Person: Álvarez-Sala Walther, Luis Antonio
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First Name
Luis Antonio
Last Name
Álvarez-Sala Walther
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Medicina
Department
Medicina
Area
Medicina
Identifiers
5 results
Search Results
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Item Diurnal Triglyceridemia in Relation to Alcohol Intake in Men(Nutrients, 2013) Torres do Rego, Ana; Klop, Boudewijn; Birnie, Erwin; Elte, Jan; Cachofeiro Ramos, María Victoria; Álvarez-Sala Walther, Luis Antonio; Cabezas, ManuelFasting and postprandial triglyceride concentrations largely depend on dietary and lifestyle factors. Alcohol intake is associated with triglycerides, but the effect of alcohol on diurnal triglyceridemia in a free living situation is unknown. During three days, 139 men (range: 18–80 years) measured their own capillary triglyceride (cTG) concentrations daily on six fixed time-points before and after meals, and the total daily alcohol intake was recorded. The impact of daily alcohol intake (none; low, <10 g/day; moderate, 10–30 g/day; high, >30 g/day) on diurnal triglyceridemia was analyzed by the incremental area under the cTG curve (∆cTG-AUC) reflecting the mean of the six different time-points. Fasting cTG were similar between the alcohol groups, but a trend of increased cTG was observed in men with moderate and high alcohol intake after dinner and at bedtime (p for trend <0.001) which persisted after adjustment for age, smoking and body mass index. The ∆cTG-AUC was significantly lower in males with low alcohol intake (3.0 ± 1.9 mmol·h/L) (n = 27) compared to males with no (7.0 ± 1.8 mmol·h/L) (n = 34), moderate (6.5 ± 1.8 mmol·h/L) (n = 54) or high alcohol intake (7.2 ± 2.2 mmol·h/L) (n = 24), when adjusted for age, smoking and body mass index (adjusted p value < 0.05). In males, low alcohol intake was associated with decreased diurnal triglyceridemia, whereas moderate and high alcohol intake was associated with increased triglycerides after dinner and at bed time.- Project number: 139
Item Evaluación del profesorado de Medicina en Práctica Clínica(2016) Álvarez-Sala Walther, José Luis; Álvarez-Sala Walther, Luis Antonio; Calvo Manuel, Elpidio; Fernández Galaz, María Del Carmen; García Seoane, Jorge Juan; López Gallardo, Meritxell; Cuadrado Pérez, María De La Luz; Martínez Hernández, David; Millán Núñez-Cortés, Jesús; Ortega Molina, Soledad Paloma; Pérez de Oteiza, Carlos Antonio; Tejedor Jorge, Alberto; Villena Garrido, María Victoria Item Evaluation of simple laboratory parameters in SARS-CoV-2 infection: the role of ratios(Infectious Diseases, 2022) Oblitas, Crhistian Mario; Galeano Valle, Francisco; Álvarez-Sala Walther, Luis Antonio; Demelo Rodríguez, PabloBackground: The real predictive prognostic capacity of cellular indices (or ratios) is unclear in SARS-CoV-2 infection. This study aimed to assess the prognostic role of previously well-known laboratory indices and new ones in hospitalized COVID-19 patients. Methods: A retrospective observational study from March to May 2022 evaluated laboratory indices on admission (neutrophil to lymphocyte-, derived neutrophil to lymphocyte-, platelet to lymphocyte-, CRP to lymphocyte-, CRP to albumin-, fibrinogen to lymphocyte-, d-dimer to lymphocyte-, ferritin to lymphocyte-, LDH to lymphocyte-, and IL-6 to lymphocyte ratios), in patients hospitalized due to SARS-CoV2 infection to determine the association with mortality, admission to an intensive care unit (ICU), need for non-invasive mechanical ventilation (NIMV), orotracheal intubation (OTI), or combined event at 30 days follow-up. Results: A total of 1113 COVID-19 patients were evaluated with a mean age of 64.1 ± 15.9 years (58.49% male), 166 (14.91%) patients died, 58 (5.21%) required ICU admission, 73 (6.56%) needed NIMV, 46 (4.23%) needed OTI, and 247 (22.19%) presented the combined event. All the ratios evaluated in this study showed statistical significance in the univariate analysis for mortality and combined event; however, only d-dimer to lymphocyte ratio >0.6 presented an independent association in the multivariate analysis for 30-day mortality (adjusted OR 2.32; p = .047) and 30-day combined event (adjusted OR 2.62; p = .014). Conclusions: Laboratory indices might be a potential biomarker for better prognosis stratification in hospitalized COVID-19 patients. d-Dimer to lymphocyte ratio presents an independent association for 30-day mortality and 30-day adverse outcomes in hospitalized COVID-19 patients.- Project number: 351
Item Desarrollo de algoritmos predictivos por inteligencia artificial (Deep-learning) para asegurar el éxito del alumno(2021) López Farre, Antonio José; García Fernández, Miguel Ángel; Collado Yurrita, Luis Rodolfo; Álvarez-Sala Walther, Luis Antonio; Zamorano León, José Javier; Calle Purón, María Elisa Marina; Giner Nogueras, Manuel; Lahera Julia, Vicente; Hidalgo Pérez, José Ignacio; Gómez García, María Victoria; Fernández López, María Josefa; Serrano Ruiz Calderón, Rocío Milagros; Hernández Artiles, Marta; Hernández Ramón, Silvia; Freixer Ballesteros, Gala; Zekri, Khaoula; Larrea Cruz, María BegoñaBreve descripción La adaptación de los planes de estudio a la normativa y a los criterios propuestos por el Espacio Europeo de Educación Superior (EEES) ha conllevado un importante reto de innovación pedagógica, y cambios significativos en el proceso enseñanza-aprendizaje. El sistema universitario español acumula ya una trayectoria y un bagaje importante de experiencias, buenas prácticas e innovaciones que se han ido encaminando hacia la continua mejora de la calidad de la formación ofertada. El proceso de cambio en el que está inmersa hoy en día la Educación Superior demanda nuevos sistemas y procedimientos de enseñanza y evaluación. Dos de los cambios derivados de la implantación del EEES son la elaboración de los plantes de estudio por competencias generales, transversales y específicas, y el diseño de herramientas e iniciativas de mejora de la calidad de los programas formativos, entre otros aspectos. En el contexto anterior, en el presente proyecto se han aplicado una serie de herramientas tecnológicas con el objetivo de mejorar la actividad docente que pretenden implantarse de forma transversal entre asignaturas del grado de Nutrición y Dietética Humana de la Facultad de Medicina de la Universidad Complutense. Además, esta novedosa iniciativa podría utilizarse en cualquier asignatura de cualquier grado de cualquier Facultad de la Universidad Complutense o incluso de otras Universidades. En concreto, el proyecto identifica al comienzo del curso académico a aquellos/as alumnos/as que tendrán dificultades para superar diferentes asignaturas del grado de Nutrición y Dietética Humana, para que el profesorado tome diferentes medidas docentes preventivas desde el mismo comienzo del curso académico. La identificación de estos alumnos al comienzo del curso académico se realizó mediante técnicas de inteligencia artificial para generar un algoritmo de predicción autoalimentado, considerando fundamentalmente una serie de parámetros académicos de los alumnos/as. El proyecto busca reforzar el aprendizaje de los/as alumnos/as que presenten dificultades en superar una asignatura. Esta iniciativa Innova-Docencia es una propuesta innovadora, que conlleva la realización de una actividad común en el que han intervenido personal PDI, PAS y estudiantes. Item Inflammatory Biomarkers in the Short-Term Prognosis of Venous Thromboembolism: A Narrative Review(International Journal of Molecular Sciences, 2021) Galeano Valle, Francisco; Ordieres Ortega, Lucía; Oblitas, Crhistian Mario; Toro Cervera, Jorge Del; Álvarez-Sala Walther, Luis Antonio; Demelo Rodríguez, PabloThe relationship between inflammation and venous thrombosis is not well understood. An inflammatory response may be both the cause and consequence of venous thromboembolism (VTE). In fact, several risk factors of VTE modulate thrombosis through inflammatory markers. Acute pulmonary embolism (PE) is burdened by a remarkable mortality rate, up to 34% in severely ill patients presenting with hemodynamic instability. Initial mortality risk stratification is based on hemodynamic instability. Patients with a situation of hemodynamic stability require immediate further risk assessment based on clinical, imaging, and circulating biomarkers, as well as the presence of comorbidities. Some inflammatory biomarkers have shown potential usefulness in the risk stratification of patients with VTE, especially acute PE. C-reactive protein on admission is associated with 30-day mortality and bleeding in VTE patients. P-selectin is associated with right ventricle dysfunction in PE patients and might be associated with VTE recurrences and the extension of thrombosis. Tissue factor microparticles are associated with VTE recurrence in cancer-associated thrombosis. Other inflammatory biomarkers present scarce evidence (inflammatory cytokines, erythrocyte sedimentation rate, fibrinogen, leukocyte count). In this manuscript, we will review the prognostic role of different inflammatory biomarkers available both for clinical practice and research in VTE patients.