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1.
Gastroenterol Hepatol ; 45(6): 440-449, 2022.
Article in English, Spanish | MEDLINE | ID: mdl-34400187

ABSTRACT

BACKGROUND AND STUDY AIMS: Data from Japanese series show that surface morphology of laterally spreading tumors (LST) in the colon identifies lesions with different incidence and pattern of submucosal invasion. Such data from western countries are scarce. We compared clinical and histological features of LST in a western country and an eastern country, with special interest on mucosal invasiveness of LST, and investigated the effect of clinical factors on invasiveness in both countries. PATIENTS AND METHODS: Patients with LST lesions ≥20mm were included from a multicenter prospective registry in Spain and from a retrospective registry from the National Cancer Center Hospital East, Japan. The primary outcome was the presence of submucosal invasion in LST. The secondary outcome was the presence of high-risk histology, defined as high-grade dysplasia or submucosal invasion. RESULTS: We evaluated 1102 patients in Spain and 663 in Japan. Morphological and histological characteristics differed. The prevalence of submucosal invasion in Japan was six-fold the prevalence in Spain (Prevalence Ratio PR=5.66; 95%CI: 3.96, 8.08), and the prevalence of high-risk histology was 1.5 higher (PR=1.44; 95%CI: 1.31, 1.58). Compared to the granular homogeneous type and adjusted by clinical features, granular mixed, flat elevated, and pseudo-depressed types were associated with higher odds of submucosal invasion in Japan, whereas only the pseudo-depressed type showed higher risk in Spain. Regarding high-risk histology, both granular mixed and pseudo-depressed were associated with higher odds in Japan, compared with only the granular mixed type in Spain. CONCLUSION: This study reveals differences in location, morphology and invasiveness of LST in an eastern and a western cohort.


Subject(s)
Colonoscopy , Colorectal Neoplasms , Colorectal Neoplasms/epidemiology , Colorectal Neoplasms/pathology , Humans , Intestinal Mucosa/pathology , Neoplasm Invasiveness/pathology , Retrospective Studies
2.
Math Biosci Eng ; 18(5): 4961-4970, 2021 06 07.
Article in English | MEDLINE | ID: mdl-34517472

ABSTRACT

This study developed a method to approximate the covariance matrix associated with the simulation of water molecular diffusion inside the brain tissue. The computation implements the Discontinuous Galerkin method of the diffusion equation. A physically consistent numerical flux is applied to model the interaction between the axon walls and extracellular regions. This numerical flux yields an efficient GPU-CUDA implementation. We consider the two-dimensional case of high axon pack density, valid, for instance, in the brain's corpus callosum region.


Subject(s)
Brain , Diffusion Magnetic Resonance Imaging , Axons , Computer Simulation , Corpus Callosum
3.
Rev. colomb. biotecnol ; 22(1): 79-86, ene.-jun. 2020. graf
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1115574

ABSTRACT

RESUMEN La batata (Ipomoea batatas L.) se cultiva en todo el mundo como fuente de carbohidratos, y su producción comercial requiere un alto aporte de fertilizantes químicos, lo cual eleva los costos de producción. Los inoculantes microbianos, se emplean como una fuente alternativa de nutrición vegetal. El objetivo de esta investigación fue evaluar el efecto de Pseudomonas denitrificans IBVS2 y Azotobacter vinelandii IBVS13 con diferentes niveles fertilización química nitrogenada en el cultivo de batata en la microrregión del Valle del Sinú en el Caribe Colombiano. Para los montajes de los experimentos se utilizó un diseño completamente aleatorizado, ocho tratamientos y tres repeticiones usando como material vegetal plántulas obtenidas in vitro endurecidas en invernadero. Los resultados demostraron que la cepa Azotobacter vinelandii IBVS13 con un 75% de fertilización nitrogenada (FN) mejoró la capacidad de acumulación de materia seca en los tubérculos de batata, generando incrementos de 6,65 t/ha respecto al testigo químico y 3,18 t/ha en relación con el testigo absoluto, garantizando un incremento del rendimiento. Así mismo, el contenido de proteína bruta aumentó 13,93% al realizar la inoculación de las plantas con esta cepa. En el mismo sentido, la cepa Pseudomonas denitrificans IBVS2+ fertilización nitrogenada 50% presentó aumentos en la variable de fibra cruda 31,75% respecto al testigo absoluto, contribuyendo de manera eficaz como bioestimulante microbiano en la agricultura.


ABSTRACT Sweet potatoes (Ipomoea batatas L.) are grown worldwide as a source of carbohydrates, and their commercial production requires a high contribution of chemical fertilizers, which increases production costs. Microbial inoculants are used as an alternative source of plant nutrition. The objective of this research was to evaluate the effect of Pseudomonas denitrificans IBVS2 and Azotobacter vinelandii IBVS13 with different levels of nitrogen chemical fertilization in the sweet potato crop in the microregion of the Sinú Valley in the Colombian Caribbean. A completely randomized design was used for the experiment development, eight treatments was evaluated and three repetitions were carried out. In vitro hardened seedlings was used as a plant material. The results showed that the Azotobacter vinelandii IBVS1 3 strain with 75% nitrogen fertilization (FM) improved the accumulation capacity of dry matter in sweet potato roots, generating increases of 6.65 t / ha compared to the chemical control and 3.18 t / ha in relation to the absolute control, guaranteeing an increase in yield. The crude protein content was increased in 13.93% when inoculating the plants with this strain. In the same way, with the inoculation of strain Pseudomonas denitrificans IBVS2 + 50% nitrogen fertilization the crude fiber variable was increased in 31.75% compared to the absolute control, contributing effectively as a microbial biostimulant in agriculture.

4.
Gastrointest Endosc ; 91(4): 868-878.e3, 2020 04.
Article in English | MEDLINE | ID: mdl-31655045

ABSTRACT

BACKGROUND AND AIMS: The Endoscopic Resection Group of the Spanish Society of Endoscopy (GSEED-RE) model and the Australian Colonic Endoscopic Resection (ACER) model were proposed to predict delayed bleeding (DB) after EMR of large superficial colorectal lesions, but neither has been validated. We validated and updated these models. METHODS: A multicenter cohort study was performed in patients with nonpedunculated lesions ≥20 mm removed by EMR. We assessed the discrimination and calibration of the GSEED-RE and ACER models. Difficulty performing EMR was subjectively categorized as low, medium, or high. We created a new model, including factors associated with DB in 3 cohort studies. RESULTS: DB occurred in 45 of 1034 EMRs (4.5%); it was associated with proximal location (odds ratio [OR], 2.84; 95% confidence interval [CI], 1.31-6.16), antiplatelet agents (OR, 2.51; 95% CI, .99-6.34) or anticoagulants (OR, 4.54; 95% CI, 2.14-9.63), difficulty of EMR (OR, 3.23; 95% CI, 1.41-7.40), and comorbidity (OR, 2.11; 95% CI, .99-4.47). The GSEED-RE and ACER models did not accurately predict DB. Re-estimation and recalibration yielded acceptable results (GSEED-RE area under the curve [AUC], .64 [95% CI, .54-.74]; ACER AUC, .65 [95% CI, .57-.73]). We used lesion size, proximal location, comorbidity, and antiplatelet or anticoagulant therapy to generate a new model, the GSEED-RE2, which achieved higher AUC values (.69-.73; 95% CI, .59-.80) and exhibited lower susceptibility to changes among datasets. CONCLUSIONS: The updated GSEED-RE and ACER models achieved acceptable prediction levels of DB. The GSEED-RE2 model may achieve better prediction results and could be used to guide the management of patients after validation by other external groups. (Clinical trial registration number: NCT03050333.).


Subject(s)
Endoscopic Mucosal Resection , Australia , Cohort Studies , Colonoscopy , Colorectal Neoplasms/surgery , Humans , Risk Factors
5.
Cir. Esp. (Ed. impr.) ; 97(7): 397-404, ago.-sept. 2019. tab, graf
Article in Spanish | IBECS | ID: ibc-187600

ABSTRACT

Objetivo: Evaluar la eficacia, seguridad y resultados clínicos y oncológicos del stent colónico en la estrategia terapéutica inicial de la obstrucción intestinal por cáncer de colon izquierdo. Métodos: Estudio descriptivo y ambispectivo (2008-2018) de pacientes con diagnóstico clínico y radiológico de obstrucción neoplásica de colon izquierdo en los que se indicó colocación de stent, analizando los grupos de stent paliativo, stent como puente a cirugía y cirugía urgente por fallo o complicaciones del stent. Resultados: El estudio incluyó a 208 pacientes. La tasa de éxito técnico y clínico fue del 82,2 y del 74,5%, respectivamente, con perforación asociada en el 4,3% de la muestra. En el 32,2% el stent se comportó como puente a cirugía, mientras que el 28,4% de los pacientes precisaron intervención quirúrgica urgente. En el 39,4% el stent fue colocado con intención paliativa. La proporción de cirugía laparoscópica, resección oncológica, anastomosis primaria y ganglios obtenidos fue superior en los pacientes intervenidos mediante cirugía electiva frente a la urgente, con menor estancia postoperatoria y orbimortalidad postoperatoria grave. Los pacientes en estadio II-III con resección tumoral oncológica intervenidos de forma programada presentaron mayor supervivencia que aquellos intervenidos de urgencia (p = 0,001). Conclusiones: El tratamiento de la oclusión neoplásica de colon izquierdo mediante stent supone una estrategia eficaz para operar de forma electiva un número importante de pacientes y evita la colostomía en pacientes paliativos, aunque las complicaciones o el fracaso de la técnica conllevan cirugía urgente en casi un tercio de los pacientes


Objective: To evaluate the efficacy, safety and clinical and oncological results of colonic stents in the initial therapeutic strategy of obstructive left colon cancer. Methods: Descriptive and ambispective study (2008-2018) of patients with clinical and radiological diagnosis of neoplastic obstruction of the left colon in whom a colonic stent was indicated, analyzing the following groups: palliative stent, stent as bridge to surgery and urgent surgery in case of stent failure or complications. Results: The study included 208 patients. The technical and clinical success rates were 82.2% and 74.5%, respectively, with associated perforation in 4.3% of the sample. In 32.2%, the stent was placed as bridge to surgery, while 28.4% required urgent surgical intervention. The stent was placed with palliative intent in 39.4%. The proportion of laparoscopic surgery, oncological resection, primary anastomosis and lymph nodes resected were higher in patients undergoing elective surgery than in urgent surgery, with shorter postoperative stay and less severe postoperative morbidity and mortality. Stage II-III patients with oncological tumor resection who underwent elective surgery had increased survival compared to those who underwent urgent surgery (P = 0.001). Conclusions: Initial treatment of neoplastic obstruction of the left colon with a stent is an effective strategy in elective surgery and avoids permanent colostomy in palliative patients, although complications or stent failure lead to urgent surgery in almost one-third of patients


Subject(s)
Humans , Male , Female , Middle Aged , Aged , Aged, 80 and over , Colonic Neoplasms/surgery , Intestinal Obstruction/surgery , Stents/adverse effects , Colonic Neoplasms/complications , Colonic Neoplasms/pathology , Cross-Sectional Studies , Intestinal Obstruction/etiology , Laparoscopy/methods , Neoplasm Staging , Palliative Care/methods
7.
J Crit Care ; 53: 59-61, 2019 10.
Article in English | MEDLINE | ID: mdl-31195157

ABSTRACT

OBJECTIVE: To report a successfully treated hyperammonemia due to a portosystemic shunt in adult patient. DATA SOURCE: A patient with an altered mental status due to severe elevated ammonia level because of a portosystemic shunt. CONCLUSIONS: Hyperammonemia is not always related to liver failure in critically ill patients, but should be considered in all unknown origins of an altered mental status. A portosystemic shunt can be the responsible for this phenomenon, and it has a newly treatment technique named plug-assisted retrograde transvenous obliteration (PARTO), which can be quickly performed with high technical success rate and clinical efficacy for the treatment of the splenorenal and/or gastrorenal shunt.


Subject(s)
Hepatic Encephalopathy/diagnosis , Hyperammonemia/diagnosis , Aged , Ammonia/blood , Diagnosis, Differential , Embolization, Therapeutic , Hepatic Encephalopathy/diagnostic imaging , Hepatic Encephalopathy/surgery , Humans , Hyperammonemia/diagnostic imaging , Hyperammonemia/surgery , Male
8.
Cir Esp (Engl Ed) ; 97(7): 397-404, 2019.
Article in English, Spanish | MEDLINE | ID: mdl-31167747

ABSTRACT

OBJECTIVE: To evaluate the efficacy, safety and clinical and oncological results of colonic stents in the initial therapeutic strategy of obstructive left colon cancer. METHODS: Descriptive and ambispective study (2008-2018) of patients with clinical and radiological diagnosis of neoplastic obstruction of the left colon in whom a colonic stent was indicated, analyzing the following groups: palliative stent, stent as bridge to surgery and urgent surgery in case of stent failure or complications. RESULTS: The study included 208 patients. The technical and clinical success rates were 82.2% and 74.5%, respectively, with associated perforation in 4.3% of the sample. In 32.2%, the stent was placed as bridge to surgery, while 28.4% required urgent surgical intervention. The stent was placed with palliative intent in 39.4%. The proportion of laparoscopic surgery, oncological resection, primary anastomosis and lymph nodes resected were higher in patients undergoing elective surgery than in urgent surgery, with shorter postoperative stay and less severe postoperative morbidity and mortality. Stage II-III patients with oncological tumor resection who underwent elective surgery had increased survival compared to those who underwent urgent surgery (P=0.001). CONCLUSIONS: Initial treatment of neoplastic obstruction of the left colon with a stent is an effective strategy in elective surgery and avoids permanent colostomy in palliative patients, although complications or stent failure lead to urgent surgery in almost one-third of patients.


Subject(s)
Colonic Neoplasms/surgery , Intestinal Obstruction/surgery , Stents , Aged , Aged, 80 and over , Colonic Neoplasms/complications , Colonic Neoplasms/pathology , Cross-Sectional Studies , Female , Humans , Intestinal Obstruction/etiology , Laparoscopy/methods , Male , Middle Aged , Neoplasm Staging , Palliative Care/methods , Stents/adverse effects
10.
Gastroenterol. hepatol. (Ed. impr.) ; 41(3): 175-190, mar. 2018. tab
Article in Spanish | IBECS | ID: ibc-171133

ABSTRACT

Este documento resume el contenido de la Guía de resección mucosa endoscópica elaborada por el grupo de trabajo de la Sociedad Española de Endoscopia Digestiva (GSEED de Resección Endoscópica) y expone las recomendaciones sobre el manejo endoscópico de las lesiones neoplásicas colorrectales superficiales (AU)


This document summarizes the contents of the Clinical Guidelines for the Endoscopic Mucosal Resection of Non-Pedunculated Colorectal Lesions that was developed by the working group of the Spanish Society of Digestive Endoscopy (GSEED of Endoscopic Resection). This document presents recommendations for the endoscopic management of superficial colorectal neoplastic lesions (AU)


Subject(s)
Humans , Male , Female , Endoscopic Mucosal Resection/methods , Colorectal Neoplasms/diagnostic imaging , Colorectal Neoplasms/surgery , Endoscopic Mucosal Resection/instrumentation , Endoscopic Mucosal Resection/standards , Colorectal Neoplasms/economics
11.
Rev. esp. enferm. dig ; 110(3): 179-194, mar. 2018. tab
Article in Spanish | IBECS | ID: ibc-171520

ABSTRACT

Este documento resume el contenido de la Guía de resección mucosa endoscópica elaborada por el grupo de trabajo de la Sociedad Española de Endoscopia Digestiva (GSEED de Resección Endoscópica) y expone las recomendaciones sobre el manejo endoscópico de las lesiones neoplásicas colorrectales superficiales (AU)


This document summarizes the contents of the Clinical Guidelines for the Endoscopic Mucosal Resection of Non-Pedunculated Colorectal Lesions that was developed by the working group of the Spanish Society of Digestive Endoscopy (GSEED of Endoscopic Resection). This document presents recommendations for the endoscopic management of superficial colorectal neoplastic lesions (AU)


Subject(s)
Humans , Colorectal Neoplasms/surgery , Endoscopy, Gastrointestinal/methods , Endoscopic Mucosal Resection/methods , Intestinal Mucosa/pathology , Peer Review , Patient Selection , Preoperative Care/methods , Colonoscopy/methods
12.
Rev Esp Enferm Dig ; 110(3): 179-194, 2018 Mar.
Article in English | MEDLINE | ID: mdl-29421912

ABSTRACT

This document summarizes the contents of the Clinical Guidelines for the Endoscopic Mucosal Resection of Non-Pedunculated Colorectal Lesions that was developed by the working group of the Spanish Society of Digestive Endoscopy (GSEED of Endoscopic Resection). This document presents recommendations for the endoscopic management of superficial colorectal neoplastic lesions.


Subject(s)
Colorectal Neoplasms/surgery , Colorectal Surgery/methods , Endoscopic Mucosal Resection/methods , Endoscopy, Gastrointestinal/methods , Intestinal Mucosa/surgery , Colonic Diseases/surgery , Colorectal Surgery/standards , Endoscopic Mucosal Resection/standards , Endoscopy, Gastrointestinal/standards , Humans , Rectal Diseases/surgery
13.
Gastroenterol Hepatol ; 41(3): 175-190, 2018 Mar.
Article in English, Spanish | MEDLINE | ID: mdl-29449039

ABSTRACT

This document summarizes the contents of the Clinical Guidelines for the Endoscopic Mucosal Resection of Non-Pedunculated Colorectal Lesions that was developed by the working group of the Spanish Society of Digestive Endoscopy (GSEED of Endoscopic Resection). This document presents recommendations for the endoscopic management of superficial colorectal neoplastic lesions.


Subject(s)
Colorectal Neoplasms/surgery , Endoscopic Mucosal Resection/standards , Humans
14.
Hepatology ; 66(4): 1219-1231, 2017 10.
Article in English | MEDLINE | ID: mdl-28543862

ABSTRACT

Endoscopic variceal ligation plus beta-blockers (EVL+BB) is currently recommended for variceal rebleeding prophylaxis, a recommendation that extends to all patients with cirrhosis with previous variceal bleeding irrespective of prognostic stage. Individualizing patient care is relevant, and in published studies on variceal rebleeding prophylaxis, there is a lack of information regarding response to therapy by prognostic stage. This study aimed at comparing EVL plus BB with monotherapy (EVL or BB) on all-source rebleeding and mortality in patients with cirrhosis and previous variceal bleeding stratified by cirrhosis severity (Child A versus B/C) by means of individual time-to-event patient data meta-analysis from randomized controlled trials. The study used individual data on 389 patients from three trials comparing EVL plus BB versus BB and 416 patients from four trials comparing EVL plus BB versus EVL. Compared with BB alone, EVL plus BB reduced overall rebleeding in Child A (incidence rate ratio 0.40; 95% confidence interval, 0.18-0.89; P = 0.025) but not in Child B/C, without differences in mortality. The effect of EVL on rebleeding was different according to Child (P for interaction <0.001). Conversely, compared with EVL, EVL plus BB reduced rebleeding in both Child A and B/C, with a significant reduction in mortality in Child B/C (incidence rate ratio 0.46; 95% confidence interval, 0.25-0.85; P = 0.013). CONCLUSION: Outcomes of therapies to prevent variceal rebleeding differ depending on cirrhosis severity: in patients with preserved liver function (Child A), combination therapy is recommended because it is more effective in preventing rebleeding, without modifying survival, while in patients with advanced liver failure (Child B/C), EVL alone carries an increased risk of rebleeding and death compared with combination therapy, underlining that BB is the key element of combination therapy. (Hepatology 2017;66:1219-1231).


Subject(s)
Adrenergic beta-Antagonists/therapeutic use , Esophageal and Gastric Varices/complications , Esophagoscopy , Gastrointestinal Hemorrhage/prevention & control , Liver Cirrhosis/complications , Combined Modality Therapy , Gastrointestinal Hemorrhage/etiology , Gastrointestinal Hemorrhage/mortality , Humans , Risk Assessment , Secondary Prevention
15.
Clin Gastroenterol Hepatol ; 14(8): 1140-7, 2016 08.
Article in English | MEDLINE | ID: mdl-27033428

ABSTRACT

BACKGROUND & AIMS: After endoscopic mucosal resection (EMR) of colorectal lesions, delayed bleeding is the most common serious complication, but there are no guidelines for its prevention. We aimed to identify risk factors associated with delayed bleeding that required medical attention after discharge until day 15 and develop a scoring system to identify patients at risk. METHODS: We performed a prospective study of 1214 consecutive patients with nonpedunculated colorectal lesions 20 mm or larger treated by EMR (n = 1255) at 23 hospitals in Spain, from February 2013 through February 2015. Patients were examined 15 days after the procedure, and medical data were collected. We used the data to create a delayed bleeding scoring system, and assigned a weight to each risk factor based on the ß parameter from multivariate logistic regression analysis. Patients were classified as being at low, average, or high risk for delayed bleeding. RESULTS: Delayed bleeding occurred in 46 cases (3.7%, 95% confidence interval, 2.7%-4.9%). In multivariate analysis, factors associated with delayed bleeding included age ≥75 years (odds ratio [OR], 2.36; P < .01), American Society of Anesthesiologist classification scores of III or IV (OR, 1.90; P ≤ .05), aspirin use during EMR (OR, 3.16; P < .05), right-sided lesions (OR, 4.86; P < .01), lesion size ≥40 mm (OR, 1.91; P ≤ .05), and a mucosal gap not closed by hemoclips (OR, 3.63; P ≤ .01). We developed a risk scoring system based on these 6 variables that assigned patients to the low-risk (score, 0-3), average-risk (score, 4-7), or high-risk (score, 8-10) categories with a receiver operating characteristic curve of 0.77 (95% confidence interval, 0.70-0.83). In these groups, the probabilities of delayed bleeding were 0.6%, 5.5%, and 40%, respectively. CONCLUSIONS: The risk of delayed bleeding after EMR of large colorectal lesions is 3.7%. We developed a risk scoring system based on 6 factors that determined the risk for delayed bleeding (receiver operating characteristic curve, 0.77). The factors most strongly associated with delayed bleeding were right-sided lesions, aspirin use, and mucosal defects not closed by hemoclips. Patients considered to be high risk (score, 8-10) had a 40% probability of delayed bleeding.


Subject(s)
Decision Support Techniques , Endoscopic Mucosal Resection/adverse effects , Gastrointestinal Hemorrhage/diagnosis , Gastrointestinal Hemorrhage/pathology , Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Prospective Studies , Risk Assessment , Spain , Young Adult
17.
J Child Neurol ; 31(2): 215-9, 2016 Feb.
Article in English | MEDLINE | ID: mdl-26060307

ABSTRACT

Disease-related mutations in the mitochondrial methionyl-tRNA formyltransferase (MTFMT) gene encoding a critical enzyme for mitochondrial translation have been rarely reported and are described in association with Leigh syndrome and combined oxidative phosphorylation deficiency. Symptoms include developmental delay, followed by ataxia and spasticity manifesting at later stages. A man had a clinical picture suggestive of an acquired demyelinating disease. Brain magnetic resonance imaging (MRI) demonstrated extensive involvement of the optic nerves, cerebral white matter, brain stem, and spinal cord. Whole-exome sequencing detected a pathologic homozygous c.626C>T mutation in the MTFMT gene. These findings expand the clinical features and neuroimaging spectrum associated with MTFMT mutations to include a relapsing-remitting phenotype.


Subject(s)
Hydroxymethyl and Formyl Transferases/deficiency , Hydroxymethyl and Formyl Transferases/genetics , Mitochondrial Diseases/diagnosis , Mitochondrial Diseases/genetics , Brain/pathology , Demyelinating Diseases/diagnosis , Diagnosis, Differential , Follow-Up Studies , Humans , Magnetic Resonance Imaging , Male , Mitochondrial Diseases/pathology , Mutation , Spinal Cord/pathology , Young Adult
18.
Rev. neurol. (Ed. impr.) ; 63(supl.1): 19-26, 2016. tab, graf
Article in Spanish | IBECS | ID: ibc-156432

ABSTRACT

Objetivo. Evaluar la efectividad y seguridad del fingolimod en la práctica clínica habitual en la región de Asturias y Cantabria (España). Pacientes y métodos. Estudio retrospectivo y multicéntrico de pacientes con esclerosis múltiple recurrente remitente tratados con fingolimod, según la ficha técnica. La efectividad se evaluó en los pacientes con al menos un año de tratamiento. Se calculó la tasa anualizada de brotes (TAB), el porcentaje de pacientes libres de brotes y libres de lesiones captantes de gadolinio, y los que mejoraron/mantuvieron la puntuación en la escala expandida del estado de discapacidad (EDSS). Se analizó la población total y según el tratamiento previo: inmunomodulador (interferón beta-1 o acetato de glatiramero) o natalizumab. Resultados. Un total de 138 pacientes iniciaron tratamiento con fingolimod; el 60% recibió previamente inmunomodulador; el 28%, natalizumab; y el 9%, ningún tratamiento. Noventa y nueve pacientes estuvieron al menos un año en tratamiento con fingolimod. Después de un año de tratamiento, el fingolimod disminuyó la TAB en un 67% (1,26 a 0,42; p < 0,0001), aumentó el porcentaje de pacientes libres de brotes de un 24% a un 69% (p < 0,0001), y el porcentaje de pacientes libres de lesiones captantes de gadolinio de un 70% a un 85% (p < 0,0106). El 77% de los pacientes mejoró/mantuvo la puntuación en la EDSS. Resultados similares se observaron en pacientes tratados previamente con inmunomodulador. La efectividad de los pacientes tratados previamente con natalizumab se mantuvo tras el tratamiento con fingolimod. Conclusiones. La práctica clínica habitual en las regiones de Asturias y Cantabria muestra que el fingolimod tiene resultados similares a los observados en los ensayos clínicos, al comparar las variables clinicorradiológicas utilizadas en estos últimos (AU)


Aim. To evaluate the effectiveness and safety of fingolimod in routine clinical practice in the region of Asturias and Cantabria (Spain). Patients and methods. We conducted a retrospective multicentre study of patients with relapsing-remitting multiple sclerosis treated with fingolimod, in accordance with the product data sheet. Effectiveness was evaluated in patients with at least one year’s treatment. The following were calculated: annualised relapse rate (ARR), the percentage of patients free from relapses and free from gadolinium-enhancing lesions, and those who improved/maintained their score on the Expanded Disability Status Scale (EDSS). Both total population and according to previous treatment: immunomodulator (interferon beta-1 or glatiramer acetate) or natalizumab, were analysed. Results. A total of 138 patients started treatment with fingolimod; 60% previously received an immunomodulator; 28% were given natalizumab; and 9% had no treatment. Ninety-nine patients were treated with fingolimod for at least one year. After one year of treatment, fingolimod decreased the ARR by 67% (1.26 to 0.42; p < 0.0001), increased the percentage of patients free from relapses from 24% to 69% (p < 0.0001) and the percentage of patients free from gadoliniumenhancing lesions from 70% to 85% (p < 0.0106). Altogether, 77% of the patients improved/maintained their score on the EDSS. Similar results were observed in patients previously treated with an immunomodulator. The effectiveness of the patients previously treated with natalizumab remained the same following treatment with fingolimod. Conclusions. Routine clinical practice in the regions of Asturias and Cantabria shows that fingolimod yields similar results to those observed in clinical trials, on comparing the clinicoradiological variables used in them (AU)


Subject(s)
Humans , Male , Female , Fingolimod Hydrochloride/therapeutic use , Drug Evaluation , Fingolimod Hydrochloride/pharmacology , Multiple Sclerosis/drug therapy , Spain , Retrospective Studies
19.
J Comput Chem ; 36(19): 1456-66, 2015 Jul 15.
Article in English | MEDLINE | ID: mdl-26037060

ABSTRACT

A new hierarchical method to determine molecular similarity is introduced. The goal of this method is to detect if a pair of molecules has the same structure by estimating a rigid transformation that aligns the molecules and a correspondence function that matches their atoms. The algorithm firstly detect similarity based on the global spatial structure. If this analysis is not sufficient, the algorithm computes novel local structural rotation-invariant descriptors for the atom neighborhood and uses this information to match atoms. Two strategies (deterministic and stochastic) on the matching based alignment computation are tested. As a result, the atom-matching based on local similarity indexes decreases the number of testing trials and significantly reduces the dimensionality of the Hungarian assignation problem. The experiments on well-known datasets show that our proposal outperforms state-of-the-art methods in terms of the required computational time and accuracy.

20.
Hepatology ; 62(2): 575-83, 2015 Aug.
Article in English | MEDLINE | ID: mdl-25773591

ABSTRACT

UNLABELLED: Recent studies have shown that liver cirrhosis (LC) behaves as an acquired hypercoagulable state with increased thrombotic risk. This is why anticoagulation therapy (AT) is now frequently used in these patients. Variceal bleeding is a severe complication of LC. It is unknown whether AT may impact the outcome of bleeding in these patients. Fifty-two patients on AT with upper gastrointestinal bleeding (UGIB) were evaluated. Portal vein thrombosis (PVT) and different cardiovascular disorders (CVDs) were the indication for AT in 14 and 38 patients, respectively. Overall, 104 patients with LC and UGIB not under AT matched for severity of LC, age, sex, source of bleeding, and Sequential Organ Failure Assessment (SOFA) score served as controls. UGIB was attributed to portal hypertension (PH) in 99 (63%) patients and peptic/vascular lesions in 57 (37%). Twenty-six (17%) patients experienced 5-day failure; SOFA, source of UGIB, and PVT, but not AT, were independent predictors of 5-day failure. In addition, independent predictors of 6-week mortality, which was observed in 26 (11%) patients, were SOFA, Charlson Comorbidity index, and use of AT for a CVD. There were no differences between patients with/without AT in needs for rescue therapies, intensive care unit admission, transfusions, and hospital stay. CONCLUSIONS: Factors that impact the outcome of UGIB in patients under AT are degree of multiorgan failure and comorbidity, but not AT itself.


Subject(s)
Anticoagulants/therapeutic use , Esophageal and Gastric Varices/therapy , Gastrointestinal Hemorrhage/therapy , Liver Cirrhosis/complications , Aged , Analysis of Variance , Chi-Square Distribution , Cohort Studies , Esophageal and Gastric Varices/etiology , Esophageal and Gastric Varices/mortality , Female , Follow-Up Studies , Gastrointestinal Hemorrhage/etiology , Gastrointestinal Hemorrhage/mortality , Hospital Mortality , Humans , Liver Cirrhosis/diagnosis , Logistic Models , Male , Middle Aged , Multivariate Analysis , Reference Values , Retrospective Studies , Risk Assessment , Severity of Illness Index , Survival Analysis , Treatment Outcome
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