Consenso colombiano de Falla Intestinal Crónica en Síndrome de Intestino Corto / Colombian Consensus on Chronic Intestinal Failure in Short Bowel Syndrome

Introducción. Los términos falla intestinal crónica, síndrome de intestino corto (SIC) y nutrición parenteral total son muy frecuentes en la práctica clínica cotidiana.El objetivo de esta guía fue establecer un marco de referencia de práctica clínica basado en el mejor de nivel de evidencia en pacientes con falla intestinal crónica secundaria a síndrome de intestino corto. Métodos. Se estableció un grupo de expertos interdisciplinarios en el manejo de la falla intestinal crónica quienes, previa revisión de la literatura escogida, se reunieron de manera virtual acogiendo el método Delphi para discutir una serie de preguntas seleccionadas, enfocadas en el contexto terapéutico de la falla intestinal crónica asociada al síndrome de intestino corto. Resultados. La recomendación del grupo de expertos colombianos es que se aconseje a los pacientes con SIC consumir dietas regulares de alimentos integrales que genere hiperfagia para compensar la malabsorción. Las necesidades proteicas y energéticas dependen de las características individuales de cada paciente; la adecuación del régimen debe ser evaluada a través de pruebas clínicas, antropométricas y parámetros bioquímicos. Se sugiere, especialmente a corto plazo después de la resección intestinal, el uso de análogos de somatostatina para pacientes con yeyunostomía de alto gasto en quienes el manejo de líquidos y electrolitos es problemático. En pacientes con SIC, que son candidatos a tratamiento con enterohormonas, Teduglutida es la primera opción. Conclusión. Existen recomendaciones en el manejo integral de la rehabilitación intestinal respaldadas ampliamente por este consenso y es importante el reconocimiento de alternativas terapéuticos enmarcadas en el principio de buenas prácticas clínicas.

Introduction. The terms chronic intestinal failure, short bowel syndrome (SBS), and total parenteral nutrition are very common in daily clinical practice. The objective of this guideline was to establish a reference framework for clinical practice based on the best level of evidence in patients with chronic intestinal failure secondary to short bowel syndrome. Methods. A group of interdisciplinary experts in the management of chronic intestinal failure was established who, after reviewing the selected literature, met virtually using the Delphi method to discuss a series of selected questions, focused on the therapeutic context of chronic intestinal failure associated with short bowel syndrome. Results. The recommendation of the Colombian expert group is that patients with SBS be advised to consume regular diets of whole foods that generate hyperphagia to compensate malabsorption. Protein and energy needs depend on the individual characteristics of each patient; the adequacy of the regimen must be evaluated through clinical, anthropometric tests and biochemical parameters. The use of somatostatin analogue is suggested, especially in the short term after bowel resection, for patients with high-output jejunostomy in whom fluid and electrolyte management is problematic. In SBS, who are candidates for enterohormonal therapy, Teduglutide is the first choice. Conclusion. There are recommendations on the comprehensive management of intestinal rehabilitation that are widely supported by this consensus and it is important to recognize therapeutic alternatives framed in the principle of good clinical practice.

Molecular investigation of an outbreak associated with total parenteral nutrition contaminated with NDM-producing Leclercia adecarboxylata.

BACKGROUND: This study aimed to determine the epidemiological, microbiological, and molecular characteristics of an outbreak of carbapenem-resistant Leclercia adecarboxylata in three hospitals associated with the unintended use of contaminated total parental nutrition (TPN). METHODS: For 10 days, 25 patients who received intravenous TPN from the same batch of a formula developed sepsis and had blood cultures positive for L. adecarboxylata. Antimicrobial susceptibility and carbapenemase production were performed in 31 isolates, including one from an unopened bottle of TPN. Carbapenemase-encoding genes, extended-spectrum ß-lactamase-encoding genes were screened by PCR, and plasmid profiles were determined. Horizontal transfer of carbapenem resistance was performed by solid mating. Clonal diversity was performed by pulsed-field gel electrophoresis. The resistome was explored by whole-genome sequencing on two selected strains, and comparative genomics was performed using Roary. RESULTS: All 31 isolates were resistant to aztreonam, cephalosporins, carbapenems, trimethoprim/sulfamethoxazole, and susceptible to gentamicin, tetracycline, and colistin. Lower susceptibility to levofloxacin (51.6%) and ciprofloxacin (22.6%) was observed. All the isolates were carbapenemase producers and positive for blaNDM-1, blaTEM-1B, and blaSHV-12 genes. One main lineage was detected (clone A, 83.9%; A1, 12.9%; A2, 3.2%). The blaNDM-1 gene is embedded in a Tn125-like element. Genome analysis showed genes encoding resistance for aminoglycosides, quinolones, trimethoprim, colistin, phenicols, and sulphonamides and the presence of IncFII (Yp), IncHI2, and IncHI2A incompatibility groups. Comparative genomics showed a major phylogenetic relationship among L. adecarboxylata I1 and USDA-ARS-USMARC-60222 genomes, followed by our two selected strains. CONCLUSION: We present epidemiological, microbiological, and molecular evidence of an outbreak of carbapenem-resistant L. adecarboxylata in three hospitals in western Mexico associated with the use of contaminated TPN.

Unexpectedly Weak Anti-B in 2 Group O Pediatric Patients on Parenteral Nutrition and Disease Specific Supplemental Enteral Feeds.

Anti-A and anti-B antibodies are naturally occurring and develop from exposure to intestinal bacteria after age 4 to 6 months. In the laboratory, strong agglutination with A1 and B cells, or B cells only and A1 cells only, on reverse typing in a healthy person with immunocompetence is expected for patients with ABO types O, A, and B, respectively. However, absent or weak anti-A and anti-B antibodies can be observed in some clinical scenarios, such as patients with immunodeficiencies, newborns, elderly patients, and patients who have recently received bone marrow transplants. In this article, we report the cases of 2 pediatric patients with group O blood type who were receiving total parenteral nutrition (TPN) and disease-specific enteral feeds and who have strong anti-A and absent/weak anti-B.

Refeeding syndrome in adults receiving total parenteral nutrition: An audit of practice at a tertiary UK centre.

BACKGROUND & AIMS: The key to preventing refeeding syndrome (RS) is identifying and appropriately managing patients at risk. We evaluated our clinical management of RS risk in patients starting total parenteral nutrition (TPN). METHODS: Patients commencing TPN at University College London Hospital between January and July 2015 were prospectively followed-up for 7-days. Eighty patients were risk assessed for RS and categorized into risk groups. High and low risk RS groups were compared focussing on the onset of biochemical features of RS (hypophosphatemia, hypokalaemia and hypomagnesemia) and initial clinical assessment. Statistical analysis was conducted using t-tests and Mann-Whitney U tests. RESULTS: Sixty patients (75%) were identified as high-risk for RS and received lower initial calories (12.8 kcal/kg/day, p < 0.05). All high-risk patients received a high potency vitamin preparation compared to 35% in the low risk group (p < 0.05). Daily phosphate, magnesium and potassium plasma levels were monitored for seven days in 25%, 30% and 53.8% of patients, respectively. Hypophosphatemia developed in 30% and hypomagnesaemia and hypokalaemia in 27.5% of all patients. Approximately 84% of patients had one or more electrolyte abnormalities, which occurred more frequently in high-risk RS patients (p < 0.05). Low risk patients developed mild hypophosphatemia at a much lower percentage than high-risk RS (20% vs 33.3%, respectively). CONCLUSION: A significant proportion of patients commencing TPN developed biochemical features of RS (but no more serious complications) despite nutritional assessment, treatment, and follow up in accordance with national recommendations. High vs low risk RS patients were more likely to have electrolyte abnormalities after receiving TPN regardless of preventative measures. Additional research is required to further optimise the initial nutritional approach to prevent RS in high-risk patients.

Multimídia interativa em saúde: capacitação de enfermeiros sobre cuidados dos pacientes em nutrição parenteral total / Interactive health multimedia: nursing training on patient care in nutrition total parenteral

A multimídia interativa é uma medida no âmbito da tecnologia de informação e comunicação adotada atualmente de forma ampla, com a proposta de difundir conhecimentos de forma muito mais acessível e uniforme a toda comunidade, interligada pela aplicação prática do conhecimento científico. Utilizando-se desse mecanismo de ampliação de conhecimentos, a ciência da saúde vêm empregando esses avanços tecnológicos na capacitação de profissionais, especialmente enfermeiros, no caso da presente pesquisa, na temática da Nutrição Parenteral Total. O objetivo do estudo foi estruturar e testar uma multimídia interativa construída no site Fábrica de Aplicativos, como estratégia de capacitação de enfermeiros que cuidam de clientes submetidos à nutrição parenteral. Metodologia: estudo intervencional, em instituição federal do Rio de Janeiro. Os participantes foram avaliados sobre a temática, em pré teste, foi aplicado a multimídia interativa, realizada no site Fábrica de aplicativos, após isso, um pós teste, onde foi analisado as competências adquiridas após a implementação da multimídia interativa

Interactive multimedia is a measure in the field of information technology and communication currently widely adopted, with the proposal of disseminating knowledge in a much more accessible and uniform way to the whole community, interlinked by the practical application of scientific knowledge. Using this mechanism of knowledge enhancement, health science has been employing these technological advances in the training of professionals, especially nurses, in the case of the present research, in the theme of Total Parenteral Nutrition. The objective of the study is to structure and test an interactive multimedia built on the Application Factory site, as a training strategy for nurses who care for clients submitted to parenteral nutrition. Methodology: interventional study, in a federal institution of Rio de Janeiro. Participants Will be evaluated on the subject, in pre-test, will be applied to interactive multimedia, held in the Application Factory site, in a new moment, a post test, where will be analyzed the skills acquired after the implementation of interactive multimedia

Ascitis quilosa postraumática tratada con nutrición parenteral total y octreótido / Post-trauma Chylous Ascites Treated with Total Parenteral Nutrition and Octreotide

La ascitis quilosa es la acumulación de quilo en la cavidad peritoneal por ruptura u obstrucción de los conductos linfáticos abdominales. Aunque es infrecuente, se describe mayor probabilidad de aparición después de traumas abdominales. Se presenta un paciente masculino de 46 años que sufre herida por arma blanca tóracoabdominal por lo que requirió tratamiento quirúrgico de urgencia. Luego de varias cirugías se constató la presencia de líquido abdominal blanquecino, con triglicéridos elevados. Se confirmó la ascitis quilosa, que se reabsorbió en 45 días con nutrición parenteral y octreótido(AU)

Chylous ascites is the accumulation of lipid-rich lymph in the peritoneal cavity due to rupture or obstruction of the abdominal lymph ducts. Although it is rare, greater probability is described for its onset after abdominal traumas. The case is presented of a 46-year-old male patient who suffers from a thorax-abdomen knife wound and therefore required emergency surgical treatment. After several surgeries, the presence of whitish abdominal liquid was detected, with elevated triglycerides. Chylous ascites was confirmed, which was reabsorbed in 45 days with parenteral nutrition and octreotide(AU)

Statewide Initiative to Reduce Postnatal Growth Restriction among Infants <31 Weeks of Gestation.

OBJECTIVE: To decrease the incidence of postnatal growth restriction, defined as discharge weight <10th percentile for postmenstrual age, among preterm infants cared for in New York State Regional Perinatal Centers. STUDY DESIGN: The quality improvement cohort consisted of infants <31 weeks of gestation admitted to a New York State Regional Perinatal Center within 48 hours of birth who survived to hospital discharge. Using quality improvement principles from the Institute for Healthcare Improvement and experience derived from successfully reducing central line-associated blood stream infections statewide, the New York State Perinatal Quality Collaborative sought to improve neonatal growth by adopting better nutritional practices identified through literature review and collaborative learning. New York State Regional Perinatal Center neonatologists were surveyed to characterize practice changes during the project. The primary outcome-the incidence of postnatal growth restriction-was compared across the study period from baseline (2010) to the final (2013) years of the project. Secondary outcomes included differences in z-score between birth and discharge weights and head circumferences. RESULTS: We achieved a 19% reduction, from 32.6% to 26.3%, in postnatal growth restriction before hospital discharge. Reductions in the difference in z-score between birth and discharge weights were significant, and differences in z-score between birth and discharge head circumference approached significance. In survey data, regional perinatal center neonatologists targeted change in initiation of feedings, earlier breast milk fortification, and evaluation of feeding tolerance. CONCLUSIONS: Statewide collaborative quality improvement can achieve significant improvement in neonatal growth outcomes that, in other studies, have been associated with improved neurodevelopment in later infancy.

Emended description of the genus Phytobacter, its type species Phytobacter diazotrophicus (Zhang 2008) and description of Phytobacter ursingii sp. nov.

The species Phytobacter diazotrophicus and the associated genus Phytobacter were originally described by Zhanget al. [Arch Microbiol189 (2008), 431-439] on the basis of few endophytic nitrogen-fixing bacteria isolated from wild rice (Oryza rufipogon) in China. In this study, we demonstrate that a number of clinical isolates that were either described in the literature, preserved in culture collections, or obtained during a 2013 multi-state sepsis outbreak in Brazil also belong to the same genus. 16S rRNA gene sequencing, multilocus sequence analysis based on gyrB, rpoB, atpD and infB genes, as well as digital DNA-DNA hybridization support the existence of a second species within the genus Phytobacter. All isolates from the recent Brazilian outbreak, along with some older American clinical strains, were found to belong to the already described species Phytobacterdiazotrophicus, whereas three clinical strains retrieved in the USA over a time span of almost four decades, could be assigned to a new Phytobacter species. Implementation of an extended set of biochemical tests showed that the two Phytobacter species could phenotypically be discriminated from each other by the ability to utilize l-sorbose and d-serine. This feature was limited to the strains of the novel species described herein, for which the name Phytobacter ursingii sp. nov. is proposed, with ATCC 27989T (=CNCTC 5729T) as the designated type strain. An emended description of the species Phytobacter diazotrophicus and of the genus Phytobacter is also provided.

[Incidence of catheter-related infection incidence and risk factors in patients on total parenteral nutrition in a third level hospital]. / Incidencia de infección asociada a catéter venoso central y factores de riesgo relacionados en pacientes con nutrición parenteral total en un hospital de tercer nivel.

BACKGROUND: Central venous catheters are devices used for therapeutic, diagnostic, and monitoring purposes. Complications associated with central venous catheter use include those related to their insertion, rupture and displacement of the catheter, occlusion, thrombosis, and infection. Of these the latter is important due to the high morbidity and mortality it causes in the patients, and total parenteral nutrition increases the risk. The aim of this study is determine the incidence and risk factors associated with catheter-related infection in patients on parenteral nutrition. MATERIAL AND METHODS: A retrospective, observational, and cross-sectional study was conducted, by analysing patients on total parenteral nutrition who developed a catheter-related infection in a 6-month period. Multiple variables were studied, looking for significance. A statistically significant relationship was considered with a p<0.05. RESULTS: The study consisted of 85 patients, of whom 52% were women and 48% men. The median age was 54 years. The most frequent diagnosis was enterocutaneous fistula. Catheter associated infection was present in 19% of patients. The most frequent microorganisms found were Staphyloccocus sp. (44%) and Candida sp. (25%). Median time between central venous catheter insertion and infection was 78±64 days. There was a significance between days with a central venous catheters and infection development (p=0.014). Infection developed in 81% of patients on whom surgery was performed (p<0.05) CONCLUSION: It was found that patients with a longer use of a central venous catheter (p=0.014) and those who were operated on in conjunction with total parenteral nutrition (p<0.05) were more prone to develop a catheter-associated infection.

Los días de exposición a nutrición parenteral aumentan el riesgo de bacteriemia asociada a catéter venoso central / Exposition to total parenteral nutrition increases the risk of catheter-related bloodstream infection

Background: Infectious complications associated to central venous catheter (CVC) increase morbidity, mortality and costs. Total parenteral nutrition (TPN) is one of the risk factors described for catheter-related bloodstream infection (CR-BSI). The aim of this study was explore if TPN and time of exposition, are risk factors for CR-BSI among patient exposed to this therapy. Patients and Methods: Cohort study of patients with CVC exposed and not exposed to TPN with calculation of the relative risk (RR) for CR-BSI and percentage of CR-BSI according to different times of exposition to TPN. Study encompassed years 2010-2015 and only adult patients were included. Results: During the study period 51 events of CR-BSI were identified, with 27 occurring among those exposed to TPN and 24 among those not exposed. CR-BSI incidence rate was 6.3 in the group with TPN and 1.2 in those without this therapy (RR 5.4; IC 95 3.6-8.2). The percentage of patients with CR-BSI increased in parallel to exposition time (Pearson coefficient +0.91) and the OR increased for expositions ≥ 7 days (OR 2.8; IC 95 1.047.4; p < 0.05). Conclusions: Exposition to TPN increases the risk to CR-BSI in adult patients with CVC and this risk raise with exposition time.

Antecedentes: Las complicaciones infecciosas asociadas a dispositivos vasculares centrales tienen impacto en morbi-mortalidad y costos. Diferentes factores de riesgo han sido identificados en las ITS/CVC, incluyendo la nutrición parenteral total (NPT). Objetivo: Determinar si la NPT y el tiempo de exposición constituyen factores de riesgo para desarrollar ITS/CVC. Pacientes y Método: Estudio de cohortes de diseño prospectivo, de pacientes adultos con catéter venoso central (CVC) convencional, internados en el Hospital Militar entre los años 2010 y 2015 y que estuvieron expuestos o no expuestos a NPT, calculando el riesgo relativo (RR) y la distribución porcentual de las ITS/CVC a diferentes intervalos de exposición de NPT con análisis de coeficiente de correlación y cálculo de Odds Ratio (OR). Resultados: Durante el período de estudio se registraron 51 eventos de ITS/CVC en pacientes adultos con CVC, de los cuales 27 estuvieron expuestos a NPT y 24 no. Incidencia de 6,3 por 1.000 días en expuestos a NPT vs 1,2 en no expuestos (RR de 5,4; IC 95 3,6 a 8,2). La proporción de pacientes con ITS/CVC aumentó a medida que aumentaba la exposición a NPT (coeficiente correlación r = +0,91), siendo significativa para exposiciones ≥ 7 días (OR 2,8; IC 95 1,04-7,4; p < 0,05). Conclusiones: La exposición a NPT aumenta el riesgo de ITS/CVC en pacientes adultos hospitalizados respecto a aquellos pacientes que no reciben NPT, además este riesgo aumenta con el tiempo de exposición.

Small Bowel Diameter in Short Bowel Syndrome as a Predictive Factor for Achieving Enteral Autonomy.

Children with short bowel syndrome commonly have dilated small bowel. We found that the extent of dilation was associated with bowel length and that both were related to achieving enteral autonomy.

Caracterização da evolução clínica dos recém-nascidos com gastrosquise em uma unidade de terapia intensiva neonatal de referência da américa latina / Characteristics of the clinical development of a newborn with gastroschisis in an intensive care unit in latin america

INTRODUCTION: Congenital malformations are major diseases observed at birth. They are the second most common cause of death in the neonatal population, the first one being prematurity. OBJECTIVE: To characterise the clinical outcome of newborns with gastroschisis (GS) in a neonatal intensive care unit. METHODS: A retrospective observational clinical study in 50 infants with GS using the association of intestinal abnormalities, impossibility of primary closure of the abdominal defect and reoperation necessity as classification criteria for the disease. The significance level was p < 0.05. RESULTS: The hospitalisation to primary surgery occurred with a median age of 2 hours. Fourteen percent of children were subjected to a primary silo interposition and 24% had associated intestinal malformation. Nineteen newborns (NB) required more than one surgery. The median length of stay was 33 days, higher in patients with complex GS (56 days). All NB recovered from urine output 48 hours after surgery and 40% had hyponatraemia and oligoanuria in this period. There was no difference between the natraemia and fasting time (p = 0.79). Weight gain was similar in both groups with total parenteral nutrition and became significantly higher in patients with simple GS after enteral feeding (p = 0.0046). These NB evolved 2.4 times less cholestasis. Late-onset sepsis occurred in 58% of patients and was related to the infection of the central venous catheter in 37.9% of cases. Mortality was higher in infants infected with complex GS and the overall mortality rate was 14%. CONCLUSION: Clinical characterisation of newborns with gastroschisis depends on the complexity and the knowledge and conduct of morbidities to reduce mortality.

INTRODUÇÃO: As malformações congênitas fazem parte das principais doenças observadas ao nascimento. Entre as causas de óbito no período neonatal as malformações foram a segunda causa, sendo ainda a primeira, a prematuridade. OBJETIVOS: Caracterizar a evolução clínica dos recém-nascidos (RN) com gastrosquise (GTQ) em uma unidade de terapia intensiva neonatal e descrever as morbidades renal, nutricional e infecciosa relacionados ao manejo clínico pós-natal na unidade de terapia intensiva neonatal MÉTODO: Foi realizado estudo observacional retrospectivo em 50 RN com GTQ, utilizando a associação de anormalidades intestinais, impossibilidade de fechamento primário do defeito abdominal e necesidade de reoperação como critérios de classificação para a doença. O nível de significância foi p < 0,05. RESULTADOS: A admissão hospitalar para cirurgia primária ocorreu com mediana de idade de 2 horas. O total de 14% das crianças foram submetidas a uma interposição de silo primária e 24% apresentaram malformação intestinal associada. Dezenove RN necessitaram mais de uma intervenção cirúrgica. A mediana do tempo de estadia foi de 33 dias, sendo maior nos pacientes com GTQ complexa (56 dias). Todos os RN recuperaram o débito urinário a partir de 48 horas do pós-operatório e 40% apresentaram hiponatremia e oligoanúria nesse período. Não houve diferença entre a natremia e o tempo de jejum (p = 0,79). O ganho ponderal foi similar em ambos os grupos com nutrição parenteral total e tornou-se significativamente maior nos pacientes com GTQ simples após a alimentação enteral (p = 0,0046). Esses RN evoluíram 2,4 vezes com menos colestase. Sepse tardia ocorreu em 58% dos pacientes e foi relacionada à infecção do CVC em 37,9% dos casos. A mortalidade foi maior nos RN infectados com GTQ complexa e a taxa global de mortalidade foi de 14%. CONCLUSÃO: A caracterização clínica dos RN com GTG depende da complexidade e do conhecimento e condução das morbidades para diminuir a mortalidade.

Registro de la utilización de nutrición parenteral en el Hospital de Pediatría Juan P. Garrahan / Registry of the use of parenteral nutrition at the Pediatric Hospital Juan P. Garrahan

La nutrición parenteral (NPT) en pediatría es un recurso que permite mantener el sostén clínico de aquellos pacientes que por la complejidad de la patología que presentan no pueden utilizar la vía enteral. El objetivos es analizar el registro de utilización de NPT en el Hospital de Pediatría Juan P. Garrahan. Estudio retrospectivo descriptivo. Se analizaron 95 solicitudes de NPT durante el período julio-agosto 2011. Se accedió a las historias clínicas, donde se constataron las variables principales: edad (meses), sexo, área de internación, patología asociada a su uso, duración promedio (días), tipo de NPT (Standard o personalizada) y evidencia de complicaciones. Se definió colestasis a valores de Bilirrubina directa mayor a 2 mg%. Sobre un total 114 indicaciones médicas de NPT, se accedió a 95 historias clínicas. Perfil de uso: Neonatología 34,5%, Cuidados Intensivos 35,7% y Cuidados Intermedios y moderados 29,8%. La media de edad 39 meses (0-192). Las patologías más frecuentes son quirúrgicas 52,6%, hematológicas y oncológicas 28,4%. La duración total de la indicación fue en promedio 16,5 días (0-187). Las soluciones personalizadas (a la carta) 83%. Las soluciones con lípidos sumaron un total de 73 (76%). Como complicaciones se observaron 13 casos de colestasis (13,68%) los cuales se asociaron a soluciones con lípidos. La mayoría de los pacientes que requirieron uso de NPT presentaron patologías que requerían cuidados críticos neonatales o pediátricos. Las soluciones personalizadas o "a la carta" fueron las más utilizadas. El tiempo de administración fue muy variable, la presencia de colestasis se relacionó con los usos más prolongados; superior a los 71 días promedio (AU)

In pediatrics, total parenteral nutrition (TPN) is a resource that allows to clinically support those patients who, due to the severity of their disease, do not tolerate the enteral route. The aim of this study was to analyze the registry of TPN use at the Pediatric Hospital Dr. Juan P. Garrahan. A retrospective descriptive study was conducted. Ninety-five requests for TPN made in July and August 2011 were analyzed. Clinical charts of the patients were assessed recording the main variables: Age (months), sex, area the child was admitted to, pathology associated with TPN use, duration of TPN (days), type of TPN (standard or personalized), and evidence of complications. Cholestasis was defined as direct bilirubin greater than 2 mg%. For a total of 114 medical indications for PN, access to 95 clinical charts was obtained. User's profile: Neonatology 34.5%, intensive care 35.7%, intermediate and moderate care 29.8%. Mean age of the patients was 39 months (0-192). The most common pathologies were surgical in 52.6% and hematological and oncological in 28.4%. Mean duration of TPN was 16.5 days (0-187). Personalized formulations ("a la carte") were used in 83%. Overall, 73 (76%) formulations with lipids were used. Complications observed were 13 cases of cholestasis (13.68%) that were associated with the use of lipid formulations. Most patients that needed TPN had pathologies requiring neonatal or pediatric critical care. Personalized or "a la carte" formulations were most often used. The duration of TPN administration was variable. Cholestasis was related with longer TPN use, with a mean of 71 days (AU)

[Wernicke's encephalopathy and Caine criteria. Report of six cases]. / Encefalopatía de Wernicke y criterios de Caine. Informe de seis casos.

BACKGROUND: Wernicke's encephalopathy is an acute and reversible neurologic disorder due to deficiency of thiamin. Chronic alcoholism was the main cause in the past; currently, there are many other situations which favour this condition: prolonged intravenous feeding, hyperemesis gravidarum, anorexia nervosa, regional enteritis, malabsorption syndrome, hemodialysis, peritoneal dialysis, and abdominal surgery. CLINICAL CASE: We report six patients, three male and three female, who had in common total parenteral nutrition over two months, secondary to abdominal surgery complications and restriction to enteral nutrition. Clinical manifestations were drowsiness, psychomotor hyperactivity, ophthalmoplegia with bilateral abduction impairment, horizontal nystagmus; three patients with ataxia and appendicular dysmetria. Magnetic resonance imaging showed abnormal T2 hyperintensity of the superior colliculus, periaqueductal gray matter, mammillary bodies and dorsomedial nucleus of the thalamus, as well as abnormal T1 hyperintensity in both lenticular nucleus from manganese deposits due to total parenteral nutrition. CONCLUSIONS: The classical triad is global confusional state, ocular abnormalities and ataxia. However, using the Caine criteria, the diagnosis could be faster in susceptible patients without previous alcoholism.

INTRODUCCIÓN: la encefalopatía de Wernicke es un desorden neurológico agudo y reversible debido a deficiencia de tiamina. En el pasado, se reconocía al alcoholismo crónico como una de las principales causas; actualmente se conocen otras condiciones que lo favorecen: nutrición parenteral prolongada, hiperémesis gravídica, anorexia nerviosa, enteritis regional, síndrome de malabsorción, hemodiálisis, diálisis peritoneal y cirugía abdominal extensa, entre otras. CASOS CLÍNICOS: se describen seis pacientes, tres hombres y tres mujeres que tuvieron en común nutrición parenteral total por más de dos meses debido a complicaciones quirúrgicas abdominales que impedían la vía oral. Las manifestaciones clínicas fueron somnolencia, agitación psicomotriz, oftalmoplejía con limitación para la abducción bilateral y nistagmo horizontal; tres pacientes presentaron ataxia y dismetría apendicular. Los hallazgos en la resonancia magnética fueron hiperintensidad en T2 en los colículos superiores, sustancia gris periacueductal, tubérculos mamilares y núcleos dorsomediales del tálamo; así como hiperintensidad en T1 en ambos núcleos lenticulares por depósito de manganeso debido a la nutrición parenteral total. CONCLUSIONES: la tríada característica está integrada por síndrome confusional, oftalmoplejía y ataxia. Con el empleo de los criterios de Caine, el diagnóstico puede ser más rápido y oportuno en los pacientes susceptibles sin antecedente de alcoholismo.

Concurrent bloodstream infections in infants with necrotizing enterocolitis.

OBJECTIVE: To determine the incidence, microbiology, risk factors, and outcomes related to bloodstream infections (BSIs) concurrent with the onset of necrotizing enterocolitis (NEC). STUDY DESIGN: We performed a retrospective review of all cases of NEC in a single center over 20 years. BSI was categorized as "NEC-associated" if it occurred within 72 hours of the diagnosis of NEC and "post-NEC" if it occurred >72 hours afterwards. Demographics, hospital course data, microbiologic data, and outcomes were compared via univariate and multivariate analyses. RESULTS: NEC occurred in 410 infants with mean gestational age and birth weight of 29 weeks and 1290 g, respectively; 158 infants were diagnosed with at least one BSI; 69 (43.7%) with NEC-associated BSI, and 89 (56.3%) with post-NEC BSI. Two-thirds of NEC-associated BSI were due to gram-negative bacilli compared with 31.9% of post-NEC BSI (OR: 4.27; 95% CI: 2.02, 9.03) and 28.5% of all BSI in infants without NEC (OR: 5.02; 95% CI: 2.82, 8.96). Infants with NEC-associated BSI had higher odds of requiring surgical intervention (aOR: 3.51; 95% CI: 1.98, 6.24) and death (aOR: 2.88; 95% CI: 1.39, 5.97) compared with those without BSI. CONCLUSIONS: BSI is a common, underappreciated complication of NEC occurring concurrent with the onset of disease and afterwards. The microbiologic etiology of NEC-associated BSI is different from post-NEC and late-onset BSI in infants without NEC with a predominance of gram-negative bacilli. Infants with NEC-associated BSI are significantly more likely to die than those with post-NEC BSI and NEC without BSI.

Serial transverse enteroplasty allows children with short bowel to wean from parenteral nutrition.

OBJECTIVE: To analyze the effects of serial transverse enteroplasty (STEP) on parenteral and enteral calories in children with short bowel syndrome, and examine short- and long-term complications. STUDY DESIGN: A retrospective analysis of prospectively-collected data from a large single center cohort of patients undergoing STEP procedure was analyzed. Baseline demographic and clinical information, operative data, and short- and long-term complications were recorded. Detailed growth and nutritional data were obtained for 6 months prior and 12 months following STEP procedure. RESULTS: Sixty-eight procedures were performed in 51 patients over a 68-month period. Median bowel length at first STEP was 51 cm with a median length gain of 54%. Repeat STEP patients had longer initial length (77 cm) and reduced length gain (20%). Operative times and blood loss were low, with few complications. Parenteral calorie requirement was stable or rising for 6 months prior to STEP, but decreased to median <20 kCal/kg/d at 1 year postop. Longer length gains were associated with higher risk of stricture formation. Seven children were transplanted, and 60% of nontransplanted children were enterally independent, with the remainder making ongoing progress; 48/51 children are alive at a median of 39 months follow-up. CONCLUSIONS: STEP is shown to be safe, well tolerated, and to have definitive benefit in reducing parenteral calorie requirements over the first year following the procedure. It has an important role in achieving enteral independence in children with short bowel syndrome.

Síndrome do intestino curto: uma nova alternativa de tratamento cirúrgico / Short-bowel syndrome: a new alternative for surgical treatment

INTRODUÇÃO: A síndrome do intestino curto resulta de comprimento total de intestino delgado inadequado para manter a nutrição, e assim, os pacientes tornam-se cronicamente dependentes de nutrição parenteral total. Numerosas estratégias cirúrgicas foram estudadas para restabelecer a função intestinal normal. OBJETIVO: Propor a utilização da inversão de segmento de alça associada à STEP - Serial Transverse Enteroplasty - para aumentar a área absortiva intestinal em pacientes com síndrome do intestino curto. MÉTODO: Os autores descrevem uma nova alternativa para o tratamento cirúrgico da síndrome do intestino curto, demonstrando sua facilidade e eficiência para o objetivo proposto. RESULTADOS: As duas técnicas associadas permitiram alongar a alça intestinal em 2,6 vezes do comprimento original, com posterior ganho de peso, redução do número de evacuações para uma exoneração ao dia e melhora da qualidade de vida social e psicológica. CONCLUSÃO: Essa técnica de inversão de segmento de alça intestinal e posterior STEP surge como tratamento eficiente e definitivo à síndrome do intestino curto de forma promissora e segura permitindo retorno à alimentação por via oral com satisfatória absorção de nutrientes e ganho de peso, retorno da motilidade efetiva intestinal, associada à baixa morbidade e melhoria da qualidade de vida social e psicológica. Apesar de requerer várias cargas de grampeadores lineares apresenta baixa morbidade e passa a tornar-se um potencial substituto para o transplante intestinal.

BACKGROUND: The short bowel syndrome results of inadequate total length of small intestine that is not enough to nutrition, and so, the patients become dependents of total parenteral nutrition. Numerous surgical strategies had been studied to reestablish the normal intestinal function. OBJECTIVE: Consider the inversion segment of small intestine associated with STEP - Serial Transverse Enteroplasty - to increase the intestinal absorptive area in patients with short bowel syndrome. METHOD: The authors describe a new alternative for surgical treatment of short bowel syndrome, demonstrating it's easiness and efficiency for the considered objective. RESULTS: The two techniques associated, had allowed lengthening the small intestine in 2,6 times the original length, with posterior profit of weight, reduction the number of evacuations. CONCLUSION: This technique of inversion segment of small intestine and posterior STEP is efficient, appears as definitive and promising technique of treatment to short bowel syndrome allowing return to oral feeding, with satisfactory absorption of nutrients, return to normal intestinal movement, associated to low morbidity and improvement the quality of social and psychological life. It presents low morbidity and is a potential substitute to intestinal transplant.

Fungemia asintomática causada por Acremonium sp asociada a colonización de catéter venoso central (CVC) / Asymptomatic fungemia caused by Acremonium sp associated with colonization of a central venous catheter

Introducción: En años recientes se ha reportado que los pacientes inmunocomprometidos presentan infecciones por organismos considerados habitualmente como saprófitos. Material y métodos: Detectamos un caso de fungemia por Acremonium sp. en un paciente asintomático, 5 semanas después apareció un segundo caso. Ambos pacientes portaban catéter venoso central (CVC) de larga estancia y acudían a la sesión semanal de cuidados que lleva a cabo el Equipo de Terapia Intravenosa. Los dos pacientes recibieron nutrición parenteral total (NPT) durante 5 meses antes del diagnóstico de fungemia. Se estudiaron en forma retrospectiva todos los pacientes que habían recibido NPT durante el mismo periodo de tiempo. Resultados: Los dos casos de fungemia por Acremonium sp. en pacientes con adenocarcinoma gástrico habían recibido NPT por un promedio de 19 días. Se retiró el CVC y recibieron tratamiento antifúngico con resolución de la infección. Otros 8 pacientes que habían recibido NPT preparado por la misma casa comercial durante este periodo por un promedio de 9.5 días (rango 6 a 20). No se encontró ningún otro hemocultivo ni punta de catéter con Acremonium sp. Conclusiones: Se sugiere mantener una estrecha vigilancia en los pacientes con CVC que reciben NPT para identificar la colonización por gérmenes de baja patogenicidad, aún en pacientes asintomáticos.

BACKGROUND: Microorganisms considered saprophytes have emerged as invasive or indolent pathogens among immuno-compromised patients. MATERIAL AND METHODS: We detected an initial case of catheter-related Acremonium sp fungemia on a previously asymptomatic patient. We diagnosed a second case five weeks later. Both patients had a non-tunneled central venous catheter (CVC) that had been cared for following routine protocol by nurses in the Intravenous Therapy Team on a weekly basis. The sole risk factor that both patients shared was that they had received total parenteral nutrition (TPN) by a CVC 5 months prior to the date the catheter-related fungemia was detected. We retrospectively studied all patients who had received TPN during this period. RESULTS: We found two cases ofAcremonium fungemia, patients had gastric adenocarcinoma and received TPN for an average of 19 days. Infection was resolved with catheter removal and antifungic therapy. Another eight patients received TPN from the same commercial firm during this period; average administration was 9.5 days (range, 6-20). Neither blood cultures nor tip-catheters culture reported Acremonium sp. CONCLUSIONS: Patients with CVC for TPN should be closely monitored to identify colonization with a low pathogenic microorganism that could be mistakenly diagnosed as asymptomatic.

Soporte nutricional en pacientes con pancreatitis aguda grave / Nutritional support in patients with severe acute pancreatitis

La pancreatitis aguda, especialmente en su forma grave, está asociada con una respuesta inflamatoria sistémica que lleva a un estado de hipermetabolismo e hipercatabolismo, en el que se requiere un excelente soporte nutricional que permita mantener la integridad estructural y la función de los órganos vitales con un estímulo mínimo de la secreción pancreática.La nutrición parenteral total era el soporte de elección, que permitía obtener todos los beneficios de la nutrición temprana sin estimular la secreción pancreática; pero la evidencia actual muestra mayores beneficios con la nutrición enteral, porque se asocia con menos complicaciones infecciosas y metabólicas y con disminución en los costos. Por ello las guías actuales de tratamiento de la pancreatitis aguda grave recomiendan como primera elección el soporte nutricional enteral.