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Summary Background & aims COVID-19 patients present a high hospitalization rate with a high mortality risk for those requiring intensive care. When these patients have other comorbid conditions and older age, the risk for severe disease and poor outcomes after ICU admission are increased. The present work aims to describe the preliminary results of the ongoing NUTRICOVID study about the nutritional and functional status and the quality of life of adult COVID-19 survivors after ICU discharge, emphasizing the in-hospital and discharge situation of this population. Methods A multicenter, ambispective, observational cohort study was conducted in 16 public hospitals of the Community of Madrid with COVID-19 survivors who were admitted to the ICU during the first outbreak. Preliminary results of this study include data retrospectively collected. Malnutrition and sarcopenia were screened at discharge using MUST and SARC-F; the use of healthcare resources was measured as the length of hospital stay and requirement of respiratory support and tracheostomy during hospitalization; other study variables were the need for medical nutritional treatment; and patients’ functional status (Barthel index) and health-related quality of life (EQ-5D-5L). Results A total of 176 patients were included in this preliminary analysis. Most patients were male and older than 60 years, who suffered an average (SD) weight loss of 16.6% (8.3%) during the hospital stay, with a median length of stay of 53 (27–89.5) days and a median ICU stay of 24.5 (11–43.5) days. At discharge, 83.5% and 86.9% of the patients were at risk of malnutrition and sarcopenia, respectively, but only 38% were prescribed medical nutrition therapy. In addition, more than 70% of patients had significant impairment of their mobility and to conduct their usual activities at hospital discharge. Conclusions This preliminary analysis evidences the high nutritional and functional impairment of COVID-19 survivors at hospital discharge and highlights the need for guidelines and systematic protocols, together with appropriate rehabilitation programs, to optimize the nutritional management of these patients after discharge.

BACKGROUND: In patients receiving total parenteral nutrition (TPN), the frequency of hyponatraemia is high. However, the causes of hyponatraemia in TPN have not been elucidated, although diagnosis is required for appropriate therapy. The aim of this study is to describe the aetiology of hyponatraemia in non-critical hospitalised patients receiving TPN. METHODS: Prospective multicentre study in 19 Spanish hospitals. Non-critically hyponatraemic patients receiving TPN and presenting hyponatraemia over a 9-month period were studied. Data collected included sex, age, previous comorbidities, and serum sodium levels (SNa) before and following TPN initiation. Parameters for study of hyponatraemia were also included: clinical volaemia, the presence of pain, nausea, gastrointestinal losses, diuretic use, oedema, renal function, plasma and urine osmolality, urinary electrolytes, cortisolaemia, and thyroid stimulating hormone. RESULTS: 162 patients were included, 53.7% males, age 66.4 (SD13.8) years. Volume status was evaluated in 142 (88%): 21 (14.8%) were hypovolaemic, 96 (67.6%) euvolaemic and 25 (17.6%) hypervolaemic. In 111/142 patients the analytical assessment of hyponatraemia was completed. Hypovolaemic hyponatraemia was secondary to GI losses in 10/111 (9%), and to diuretics in 3/111 (2.7%). Euvolaemic hyponatraemia was due to Syndrome of Inappropriate Antidiuretic Hormone secretion (SIADH) in 47/111 (42.4%), and to physiological stimuli of Arginine Vasopressin (AVP) secretion in 28/111 (25.2%). Hypervolaemic hyponatraemia was induced by heart failure in 19/111 (17.1%), cirrhosis of the liver in 4/111 (3.6%). CONCLUSIONS: SIADH was the most frequent cause of hyponatraemia in patients receiving TPN. The second most frequent cause was physiological stimuli of AVP secretion induced by pain/nausea.

Palliative care provides a holistic approach and care for patients with a terminal illness and their families. In palliative care physical complaints as well as emotional, social and spiritual aspects are considered. Nutritional care should be also considered within palliative support. For those working in the nutritional support field, to withhold or withdraw nutritional support may be an ethical dilemma in this scenario. The controversy starts when considering nutrition and hydration as basic care or a treatment. The goals of nutrition support in palliative care patients differ from common ones, aiming to improve quality of life, survival or both. The decision should be based on a consideration of prognosis (length of survival), quality of life, and risks-benefits ratio. Regarding oral nutrition (with or without oral supplements) the idea prevails of "comfort feeding", based on providing oral feeding till discomfort or avoidance develop. There is no evidence on the benefit of specific nutrients, despite the fact that omega-3 FAs may have some positive effects in patients with cancer. Regarding nutritional support (enteral or parenteral), no scientific evidence is present, so the decision needs to be agreed according to the desires and beliefs of the patient and their family, and based on a consensus with the interdisciplinary team on the aims of this support.Los cuidados paliativos proporcionan una atención integral que tiene en cuenta los aspectos físicos, emocionales, sociales y espirituales del paciente con enfermedad terminal y su entorno familiar. El tratamiento nutricional debe formar parte activa de los equipos de cuidados paliativos. La necesidad de iniciar o no un tratamiento nutricional sigue siendo, desde hace décadas, uno de los principales problemas éticos a los que se enfrentan los profesionales dedicados a la nutrición clínica. El origen de tal controversia radica, fundamentalmente, en cómo se consideran la nutrición y la hidratación: cuidado/soporte o tratamiento médico. Los objetivos fundamentales del tratamiento nutricional en los pacientes en cuidados paliativos deben ser otros: la mejoría de la calidad de vida, de la supervivencia o de ambas. La decisión de indicar o no el tratamiento nutricional en cuidados paliativos debe tomarse tras considerar el pronóstico, la calidad de vida y la relación “riesgo/beneficio”. En relación a la alimentación por vía oral (con o sin suplementos orales), prevalece la idea de la “alimentación de confort”, que se basa en intentos de alimentación oral hasta que se produzcan la incomodidad y/o el rechazo del paciente. No existen evidencias que justifiquen el uso de nutrientes específicos, aunque desde hace años se señala la posibilidad de lograr beneficios cuando se utilizan ácidos grasos omega-3 en los pacientes con cáncer. En cuanto al tratamiento nutricional (enteral o parenteral), en ausencia de evidencia, las decisiones sobre si iniciar una nutrición artificial en un paciente paliativo deben tomarse teniendo en cuenta los deseos y creencias del paciente y sus familiares, y basarse en el consenso del equipo interdisciplinar sobre los objetivos que se persiguen al iniciarla.

Aim: to present the results of the Spanish home enteral nutrition (HEN) registry of the NADYA-SENPE group for the years 2018 and 2019. Material and methods: from January 1, 2018 to December 31, 2019 the home enteral nutrition registry was recorded, and afterwards a further descriptive and analytical analysis was done. Results: in 2018, 4756 active patients were registered and the prevalence was 101.79 patients per one million inhabitants; in 2019 there were 4633 patients with a prevalence of 98.51 patients per one million inhabitants. They originated in 46 hospitals: 51.3 % were male, and median age was 71.0 years in both periods. The most frequent diagnosis was a neurological disorder that presents with aphagia or severe dysphagia - 58.7 % and 58.2 %, respectively. The main cause of episode termination was death. A total of 116 pediatric patients were registered in 2018 and 115 in 2019. Females represented 57.8 % and 59.1 %, respectively, in each of the periods. Median age at the beginning of HEN was 5 and 7 months. The most commonly recordered diagnostic group (42.2 % and 42.6 %) was included within the other pathologies group, followed by neurological disorders that present with aphagia or severe dysphagia in 41.4 % and 41.7 % of children. The route of administration was gastrostomy in 46.6 % and 46.1 %, respectively, in each of the periods. Conclusions: the NED registry of the NADYA-SENPE group continues to operate uninterruptedly since its inception. The number of registered patients and the number of participating hospitals remained stable in the last biennium analyzed.Objetivo: exponer los resultados del registro de nutrición enteral domiciliaria (NED) de los años 2018 y 2019 del Grupo NADYA-SENPE. Material y métodos: se recopilaron los pacientes introducidos en el registro desde el 1 de enero al 31 de diciembre de 2018 y en las mismas fechas para 2019, procediendo al análisis descriptivo y analítico de los datos. Resultados: en el año 2018 se registraron 4756 pacientes activos con una tasa de prevalencia de 101,79 pacientes/millón de habitantes; en 2019 fueron 4633 con una tasa de prevalencia de 98,51 pacientes/millón de habitantes. Procedían de 46 hospitales. Fueron el 51,3 % los varones registrados y la edad mediana fue de 71,0 años en ambos periodos. El diagnóstico más frecuente fue el de enfermedad neurológica que cursa con afagia o disfagia severa (58,7 % y 58,2 %), respectivamente. La causa principal de finalización de los episodios fue el fallecimiento. Los pacientes pediátricos registrados fueron 116 en 2018 y 115 en 2019. Las niñas representaron el 57,8 % y 59,1 %, respectivamente, en cada uno de los periodos. La edad mediana de inicio de la NED fue de 5 y 7 meses. El grupo diagnóstico más registrado (42,2 % y 42,6 %) se englobó dentro del grupo de otras patologías, seguido de la enfermedad neurológica que cursa con afagia o disfagia severa de los niños (41,4 % y 41,7 %). Se alimentaban a través de gastrostomía el 46,6 % y 46,1 %, respectivamente, en cada uno de los periodos. Conclusiones: el registro de NED del grupo NADYA-SENPE sigue operativo de forma ininterrumpida desde sus inicios. El número de pacientes registrados y el de hospitales participantes permanece estable en el último bienio analizado.

Aim: to communicate the home parenteral nutrition (HPN) data obtained from the HPN registry of the NADYA-SENPE group (www.nadya-senpe.com) for the year 2019. Material and methods: a descriptive analysis of the data collected from adult and pediatric patients with HPN in the NADYA-SENPE group registry from January 1 to December 31, 2019. Results: a total of 283 patients (51.9 % women), 31 children, and 252 adults from 47 Spanish hospitals were registered, which represents a prevalence rate of 6.01 patients per million inhabitants for year 2019. The most frequent diagnosis in adults was "palliative oncological" and "others" (21.0 %). In children, it was Hirschsprung's disease together with necrotizing enterocolitis, alterations in intestinal motility, and chronic intestinal pseudo-obstruction, with 4 cases each (12.9 %). The first reason for the indication was short-bowel syndrome in both children (51.6 %) and adults (37.3 %). The most used type of catheter was tunnelled both in children (75.9 %) and in adults (40.8 %). Sixty-eight episodes ended, all in adults, and the most frequent cause was death (54.4 %); 38.2 % were switched to oral. Conclusions: the number of collaborating centers and professionals in the NADYA registry is increasing. The main indications and reasons for HPN termination remain stable.Objetivo: comunicar los datos de nutrición parenteral domiciliaria (NPD) obtenidos del registro del grupo NADYA-SENPE (www.nadya-senpe.com) del año 2019. Material y métodos: análisis descriptivo de los datos recogidos de pacientes adultos y pediátricos con NPD en el registro NADYA-SENPE desde el 1 de enero al 31 de diciembre de 2019. Resultados: se registraron 283 pacientes (51,9 %, mujeres), 31 niños y 252 adultos procedentes de 47 hospitales españoles, lo que representa una tasa de prevalencia de 6,01 pacientes/millón de habitantes/año 2019. El diagnóstico más frecuente en los adultos fue “oncológico paliativo” y “otros” (21,0 %). En los niños fue la enfermedad de Hirschsprung junto a la enterocolitis necrotizante, las alteraciones de la motilidad intestinal y la pseudoobstrucción intestinal crónica, con 4 casos cada uno (12,9 %). El primer motivo de indicación fue el síndrome del intestino corto tanto en los niños (51,6 %) como en los adultos (37,3 %). El tipo de catéter más utilizado fue el tunelizado tanto en los niños (75,9 %) como en los adultos (40,8 %). Finalizaron 68 episodios, todos en adultos: la causa más frecuente fue el fallecimiento (54,4 %). Pasaron a la vía oral el 38,2 %. Conclusiones: el número de centros y profesionales colaboradores con el registro NADYA va incrementándose. Se mantienen estables las principales indicaciones y los motivos de finalización de la NPD.

Aim: To communicate home parenteral nutrition (HPN) data obtained from the HPN registry of the NADYA-SENPE group (www.nadya-senpe. com) for the year 2018. Material and methods: Descriptive analysis of the data collected from adult and pediatric patients with HPN in the NADYA-SENPE group registry from January 1st, 2018 to December 31st, 2018. Results: There were 278 patients from 45 Spanish hospitals (54.7% women), 23 children and 255 adults, which represent a prevalence rate of 5.95 patients/million inhabitants/year 2018. The most frequent diagnosis in adults was “palliative cancer” (22.0%), followed by “others”. In children it was Hirschsprung’s disease together with necrotizing enterocolitis, with four cases (17.4%). The first indication was short bowel syndrome in both children (60.9%) and adults (35.7%). The most frequently used type of catheter was tunneled in both children (81.0%) and adults (41.1%). Ending 75 episodes, the most frequent cause was death (52.0%) and change to oral feeding (33.3%). Conclusions: The number of centers and collaborating professionals in the registry of patients receiving HPN remains stable, as well as the main indications and reasons for termination of HPN., Objetivo: comunicar los datos de nutrición parenteral domiciliaria (NPD) obtenidos del registro del grupo NADYA-SENPE (www.nadyasenpe. com) del año 2018. Material y métodos: análisis descriptivo de los datos recogidos de pacientes adultos y pediátricos con NPD en el registro NADYA-SENPE del 1 de enero al 31 de diciembre de 2018. Resultados: se registraron 278 pacientes (54,7% mujeres), 23 niños y 255 adultos, procedentes de 45 hospitales españoles, lo que representa una tasa de prevalencia de 5,95 pacientes/millón de habitantes/año 2018. El diagnóstico más frecuente en adultos fue “oncológico paliativo” (22,0%), seguido de “otros”. En niños fue la enfermedad de Hirschsprung junto con la enterocolitis necrotizante, con cuatro casos (17,4%). El primer motivo de indicación fue síndrome de intestino corto tanto en niños (60,9%) como en adultos (35,7%). El tipo de catéter más utilizado fue el tunelizado tanto en niños (81,0%) como en adultos (41,1%). Finalizaron 75 episodios, la causa más frecuente fue el fallecimiento (52,0%) y el paso a vía oral (33,3%). Conclusiones: el número de centros y profesionales colaboradores en el registro de pacientes que reciben NPD se mantiene estable, así como las principales indicaciones y los motivos de finalización de la NPD.

Resumen Antecedentes La imprecision en la terminologia dentro de la nutricion clinica puede acarrear malas interpretaciones entre los distintos profesionales. Objetivo Por esta razon, la Sociedad Espanola de Endocrinologia y Nutricion (SEEN) ha promovido la realizacion del presente trabajo, el primero sobre terminologia y definiciones en nutricion artificial clinica (enteral y parenteral) publicado en castellano. Metodos Un total de 47 especialistas en Endocrinologia y Nutricion expertos en la materia, miembros del Area de Nutricion de la SEEN, han participado entre los meses de abril y septiembre de 2016. Tras una revision bibliografica sistematizada fueron propuestos 52 conceptos, ampliandose a 54 por las coordinadoras y finalmente a 57 por el grupo de trabajo: 13 de caracter general, 30 referidos a la nutricion enteral y 14 a la parenteral. En una fase posterior se determino el grado de acuerdo mediante un proceso Delphi de 2 circulaciones. Finalmente fue ratificado mediante un analisis de consistencia y concordancia. Resultados En 54 de los 57 terminos hubo un acuerdo muy consistente y resultaban concordantes. Solo 3 no presentaron concordancia, de los que 2 eran muy consistentes y uno inconsistente. En conclusion, queda consensuada la definicion de 54 terminos basicos en la practica de la nutricion clinica.

This paper from the ethics Working Group presents a summary of the recommendations of the nutritional management of patients with advanced dementia.En este documento del Grupo de Trabajo de Ética se presenta un resumen sobre las recomendaciones del manejo nutricional de pacientes con demencia avanzada.

En este documento del Grupo de Trabajo de Etica se presenta un resumen sobre las recomendaciones del manejo nutricional de pacientes con demencia avanzada.

Resumen Objetivo: exponer los resultados del registro de nutrición enteral domiciliaria (NED) de los años 2016 y 2017 del Grupo NADYA-SENPE. Material y métodos: se recopilaron los pacientes introducidos en el registro del 1 de enero al 31 de diciembre de 2016 y la mismas fechas de 2017 para proceder al análisis descriptivo y analítico de los datos. Resultados: en el año 2016 se obtuvieron 4.578 pacientes activos (prevalencia = 98,33 pacientes/millón de habitantes) y en 2017 fueron 4.777 (prevalencia = 102,57). Por sexos, hubo un 50,8% de varones en 2016 y un 50,5% en 2017. En el periodo 2016-17, la edad mediana fue de 71,5 años (IIQ 57-83); asimismo, finalizaron 1.558 episodios de NED y la causa principal fue el fallecimiento (793 pacientes, 50,89%). Los varones adultos fueron más jóvenes que las mujeres (65,3 vs. 73,3 años, p-valor < 0,001) y el diagnóstico más frecuente fue la enfermedad neurológica que cursa con afagia o disfagia severa (59%). La sonda nasogástrica (SNG) fue la vía de acceso más utilizada (48,3%) y se observa, además, que esta es la vía que se utiliza en los pacientes más ancianos (p < 0,001). Se registraron 126 pacientes pediátricos (57,1% niñas). La edad mediana de inicio de la NED fue de cuatro meses. Otras patologías fue el grupo diagnóstico más registrado (41,3%), seguido por la enfermedad neurológica que cursa con afagia o disfagia severa. Se alimentaban a través de gastrostomía en el 57,6% de los casos. Se observó que los niños más pequeños eran los que se alimentaban preferentemente por SNG (p-valor 0,001). Conclusiones: el número de pacientes del registro, así como el número de centros participantes, se va incrementando progresivamente. Las principales características de los pacientes no han variado. A pesar del aumento de posibilidades diagnósticas en la población pediátrica, llama la atención la clasificación dentro del grupo de Otras patologías.

Malnutrition in hospitalized patients is associated with an increased risk of death, in both the short and the long term.The purpose of this study was to determine which nutrition-related risk index predicts long-term mortality better (three years) in patients who receive total parenteral nutrition (TPN).This prospective, multicenter study involved noncritically ill patients who were prescribed TPN during hospitalization. Data were collected on Subjective Global Assessment (SGA), Nutritional Risk Index (NRI), Geriatric Nutritional Risk Index (GNRI), body mass index, albumin and prealbumin, as well as long-term mortality.Over the 1- and 3-year follow-up periods, 174 and 244 study subjects (28.8% and 40.3%) respectively, died. Based on the Cox proportional hazards survival model, the nutrition-related risk indexes most strongly associated with mortality were SGA and albumin (2.5 g/dL) (after adjustment for age, gender, C-reactive protein levels, prior comorbidity, mean capillary blood glucose during TPN infusion, diabetes status prior to TPN, diagnosis, and infectious complications during hospitalization).The SGA and very low albumin levels are simple tools that predict the risk of long-term mortality better than other tools in noncritically ill patients who receive TPN during hospitalization.

Objective Hypoglycemia is a common problem among hospitalized patients. Treatment of hyperglycemia with insulin is potentially associated with an increased risk for hypoglycemia. The aim of this study was to determine the prevalence and predictors of hypoglycemia (capillary blood glucose Methods This prospective multicenter study involved 19 Spanish hospitals. Noncritically ill adults who were prescribed TPN were included, thus enabling us to collect data on capillary blood glucose and insulin dosage. Results The study included 605 patients of whom 6.8% (n = 41) had at least one capillary blood glucose Conclusions The occurrence of hypoglycemia in noncritically ill patients receiving PN is low. A lower BMI and a greater blood glucose variability and TPN duration are factors associated with the risk for hypoglycemia. IV insulin and glucose variability were predictors of symptomatic hypoglycemia.

Objective The prevalence of carbohydrate metabolism disorders in patients who receive total parenteral nutrition (TPN) is not well known. These disorders can affect the treatment, metabolic control, and prognosis of affected patients. The aims of this study were to determine the prevalence in noncritically ill patients on TPN of diabetes, prediabetes, and stress hyperglycemia; the factors affecting hyperglycemia during TPN; and the insulin therapy provided and the metabolic control achieved. Methods We undertook a prospective multicenter study involving 19 Spanish hospitals. Noncritically ill patients who were prescribed TPN were included, and data were collected on demographic, clinical, and laboratory variables (glycated hemoglobin, C-reactive protein [CRP], capillary blood glucose) as well as insulin treatment. Results The study included 605 patients. Before initiation of TPN, the prevalence of known diabetes was 17.4%, unknown diabetes 4.3%, stress hyperglycemia 7.1%, and prediabetes 27.8%. During TPN therapy, 50.9% of patients had at least one capillary blood glucose of > 180 mg/dL. Predisposing factors were age, levels of CRP and glycated hemoglobin, the presence of diabetes, infectious complications, the number of grams of carbohydrates infused, and the administration of glucose-elevating drugs. Most (71.6%) patients were treated with insulin. The mean capillary blood glucose levels during TPN were: known diabetes (178.6 ± 46.5 mg/dL), unknown diabetes (173.9 ± 51.9), prediabetes (136.0 ± 25.4), stress hyperglycemia (146.0 ± 29.3), and normal (123.2 ± 19.9) (P Conclusion The prevalence of carbohydrate metabolism disorders is very high in noncritically ill patients on TPN. These disorders affect insulin treatment and the degree of metabolic control achieved. (Endocr Pract. 2015;21:59-67)

Imprecision in terms used in the field of clinical nutrition may lead to misinterpretations among professionals.For this reason, the Spanish Society of Endocrinology and Nutrition (SEEN) promoted this document on the terms and definitions used in clinical artificial nutrition (enteral and parenteral), establishing an agreement between Spanish experts of this specialty.Forty-seven specialists in endocrinology and nutrition, members of the Nutrition Area of the SEEN, participated between April and September 2016. After a systematic literature review, 52 concepts were proposed. The coordinators included two additional concepts, and 57were finally selected by the working group: 13 of a general nature, 30 referring to enteral nutrition and 14 to parenteral nutrition. The degree of agreement was subsequently determined using a two-round Delphi process. It was finally ratified by consistency and concordance analysis.Fifty-four of the 57 terms had a very consistent agreement and were concordant. Only three showed no concordance, of whom two were very consistent and one inconsistent. In conclusion, there was consensus in the definition of 54 basic terms in the practice of clinical nutrition.

Objetivo: exponer los resultados del registro de nutrición enteral domiciliaria (NED) del año 2014 y 2015 del Grupo NADYA-SENPE. Métodos: se recopilaron los pacientes introducidos en el registro desde el 1 de enero al 31 de diciembre de 2014 y la mismas fechas de 2015, y se procedió al análisis descriptivo y analítico de los datos. Resultados: en el año 2014, se registraron 3.749 pacientes y en 2015, 4.202; la prevalencia fue de 80,58 pacientes/millón de habitantes en el año 2014 y de 90,51 en 2015. Por sexos, hubo un 49,9% de mujeres en 2014 y un 50,3% en 2015. La edad media fue de 73 años (IIQ 59-83) en ambos años. Finalizaron 684 episodios de NED en 2014 y 631 en 2015, la causa principal fue el fallecimiento en el 54,9% y 50,4% de los casos, respectivamente. Los portadores de sonda nasogástrica presentan una edad media superior a los pacientes con cualquier otra vía (p < 0,001). Se registraron 67 pacientes pediátricos en 2014 (56,7% niñas) y 77 en 2015 (55,8% niñas). La vía principal de administración fue la gastrostomía en el 52,0% de los casos de 2014 y sonda nasogástrica en el 50,8% de los casos de 2015. La causa principal de fi nalización de la nutrición fue el fallecimiento (57,1% en 2014 y 38,5% en 2015). Se observó que los niños más pequeños eran los que se alimentaban preferentemente por SNG (p 0,004 vs. 0,002).Tanto en pacientes pediátricos como en adultos el diagnóstico principal que motivó la necesidad de NED fue la enfermedad neurológica que cursa con afagia o disfagia severa. Conclusiones: se ha incrementado el número de pacientes del registro, así como el número de centros participantes y el número medio de pacientes comunicados por cada centro respecto a años anteriores, sin que se hayan modificado sustancialmente las características de los pacientes, salvo mayor duración de los episodios, Objective: To present the results of the Spanish home enteral nutrition (HEN) registry of the NADYA-SENPE group for the years 2014 and 2015. Methods: From January 1st 2014 to December 31st 2015 the HEN registry was recorded and afterwards a further descriptive and analytical analysis was done. Results: In 2014, 3749 patients were recorded, and 4202 in 2015; prevalence was 80.58 patients/one million inhabitants in Spain in 2014 and 90.51 in 2015. There were 49.9% females in 2014 and 50.3% in 2015. Median age was 73 years (IQI 59-83) in 2014 as well as in 2015. 684 episodes fi nished in 2014 and 631 in 2015, with death as the main cause, in 54.9% and 50.4%, respectively. The ones who were fed through nasogastric tube had a mean age higher than the ones fed by any other route (p-value < 0.001). Sisty-seven paediatric patients were recorded in 2014 (56.7% females) and 77 in 2015 (55.8% females). Median age at the beginning of HEN among children was 5 months in 2014 and 5 months in 2015. The main route of administration was gastrostomy, in 52.5% in 2014 and nasogastric tube in 50.8% in 2015. 7 episodes fi nished in 2014 and 13 in 2015, having death as the main cause (57.1% in 2014 and 38.5% in 2015). It was found that were younger children the ones who were mainly fed by nasogastric tubes (p-value 0.004 vs. 0.002). Among paediatric patients as well as adults, the main diagnosis leading to HEN was neurological disease which gives aphagia or severe dysphagia. Conclusions: There has been an increase in the number of patients in the registry as well as the participating centers and the number of patients per center, without any signifi cant change in the characteristics of the patients other than longer duration of the episodes

OBJECTIVE Hyperglycemia may increase mortality in patients who receive total parenteral nutrition (TPN). However, this has not been well studied in noncritically ill patients (i.e., patients in the nonintensive care unit setting). The aim of this study was to determine whether mean blood glucose level during TPN infusion is associated with increased mortality in noncritically ill hospitalized patients. RESEARCH DESIGN AND METHODS This prospective multicenter study involved 19 Spanish hospitals. Noncritically ill patients who were prescribed TPN were included prospectively, and data were collected on demographic, clinical, and laboratory variables as well as on in-hospital mortality. RESULTS The study included 605 patients (mean age 63.2 ± 15.7 years). The daily mean TPN values were 1.630 ± 323 kcal, 3.2 ± 0.7 g carbohydrates/kg, 1.26 ± 0.3 g amino acids/kg, and 0.9 ± 0.2 g lipids/kg. Multiple logistic regression analysis showed that the patients who had mean blood glucose levels >180 mg/dL during the TPN infusion had a risk of mortality that was 5.6 times greater than those with mean blood glucose levels CONCLUSIONS Hyperglycemia (mean blood glucose level >180 mg/dL) in noncritically ill patients who receive TPN is associated with a higher risk of in-hospital mortality.

Como Coordinadora del Grupo de Ética de la Sociedad Española de Nutrición Clínica y Metabolismo (SENPE), me complace remitirle el documento elaborado por nuestro grupo de trabajo, del que nos sentimos especialmente satisfechos, en relación al tratamiento nutricional en la esclerosis lateral amiotrófica (ELA): MANEJO NUTRICIONAL DE LA ESCLEROSIS LATERAL AMIOTRÓFICA: RESUMEN DE RECOMENDACIONES. Agradeceríamos fuese valorado para publicación en el órgano de expresión de nuestra Sociedad, la revista Nutrición Hospitalaria, como documento de Grupos de Trabajo. Esperamos que dicho texto sea útil y sirva como guía terapéutica orientativa a los profesionales que tratan pacientes con dicha patología, en el ámbito de la Nutrición, y redunde en la mejoría de la atención a nuestros pacientes con ELA.

El sindrome de Cushing dependiente de ACTH supone aproximadamente el 80% de todos los sindromes de Cushing. Diferenciar el origen hipofisario del ectopico sigue siendo un problema diagnostico en determinados casos, especialmente en los carcinoides bronquiales, ya que, aproximadamente, un 50% pueden presentar supresion de las concentraciones de cortisol tras dexametasona y suelen ser de pequeno tamano y, por lo tanto, dificiles de detectar en la radiografia de torax. Presentamos el caso de una paciente con sindrome de Cushing dependiente de ACTH, de dificil localizacion con las pruebas diagnosticas habituales.

La acidosis lactica es una rara enfermedad con una mortalidad en torno al 50%. Se caracteriza por una acidosis metabolica con anion gap y acido lactico elevado. Presentamos un caso de acidosis lactica en una paciente diabetica en tratamiento con metformina, que presento una insuficiencia renal aguda secundario a deshidratacion por un cuadro de gastroenteritis. El tratamiento con hemodialisis venovenosa continua fue exitoso con recuperacion gradual de la funcion renal. Se describe el caso clinico, los mecanismos fisiopatologicos, las diferentes causas y el pronostico de esta infrecuente y grave complicacion.

Aim: to communicate the results of the Spanish Home Parenteral Nutrition (HPN) registry of the NADYA-SENPE group for the year 2013. Material and Methods: data was recorded online by NADYA group collaborators that were responsible of the HPN follow-up from 1st January to 31st December 2013. Results: a total of 197 patients and 202 episodes of HPN were registered from 35 hospitals that represents a rate of 4,22 patients/million habitants/year 2013. The median age was 53 years (IQR 40 - 64) for 189 adult patients and 7 months (IQR 6 - 35,5) for children. The most frequent disease in adults was neoplasm (30,7%) followed by other diseases (20,1%) and mesenteric ischemia (12,7%). Short bowel syndrome and intestinal obstruction (25,9%) were in 35.7% cases the indications for HPN. The most frequent diagnosis for children were the congenital intestinal disorders and other diagnosis, both with a (37,5%) and short bowel syndrome and intestinal obstruction were the indication for treatment, each was present in 50% of the sample. Tunneled catheters (50%) and subcutaneous reservoirs (27,7%) were frequently used. The septic complications related with catheter were commonly frequent with a rate of 0.74 infections/1000 HPN days. HPN duration presented a median of 1,69 days. A total of 86 episodes finalized during the year, death was the principal reason (45%), followed by "resumed oral via" (43,75%) while it happened inversely for children, 66,7% of them resumed oral via and 16,7% deceased. Fifteen per cent were considered for intestinal transplant, children were proportionally candidates, p-value 0.002. Conclusions: the number of participating centers and registered patients increased progressively respect to preceding years. Since 2003 Neoplasm is still being the principal pathological group. Death is adult's principal reason for finalizing HPN and "resuming oral via" for children. Despite that NADYA registry is consolidate as a essential source of relevant information about the advances in Home Artificial Nutrition in our country, currently is in an improvement process of the available information about patients characteristics with a special emphasis on children even though they still being a minority group. Objetivo: comunicar los datos del registro de Nutrición Parenteral Domiciliaria (NPD) del grupo de trabajo NADYA-SENPE del años 2013. Material y Métodos: recopilación de los datos del registro "on-line" introducidos por los colaboradores del grupo NADYA responsables del seguimiento de la NPD desde el 1 de enero de 2013 al 31 de diciembre de 2013. Resultados: se registraron 197 pacientes, procedentes de 35 hospitales, lo que representa una tasa de 4,22 pacientes/ millón habitantes/año 2013, con 202 episodios de NPD. La edad media de los 189 pacientes mayores de 14 años fue de 53 años (IIQ 40 - 64), y en los niños de 7 meses (IIQ 6 - 35,5). La patología más frecuente en los adultos fue la neoplasia (30,7%) seguida por otras patologías (20,1%) y la isquemia mesentérica (12,7%). En el 35,4% de los casos el motivo de indicación fue el síndrome de intestino corto, seguido de la obstrucción intestinal (25,9%). En los niños el diagnóstico más frecuente fueron las alteraciones congénitas intestinales y 'otros diagnósticos', ambas con un 37,5 %, y la causa de la indicación el síndrome de intestino corto y la obstrucción intestinal, que se repartieron el 50% de la muestra. Los catéteres más utilizados fueron los tunelizados (50%) y los reservorios subcutáneos (27,7%). Las complicaciones más frecuentes fueron las sépticas, relacionadas con el catéter, con una tasa de 0,74 infecciones/1.000 días de NPD. La duración de la NPD presentó una mediana de 1,69 años. Durante el año finalizaron 86 episodios, la principal causa de la finalización en adultos fue el fallecimiento (45%) seguido del 'paso a la vía oral' (43,75%) y en los niños a la inversa 66,7% pasan a vía oral y 16,7% fallecen. Se consideraron candidatos para trasplante intestinal el 15% de los pacientes, siendo proporcionalmente los candidatos niños, p-valor 0,002. Conclusiones: se observa un aumento progresivo de los centros participantes y de los pacientes registrados respecto a años anteriores. El principal grupo patológico sigue siendo oncológico, ocupando el primer lugar desde 2003. La principal causa de finalización de la NPD es en los adultos el fallecimiento y en los niños el 'paso a vía oral'. Aunque el registro NADYA es un registro consolidado y ha sido y es fuente imprescindible de información relevante para el conocimiento de los avances de la Nutrición Artificial Domiciliaria en nuestro país, se encuentra en proceso de mejorar la información que ofrece sobre las características de los pacientes, con especial atención en el grupo de niños, aunque estos siguen siendo un número reducido.

Quasi-minimal residual algorithms, these are QMR, TFQMR and QMRCGSTAB, are biorthogonalisation methods for solving nonsymmetric linear systems of equations which improve the irregular behaviour of BiCG, CGS and BiCGSTAB algorithms, respectively. They are based on the quasi-minimisation of the residual using the standard Givens rotations that lead to iterations with short term recurrences. In this paper, these quasi-minimisation problems are solved using a different direct solver which provides new versions of QMR-type methods, the modified QMR methods (MQMR). MQMR algorithms have different convergence behaviour in finite arithmetic although are equivalent to the standard ones in exact arithmetic. The new implementations may reduce the number of iterations in some cases. In addition, we study the effect of reordering and preconditioning with Jacobi, ILU, SSOR or sparse approximate inverse preconditioners on the performance of these algorithms. Some numerical experiments are solved in order to compare the results obtained by standard and modified algorithms.

We experimentally study how reordering techniques affect the rate of convergence of preconditioned Krylov subspace methods for nonsymmetric sparse linear systems, where the preconditioner is a sparse approximate inverse. In addition, we show how the reordering reduces the number of entries in the approximate inverse and thus, the amount of storage and computation required for a given accuracy. These properties are illustrated with several numerical experiments taken from the discretization of PDEs by a finite element method and from a standard matrix collection.

Parallel preconditioners are presented for the solution of general linear systems of equations. The computation of these preconditioners is achieved by orthogonal projections related to the Frobenius inner product. So, minM∈∥AM−I∥ F and matrix M0∈ corresponding to this minimum ( being any vectorial subspace of ℳn(ℝ)) are explicitly computed using accumulative formulae in order to reduce computational cost when subspace is extended to another one containing it. Every step, the computation is carried out taking advantage of the previous one, what considerably reduces the amount of work. These general results are illustrated with the subspace of matrices M such that AM is symmetric. The main application is developed for the subspace of matrices with a given sparsity pattern which may be constructed iteratively by augmenting the set of non-zero entries in each column. Finally, the effectiveness of the sparse preconditioners is illustrated with some numerical experiments. Copyright © 2002 John Wiley & Sons, Ltd.

Hypoglycemia is a common problem among hospitalized patients. Treatment of hyperglycemia with insulin is potentially associated with an increased risk for hypoglycemia. The aim of this study was to determine the prevalence and predictors of hypoglycemia (capillary blood glucose70 mg/dL) in hospitalized patients receiving total parenteral nutrition (TPN).This prospective multicenter study involved 19 Spanish hospitals. Noncritically ill adults who were prescribed TPN were included, thus enabling us to collect data on capillary blood glucose and insulin dosage.The study included 605 patients of whom 6.8% (n = 41) had at least one capillary blood glucose70 mg/dL and 2.6% (n = 16) had symptomatic hypoglycemia. The total number of hypoglycemic episodes per 100 d of TPN was 0.82. In univariate analysis, hypoglycemia was significantly associated with the presence of diabetes, a lower body mass index (BMI), and treatment with intravenous (IV) insulin. Patients with hypoglycemia also had a significantly longer hospital length of stay, PN duration, higher blood glucose variability, and a higher insulin dose. Multiple logistic regression analysis showed that a lower BMI, high blood glucose variability, and TPN duration were risk factors for hypoglycemia. Use of IV insulin and blood glucose variability were predictors of symptomatic hypoglycemia.The occurrence of hypoglycemia in noncritically ill patients receiving PN is low. A lower BMI and a greater blood glucose variability and TPN duration are factors associated with the risk for hypoglycemia. IV insulin and glucose variability were predictors of symptomatic hypoglycemia.

El feocromocitoma es un tumor derivado de las celulas cromafines de la medula adrenal. Cuando afecta a celulas situadas en la cadena simpatica, se denomina paraganglioma. Pese a ser infrecuente, debe incluirse entre las posibles causas de hipertension, arritmias cardiacas y crisis de ansiedad. Presentamos el caso de una mujer con un feocromocitoma vesical y una lesion hepatocelular con captacion positiva en el estudio isotopico con MIBG (metayodobencilguanidina) que se ha interpretado como un falso positivo.

ACTH dependent Cushing syndrome accounts for approximately 80% of all Cushing syndrome. Distinguishing the pituitary origin from ectopic one is still a diagnosis problem in some cases, especially in bronchial carcinoids, because approximately 50% show cortisol suppresion after dexametasone and may be small and, therefore, difficult to detect in chest radiography. We present a case of a patient with ACTH dependent Cushing syndrome of difficult localization with usual diagnosis tests.

Pheochromocytoma is a tumor derived from the chromaffin cells of the adrenal medulla. When this type of tumor involves the sympathetic ganglia it is called paraganglioma. Although infrequent, paraganglioma should be considered in the evaluation of hypertension, arrhythmias, and panic disorder. We report the case of a woman with bladder pheochromocytoma and a hepatic lesion. MIBG scintigraphy showed non-physiological uptake, which was interpreted as a false positive result.

Objective: To assess the validity of the use of IGF-1, IGFBP-1 and IGFBP-3 as biochemical markers of nutritional status in prepubertal healthy children. Design: Cross-sectional survey. Setting: Healthy children from the Madrid area. Participants: Prepubertal children (aged 7–10 years) with a body mass index (BMI) above the 90th percentile (n = 25) and below the 10th percentile (n = 31) were selected from 2,559 included in the CAENPE study (Food Intake and Nutritional Status in Schoolchildren from Madrid). Results: Overweight children were found to have higher serum levels of IGF-1 (306 ± 162.2 vs. 209 ± 71.2 ng/ml, p < 0.001) and IGFBP-3 (3.3 ± 1.0 vs. 2.9± 0.5 mg/l, p < 0.01) and lower serum levels of IGFBP-1 (4.3 ± 3.9 vs. 13.8 ± 7.4 μg/l, p < 0.01). There was a positive correlation with BMI, for IGF-1 and IGFBP-3, and negative correlation for IGFBP-1. No differences in albumin and transferrin concentrations were observed between both groups of children. Conclusion: IGF-1, IGFBP-1 and IGFBP-3 clearly classify over- and underweight prepubertal children, showing a good correlation with BMI. They can be used as biochemical markers of caloric nutritional status in this population.

La tiroiditis subaguda, descrita por primera vez por De Quervain en 1904, es la causa principal de dolor tiroideo. Las etiologias mas probables son una infeccion viral o un proceso inflamatorio postinfeccioso. La clinica tipica incluye dolor cervical anterior, bocio difuso y alteracion de la funcion tiroidea que sigue un curso predecible en la mayoria de los casos. Presentamos el caso de una paciente de 63 anos con una tiroiditis subaguda de inicio focal, con un nodulo tiroideo doloroso a la palpacion y manifestaciones sistemicas concomitantes.

The efficiency of a finite element mass consistent model for wind field adjustment depends on the stability parameter @a which allows adjustment from a strictly horizontal wind to a pure vertical one. Each simulation with the wind model leads to the resolution of a linear system of equations, the matrix of which depends on a function @e(@a), i.e., (M+@eN)x"@e=b"@e, where M and N are constant, symmetric and positive definite matrices with the same sparsity pattern for a given level of discretization. The estimation of this parameter may be carried out by using genetic algorithms. This procedure requires the evaluation of a fitness function for each individual of the population defined in the searching space of @a, that is, the resolution of one linear system of equations for each value of @a. Preconditioned Conjugate Gradient algorithm (PCG) is usually applied for the resolution of these types of linear systems due to its good convergence results. In order to solve this set of linear systems, we could either construct a different preconditioner for each of them or use a single preconditioner constructed from the first value of @e to solve all the systems. In this paper, an intermediate approach is proposed. An incomplete Cholesky factorization of matrix A"@e is constructed for the first linear system and it is updated for each @e at a low computational cost. Numerical experiments related to realistic wind field are presented in order to show the performance of the proposed preconditioning strategy.

Objetivo: exponer los resultados del registro de nutrición enteral domiciliaria (NED) del año 2014 y 2015 del Grupo NADYA-SENPE. Métodos: se recopilaron los pacientes introducidos en el registro desde el 1 de enero al 31 de diciembre de 2014 y la mismas fechas de 2015, y se procedió al análisis descriptivo y analítico de los datos. Resultados: en el año 2014, se registraron 3.749 pacientes y en 2015, 4.202; la prevalencia fue de 80,58 pacientes/millón de habitantes en el año 2014 y de 90,51 en 2015. Por sexos, hubo un 49,9% de mujeres en 2014 y un 50,3% en 2015. La edad media fue de 73 años (IIQ 59-83) en ambos años. Finalizaron 684 episodios de NED en 2014 y 631 en 2015, la causa principal fue el fallecimiento en el 54,9% y 50,4% de los casos, respectivamente. Los portadores de sonda nasogástrica presentan una edad media superior a los pacientes con cualquier otra vía (p < 0,001). Se registraron 67 pacientes pediátricos en 2014 (56,7% niñas) y 77 en 2015 (55,8% niñas). La vía principal de administración fue la gastrostomía en el 52,0% de los casos de 2014 y sonda nasogástrica en el 50,8% de los casos de 2015. La causa principal de finalización de la nutrición fue el fallecimiento (57,1% en 2014 y 38,5% en 2015). Se observó que los niños más pequeños eran los que se alimentaban preferentemente por SNG (p 0,004 vs. 0,002).Tanto en pacientes pediátricos como en adultos el diagnóstico principal que motivó la necesidad de NED fue la enfermedad neurológica que cursa con afagia o disfagia severa. Conclusiones: se ha incrementado el número de pacientes del registro, así como el número de centros participantes y el número medio de pacientes comunicados por cada centro respecto a años anteriores, sin que se hayan modificado sustancialmente las características de los pacie