) can include facial rashes, alopecia and weight gain. We sought to understand the concerns of SLE patients about their appearance and the recognition of this by healthcare professionals. Semi-structured interviews were carried out with 10 women aged 26-68 years diagnosed with SLE for one to 12 years. Data were analysed with Interpretative Phenomenological Analysis (IPA); this seeks to describe and provide understanding of people's experience of a phenomenon by studying in-depth a small number from a relatively homogeneous group (women with SLE in the present study). Analysis revealed three themes concerning appearance issues. Participants described public self-consciousness after the onset of SLE. Cosmetics and clothing were used skilfully to appear 'normal', hide the 'self' and assert control but could increase feelings of difference and isolation. Self-imposed isolation was also described and may relate to depression. The understanding of family, friends, colleagues and healthcare providers was also important. Awareness of the psychosocial concerns of SLE patients with life-changing skin disease may enable multidisciplinary healthcare teams to offer a more sensitive, practical service. The physical and emotional needs of SLE patients need to be ascertained and appropriate educational and psychological services are required.


Asunto(s)
Imagen Corporal , Lupus Eritematoso Sistémico , Adulto , Anciano , Actitud Frente a la Salud , Femenino , Humanos , Entrevistas como Asunto , Lupus Eritematoso Sistémico/patología , Lupus Eritematoso Sistémico/psicología , Persona de Mediana Edad , Calidad de Vida
18.
Ann Rheum Dis ; 65(5): 585-9, 2006 May.
Artículo en Inglés | MEDLINE | ID: mdl-16219711

RESUMEN

OBJECTIVES: To examine the perceptions of patients with systemic lupus erythematosus (SLE) about their health care provision in the United Kingdom. METHODS: Semistructured interviews were conducted with 10 women aged 26 to 68 years who were diagnosed with SLE one to 12 years earlier. Interviews were audio recorded, transcribed verbatim, and analysed using interpretative phenomenological analysis to organise the themes of importance to participants. RESULTS: Four themes emerged: diagnostic difficulties; understanding; communication; and integrated health care. Before diagnosis there was concern to appear legitimately ill and to have a label for the condition. After diagnosis participants still encountered health care professionals who were poorly informed about SLE. Family, friends, and employers did not understand the fluctuating nature of SLE, which often led to isolation. Participants felt that even health care professionals who specialised in SLE could not fully understand the psychosocial impact of the condition, and therefore did not provide information to meet those needs. Participants did not know which of the many health care professionals they had contact with to approach about their concerns. Lack of communication at an interdisciplinary level left them feeling that nobody was "joining the dots" for their health care. CONCLUSIONS: Patients with SLE do not feel understood by health care providers or people close to them. Support from trained volunteers with SLE, as available at the open access lupus clinic in Dudley (West Midlands, UK), would ensure more adequate information from someone with personal experience. Such services may improve communication and help minimise SLE patients' isolation.


Asunto(s)
Actitud Frente a la Salud , Atención a la Salud/normas , Lupus Eritematoso Sistémico/psicología , Adulto , Anciano , Comunicación , Prestación Integrada de Atención de Salud/normas , Inglaterra , Femenino , Investigación sobre Servicios de Salud , Humanos , Lupus Eritematoso Sistémico/diagnóstico , Lupus Eritematoso Sistémico/terapia , Persona de Mediana Edad , Satisfacción del Paciente , Relaciones Médico-Paciente , Investigación Cualitativa
19.
Ann Rheum Dis ; 65(3): 348-53, 2006 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-16079169

RESUMEN

BACKGROUND: Cardiovascular mortality is increased in rheumatoid arthritis. Possible reasons include an increased incidence of ischaemic heart disease or worse outcome after acute coronary syndrome (ACS). OBJECTIVES: To assess the outcome of ACS in rheumatoid arthritis compared with case matched controls in the context of underlying cardiac risk factors, clinical presentation, and subsequent management. METHODS: 40 patients with rheumatoid arthritis and ACS identified from coronary care admission registers between 1990 and 2000 were case matched as closely as possible for age, sex, classical cardiovascular risk factors, type and severity of ACS, and admission date (+/-3 months) with 40 controls. A standardised proforma was used for detailed case note review. RESULTS: Age, sex, other cardiovascular risk factors, and type and severity of presenting ACS were not significantly different between cases and controls. Recurrent cardiac events were commoner in rheumatoid arthritis (23/40, 57.5%) than controls (12/40, 30%) (p = 0.013); there were 16/40 deaths in rheumatoid arthritis (40%) v 6/40 (15%) in controls (p = 0.012). Recurrent events occurred earlier in rheumatoid arthritis (log rank survival, p = 0.05). Presentation with chest pain occurred in all controls compared with 33/40 rheumatoid patients (82%) (p = 0.006); collapse occurred in one control (2.5%) v 7/40 rheumatoid patients (17.5%) (p = 0.025). Treatment during the ACS was not significantly different in the two groups. CONCLUSIONS: Recurrent ischaemic events and death occur more often after ACS in rheumatoid arthritis. Atypical presentation is commoner in rheumatoid arthritis. There is an urgent need to develop identification and intervention strategies for ACS specific to this high risk group.


Asunto(s)
Artritis Reumatoide/complicaciones , Isquemia Miocárdica/etiología , Anciano , Anciano de 80 o más Años , Angina Inestable/etiología , Angina Inestable/terapia , Enfermedad Coronaria/etiología , Enfermedad Coronaria/terapia , Métodos Epidemiológicos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Isquemia Miocárdica/terapia , Pronóstico , Recurrencia , Síndrome
20.
Musculoskeletal Care ; 4(4): 204-22, 2006 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-17117445

RESUMEN

BACKGROUND: Anti-tumour necrosis factor (anti-TNF) therapy has been an important development for the treatment of rheumatoid arthritis (RA) but the impact of its delivery on hospital resources in still emerging. AIMS: We audited the effect of starting anti-TNF on the use of other anti-rheumatic therapies and hospital resources in a routine secondary care setting. METHODS: A retrospective study of resource use before and after anti-TNF was conducted. Hospital records of 54 RA patients were studied and data taken from the time of commencing anti-TNF to 1 October 2004 and an equal time period prior to commencing anti-TNF. Identical data were collected for 54 controls not on anti-TNF. Relevant figures were extrapolated to per annum rates. Results were analysed using two-factor ANOVAs comparing the pre- versus post-anti-TNF period. Cases on intravenous (IV) versus subcutaneous (SC) anti-TNF were also compared in separate ANOVAs. RESULTS: Mean duration of anti-TNF therapy was 17.04 months (range 3.60-42.36). Mean pre- and 3-months post-anti-TNF Disease Activity Scores (DAS28) were 6.93 and 3.88, respectively. Cases were more likely than controls to be on oral prednisolone pre- and post-anti-TNF. Methylprednisolone requirement, number of disease-modifying anti-rheumatic drugs (DMARDs), telephone helpline contacts and duration as an inpatient reduced significantly post-anti-TNF. Day case admissions increased but outpatient appointments decreased only in cases on IV anti-TNF. CONCLUSIONS: In a pragmatic setting, anti-TNF therapy led to reduced need for steroid injections and other DMARDs, as well as reductions in use of several hospital resources. Wider replication of these findings will be important for planning delivery.


Asunto(s)
Anticuerpos Monoclonales/uso terapéutico , Antirreumáticos/uso terapéutico , Artritis Reumatoide/tratamiento farmacológico , Recursos en Salud/estadística & datos numéricos , Factores Inmunológicos/uso terapéutico , Factor de Necrosis Tumoral alfa/inmunología , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Tiempo de Internación , Masculino , Auditoría Médica , Persona de Mediana Edad , Estudios Retrospectivos
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