Prevalence of sarcopenic obesity according to different diagnostic methods and cut-off points in candidates for bariatric surgery.

BACKGROUND AND AIMS: Sarcopenic obesity (SO) is defined as a combination of low strength and muscle mass along with excess adiposity. Our study aimed to determine the prevalence of sarcopenic obesity in candidates for bariatric surgery, according to ESPEN/EASO criteria using bioimpedance analysis (BIA) and dual-energy X-ray absorptiometry (DXA). METHODS: Retrospective study of adult patients (18-60 years) candidates for bariatric surgery (BMI ≥40 kg/m2 or ≥35 kg/m2 with associated complications). Adiposity was assessed by the percentage of fat mass by DXA, according to Gallagher's cut-off points. Muscle strength was measured by hand grip according to Sánchez-Torralvo, Dodds, and <-2SD cut-off points of healthy reference population. Muscle mass was determined by DXA (ALM/weight according to Batsis) and by BIA (SMM/weight according to Janssen and according to reference population). In addition, the agreement of the different diagnostic methods of sarcopenic obesity was analyzed. RESULTS: A total of 124 subjects were included in the study, with 71.8 % being women. The overall mean age was 42.6 (SD 8.9) years. SO prevalence was found to be 13 %-22 % applying BIA with the SMM/weight equation according to Janssen, 14 %-23 % utilizing BIA with the SMM/weight equation according to the reference population, and 13 %-23 % employing DXA with the ALM/weight equation following Batsis criteria, depending on the specific hand grip strength cut-off points used. In general, we found good or very good concordances with the different diagnostic methods (with kappa values between 0.6 and 0.97). CONCLUSIONS: The prevalence of SO according to ESPEN/EASO criteria in candidates for bariatric surgery was 13 %-23 % based on the diagnostic method and cut-off points used.

Are New Ultra-Rapid-Acting Insulins Associated with Improved Glycemic Control and Reduced Hypoglycemia in Comparison to Conventional Rapid-Acting Insulins for Individuals with Type 1 and Type 2 Diabetes? A Systematic Review and Meta-Analysis.

Introduction: This study aimed to compare efficacy and safety of ultra-rapid-acting insulin analogs (URAIs; faster aspart [FAsp], ultra-rapid lispro [URLi], and technosphere insulin [TI]) with rapid-acting insulin analogs (RAI) in individuals with type 1 (T1D) or type 2 diabetes (T2D). Methods: Searching for randomized control trial comparing the effects of URAI versus RAI that lasted at least 12 weeks, we initially selected 15 studies for analysis. Three studies involving TI were excluded due to a high degree of heterogeneity. The final meta-analysis included only 12 studies with either FAsp or URLi. Results: Mealtime URAI significantly reduced overall early 1 h postprandial glycemia in individuals with T1D (-20.230 mg/dL [95% confidence interval, 95% CI -24.040 to -16.421]; P < 0.001; I2 = 33.42%) and those with T2D (-9.138 mg/dL [95% CI -12.612 to -5.663]; P < 0.001; I2 = 0%). However, the significant reduction in 2 h postprandial glucose remained only in individuals with T1D (-17.620 mg/dL [95% CI -26.047 to -9.193]; P < 0.001; I2 = 65.88%). These benefits were lost when URAI was administered postmeal. At 24-26 weeks, there was no significant difference in HbA1c between groups, but at 52 weeks, a slight reduction in HbA1c with mealtime URAI was observed (-0.080% [95% CI -0.147 to -0.013]; P = 0.019; I2 = 0%). No difference in weight or the rate of severe or confirmed hypoglycemia was observed. Only individuals with T1D showed a small, but significant increase in early 1-h hypoglycemia with URAI (1.468 [95% CI 1.235 to 1.747]; P < 0.001; I2 = 0%). Conclusion: Mealtime URAI improves 1 and 2 h postprandial glycemic control compared to RAI without increasing hypoglycemia or weight gain.

Valoración de la baja masa y fuerza muscular en una población de control / Assessment of low muscle mass and strength in a control population

Introducción y objetivos: la baja masa muscular (BMM) condiciona el estado nutricional de un individuo y tiene implicaciones en la calidad y el pronóstico de vida. El objetivo de este trabajo fue evaluar la composición corporal y determinar los valores de normalidad en el diagnóstico de BMM en un grupo de control de individuos sanos. Material y método: estudio transversal de voluntarios sanos con edades entre 18 y 45 años, con un índice de masa corporal (IMC) < 30 kg/m2. Se realizó un estudio descriptivo incluyendo variables demográficas, clínicas, antropométricas y de composición corporal (mediante bioimpedancia, TANITA MC 780 MA; TANITA, Tokio, Japón), con estratificación por edad, sexo e IMC. Se determinaron los valores correspondientes a -1/-2 desviaciones estándar (DE) para considerar una baja masa/función muscular. Resultados: se incluyeron 67 pacientes, el 71,60 % mujeres, con una mediana de edad de 28,29 (RIC: 4,05) años. Los varones presentan mayor peso, IMC, masa libre de grasa (MLG), masa muscular (MM), masa muscular apendicular (MMA), índice de masa muscular apendicular (IMMA) y dinamometría con respecto a las mujeres. Se determinaron los valores de -1/-2 DE de los distintos parámetros musculares en función del sexo. Conclusiones: este estudio determina los valores normales de BMM en una población sana y joven de nuestro medio, y los índices más empleados para expresarla, lo que permitirá diagnosticar la BMM en situaciones patológicas empleando el valor correspondiente a -2 DE. (AU)

Background and aims: low muscle mass (LMM) conditions the nutritional status of an individual and has implications for quality of life and prognosis. The aim of this study was to evaluate body composition and determine normal values in the diagnosis of LMM in a control group of healthy individuals. Methods: a cross-sectional study of healthy volunteers aged 18 to 45 years with body mass index (BMI) < 30 kg/m2, from January 2021 to October 2021. A descriptive study was performed including demographic, clinical, anthropometric, and body composition variables (by bioimpedance, TANITA MC 780 MA; TANITA, Tokyo, Japan), stratified by age, sex and BMI. Values corresponding to -1/-2 standard deviations (SD) were determined to consider low muscle mass/function. Results: we included 67 patients, 71,60 % women, with a median age of 28.29 (IQR 4.05) years. Males presented higher weight, BMI, fat-free mass (FFM), muscle mass (MM), appendicular lean mass (ALM), appendicular lean mass index (ALMI), and dynamometry values when compared to females. The -1/-2 SD values of the various muscle parameters were determined according to sex. Conclusion: this study determined normal LMM values in healthy and young people, and the most commonly used indexes to express it, which will allow the diagnosis of LMM in disease-related situations using the corresponding -2 DS value. (AU)

Consensus document on the management of hyponatraemia of the Acqua Group of the Spanish Society of Endocrinology and Nutrition.

INTRODUCTION: Hyponatremia is the most prevalent electrolyte disorder in the outpatient and inpatient settings. Despite this frequency, hyponatremia, including severe hyponatremia, is frequently underestimated and inadequately treated, thus highlighting the need to produce consensus documents and clinical practice guidelines geared towards improving the diagnostic and therapeutic approach to it in a structured fashion. MATERIAL AND METHODS: Members of the Acqua Group of the Spanish Society of Endocrinology and Nutrition (SEEN) met using a networking methodology over a period of 20 months (between October 2019 and August 2021) with the aim of discussing and developing an updated guideline for the management of hyponatraemia. A literature search of the available scientific evidence for each section presented in this document was performed. RESULTS: A document with 8 sections was produced, which sets out to provide updated guidance on the most clinically relevant questions in the management of hyponatraemia. The management of severe hyponatraemia is based on the i.v. administration of a 3% hypertonic solution. For the management of chronic euvolemic hyponatraemia, algorithms for the initiation of treatment with the two pharmacological therapeutic options currently available in Spain are presented: urea and tolvaptan. CONCLUSIONS: This document sets out to simplify the approach to and the treatment of hyponatraemia, making it easier to learn and thus improve the clinical approach to hyponatremia.

Increased incidence of Graves' disease during the SARS-CoV2 pandemic.

INTRODUCTION: COVID-19 has a wide spectrum of clinical severity and there is evidence that SARS-Cov2 affects several organs and systems. Among the organs affected since the beginning of the pandemic, the relationship between SARS-CoV-2 infection and thyroid involvement has been demonstrated. Novel and highly effective messenger RNA and DNA-based vaccines have been rapidly developed to decrease SARS-CoV-2 morbidity and mortality. Early after mass vaccinations, cases of thyroid dysfunction mainly including episodes of subacute thyroiditis, began to be reported like adverse effects. The objective of this study is to determine the impact of the pandemic, both due to SARS-CoV2 infections and vaccinations, on the incidence of Graves' disease (GD). METHODS: Cross-sectional, observational study comparing incidence of GD in adult population (over 18 years) before (2017-2019) and after (2020-2021) Covid-19 pandemic. Only patients with new cases of GD, no relapsed diseases, were included. SARS-CoV-2 diagnosis was based on nucleic acid amplification tests on nasopharyngeal swabs or measurement of class M and class G antibodies to SARS-CoV-2 by highly specific assays. Data on incidence and vaccination related to SARS-CoV-2 infection were obtained from the public records from Castilla y León autonomous regional government. RESULTS: A total of 180 subjects were diagnosed and treated for GD during the study period. We observed a notable increase in expected GD cases in 2021 compared to 2017-19. The number of GD cases was higher in the second (Q2) quarter. Among 2021 GD cases, 42/66 patients (63.6%) had been vaccinated in the 90 days before symptom onset, but none of them in the first quarter of the year. A total of 97.7% were women with a mean age of 48.9 (SD 15.6) years. On average they were diagnosed 19.9 (SD 17.6) days after receiving the vaccine. A total of 7/42 (16.67%) had another previously diagnosed autoimmune disease and 11/42 (26.19%) were smokers. DISCUSSION: Our results show a notable increase in the incidence of GD during the year 2021, specially in women with a history of smoking. Hyper activation of the immune system induced by SARS-CoV2 and by the recently released SARS-COV-2 vaccines has been highlighted in recent months. To assess whether this observed increase in the incidence of GD is sustained in the coming years or has simply been a precipitous trigger for individuals who were already predisposed to develop the disease, future studies will be needed.

[Assessment of low muscle mass and strength in a control population]. / Valoración de la baja masa y fuerza muscular en una población de control.

Introduction: Background and aims: low muscle mass (LMM) conditions the nutritional status of an individual and has implications for quality of life and prognosis. The aim of this study was to evaluate body composition and determine normal values in the diagnosis of LMM in a control group of healthy individuals. Methods: a cross-sectional study of healthy volunteers aged 18 to 45 years with body mass index (BMI) < 30 kg/m2. A descriptive study was performed including demographic, clinical, anthropometric, and body composition variables (by bioimpedance, TANITA MC 780 MA; TANITA, Tokyo, Japan), stratified by age, sex and BMI. Values corresponding to -1/-2 standard deviations (SD) were determined to consider low muscle mass/function. Results: we included 67 patients, 71,60 % women, with a median age of 28.29 (IQR 4.05) years. Males presented higher weight, BMI, fat-free mass (FFM), muscle mass (MM), appendicular lean mass (ALM), appendicular lean mass index (ALMI), and dynamometry values when compared to females. The -1/-2 SD values of the various muscle parameters were determined according to sex. Conclusion: this study determined normal LMM values in healthy and young people, and the most commonly used indexes to express it, which will allow the diagnosis of LMM in disease-related situations using the corresponding -2 DS value.

Introducción: Introducción y objetivos: la baja masa muscular (BMM) condiciona el estado nutricional de un individuo y tiene implicaciones en la calidad y el pronóstico de vida. El objetivo de este trabajo fue evaluar la composición corporal y determinar los valores de normalidad en el diagnóstico de BMM en un grupo de control de individuos sanos. Material y método: estudio transversal de voluntarios sanos con edades entre 18 y 45 años, con un índice de masa corporal (IMC) < 30 kg/m2. Se realizó un estudio descriptivo incluyendo variables demográficas, clínicas, antropométricas y de composición corporal (mediante bioimpedancia, TANITA MC 780 MA; TANITA, Tokio, Japón), con estratificación por edad, sexo e IMC. Se determinaron los valores correspondientes a -1/-2 desviaciones estándar (DE) para considerar una baja masa/función muscular. Resultados: se incluyeron 67 pacientes, el 71,60 % mujeres, con una mediana de edad de 28,29 (RIC: 4,05) años. Los varones presentan mayor peso, IMC, masa libre de grasa (MLG), masa muscular (MM), masa muscular apendicular (MMA), índice de masa muscular apendicular (IMMA) y dinamometría con respecto a las mujeres. Se determinaron los valores de -1/-2 DE de los distintos parámetros musculares en función del sexo. Conclusiones: este estudio determina los valores normales de BMM en una población sana y joven de nuestro medio, y los índices más empleados para expresarla, lo que permitirá diagnosticar la BMM en situaciones patológicas empleando el valor correspondiente a -2 DE.

Bioelectrical impedance analysis as an alternative to dual-energy x-ray absorptiometry in the assessment of fat mass and appendicular lean mass in patients with obesity.

OBJECTIVE: Obesity is a challenge for bioelectrical impedance analysis (BIA) estimations of skeletal muscle and fat mass (FM), and none of the equations used for appendicular lean mass (ALM) have been developed for people with obesity. By using different equations and proposing a new equation, this study aimed to assess the estimation of FM and ALM using BIA compared with dual-energy x-ray absorptiometry (DXA) as a reference method in a cohort of people with severe obesity. METHODS: This cross-sectional study compared a multifrequency BIA (TANITA MC-780A) versus DXA for body composition assessment in adult patients with severe obesity (body mass index [BMI] of >35 kg/m2). Comparisons between measured (DXA) and predicted (BIA) data for FM and ALM were performed using the original proprietary equations of the device and the equations proposed by Kyle, Sergi, and Yamada. Bland-Altman plots were drawn to evaluate the agreement between DXA and BIA, calculating bias and limits of agreement (LOA). Reliability was analyzed using intraclass correlation coefficient (ICC). Stepwise multiple regression analysis was used to derive a new equation to predict ALM in patients with obesity and was validated in a subsample of our cohort. RESULTS: In this study, 115 patients (72.4% women) with severe obesity (mean BMI of 46.1 [5.2] kg/m2) were included (mean age 43.5 [8.6] y). FMDXA was 61.4 (10.1) kg, FMBIA was 57.9 (10.3) kg, and ICC was 0.925 (P < 0.001). Bias was -3.4 (4.4) kg (-5.2%), and LOA was -14.0, +7.3 kg. Using the proprietary equations, ALMDXA was 21.8 (4.7) kg and ALMBIA was 29.0 (6.8) kg with an ICC 0.868, bias +7.3 (4.0) kg (+34.1%) and LOA -0.5, +15.1. When applying other equations for ALM, the ICC for Sergi, et al. was 0.880, the ICC for Kyle, et al. was 0.891, and the best ICC estimation for Yamada, et al. was 0.914 (P < 0.001). Bias was +2.8 (2.8), +4.1 (2.9), and +2.7 (2.8) kg, respectively. The best-fitting regression equation to predict ALMDXA in our population derived from a development cohort (n = 77) was: ALM = 13.861 + (0.259 x H2/Z) - (0.085 x age) - (3.983 x sex [0 = men; 1 = women]). When applied to our validation cohort (n = 38), the ICC was 0.864, and the bias was the lowest compared with the rest of the equations +0.3 (+0.5) kg (+2.7%) LOA -5.4, +6.0 kg. CONCLUSION: BIA using multifrequency BIA in people with obesity is reliable enough for the estimation of FM, with good correlation and low bias to DXA. Regarding the estimation of ALM, BIA showed a good correlation with DXA, although it overestimated ALM, especially when proprietary equations were used. The use of equations developed using the same device improved the prediction, and our new equation showed a low bias for ALM.

Diabetes remission after malabsorptive bariatric surgery.

Obesity and diabetes are two closely related disorders. Lifestyle changes and drug treatment do not achieve successful diabetes remission. A treatment option for these patients is bariatric surgery (BS). The partial and complete remission rates vary, depending on the type of technique used (restrictive or malabsorptive), with malabsorptive surgery being more effective in terms of both weight reduction and diabetes remission (DR). Different scales (DiaRem, Ad-DiaRem or 5y-Ad-DiaRem) predict the probability of DR after BS, particularly after gastric bypass surgery. Some studies report higher DR rates in surgery with a greater malabsorptive component. Our aim was to study the benefits of BS at one year and 5 years in terms of the weight and blood glucose profile in patients with obesity and type 2 diabetes mellitus; assess percentage DR according to ADA criteria; determine the DR predictive capacity of different scores; and examine which variables predict DR at one and five years after biliopancreatic diversion (BPD). Percentage overweight reduction and the decrease in both blood glucose and HbA1c were greater with BPD. Complete diabetes remission was approximately 80% at one and 5 years after BS. In general, the scores that determine the probability of DR show poor discriminative capacity in malabsorptive surgery. Presurgery HbA1c predicts DR at one and 5 years after BPD. The type of surgery performed should be individualized, based on the severity of diabetes and the specific characteristics of each patient.

Effects of physical exercise in sarcopenia. A systematic review.

From the third decade of life and due to multiple causes, muscle mass and strength are gradually lost, which affects the function of the musculoskeletal system. This combined loss of muscle mass and strength with aging is called sarcopenia, and is associated with greater morbidity and mortality in the elderly. Early treatment is therefore essential, and physical exercise is the therapeutic approach that has given the best results. This literature review intended to analyze the effect of physical exercise, excluding the role that other treatments proposed, including the nutritional approach, could play in the treatment of sarcopenia, refers to 12 articles. In studies including high intensity strength exercises in isolation, either alone or combined with aerobic exercise, improvements were seen in muscle mass, muscle strength, and functional test times. There is also a significant increase in fat-free mass in individuals who exercised more frequently (more than two sessions per week). Current evidence shows that strength-resistance training and its combination in multimodal programs with aerobic exercise show significantly beneficial effects on anthropometric and muscle function parameters. Programs of prescribed exercises including strength exercises adequate to the characteristics should therefore be adapted to the characteristics of each individual and replace the usual practice of prescribing aerobic exercises (walking) only.

Management of hyponatraemia and hypernatraemia during the Covid-19 pandemic: a consensus statement of the Spanish Society for Endocrinology (Acqua Neuroendocrinology Group).

SARS-COV2 infection has swiftly become a pandemic disease of historic relevance and widely variable outcomes. This variable prognosis is related both to uneven damage, among others, to lungs, heart and kidneys, and to a multisystemic inflammatory reaction. All these factors are known to disrupt water balance and potentially induce hyponatraemia or hypernatraemia. Water balance disorders are known mortality and morbidity risk factors in several clinical scenarios and their proper management, though often complex and hazardous, can reduce mortality and length of hospitalization. Clinical uncertainty over COVID-19 outcome, the variety of organs involved in both the infection and water balance and difficulties in clinical examination due to risk of contagion might obstruct proper management of dysnatremic disorders. Thus, the Acqua Neuroendocrinology Group of the Spanish Society for Endocrinology (SEEN) has endeavoured to provide evidence and expert based recommendations on the management of hyponatraemia and hypernatraemia in COVID-19 patients.

Diabetes remission after malabsorptive bariatric surgery. / Remisión de diabetes tras cirugía bariátrica malabsortiva.

Obesity and diabetes are two closely related disorders. Lifestyle changes and drug treatment do not achieve successful diabetes remission. A treatment option for these patients is bariatric surgery (BS). The partial and complete remission rates vary, depending on the type of technique used (restrictive or malabsorptive), with malabsorptive surgery being more effective in terms of both weight reduction and diabetes remission (DR). Different scales (DiaRem, Ad-DiaRem or 5y-Ad-DiaRem) predict the probability of DR after BS, particularly after gastric bypass surgery. Some studies report higher DR rates in surgery with a greater malabsorptive component. Our aim was to study the benefits of BS at one year and 5 years in terms of the weight and blood glucose profile in patients with obesity and type 2 diabetes mellitus; assess percentage DR according to ADA criteria; determine the DR predictive capacity of different scores; and examine which variables predict DR at one and five years after biliopancreatic diversion (BPD). Percentage overweight reduction and the decrease in both blood glucose and HbA1c were greater with BPD. Complete diabetes remission was approximately 80% at one and 5 years after BS. In general, the scores that determine the probability of DR show poor discriminative capacity in malabsorptive surgery. Presurgery HbA1c predicts DR at one and 5 years after BPD. The type of surgery performed should be individualized, based on the severity of diabetes and the specific characteristics of each patient.

Effects of physical exercise in sarcopenia. A systematic review. / Efectos del ejercicio físico en el anciano con sarcopenia. Una revisión sistemática.

From the third decade of life and due to multiple causes, muscle mass and strength are gradually lost, which affects the function of the musculoskeletal system. This combined loss of muscle mass and strength with aging is called sarcopenia, and is associated with greater morbidity and mortality in the elderly. Early treatment is therefore essential, and physical exercise is the therapeutic approach that has given the best results. This literature review intended to analyze the effect of physical exercise, excluding the role that other treatments proposed, including the nutritional approach, could play in the treatment of sarcopenia, refers to 12 articles. In studies including high intensity strength exercises in isolation, either alone or combined with aerobic exercise, improvements were seen in muscle mass, muscle strength, and functional test times. There is also a significant increase in fat-free mass in individuals who exercised more frequently (more than two sessions per week). Current evidence shows that strength-resistance training and its combination in multimodal programs with aerobic exercise show significantly beneficial effects on anthropometric and muscle function parameters. Programs of prescribed exercises including strength exercises adequate to the characteristics should therefore be adapted to the characteristics of each individual and replace the usual practice of prescribing aerobic exercises (walking) only.

La divulgación científica en los tiempos de Twitter / Scientific dissemination in the Twitter era

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Persiguiendo la desnutrición relacionada con la enfermedad mediante herramientas de big data / Searching for disease-related malnutrition using Big Data tools

INTRODUCCIÓN: La desnutrición relacionada con la enfermedad (DRE) está infradiagnosticada e infrarreportada, a pesar de su asociación con un peor pronóstico. La irrupción del big data y la inteligencia artificial aplicada en medicina ha revolucionado la forma de generar conocimiento. El presente estudio tiene como objetivo valorar si una herramienta de big data podría ayudarnos a detectar y conocer la DRE en nuestro hospital. METODOLOGÍA: Estudio retrospectivo descriptivo, utilizando la herramienta Savana Manager®, que permite analizar y extraer de forma automática la información clínica relevante contenida en el texto libre de la historia clínica electrónica. Se realiza una búsqueda con el término «desnutrición», comparando las características de los pacientes con DRE frente a la población de pacientes hospitalizados en el periodo comprendido entre enero de 2012 y diciembre de 2017. RESULTADOS: De 180.279 registros de hospitalización con informe de alta en dicho periodo, solo 4.446 episodios (2,47%) incluían el diagnóstico de desnutrición. La edad media de los pacientes con DRE fue 75 años (DE 16) frente a 59 (DE 25) años de la población global. No hubo diferencias en género (51% varones). El fallecimiento intrahospitalario se produjo en el 7,08% de los pacientes con DRE frente al 2,98% en el grupo general. La estancia mediana fue superior en los pacientes con DRE (8 vs. 5 días, p < 0,0001) y no hubo diferencias significativas en la tasa de reingresos a 72horas. Los diagnósticos más frecuentes asociados a DRE fueron insuficiencia cardíaca (35%), infección respiratoria (23%), infección urinaria (20%) y enfermedad renal crónica (15%). CONCLUSIÓN: El infradiagnóstico de la DRE sigue siendo un problema. Savana Manager® ayuda a conocer mejor el perfil de estos pacientes

INTRODUCTION: Disease-related malnutrition (DRM) is underdiagnosed and underreported despite its well-known association with a worse prognosis. The emergence of Big Data and the application of artificial intelligence in Medicine have revolutionized the way knowledge is generated. The aim of this study is to assess whether a Big Data tool could help us detect the amount of DRM in our hospital. METHODOLOGY: This was a descriptive, retrospective study using the Savana Manager® tool, which allows for automatically analyzing and extracting the relevant clinical information contained in the free text of the electronic medical record. A search was performed using the term "malnutrition", comparing the characteristics of patients with DRM to the population of hospitalized patients between January 2012 and December 2017. RESULTS: Among the 180,279 hospitalization records with a discharge report in that period, only 4,446 episodes (2.47%) included the diagnosis of malnutrition. The mean age of patients with DRM was 75 years (SD 16), as compared to 59 years (SD 25) for the overall population. There were no sex differences (51% male). In-hospital death occurred in 7.08% of patients with DRM and 2.98% in the overall group. Mean stay was longer in patients with DRM (8 vs. 5 days, P<.0001) and there were no significant differences in the 72-hour readmission rate. The most common diagnoses associated with DRM were heart failure (35%), respiratory infection (23%), urinary infection (20%), and chronic kidney disease (15%). CONCLUSIÓN: Underdiagnosis of DRM remains a problem. Savana Manager® helps us to better understand the profile of these patients

Searching for disease-related malnutrition using Big Data tools. / Persiguiendo la desnutrición relacionada con la enfermedad mediante herramientas de big data.

INTRODUCTION: Disease-related malnutrition (DRM) is underdiagnosed and underreported despite its well-known association with a worse prognosis. The emergence of Big Data and the application of artificial intelligence in Medicine have revolutionized the way knowledge is generated. The aim of this study is to assess whether a Big Data tool could help us detect the amount of DRM in our hospital. METHODOLOGY: This was a descriptive, retrospective study using the Savana Manager® tool, which allows for automatically analyzing and extracting the relevant clinical information contained in the free text of the electronic medical record. A search was performed using the term "malnutrition", comparing the characteristics of patients with DRM to the population of hospitalized patients between January 2012 and December 2017. RESULTS: Among the 180,279 hospitalization records with a discharge report in that period, only 4,446 episodes (2.47%) included the diagnosis of malnutrition. The mean age of patients with DRM was 75 years (SD 16), as compared to 59 years (SD 25) for the overall population. There were no sex differences (51% male). In-hospital death occurred in 7.08% of patients with DRM and 2.98% in the overall group. Mean stay was longer in patients with DRM (8 vs. 5 days, P<.0001) and there were no significant differences in the 72-hour readmission rate. The most common diagnoses associated with DRM were heart failure (35%), respiratory infection (23%), urinary infection (20%), and chronic kidney disease (15%). CONCLUSION: Underdiagnosis of DRM remains a problem. Savana Manager® helps us to better understand the profile of these patients.

Clinical experience with Tolvaptan outpatient use. Cost and effectiveness in 9 cases.

INTRODUCTION: Tolvaptan introduction has constituted the main therapeutic novelty in the management of hyponatremia in recent years. OBJECTIVE: To describe the experience with this drug at Complejo Asistencial Universitario de León, Spain. METHOD: Retrospective, observational study of tolvaptan outpatient use in a tertiary care hospital from March 2014 to August 2017. RESULTS: A total of 9 patients were treated with tolvaptan in the outpatient setting. Eunatremia was reached in 24 h by 23.1%. After tolvaptan administration, a reduction in days of hospitalization was recorded (361 vs. 70; p = 0.007), especially in those days of hospitalization that were attributable to hyponatremia (306 vs. 49; p = 0.009). CONCLUSIONS: Long-term use of tolvaptan appears to be safe and is associated with a decrease in days of hospitalization.

INTRODUCCIÓN: La introducción de tolvaptan ha supuesto la principal novedad en el tratamiento de la hiponatremia en los últimos años. OBJETIVO: Describir la experiencia con tolvaptan en el Complejo Asistencial Universitario de León, España. MÉTODO: Estudio observacional retrospectivo de utilización ambulatoria de tolvaptan en un hospital de tercer nivel, de marzo de 2014 a agosto de 2017. RESULTADOS: Fueron tratados con tolvaptan de forma ambulatoria nueve pacientes, 23.1 % alcanzó eunatremia en 24 horas. Posterior a la administración de tolvaptan se registró reducción en días de hospitalización (361 versus 70, p = 0.007), especialmente por hiponatremia (306 versus 49, p = 0.009). CONCLUSIONES: El uso a largo plazo de tolvaptan parece ser seguro y se relaciona con descenso en los días de hospitalización.

Experiencia clínica con el uso ambulatorio de tolvaptan. Costes y efectividad en nueve casos / Clinical experience with Tolvaptan outpatient use. Cost and effectiveness in 9 cases

Resumen Introducción: La introducción de tolvaptan ha supuesto la principal novedad en el tratamiento de la hiponatremia en los últimos años. Objetivo: Describir la experiencia con tolvaptan en el Complejo Asistencial Universitario de León, España. Método: Estudio observacional retrospectivo de utilización ambulatoria de tolvaptan en un hospital de tercer nivel, de marzo de 2014 a agosto de 2017. Resultados: Fueron tratados con tolvaptan de forma ambulatoria nueve pacientes, 23.1 % alcanzó eunatremia en 24 horas. Posterior a la administración de tolvaptan se registró reducción en días de hospitalización (361 versus 70, p = 0.007), especialmente por hiponatremia (306 versus 49, p = 0.009). Conclusiones: El uso a largo plazo de tolvaptan parece ser seguro y se relaciona con descenso en los días de hospitalización.

Abstract Introduction: Tolvaptan introduction has constituted the main therapeutic novelty in the management of hyponatremia in recent years. Objective: To describe the experience with this drug at Complejo Asistencial Universitario de León, Spain. Method: Retrospective, observational study of tolvaptan outpatient use in a tertiary care hospital from March 2014 to August 2017. Results: A total of 9 patients were treated with tolvaptan in the outpatient setting. Eunatremia was reached in 24 h by 23.1%. After tolvaptan administration, a reduction in days of hospitalization was recorded (361 vs. 70; p = 0.007), especially in those days of hospitalization that were attributable to hyponatremia (306 vs. 49; p = 0.009). Conclusions: Long-term use of tolvaptan appears to be safe and is associated with a decrease in days of hospitalization.

Postoperative enteral immunonutrition in head and neck cancer patients: Impact on clinical outcomes / Uso de inmunonutrición enteral en el postoperatorio de pacientes con cáncer de cabeza y cuello: impacto en los resultados clínicos

Background: Head and neck cancer patients have a high rate of complications during the postoperative period that could increase their morbidity rate. Arginine has been shown to improve healing and to modulate inflammation and immune response. The aim of our study was to assess whether use of arginine-enriched enteral formulas could decrease fistulas and length of stay (LoS). Methods. A retrospective study was conducted in patients who had undergone head and neck cancer surgery and were receiving enteral nutrition through a nasogastric tube in the postoperative period between January 2012 and May 2018. The differences associated to use of immunoformula vs. standard formulas were analysed. Sociodemographic, anthropometric, and nutritional intervention variables, as well as nutritional parameters, were recorded during the early postoperative period. Occurrence of complications (fistulas), length of hospital stay, readmissions, and 90-day mortality were recorded. Results: In a univariate analysis, patients who received nutritional support with immunonutrition had a lower fistula occurrence rate (17.91% vs. 32.84%; p = 0.047) and a shorter mean LoS [28.25 (SD 16.11) vs. 35.50 (SD 25.73) days; p = 0.030]. After adjusting for age, energy intake, aggressiveness of surgery and tumour stage, fistula occurrence rate and LoS were similar in both groups irrespective of the type of formula. Conclusions: Use of arginine-enriched enteral nutrition appears to decrease the occurrence of fistulas in the postoperative period in patients with head and neck cancer, with a resultant reduction in length of hospital stay. However, the differences disappeared after adjusting for age, tumour stage, or aggressiveness of the surgery

Introducción: El postoperatorio de los pacientes con cáncer de cabeza y cuello presenta una alta tasa de complicaciones. Esta circunstancia podría aumentar la morbilidad en estos pacientes. La arginina ha demostrado mejorar la curación y modular la inflamación y la respuesta inmune. Nuestro planteamiento es valorar si el uso de fórmulas de alimentación enteral enriquecidas con arginina podría reducir la aparición de fístulas y la duración de la estancia hospitalaria. Métodos: Estudio retrospectivo en pacientes intervenidos de cáncer de cabeza y cuello que recibieron nutrición enteral a través de una sonda nasogástrica en el periodo postoperatorio entre enero de 2012 y mayo de 2018. Se analizaron las diferencias asociadas a la utilización de inmunofórmula vs. fórmulas estándar. Se recogieron variables sociodemográficas, antropométricas, de intervención nutricional y de parámetros nutricionales durante el postoperatorio inmediato, así como la aparición de complicaciones (fístulas), la duración de la estancia hospitalaria, los reingresos y la mortalidad a 90 días. Resultados: En el análisis univariante los pacientes que recibieron apoyo nutricional con inmunonutrición presentaron menor tasa de aparición de fístulas (17,91 vs. 32,84%; p = 0,047) y menor estancia hospitalaria (28,25 [DE 16,11] vs. 35,50 [DE 25,73] días; p = 0,030). Después de ajustar por edad, aporte calórico, agresividad de la cirugía y estadio del tumor, la incidencia de fístula y la estancia hospitalaria fueron similares entre los grupos, independientemente del tipo de fórmula. Conclusiones: El uso de nutrición enteral enriquecida con arginina en pacientes con cáncer de cabeza y cuello intervenidos podría reducir el desarrollo de la fístula y la duración de la estancia hospitalaria; sin embargo, las diferencias observadas desaparecen después de ajustar por edad, estadio tumoral o agresividad de la cirugía