Entheseal Involvement in Spondyloarthritis (SpA) and Gout: An Ultrasound Comparative Study.

Objective: To compare the assessment of entheses in subjects with spondyloarthritis (SpA) with patients with gout by the Madrid Sonographic Enthesis Index (MASEI). Method: This cross-sectional study includes videos of entheses evaluated by ultrasound (US) of 30 patients with SpA diagnosed according to the ASAS criteria and 30 patients with gout established by the presence of monosodium urate crystals. Entheses were evaluated for MASEI in 2 Institutes located in two different countries. Demographic and clinical data were registered. Total MASEI score, MASEI-inflammatory, and MASEI-chronic damage were analyzed. Comparisons between groups were obtained by chi-square test and Student's t-test. An inter-reading US reliability was realized. Results: Patients with gout were older and had significantly more comorbidities than those with SpA. The total MASEI score was not significantly different among diseases (p = 0.07). MASEI-inflammatory was significantly more prevalent at the Achilles tendon in SpA, while the proximal patellar tendon was in gout. Power Doppler was higher in SpA compared to gout (p = 0.005). MASEI-chronic damage related to calcification/enthesophytes predominated in gout (p = 0.043), while calcaneal erosions did in SpA (p = 0.008). The inter-reader concordance was excellent (0.93, CI 95% 0.87-0.96, p = 0.001). Conclusions: SpA and gout similarly involve entheses according to MASE, however, some inflammatory and chronic lesions differ significantly depending on the underlying disease and tendon scanned.

The current role of capillaroscopy in vasculitides.

Nailfold capillaroscopy (NFC) has gained remarkable interest among rheumatologists because of its utility in both clinical practice and research activity. Nevertheless, there has been scarce attention on its potential in other rheumatic disorders such as vasculitis. We perform a systematic review of literature on NFC in noninfectious vasculitides, with the aim to provide an overview of the main NFC changes described, to discuss the current evidence supporting its clinical impact and applications in daily practice and to provide future research fields.

Levels of Cytokines and MicroRNAs in Individuals With Asymptomatic Hyperuricemia and Ultrasonographic Findings of Gout: A Bench-to-Bedside Approach.

OBJECTIVE: To assess potential associations among serum cytokines and microRNA (miR) levels with ultrasound (US) findings suggestive of urate deposits in chronic asymptomatic hyperuricemia and gout. METHODS: All participants underwent musculoskeletal US and measurements of serum interleukin-1ß (IL-1ß), IL-2, IL-4, IL-5, IL-6, IL-8, IL-10, IL-12, IL-13, interferon-γ, tumor necrosis factor, monocyte chemoattractant protein 1, and epithelial neutrophil-activating peptide 78, as well as miR-146a, miR-155, and miR-223 levels. RESULTS: Thirty individuals with asymptomatic hyperuricemia, 31 normouricemic controls, and 30 patients with gout were included. The frequency of synovitis and double contour sign using US was similar between asymptomatic hyperuricemia (67% and 27%, respectively) and patients with gout (77% and 27%, respectively), and each had a higher frequency than controls (45% and 0%, respectively). Serum IL-6 and IL-8 levels were similar between patients with asymptomatic hyperuricemia (mean ± SD 69.7 ± 73.4 and 18.5 ± 25.6 pg/ml, respectively) and gout (mean ± SD 75.8 ± 47.6 and 24.4 ± 31.7 pg/ml, respectively), and higher than controls (mean ± SD 28.2 ± 17.6 and 7.4 ± 6.0 pg/ml, respectively). A similar distribution was observed for miR-155 levels in asymptomatic hyperuricemia, patients with gout, and controls (mean ± SD 0.22 ± 0.18, 0.20 ± 0.14, and 0.08 ± 0.04, respectively). Associations between morphostructural abnormalities suggestive of urate deposits (regardless of clinical diagnosis) and serum markers were assessed. Subjects with urate deposits had higher IL-6 (257.2 versus 47.0 pg/ml; P = 0.005), IL-8 (73.2 versus 12.0 pg/ml; P = 0.026), and miR-155 (0.21 versus 0.16; P = 0.015) levels than those without deposition findings. CONCLUSION: In individuals with chronic asymptomatic hyperuricemia, the presence of synovitis and double contour sign by US may represent a subclinical manifestation of monosodium urate crystal nucleation, capable of triggering inflammatory pathways (IL-6 and IL-8) and mechanisms of intercellular communication (miR-155), similar to what is observed in patients with gout.

Performance of the 2012 Systemic Lupus International Collaborating Clinics and the 1997 American College of Rheumatology classification criteria for systemic lupus erythematosus in a real-life scenario.

OBJECTIVE: To evaluate the performance of the 2012 Systemic Lupus International Collaborating Clinics (SLICC) criteria in classifying systemic lupus erythematosus (SLE) in an uncontrolled real-life scenario. METHODS: Chart review study was performed in which each criterion from the 1997 American College of Rheumatology (ACR) and the 2012 SLICC criteria to classify SLE was applied to patients from an outpatient rheumatology clinic. The clinical diagnosis was used as the gold standard. RESULTS: The sensitivity and specificity of the 2012 SLICC criteria were 92% and 99%, respectively, compared with the 1997 ACR criteria, which were 97% and 99%, respectively. The 2012 SLICC criteria were similar to the 1997 ACR criteria in terms of positive (98.9% versus 99%) and negative (92.5% versus 97.1%) predictive values as well as positive (92 versus 97) and negative (0.08 versus 0.03) likelihood ratios. A concordance of 0.96 (95% confidence interval [95% CI] 0.92­1.00) was observed between clinical diagnosis and the 1997 ACR criteria, while the concordance was 0.91 (95% CI 0.85­0.97) for the 2012 SLICC criteria. Seven SLE patients classified by the 1997 ACR criteria did not meet the 2012 SLICC criteria because of either the new definition for lymphopenia (2 patients) or the presence of isolated cutaneous involvement (5 patients), while 2 SLE patients who were classified by the 2012 SLICC criteria did not meet the 1997 ACR criteria because of either the presence of erosive arthritis or biopsy-proven nephritis with circulating antinuclear antibodies. CONCLUSION: Overall, the 1997 ACR and the 2012 SLICC criteria are similar to classify SLE in an uncontrolled real-life scenario, although several new items contained in the 2012 SLICC criteria could represent a step forward for research purposes in selected clinical settings.

¿Son las lesiones musculares adecuadamente diagnosticadas por ultrasonografía? / Are muscle injury properly diagnosed by ultrasound?

Due to the anatomical distribution and function, striated muscle is susceptible to injury especially traumatic requiring imaging methods for diagnosis, the degree of disease and establish the extent possible recovery time. Ultrasonography is a method that has gained an important place in the evaluation of muscle to be safe, affordable, and by allowing static and dynamic assessment of the muscle. The current classification of muscle injuries seen by Ultrasonography has limitations because it does not allow an adequate correlation between the percentage of condition and prognosis.

Debido a la distribución anatómica y función, el músculo estriado es susceptible de sufrir lesiones sobre todo traumáticas que requieren de métodos de imagen para determinar el diagnóstico, el grado de afección y establecer en la medida de lo posible el tiempo de recuperación. La Ultrasonografía es un método que ha ido ganando un lugar preponderante en la evaluación del músculo por ser inocua, de bajo costo, así como por permitir una evaluación estática y dinámica del músculo. La clasificación actual de lesiones musculares vistas por Ultrasonografía tiene limitantes porque no permite fundamentar una adecuada correlación entre el porcentaje de afección y el pronóstico.

[Bacterial drug resistance and etiology of non-complicated urinary tract infections]. / Patrones de resistencia antimicrobiana y etiología en infecciones urinarias no complicadas.

INTRODUCTION: Bacterial resistance to antibiotics is associated with morbidity, mortality, and an increase in cost. Our objective was to assess bacterial resistance from cultures of patients with non-complicated urinary tract infection (UTI). METHODS: We analyzed antibiotic resistance using the VITEK-II system among patients attending the internal medicine unit with non-complicated UTI. RESULTS: 1,479 urine cultures were performed; we excluded: 98 due to contamination, 924 had no bacterial growth, and 57 had missing data. Among the 404 samples that were positive, 240 were found among out patients and 164 among hospitalized patients. E coli were the most frequent pathogen, followed by Enterococcus, and K pneumonia, in out patients; E coli, P aeruginosa, and fungal infections (23% of cases) in hospitalized patients. Samples with E coli among out patients displayed resistance of 50% to fluoroquinolones and 55% to sulfas. Among hospitalized patients, resistance was observed in 71 and 66% respectively. Resistance to P aeruginosa was 38% for amynoglucosides and carbapenems and 100% for piperacillin; Enterococcus had 50% for fluoroquinolones. CONCLUSION: E. coli is the most common pathogen among UTI patients. We must adapt guidelines to recommend antibiotics and design a comprehensive control program to reduce the high levels of bacterial antibiotic resistance among our population.