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1.
Bol. pediatr ; 64(267): 29-38, 2024. tab
Article in Spanish | IBECS | ID: ibc-232574

ABSTRACT

Las enfermedades metabólicas hereditarias (EMH) constituyen un grupo diverso y complejo de trastornos genéticos que, aunque individualmente son poco frecuentes, en su conjunto representan una importante causa de morbilidad y mortalidad. Se lleva a cabo una revisión exhaustiva de la literatura con el objetivo de proporcionar información que oriente la sospecha clínica y el enfoque en los estudios diagnósticos iniciales, cuya clave reside en una anamnesis completa que abarque los antecedentes familiares y obstétricos, junto con una consideración cuidadosa de las manifestaciones clínicas del paciente. Es crucial tener en cuenta la naturaleza multisistémica de estas enfermedades que pueden manifestarse desde el periodo neonatal, generalmente como intoxicaciones agudas, hasta una presentación más insidiosa en adultos jóvenes. Si la evaluación clínica sugiere la posibilidad de una EMH, es fundamental llevar a cabo medidas de apoyo general y realizar investigaciones de laboratorio de manera simultánea. En neonatos, donde la presentación de una EMH puede representar una emergencia médica que requiere una respuesta inmediata, esta acción es especialmente crítica. El diagnóstico de las EMH representa un desafío debido a su variabilidad clínica y sintomatología heterogénea. Sin embargo, la identificación temprana de estas enfermedades es fundamental para iniciar un tratamiento oportuno y mejorar el pronóstico de los pacientes.(AU)


Inherited metabolic diseases (IMDs) constitute a diverse and complex group of genetic disorders that, although individually rare, collectively represent a significant cause of morbidity and mortality. A comprehensive literature review is carried out with the aim of providing information to guide clinical suspicion and the approach to initial diagnostic studies, the key of which lies in a complete medical history encompassing family and obstetric backgrounds, along with careful consideration of the patient’s clinical manifestations. It is crucial to consider the multisystemic nature of these diseases, which can manifest from the neonatal period, usually as acute intoxications, to a more insidious presentation in young adults. If clinical evaluation suggests the possibility of an IMD, it is essential to implement general supportive measures and simultaneously perform laboratory investigations. In neonates, where the presentation of an IMD can represent a medical emergency requiring an immediate response, this action is especially critical. The diagnosis of IMDs poses a challenge due to their clinical variability and heterogeneous symptomatology. However, early identification of these diseases is crucial for initiating timely treatment and improving patient prognosis.(AU)


Subject(s)
Humans , Pediatrics , Metabolic Diseases , Genetic Diseases, Inborn , Mass Screening , Carbohydrate Metabolism
4.
Metabolomics ; 14(10): 131, 2018 09 25.
Article in English | MEDLINE | ID: mdl-30830414

ABSTRACT

INTRODUCTION: Energy deficiency is a cause for myocardial dysfunction during septic shock. In rodents, septic shock decreases the oxidation of long-chain fatty acids and glucose in the myocardium causing energy deficiency. However, the effect of septic shock on myocardial energy metabolites in large animals and human is unknown. OBJECTIVES: Investigate the effects of septic shock on myocardial energy metabolites in domestic pigs. METHODS: Seventeen female pigs divided into control and lipopolysaccharide (LPS)-induced septic shock groups. Myocardial metabolites were analyzed ex vivo by 1H nuclear magnetic resonance spectroscopy and liquid chromatography-tandem mass spectrometry. Gene and protein expression analysis were analyzed by real-time PCR and western blot. RESULTS: Septic shock was associated with an increase in myocardial levels of short- and medium-chain acylcarnitines, lactate, alanine, and pyruvate dehydrogenase kinase 4 gene expression. COX-2 and prostaglandin E4 receptor gene expression also increased in the septic myocardium, although the only elevated eicosanoid in the septic animals was thromboxane B2. Myocardial levels of niacin, taurine, glutamate, glutamine, and glutathione were higher, and hypoxanthine levels lower in septic pigs than controls. CONCLUSIONS: In pigs, septic shock induced by LPS caused myocardial changes directed to decrease the oxidation of medium- and short-chain fatty acid without an effect on long-chain fatty acid oxidation. The increase in myocardial levels of lactate, alanine, and pyruvate dehydrogenase kinase 4 gene expression suggest that septic shock decreases pyruvate dehydrogenase complex activity and glucose oxidation. Homeostasis of niacin, taurine, glutamate, glutamine, glutathione, hypoxanthine and thromboxane B2 is also affected in the septic myocardium.


Subject(s)
Lipopolysaccharides/immunology , Metabolomics , Myocardium/metabolism , Shock, Septic/immunology , Shock, Septic/metabolism , Swine/metabolism , Animals , Female , Proton Magnetic Resonance Spectroscopy
5.
Metas enferm ; 20(9): 5-10, nov. 2017. tab
Article in Spanish | IBECS | ID: ibc-168759

ABSTRACT

Objetivo: determinar las diferencias a lo largo de los tres años en el manejo de las vías centrales de bebés prematuros menores de 1.500 gramos. Método: estudio descriptivo longitudinal retrospectivo en bebés de < 1.500 gramos ingresados en la UCI neonatal del CHUS de Santiago de Compostela, entre enero del año 2012 y diciembre de 2014. Variables de estudio: sexo, edad gestacional, peso, fecundación in vitro (FIV), gemelaridad, vía de finalización del parto, canalización o no de vía central, tipo de vía central, localización, duración, causa de retirada, tipo de germen aislado en el cultivo y exitus o no del bebé. Para el contraste de hipótesis se utilizó Anova y Chi cuadrado. Resultados: se estudiaron 120 bebés, siendo la media de edad gestacional de 29,8 semanas y el peso medio al nacimiento de 1.148 gramos. En 62 bebés (51,6%) se insertó una vía central, siendo la de primera elección la vía umbilical, con un tiempo medio de permanencia de seis días, seguido del PICC, con una permanencia media de ocho días y de localización más habitual en el miembro superior, seguida del miembro inferior y la cabeza. La causa más común de retirada de la vía central fue la electiva, debido a la finalización del tratamiento, y la contaminación más frecuente el Estafilococo epidermidis. En el periodo de estudio se encontró una leve disminución, estadísticamente significativa (p= 0,033). Conclusiones: el acceso vascular central se muestra como la principal vía de manejo del gran prematuro menor de 1.000 gramos de peso, siendo la vía umbilical la de primera elección, seguido del PICC. Aproximadamente la mitad de los bebés tuvo una vía central (AU)


Objective: to determine any differences in the management of central lines in preterm babies weighing less than 1,500 grams, during a 3-year period. Method: a descriptive longitudinal retrospective study in babies <1,500 grams admitted to the neonatal ICU at the Santiago de Compostela CHUS, between January, 2012 and December, 2014. Study variables: gender, gestational age, weight, IVF, multiple birth, type of child delivery, central venous catheterization or not, type of central line, location, duration, cause for removal, type of germ isolated in culture, and baby exitus or not. Anova and Chi Square tests were used for hypothesis contrast. Results: the study included 120 babies, with a mean gestational age of 29.8 weeks and 1,148 grams as mean weight at birth; 62 babies (51.6%) had a central line inserted, with umbilical access as first choice, for a mean period of six days, followed by peripheral catheterization, for a mean period of eight days, and the most frequent location was upper limb, followed by lower limb and head. The most frequent cause for removal of the central line was elective, due to treatment completion, and the most frequent contamination was by Staphylococcus Epidermidis. During the period of the study, a mild reduction was found, which was statistically significant (p= 0.033). Conclusions: central vascular access appears as the main pathway for management in preterm babies weighing less than 1,000 grams, with umbilical access as first choice, followed by peripheral catheterization. Approximately half of male and female babies had a central line inserted (AU)


Subject(s)
Humans , Infant, Newborn , Infant , Infant, Premature/physiology , Infant, Premature, Diseases/diagnosis , Infant, Premature, Diseases/therapy , Central Venous Catheters , Retrospective Studies , Longitudinal Studies , Gestational Age , Analysis of Variance , Staphylococcus epidermidis/isolation & purification , Infant, Low Birth Weight/physiology , Cross-Sectional Studies/methods
6.
Metas enferm ; 18(5): 56-59, jun. 2015.
Article in Spanish | IBECS | ID: ibc-140257

ABSTRACT

La hipotermia neonatal activa constituye un avance terapéutico en casos de encefalopatía hipóxico-isquémica (EHI) en el recién nacido y consiste en disminuir la temperatura corporal en 3-4 ºC en las primeras seis horas de vida, manteniéndose durante 72 horas, al cabo de las cuales tiene lugar el recalentamiento progresivo (0,5 ºC/hora). Esta terapia mejora la morbimortalidad de estos pacientes, al favorecer la neuroprotección, dado que disminuye el metabolismo cerebral, la apoptosis y la formación de radicales libres de oxígeno. Este tratamiento con frío puede producir complicaciones graves como alteraciones en la coagulación, arritmias, hipotensión, hiperglucemia, entre otras. En este artículo se expone la actuación ante un paciente con EHI, así como los cuidados de Enfermería a los pacientes sometidos a hipotermia inducida, y específicamente la vigilancia y control a llevar a cabo para que no se produzcan las complicaciones potenciales vinculadas a este tratamiento


Active neonatal hypothermia represents a therapeutic advance for Hypoxic-Ischemic Encephalopathy (HIE) cases in newborns, and it involves reducing the body temperature in 3-4ºC during the first 6 hours of life, and sustaining this during 72 hours, after which a progressive warming will take place (0.5 ºC/hour).This therapy improves the morbimortality in these patients, by encouraging neuroprotection, because it reduces the brain metabolism, the apoptosis, and the formation of oxygen-free radicals. This treatment with cold can cause severe complications such as coagulation alterations, arrhythmias, hypotension, and hyperglycemias, among others. This article describes the action taken for a patient with HIE, as well as Nursing care for patients subject to induced hypothermia, and specifically the monitoring and control to be conducted in order to avoid any of the potential complications linked with this treatment


Subject(s)
Humans , Infant, Newborn , Asphyxia Neonatorum/therapy , Hypoxia-Ischemia, Brain/therapy , Hypothermia, Induced/methods , Nursing Assessment/methods , Nursing Care/methods
8.
Metas enferm ; 17(9): 65-68, nov. 2014. ilus
Article in Spanish | IBECS | ID: ibc-131515

ABSTRACT

La extrofia vesical (EV) es una alteración congénita poco frecuente que consiste en la protrusión de la vejiga sobre la pared abdominal, lo que requiere una compleja y rápida intervención quirúrgica, muchas veces por un equipo multidisciplinar. Es una enferme-dad rara, se presenta en uno de cada 35.000-40.000 nacimientos y es más frecuente en varones. Aunque su etiología no está muy definida, parece haber una predisposición genética. Se produce por un defecto de la migración de las células del mesénquima infraumbilical que dará lugar a la pared abdominal inferior, los tubérculos genitales y las ramas púbicas. El tratamiento de la EV es quirúrgico y muchas veces en varias etapas. Uno de los problemas de estos pacientes es el control de esfínteres, una vez intervenidos. Los niños sometidos a cirugía reparadora en el momento del nacimiento obtienen mejores resultados en la continencia urinaria, que es uno de los grandes problemas. Los cuidados enferme-ros pre y postquirúrgicos son muy importantes para la recuperación de estos pacientes, ya que permanecerán varios días inmovilizados para lograr el correcto cierre de la vejiga


Vesical Exstrophy (VE) is a rare congenital alteration which consists in the protrusion of the bladder through the abdominal wall, and it requires a complex and fast surgical intervention, often by a multidisciplinary team. This is a rare disease, which appears in one out of 35,000-40,000 newborns, and it is more frequent in males. Even though its etiology is not very well defined, there seems to be a genetic predisposition. It occurs due to a defect of migration in the infraumbilical mesenchyma cells, which will lead to the formation of the lower abdominal wall, genital tubercles and pubic branches. The treatment for VE is surgical, and often in various stages. One of the problems in these patients is sphincter control, once they have undergone surgery. Children who undergo reconstructive surgery at the time of birth will achieve better results regarding urinary incontinence, which is one of the great problems. Nursing care before and after surgery is very important for the recovery of these patients, because they must remain immobile during several days in order to achieve an adequate bladder closure


Subject(s)
Humans , Male , Female , Infant, Newborn , Bladder Exstrophy/epidemiology , Epispadias/epidemiology , Nursing Care/methods , Genetic Predisposition to Disease , Urinary Incontinence/prevention & control , Surgical Wound Dehiscence/epidemiology
9.
An Pediatr (Barc) ; 81(6): 397.e1-8, 2014 Dec.
Article in Spanish | MEDLINE | ID: mdl-25106928

ABSTRACT

Clinical practice guidelines are an important tool for improving healthcare. In recent years there has been accumulating evidence on the impact of nutritional supplementation with probiotics in the very low birth weight infants. With no uniformity in microorganisms and strains used. The Spanish Neonatology Society (SENeo), through its Nutrition and Metabolism Group has undertaken to develop recommendations that will be useful as a guide for the neonatologist in this field.


Subject(s)
Dietary Supplements , Infant, Very Low Birth Weight , Probiotics/therapeutic use , Enterocolitis, Necrotizing/prevention & control , Humans , Infant, Newborn , Neonatology/standards
11.
An Pediatr (Barc) ; 81(2): 120-4, 2014 Aug.
Article in Spanish | MEDLINE | ID: mdl-24113118

ABSTRACT

The effectiveness of antenatal corticosteroid therapy for foetal lung maturation in pre-term infants is well known, but there is uncertainty about the time that the treatment remains effective. A descriptive, longitudinal study was conducted to determine whether the need for surfactant administration was determined by the time-lapse between corticosteroids administration and delivery, and when repeating the doses of maternal corticosteroids should be considered. A total of 91 premature infants ≤32 weeks and/or ≤1,500 g (limit 34+6 weeks) whose mothers had received a complete course of corticosteroids were included. In patients at 27-34+6 weeks, we found that the longer the time elapsed between delivery and administration of corticosteroids, most likely were the babies to require treatment with surfactant (P=.027). The resulting ROC curve determined an 8-days cut-off after which repeating a dose of corticosteroids should be assessed.


Subject(s)
Betamethasone/therapeutic use , Glucocorticoids/therapeutic use , Prenatal Care , Respiratory Distress Syndrome, Newborn/prevention & control , Female , Humans , Longitudinal Studies , Male , Pregnancy
13.
Metas enferm ; 16(9): 49-52, nov. 2013. ilus
Article in Spanish | IBECS | ID: ibc-117924

ABSTRACT

El uso de catéteres centrales de inserción periférica (epicutáneos) se ha convertido en una práctica de rutina en las Unidades de Cuidados Intensivos Neonatales por su facilidad de inserción su baja incidencia de complicaciones en comparación con otros catéteres centrales. Sin embargo, esto no significa que la utilización de los catéteres epicutáneos esté exenta de riegos. En este artículo, a partir de la descripción de dos casos de derrame pleural relacionados con la migración del catéter epicutáneo, se pretende llamar la atención de las enfermeras de cuidados neonatales sobre la importancia de extremar la vigilancia y elcontrol del neonato portador de epicutáneo para evitar las posibles complicaciones (AU)


The use of central catheters with peripheral (epicutaneous) insertion has become a routine practice in the Neonatal Intensive Care Units, due to its easy insertion and the low incidence of complications compared with other central catheters. However, this does not mean that using epicutaneous catheters won’t entail any risks. In this article, starting with the description of two pleural effusion cases associated with epicutaneous catheter migration, we intend to point out to Neonatal Care Nurses the importance of being extremely watchful and controlling the neonate with an epicutaneous catheter, in order to prevent potential complications (AU)


Subject(s)
Humans , Male , Female , Infant, Newborn , Drug Administration Routes , Central Venous Catheters/adverse effects , Pleural Effusion/etiology , Risk Factors , Intensive Care, Neonatal/methods , Foreign-Body Migration/complications
14.
Acta pediatr. esp ; 71(5): 133-133[e113-e118], mayo 2013. ilus
Article in Spanish | IBECS | ID: ibc-114103

ABSTRACT

El meduloblastoma congénito es uno de los tumores intracraneales más frecuentes en la edad pediátrica; sin embargo, su presentación es poco frecuente antes de los 2 meses de vida. Presentamos el caso deun recién nacido con un meduloblastoma congénito gigante, con sintomatología en el periodo neonatal inmediato y de localización atípica. Este tipo de tumor debe ser tenido en consideración al realizar el diagnóstico diferencial de la hidrocefalia congénita (AU)


Congenital medulloblastoma is one of the most frequent pediatric intracranial tumors, however, it is unusual its presentation before the two months of life. We are presenting the case of a new-born infant with a giant congenital medulloblastoma, with symptoms in the immediate neonatal period and atypical location. This kind of tumor must be taken on account when making a differential diagnosis of congenital ventricular hydrocephalus (AU)


Subject(s)
Humans , Female , Infant, Newborn , Medulloblastoma/complications , Medulloblastoma/diagnosis , Diagnosis, Differential , Brain Neoplasms/complications , Brain Neoplasms/diagnosis , Hydrocephalus/congenital , Hydrocephalus/complications , Bradycardia/complications , Heart Rate/physiology , Paresis/complications , Electroencephalography/instrumentation , Electroencephalography/methods , Neuroimaging , Brain Neoplasms/physiopathology , Brain Neoplasms
15.
An. pediatr. (2003, Ed. impr.) ; 76(3): 127-132, mar. 2012. graf, tab
Article in Spanish | IBECS | ID: ibc-97629

ABSTRACT

Introducción: El retraso de crecimiento postnatal es frecuente en los recién nacidos pretérmino (RNPT) de bajo peso. La administración precoz de proteínas en su nutrición parece mejorar el crecimiento extrauterino y las comorbilidades asociadas. Evaluamos el impacto sobre el crecimiento posnatal de un nuevo protocolo de nutrición parenteral con aporte precoz de aminoácidos en recién nacidos < 1.500g. Material y métodos: Estudio observacional de casos-controles sobre una muestra de 58 RNPT < 1.500g. El grupo de casos lo formaron 29 RNPT que recibieron al menos 1,5g/kg/día de aminoácidos vía parenteral en las primeras 24h de vida, con aumentos diarios hasta alcanzar al menos 3,5g/kg/día al 3.°-4.° día, comparándose con un grupo control de 29 RNPT en los que el aporte de aminoácidos se inició el 2.°-3.° día de vida a 1g/kg/día, con incrementos menores diariamente. Valoramos la evolución somatométrica de ambos en el primer mes de vida. Resultados: No había diferencias en las características basales (sexo, edad gestacional, parámetros somatométricos) entre ambos grupos. Los RNPT que recibieron proteínas a dosis mayores y más precozmente tuvieron una ganancia de peso significativamente mayor que el grupo control (423±138g vs. 315±142g; p=0,005), presentando también una mayor velocidad de ganancia ponderal diaria (19,4±3,3 vs. 16,5±4,8; p=0,010) y una recuperación más precoz del peso al nacimiento (11,5±3,3 días vs. 14,5±4,5 días; p=0,045). No se observó mayor incidencia de complicaciones. Conclusiones: El aporte precoz de aminoácidos a dosis más altas mejora la ganancia ponderal en RNPT sin observarse un riesgo añadido para el paciente(AU)


Introduction: Extrauterine growth restriction affects most premature newborns. Early and higher parenteral protein intake seems to improve postnatal growth and associated comorbidities. We evaluate the impact of a new parenteral nutrition protocol based on early amino acid administration on postnatal growth in premature infants with a birth weight < 1,500 grams. Material and methods: A case-control study in 58 premature newborns with a birth weight < 1,500 grams. In the case group we included 29 preterm neonates who received at least 1.5g/kg/day parenteral amino acid during the first 24hours after birth, reaching a maximum dose of 3.5g/kg/day on the 3rd-4th day after birth. The control group was formed by 29 preterm neonates for whom protein support began on the 2nd-3rd day after birth with a dose of 1g/kg/day with lower daily increases than the case group. Growth rates and complications were followed until 28 days of life or discharge from NICU. Results: There were no differences between groups in baseline characteristics. Premature newborns who received higher and earlier doses of proteins had a greater weight gain than the control group, and this difference was statistically significant (423±138g vs. 315±142g; P=.005). In addition, they had a higher daily weight gain rate (19.4±3.3 vs. 16.5±4.8; P=.010) and they regained birth weight earlier (11.5±3.3 days vs. 14.5±4.5 days; P=.045). A higher incidence of complications was not observed. Conclusions: Early and higher amino acid administration improves growth rate in premature neonates with no apparent increase in risks for the patient(AU)


Subject(s)
Humans , Infant, Premature/growth & development , Amino Acids/administration & dosage , Parenteral Nutrition/methods , Dietary Proteins/administration & dosage , Risk Factors
16.
Acta pediatr. esp ; 70(3): 120-122, mar. 2012. tab, ilus
Article in Spanish | IBECS | ID: ibc-99243

ABSTRACT

La utilización de catéteres venosos centrales en las unidades de cuidados intensivos neonatales es una práctica habitual no exenta de complicaciones. Dentro de dichas complicaciones, las más frecuentes son las de tipo infeccioso, aunque no podemos desdeñar las de tipo mecánico y trombótico. La incidencia de trombosis ligada al catéter es variable, y la actitud que cabe tomar ante dicho cuadro sigue siendo controvertida en el periodo neonatal. Presentamos el caso de un recién nacido a término que, debido a su patología de base, precisó un acceso venoso central mediante canalización umbilical. Al tercer día de vida se detectó por ecocardiografía la existencia de un trombointra auricular derecho, que se resolvió mediante tratamiento fibrinolítico local con activador tisular del plasminógeno recombinante, administrado a través de catéter silástico central, sin observarse complicaciones mayores(AU)


The use of central venous catheters in the intensive neonatal care units is a common practice not without complications, being infections its most common type, although mechanic and thrombotic ones are also common. The incidence of thrombosis related to catheter varies, and the attitude in the neonatal period remains controversial. We are discussing a case of a term new born suffering from a previous pathology, and central venous access via umbilical pipe was required. On its third day of life, the newborn was detected a right a trial thrombus by means of echocardiography, that was resolved with local thrombolytic therapy with r TPA, administered through central silastic catheter with no further complications observed(AU)


Subject(s)
Humans , Male , Infant, Newborn , Thrombosis/etiology , Catheters/adverse effects , Catheterization, Central Venous/adverse effects , Fibrinolytic Agents/administration & dosage , Umbilical Cord , Heart Atria , Plasminogen Activators/therapeutic use
19.
An. pediatr. (2003, Ed. impr.) ; 72(3): 179-184, mar. 2010. tab, ilus
Article in Spanish | IBECS | ID: ibc-78511

ABSTRACT

Introducción: El exceso de metionina puede ser causa de alteraciones del sistema nervioso central, tales como edema cerebral difuso y trastornos de la mielinización. Pacientes y método: Estudio ambispectivo observacional durante un período de 15 meses de los recién nacidos prematuros ingresados en nuestro hospital que presentaron hipermetioninemia en las pruebas de cribado neonatal por espectrometría de masas en tándem. Seguimiento evolutivo de estos neonatos hasta el año de edad con valoración de sus niveles de metionina en relación con la alimentación, parámetros somatométricos y desarrollo neurológico. Resultados: De una población de estudio de 187 neonatos pretérmino, 16 de ellos presentaron hipermetioninemia aislada. El peso y la alimentación de estos recién nacidos con una fórmula de inicio especial enriquecida en metionina está relacionada con el aumento del número de casos de hipermetioninemia aislada transitoria (el 62,6% recibieron un aporte de metionina superior a 97mg/kg/día), además se halló una correlación estadísticamente significativa entre los días que los pacientes recibían esa fórmula y el tiempo que tardaron en normalizarse las cifras de metionina en plasma (r: 0,791; p: 0,000). No observamos correlación entre las cifras máximas de metionina alcanzadas en plasma y la puntuación obtenida en el test de Brunet Lézine a los 6 meses de edad corregida. Conclusiones: Este estudio pone de relevancia la importancia del suplemento de aminoácidos, concretamente de metionina, en las leches de fórmula de los recién nacidos prematuros por la trascendencia que pueden suponer para su desarrollo neurológico (AU)


Introduction: Excess methionine can cause central nervous system disorders such as diffuse cerebral edema and disorders of myelin. Patients and method: A retrospective and prospective (ambispective) observational study in preterm newborns admitted to our hospital over a period of 15 months and who had hypermethioninemia in neonatal screening tests by tandem mass spectrometry. The progress of these infants was monitored during the first year of life, assessing their methionine levels, diet, somatometric parameters and neurodevelopment. Results: From a study population of 187 preterm infants, 16 of them showed isolated hypermethioninemia. Weight and feeding the babies with a special formula enriched with methionine is related to an increased number of cases of transient isolated hypermethioninemia (62.6% received a higher contribution of methionine than 97mg/kg/day). We also found a statistically significant correlation between the days that patients received the formula and the time it takes to normalize the levels of methionine in plasma (R 0.791, p=0.000). There was no correlation between the methionine peak reached in plasma and the score on the Brunet Lézine test, at the corrected age of 6 months. Conclusions: This study highlights the importance amino acid supplements, particularly methionine, in premature infants’ formulas due to the impact they may have on neurological development (AU)


Subject(s)
Humans , Male , Female , Infant, Newborn , Methionine/adverse effects , Methionine/analysis , Infant, Premature, Diseases/diagnosis , Infant, Premature , Amino Acids, Essential/analysis , Amino Acids, Essential/metabolism , Amino Acid Metabolism, Inborn Errors/epidemiology , Parenteral Nutrition, Total , Mass Screening/methods , Signs and Symptoms , Amino Acid Metabolism, Inborn Errors/diagnosis , Mass Spectrometry
20.
An Pediatr (Barc) ; 72(3): 179-84, 2010 Mar.
Article in Spanish | MEDLINE | ID: mdl-20117063

ABSTRACT

INTRODUCTION: Excess methionine can cause central nervous system disorders such as diffuse cerebral edema and disorders of myelin. PATIENTS AND METHOD: A retrospective and prospective (ambispective) observational study in preterm newborns admitted to our hospital over a period of 15 months and who had hypermethioninemia in neonatal screening tests by tandem mass spectrometry. The progress of these infants was monitored during the first year of life, assessing their methionine levels, diet, somatometric parameters and neurodevelopment. RESULTS: From a study population of 187 preterm infants, 16 of them showed isolated hypermethioninemia. Weight and feeding the babies with a special formula enriched with methionine is related to an increased number of cases of transient isolated hypermethioninemia (62.6% received a higher contribution of methionine than 97mg/kg/day). We also found a statistically significant correlation between the days that patients received the formula and the time it takes to normalize the levels of methionine in plasma (R 0.791, p=0.000). There was no correlation between the methionine peak reached in plasma and the score on the Brunet Lézine test, at the corrected age of 6 months. CONCLUSIONS: This study highlights the importance amino acid supplements, particularly methionine, in premature infants' formulas due to the impact they may have on neurological development.


Subject(s)
Infant, Premature, Diseases/blood , Metabolic Diseases/blood , Methionine/blood , Female , Humans , Infant Formula , Infant, Newborn , Male , Prospective Studies , Retrospective Studies
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