Utilización de escalas no invasivas en la detección de varices esofágicas en pacientes con trombosis venosa portal / Use of non-invasive scales for detecting esophageal varices in paediatric patients with portal vein thrombosis

Introducción La trombosis portal (TVP) es la causa más frecuente de hipertensión portal en población pediátrica. El Consenso de Baveno VI considera la ligadura endoscópica de varices como segunda opción terapéutica tras el meso-Rex-bypass (shunt quirúrgico). Objetivo Analizar la rentabilidad diagnóstica de escalas no invasivas para predecir el riesgo de varices esofágicas en niños con TVP. Material y métodos Estudio descriptivo retrospectivo donde se incluyeron endoscopias digestivas altas (EDA) en pacientes<15 años con TVP no cirróticos. Se dividieron según la presencia de varices esofágicas y se estudiaron sexo, etiología, edad, hemorragia digestiva o tratamientos previos, resultados de EDA y las escalas (Regla Predicción Clínica-CPR, Regla Predicción Varices-VPR, King's Variceal Prediction Score-K-VaPS y ratio plaquetas/bazo-RPB). Las variables cualitativas se expresaron mediante frecuencia absoluta y porcentaje, y las cuantitativas mediante mediana y rango intercuartílico. Para las comparaciones se emplearon los test U de Mann-Whitney y Hanley-McNeil. Resultados Se realizaron 45 EDA. Un 80%(n=36) presentaron varices esofágicas: mediana de 3(2 – 3) y un 33,3%(n=12) precisó ligadura endoscópica de varices. Se demostraron diferencias estadísticamente significativas entre ambos grupos: CPR (142,39 [132,22 - 166,53] vs. 122,75 [115,24 – 133,15] p=0,003), VPR (9,91 [9,36 – 11,75] vs. 5,6 [3,34 – 8,39] p=0,001), K-VaPS (117,86 [99,66 - 126,58] vs. 99,64 [94,88 - 110,18] p=0,019), RPB (2384,62 [1902,22 - 3201,63] vs. 1252,5 [579,6 - 2144,42] p=0,05), con un área bajo la curva>75%, sin demostrarse diferencias entre escalas. Conclusiones En pacientes pediátricos con TVP no cirróticos se pueden emplear escalas no invasivas como herramienta para predecir la presencia de VE y plantear con ello la indicación de EDA. (AU)

Introduction Portal vein thrombosis (PVT) is the most frequent cause of portal hypertension in paediatric population. Baveno VI Consensus considers endoscopic variceal ligation as the second therapeutic option after meso-Rex bypass (surgical shunt). Aim Analyse the diagnostic profitability of non-invasive scales in order to predict the risk of oesophageal varices (OV) in children with PVT. Material and methods Descriptive retrospective study where every upper gastrointestinal endoscopy (UGE) carried on patients <15 years old with non-cirrhotic PVT were included. There were divided according to the presence of OV and sex, cause, age, previous gastrointestinal bleeding or treatments, results of UGE and scales (Clinical Prediction Rule – CPR), Varices Prediction Rule – VPR), King's Variceal Prediction Score – K-VaPS) and Platelet count/Spleen diameter Ratio – PSR). Qualitative variables were expressed as absolute frequency and percentage, and quantitative variables as median and interquartile range. U Mann–Whitney and Hanley–McNeil tests were used for comparisons. Results Forty-five UGE were analysed. 80% (n=36) presented OV: median of 3 (2–3) and 33.3% (n=12) required endoscopic variceal ligation. Statistical differences were demonstrated between both groups: CPR (142.39 [132.22-166.53] vs. 122.75 [115.24-133.15]; p=0.003), VPR (9.91 [9.36-11.75] vs. 5.6 [3.34-8.39]; p=0.001), K-VaPS (117.86 [99.66-126.58] vs. 99.64 [94.88-10.18]; p=0.019), PSR (2384.62 [1902.22-3201.63] vs. 1252.5 [579.6-2144.42]; p=0.05), with and area under the curve AUROC>75%, without statistical differences between scales. ConclusionsIn paediatric patients with non-cirrotic PVT non-invasive scales can be used as a tool to predict the presence of OV and raise the indication of UGE. (AU)

Use of non-invasive scales for detecting esophageal varices in paediatric patients with portal vein thrombosis. / Utilización de escalas no invasivas en la detección de varices esofágicas en pacientes con trombosis venosa portal.

INTRODUCTION: Portal vein thrombosis (PVT) is the most frequent cause of portal hypertension in paediatric population. Baveno VI Consensus considers endoscopic variceal ligation as the second therapeutic option after meso-Rex bypass (surgical shunt). AIM: Analyse the diagnostic profitability of non-invasive scales in order to predict the risk of oesophageal varices (OV) in children with PVT. MATERIAL AND METHODS: Descriptive retrospective study where every upper gastrointestinal endoscopy (UGE) carried on patients <15 years old with non-cirrhotic PVT were included. There were divided according to the presence of OV and sex, cause, age, previous gastrointestinal bleeding or treatments, results of UGE and scales (Clinical Prediction Rule - CPR), Varices Prediction Rule - VPR), King's Variceal Prediction Score - K-VaPS) and Platelet count/Spleen diameter Ratio - PSR). Qualitative variables were expressed as absolute frequency and percentage, and quantitative variables as median and interquartile range. U Mann-Whitney and Hanley-McNeil tests were used for comparisons. RESULTS: Forty-five UGE were analysed. 80% (n=36) presented OV: median of 3 (2-3) and 33.3% (n=12) required endoscopic variceal ligation. Statistical differences were demonstrated between both groups: CPR (142.39 [132.22-166.53] vs. 122.75 [115.24-133.15]; p=0.003), VPR (9.91 [9.36-11.75] vs. 5.6 [3.34-8.39]; p=0.001), K-VaPS (117.86 [99.66-126.58] vs. 99.64 [94.88-10.18]; p=0.019), PSR (2384.62 [1902.22-3201.63] vs. 1252.5 [579.6-2144.42]; p=0.05), with and area under the curve AUROC>75%, without statistical differences between scales. CONCLUSIONS: In paediatric patients with non-cirrotic PVT non-invasive scales can be used as a tool to predict the presence of OV and raise the indication of UGE.

Oil price pass-through into inflation in Spain at national and regional level.

Oil price showed sharp fluctuations in recent years which revived the interest in its effect on inflation. In this paper, we discuss the relationship between oil price and inflation in Spain, at national and regional levels, and making the distinction between energy and non-energy inflation. To this end, we fit econometric models to measure the effect of oil price shocks on inflation and to predict them under different scenarios. Our results show that almost half of the volatility of changes in total inflation is explained by changes in oil price. As could be expected, the energy component of inflation drives this effect. We also find that, under the most likely scenarios, 1-year ahead total inflation will be moderate, with relevant differences across regions.

Five-year follow-up of the plaque sealing with paclitaxel-eluting stents vs medical therapy for the treatment of intermediate nonobstructive saphenous vein graft lesions (VELETI) trial.

BACKGROUND: Very few data exist on the long-term follow-up of patients with intermediate nonobstructive saphenous vein graft (SVG) lesions. The purpose of this study was to evaluate the 5-year clinical outcomes of the patients enrolled in the Moderate Vein Graft Lesion Stenting With the Taxus Stent and Intravascular Ultrasound (VELETI) and the factors associated with SVG disease progression and outcomes. METHODS: Patients with ≥ 1 intermediate SVG lesion (30%-60% diameter stenosis) were randomized to either stenting the SVG lesion with a paclitaxel-eluting stent (PES group, n = 30) or to medical treatment alone (MT group, n = 27). All patients were followed yearly up to 5 years. RESULTS: Major adverse cardiac events (MACEs) (cardiac death, myocardial infarction [MI], revascularization) related to the target SVG lesion tended to be lower in the PES group (17% vs 33%; P = 0.146) due to a lower lesion revascularization rate (13% vs 33%; P = 0.072), with no difference in cardiac death or MI between groups. MACEs related to the target SVG and global MACEs were similar between groups (P > 0.20 for both). A higher cholesterol level at baseline was the only independent predictive factor of MACEs related to the target SVG (P = 0.016). CONCLUSIONS: Over a 5-year period, one third of intermediate lesions in old SVGs progressed, leading to a cardiac event. Stenting these lesions with PESs tended to improve clinical outcomes by reducing lesion progression but not SVG failure. Higher cholesterol levels were associated with SVG disease progression and clinical events. This pilot study provides the basis for a larger trial to determine the efficacy of intermediate SVG lesion plaque sealing.

Combined use of pharmacophoric models together with drug metabolism and genotoxicity "in silico" studies in the hit finding process.

In this study we propose a virtual screening strategy based on the generation of a pharmacophore hypothesis, followed by an in silico evaluation of some ADME-TOX properties with the aim to apply it to the hit finding process and, specifically, to characterize new chemical entities with potential to control inflammatory processes mediated by T lymphocytes such as multiple sclerosis, systemic lupus erithematosus or rheumatoid arthritis. As a result, three compounds with completely novel scaffolds were selected as final hits for future hit-to-lead optimization due to their anti-inflammatory profile. The biological results showed that the selected compounds increased the intracellular cAMP levels and inhibited cell proliferation in T lymphocytes. Moreover, two of these compounds were able to increase the production of IL-4, an immunoregulatory cytokine involved in the selective deviation of T helper (Th) immune response Th type 2 (Th2), which has been proved to have anti-inflammatory properties in several animal models for autoimmune pathologies as multiple sclerosis or rheumatoid arthritis. Thus our pharmacological strategy has shown to be useful to find molecules with biological activity to control immune responses involved in many inflammatory disorders. Such promising data suggested that this in silico strategy might be useful as hit finding process for future drug development.