Effect of Photobiomodulation on an Experimental Model of Lower Limb Ischemia.

Photobiomodulation (PBM) has been shown to be promising for the promotion of angiogenesis. The present study investigated the effects of PBM on vascularization in an animal model of peripheral artery disease. Wistar rats were divided into three groups. The control group received no procedures. The ischemia group was submitted to ligation of the femoral artery of the hindleg. The ischemia + PBM group was submitted to ligation of the femoral artery followed by PBM (660 and 808 nm, 100 mW, 4 J) over the site. Animals with ischemia treated with PBM exhibited comparable results to the control group with regards to the diameter of the α-SMA+ vessels, cross-sectional area of muscle fibers, percentage of collagen and serum concentration of IL-17A, as well as similarities in terms of vertical mobility, temperature of the hindleg, number of acts of grooming, and percentage of movement, indicating a condition like that of limbs unaffected by ischemia.

Adjuvant effect of antimicrobial photodynamic therapy (aPDT) in the treatment of diabetic foot ulcers: A case series.

This study aimed to evaluate the clinical evolution of patients with diabetic foot ulcer treated with antimicrobial photodynamic therapy (aPDT) using the Bates-Jensen (BJ) scale. A total of 21 patients were monitored, with an average age of 58 years. Patients underwent the standard treatment protocol of the institution, supplemented with aPDT utilizing 0.01% methylene blue (MB) and laser irradiation (660 nm, 100 mW, 6 J per point). Following aPDT, the lesions were protected with hydrofiber dressings containing silver. The Bates-Jensen Scale was employed at pre-treatment and post-aPDT sessions to assess lesion progression. The results demonstrated a significant difference between pre- and post-treatment values in the overall BJ score. The use of MB in aPDT proved to be an effective, safe, well-tolerated treatment with high patient adherence and the potential for implementation in the care of diabetic foot conditions.

Early high amino-acid intake is associated with hypophosphatemia in preterm infants.

OBJECTIVE: To estimate the incidence of hypophosphatemia in preterm infants according to parenteral nutrition received and to evaluate associated risk factors. DESIGN: A prospective multicenter cohort study included 111 patients ≤ 1250 g (7 NICUs of the NEOCOSUR Network). Two groups were compared according to the amino-acid supply in the first 48 h: aggressive parenteral group ≥ 3 g/kg/day and standard parenteral group: <2.9 g/kg/day. Hypophosphatemia was defined as serum phosphate < 4 mg/dl. A logistic regression analysis was performed to evaluate associated risk factors. RESULTS: Fifty-eight infants received aggressive parenteral nutrition. The incidence of hypophosphatemia was significantly higher in the aggressive parenteral group (77.5% vs 53.8%, p = 0.009). Hypophosphatemia was independently associated with aggressive parenteral nutrition (aOR 4.16 95% CI 1.54-12.24) and negatively associated with phosphorous intake (aOR 0.92 95% CI 0.87-0.97). CONCLUSION: Both high amino-acid intake and low phosphorus supply during the first days after birth were independently associated with hypophosphatemia.

Performance of the RABBIT infection risk score in an Argentinian rheumatoid arthritis cohort.

Patients with rheumatic autoimmune diseases have a higher risk of infections compared with age-and sex-matched controls. In Latin America, there are no validated tools to assess the risk of serious infection. The objectives were to estimate the incidence of serious infections in a cohort of rheumatoid arthritis (RA) patients followed for 12 months and to validate the RABBIT risk score for serious infections. Patients with RA were included and followed for 12 months. Baseline sociodemographic data, comorbidities, RA characteristics, and vaccination status were recorded. The baseline RABBIT risk score was calculated. Serious infections were documented, describing site and time since enrollment. Six hundred five patients were included (13 centers). The incidence of serious infection was 5% (95% CI 3-7). The most frequent sites were respiratory and urinary (90%). Performance of RABBIT risk score: patients with no infection during follow-up had a median score of 1.2 (IQR 0.8-2.1) and patients with infection 5.1 (IQR 2.15-12.6) p 0.00001. ROC curve analysis: AUC 0.86 (95% CI 0.8-0.94), best cut-off 2.85 (sensibility 75%, specificity 85%). The incidence of serious infections was 5% during the follow-up. The RABBIT score performed excellently in our patients. Key Points • The RABBIT risk score for serious infections showed an excellent performance in a population different (Latin America) from the original one included in the German registry. • This may assist rheumatologists in selecting drugs for patients according to the individual risk of infection, in a fast and simple way.

Asociación entre Artritis Reumatoidea y otras enfermedades autoinmunes / Association between Rheumatoid Arthritis and other autoimmune diseases

Objetivos: Determinar la frecuencia de enfermedades autoinmunes (EAI) en pacientes con Artritis Reumatoidea (AR) y comparar la frecuencia de EAI entre pacientes con AR y sin AR ni otra EAI reumatológica. Material y Métodos: Estudio multicéntrico, observacional, analítico, retrospectivo. Se incluyeron pacientes consecutivos con AR (ACR/EULAR 2010) y como grupo control pacientes con diagnóstico inicial de Osteoartritis primaria (OA). Resultados: Se incluyeron 1549 pacientes: 831 con AR (84% mujeres, edad media 55.2 años [DE 13.6]) y 718 con OA (82% mujeres, edad media 67 años [DE 11.1]). La frecuencia de EAI en el grupo AR fue del 22% (n=183). Estos presentaron mayor frecuencia de EAI reumatológicas (9.4 vs 3.3%, p< 0.001), y menor frecuencia de EAI no reumatológicas que aquellos con OA (15.3 vs 20.5, p=0.007). La EAI reumatológica más prevalente fue el Síndrome de Sjögren, el cual fue más frecuente en el grupo AR (87.2 vs 29.2%, p< 0,001). La frecuencia de EAI reumatológicas en los pacientes con AR fue mayor en la forma erosiva (11 vs 6.8%, p=0.048). Conclusión: La frecuencia de EAI en los pacientes con AR fue del 22%, en quienes predominaron las de etiología reumatológica mientras que, las no reumatológicas predominaron en pacientes con OA.

Objectives: To determine the frequency of autoimmune diseases (AID) in Rheumatoid Arthritis (RA) patients and to compare this frequency between patients with and without RA or other rheumatologic AID. Methods: Multicenter, observational, analytical, retrospective study. Consecutive patients with diagnosis of RA (ACR/EULAR 2010) were included. Patients with initial diagnosis of primary ostearthritis (OA) were used as control group. Results: A total of 1549 patients were included: 831 RA (84% women, mean age 55.2 [±13.6]) and 718 OA (82% women, mean age 67 [± 11.1]). The frequency of AID in the RA group was 22% (n=183). RA patients showed higher frequency of rheumatologic AID (9.4 vs 3.3%, p< 0.001), and lower frequency of non-rheumatologic AID than OA patients (15.3 vs 20.5%, p= 0.007). The most prevalent rheumatic AID was Sjögren's Syndrome, which was more frequent in the AR group (87.2 vs 29.2%, p<0.001). The frequency of rheumatologic AID in RA patients was higher in those with erosive RA (11 vs 6.8%, p=0.048). Conclusion: The frequency of AID in RA patients was 22%. Rheumatologic AID were more frequent in RA patients, whereas non-rheumatologic AID prevailed in OA patients.

A useful tool to assess quality of LIFE in rheumatoid arthritis patients that does not require a license: QOL-RA II.

To validate the Quality of Life-Rheumatoid Arthritis Scale II (QOL-RA II) in an Argentinean cohort of patients with rheumatoid arthritis (RA). Patients ≥ 18 years old, with a diagnosis of RA according to ACR-EULAR 2010 criteria, were included in a cross-sectional study. Sociodemographic data, comorbidities, RA characteristics, disease activity, and current treatment were registered. Questionnaires were administered, including EQ-5D-3 L, QOL-RA II, HAQ-A, and PHQ-9. The QOL-RA II was re-administered in 20 patients to evaluate reproducibility. Four hundred and thirty patients were included. Median QOL-RA was 6.6 (IQR 5.3-8). Mean time to complete it was 1.7 ± 0.57 min and to calculate it was 12 ± 1.7 s. It showed very good reliability (Cronbach's alpha 0.97), reproducibility (ICC, 0.96), and good correlation between the different items and the total questionnaire, without evidence of redundancy. Besides, QOL-RA II presented good correlation with EQ-5D-3L (Rho, 0.6) and moderate with DAS28 (Rho, 0.38), and CDAI (Rho, 0.46). Worse quality of life was observed in patients not doing physical activity, unemployed, and current smokers. Patients with higher disease activity had a significant poorer quality of life. Adjusting by age, sex and disease duration, unemployment, higher disease activity, disability, and the presence of depression were independently associated to worse quality of life. QOL-RA II demonstrated good construct validity, reproducibility, and reliability. It was easy to complete and calculate and does not require a license for its use, thus making it the optimal tool for assessing the quality of life in Spanish-speaking patients with RA. Key Points • The evaluation of quality of life is very important in patients with Rheumatoid Arthritis. • Most of the questionnaires used to assess the quality of life require a license to use. • QOL-RA II is a valid and simple questionnaire to evaluate the quality of life of patients with RA and does not require a license for its use.

Evaluation of the Educational Needs in Argentine Patients with Rheumatoid Arthritis Using the SpENAT Questionnaire. / Evaluación de las necesidades educacionales de los pacientes con artritis reumatoide mediante el cuestionario SpENAT.

BACKGROUND: The SpENAT, a Spanish version of the Educational Needs Assessment Tool, is a self-completed questionnaire that assesses educational needs (ENs) with the purpose of providing tailored and patient-centered information. It consists of 39 questions grouped into the 7 following domains: Pain management, Movement, Feelings, Arthritic process, Treatments, Self-help measures and Support system. OBJECTIVES: The objective of the study was to describe the ENs of rheumatoid arthritis (RA) patients using the SpENAT and to determine the main sources of information consulted by these patients. MATERIAL AND METHODS: Multicenter, observational, cross-sectional study. We included consecutive patients≥18 years with diagnosis of RA (ACR 87/ACR-EULAR 2010). Sociodemographic data, disease characteristics and clinimetric properties were recorded. All patients completed the SpENAT and were asked about the sources employed to obtain information about their disease. STATISTICAL ANALYSIS: Population characteristics were described. ENs were determined as percentages of the highest possible score for each domain. Needs for each domain according to sex, years of education, disease duration, use of biologicals and functional capacity were analyzed by means of ANOVA, and bivariate comparisons were made with Student's t-test and the Bonferroni correction. Correlation between domains was determined with the Spearman correlation coefficient. We compared patients' age by source of information with Student's t-test. RESULTS: We included 496 patients from 20 centers across the country. More ENs were observed in the domains of Movement, Feelings and the Arthritic process. Patients with higher educational level (>7 years) reported more ENs in the Arthritic process and Self-help measure domains. A higher functional impairment (HAQ-A≥0.87) was associated with more ENs in every domain. Patients with high activity showed more ENs than those in remission in the domains of Pain management, Movement, Feelings, Treatments and Support system, as well as those with low activity in Self-help measures and Support system domains. All SpENAT domains showed positive correlations among each other (P<.0001), the most important being Pain management/Movement and Treatments/Arthritic process (r≥0.7). The source of information most frequently consulted was the rheumatologist (93.95%); those who made use of Internet were on average younger (P=.0004). CONCLUSION: RA patients were very interested about knowing more about their disease. High functional impairment was associated with more ENs. Patients with high disease activity had higher EN levels in almost every domain. The rheumatologist was the main source of information for the patient with RA.

Una nueva herramienta para valorar la calidad de vida de pacientes con artritis reumatoidea que no requiere licencia: el cuestionario QOL-RA II (Quality of Life-Rheumatoid Arthritis Scale-II) / A new tool to assess quality of life in patients with rheumatoid arthritis that does not require a license: QOL-RA II (Quality of Life-Rheumatoid Arthritis Scale-II)

Recientemente, validamos el cuestionario Quality of Life-Rheumatoid Arthritis Scale (QOL-RA) y detectamos la presencia de algunas limitaciones. Por esta razón, con la autorización de la autora, cambiamos dos preguntas y desarrollamos una nueva versión en español: el QOL-RA II. Objetivo: Validar el QOL-RA II en una cohorte argentina de pacientes con Artritis Reumatoidea (AR). Material y métodos: Estudio de corte transversal. Se incluyeron pacientes ≥18 años de edad, con diagnóstico de AR según criterios ACR-EULAR 2010. Se consignaron datos sociodemográficos, comorbilidades, características clínicas y actividad de la enfermedad. Se administraron los cuestionarios EQ-5D-3L, QOL-RA II, HAQ-A y PHQ-9. A 20 pacientes se les re-administró el cuestionario a los 7 días de haber completado el primero para evaluar reproducibilidad. Análisis estadístico: Test T de Student, ANOVA, Chi². Correlación de Spearman. Alpha de Cronbach. Coeficiente de correlación intraclase. Regresión Logística Multinomial con modelo factorial completo. Regresión lineal múltiple. Resultados: Se incluyeron 430 pacientes, con un tiempo mediano (m) de evolución de 9 años (RIC: 4-16). La m del QOL-RA II fue 6,7 (RIC: 5,3-8). El tiempo promedio para completarlo fue de 1,7±0,57 minutos y para su cálculo de 12±1,7 segundos. Solo 9 (2,1%) pacientes no contestaron alguna pregunta. El cuestionario presentó excelente confiabilidad (α de Cronbach 0,97), reproducibilidad (CCI: 0,96) y buena correlación entre los diferentes ítems y el cuestionario total, sin evidencia de redundancia. QOL-RA II presentó además, buena correlación con EQ-5D-3L (Rho: 0,6), HAQ-A (Rho: 0,55) y PHQ-9 (Rho: 0,56) y moderada con los índices de actividad de la enfermedad DAS28-ERS (Rho: 0,38) y CDAI (Rho: 0,46). Se evidenció peor calidad de vida en aquellos pacientes que no realizaban actividad física (X 6,4±1,9 vs. 7±1,8, p <0,0001), en los desocupados (X 6,1±1,9 vs. 7±1,8, p <0,0001) y en los tabaquistas (X 6,2±1,7 vs. 6,7±1,9, p=0,03). Se observó una tendencia significativa a empeorar la calidad de vida a mayor actividad de la enfermedad. Ajustando por edad, sexo y tiempo de evolución de la enfermedad, las variables que se asociaron significativamente a peor calidad de vida fueron la desocupación, la mayor actividad de la enfermedad, la discapacidad funcional y la presencia de depresión. Conclusión: El QOL-RA II demostró buena validez de constructo, reproducibilidad. Fue fácil de completar y calcular. No se observó redundancia entre las preguntas ni influencia por la edad ni el tiempo de evolución de la enfermedad.

We have recently validated the Quality of Life-Rheumatoid Arthritis Scale (QOL-RA). We have found some limitations, that is why, with the author's permission, we have changed two questions and developed a new Spanish version, QOL-RA II. Objective: To validate the QOL-RA II in an Argentinean cohort of patients with Rheumatoid Arthritis (RA). Material and methods: Cross-sectional study. Patients ≥18 years old, with a diagnosis of RA according to ACR-EULAR 2010 criteria were included. Sociodemographic data, comorbidities, RA characteristics, disease activity current treatment were registered. Questionnaires were administered: EQ-5D-3L, QOL-RA, HAQ-A and PHQ-9. The QOL-RA II was re-administered in 20 patients to evaluate reproducibility. Statistical analysis: Student's T, ANOVA and Chi² tests. Spearman correlation. Cronbach's alpha. Reproducibility using ICC. Multinomial logistic regression with completed factorial model. Multiple linear regression. Results: 430 patients were included, with a median (m) disease duration of 8.9 years (IQR: 4-16). QOL-RA was m 6.6 (IQR: 5.3-8). Mean time to complete it was 1.7±0.57 minutes and to calculate it 12±17 seconds. Only 2.1% of the questionnaires presented missing answers. It showed very good reliability (Cronbach's alpha 0.97), reproducibility (ICC: 0.96) and good correlation between the different items and the total questionnaire, without evidence of redundancy. Besides, QOL-RA II presented good correlation with EQ-5D-3L (Rho: 0.6), HAQ-A (Rho: 0.55) and PHQ-9 (Rho: 0.56) and moderate with DAS28-ESR (Rho: 0.38) and CDAI (Rho: 0.46). Worse quality of life was observed in patients not doing physical activity (X 6.4±1.9 vs. 7±1.8, p <0.0001), unemployed (X 6.1±1.9 vs. 7±1.8, p <0.0001) and current smokers (X 6.2±1.7 vs. 6.7±1.9, p=0.03). Patients with higher disease activity had a significant poorer quality of life. Adjusting by age, sex and disease duration, unemployment, higher disease activity, disability and the presence of depression were independently associated to worse quality of life. Conclusions: QOL-RA II demonstrated good construct validity, reproducibility and reliability. It was easy to complete and calculate. There were no redundancy between questions and it was not influenced by age and disease duration.