Archivos argentinos de pediatria最新文献

Primary liver tumors are an increasing indication for pediatric liver transplantation. Here we report the cases of 10 patients who underwent liver transplantation for primary liver tumors in our hospital, from 2001 to date. Up to 2011, 1 transplant due to hepatoblastoma was done out of 117 liver transplants (0.8%). Since 2012, there were 9 patients out of 141 (6.4%) (5 due to hepatoblastoma, 2 due to hepatocellular carcinoma, 1 due to hepatic epithelioid hemangioendothelioma, and 1 due to hepatic mesenchymal hamartoma). Follow-up: 13.2 months (median); age at transplantation: living 4.7 years (median); weight: 17.6 kg (median). Eighty percent of patients received grafts from living donors. No tumor recurrence was observed. Survival was 100% in the follow-up period. In our series, patients with primary liver tumors requiring transplantation showed an adequate course, even in the case of hepatocellular carcinoma, Related living donors liver transplantation shortened the time between the indication and the surgery.

Enteral formulas containing fiber, designed to be administered orally or by gavage, have been used for decades. Although their indication in the pediatric population does not have a global consensus, knowledge about the benefits of using fiber to promote healthier microbiota has grown in recent years. Different fiber types' physicochemical characteristics (solubility, viscosity, fermentability) determine their functions. The impact of fiber use on preventing specific chronic pathologies (cardiovascular disease, cancer, diabetes) has been reported in epidemiological studies. In controlled studies, changes in stool consistency, intestinal transit, and the composition and function of the microbiota have been observed since fiber produces fermentation metabolites such as short-chain fatty acids, which improve metabolic and immunological aspects. Different pediatric pathologies could benefit from the use of fiber.

Introduction. Hypoxic-ischemic encephalopathy (HIE) caused by lack of oxygen and perfusion to the brain can lead to acute neurological damage in newborns. Therapeutic hypothermia (TH) is the most effective and safest treatment. However, mortality remains high with numerous long-term sequelae. Cellular therapies, particularly umbilical cord blood (UCB), are being studied as alternative therapies. The aim of this study is to assess the feasibility and safety of combining autologous cord blood cell infusion with moderate hypothermia. Population and methods. Twelve infants of 36 weeks gestational age or older, diagnosed with moderate or severe HIE and with umbilical cord blood (UCB) collected were included. UCB was volume-reduced, and up to four doses were obtained. These doses were infused within the first 72 postnatal hours. Time to the first infusion and possible adverse reactions to the infusion were evaluated. Results. Between 2014 and 2019, 12 infants were included in the protocol (TH + UCB), 9 with a diagnosis of moderate HIE and 3 with severe HIE. In all cases, at least one dose of UCB was obtained for infusion. In all cases, the first dose was infused within 24 hours in every case, and no adverse reactions attributable to the infusion were observed. Conclusions. The collection, processing, and infusion of fresh autologous umbilical cord blood for use in newborns with HIE are feasible and safe under our conditions.

Western equine encephalitis (WEE) is a zoonotic disease caused by an RNA virus of the genus Alphavirus, and humans are accidental hosts. Although most patients do not develop symptoms upon infection, children are at higher risk for neurological involvement. Here we describe the case of a previously healthy 13-year-old male patient who lived in an urban area in the province of Buenos Aires, Argentina, who was hospitalized and diagnosed with meningoencephalitis. Due to the torpid course of his condition and because none of the most frequent microorganisms were isolated, a test for IgG antibodies for WEE virus in blood and cerebrospinal fluid was requested; both samples were positive. WEE virus is often an underdiagnosed cause of encephalitis and should be taken into consideration in both rural and urban areas.

Introduction: Cyanide poisoning, whether it be accidental or intentional, remains a significant danger to adults and children, especially in societies where agriculture is a primary source of income. We examined the clinical follow-up, complications, and results of cyanide poisoning cases that occurred after eating the pits and seeds of plants containing cyanide glycosides, such as apricot kernels and almonds. Methods: Between 01/01/2017 and 01/08/2022, 14 children aged 1-18 years who were followed up with a prediagnosis of cyanide poisoning in our Paediatric Intensive Care Unit (PICU) were retrospectively analysed. Results: Eight of the patients followed with a preliminary diagnosis of cyanide poisoning were female and six were male. The most common admission month was July (42.8%) coinciding with the agricultural season. The most common symptoms at presentation were weakness and fatigue (n = 7). In the PICU, 4 patients presented lip cyanosis; 3, altered level of consciousness. Vomiting, seizure, headache, dizziness and palpitatons were less frequent. Four patients were treated with hydroxocobalamin (Cyanokit®) as an antidote due to acidosis in their blood gases. All patients treated for cyanide poisoning were discharged. Conclusions: Cyanide poisoning should be considered in paediatric patients with suspicious findings, sudden loss of consciousness, increased anion gap acidosis and lactic acidosis. The history of eating the seeds of plants such as apricot and almonds should be investigated.

The current document is an update of the recommendations of the Sociedad Argentina de Pediatría based on a bibliographic review of publication from recent years on the use of the monoclonal antibody against respiratory syncytial virus (RSV), palivizumab, in groups of patients at high risk of developing severe respiratory infection. The continuing relevance of RSV as a causative agent of acute lower respiratory infections and hospitalizations are highlighted. The epidemiology of RSV in the country after the COVID-19 pandemic was reviewed. The risk groups in which the use of palivizumab is indicated according to the underlying condition were discussed, as well as aspects of its dosing and future therapeutic options.

Western equine encephalitis (WEE) is vector-borne infection caused by an RNA virus of the genus Alphavirus, disseminated by mosquitoes that can cause WEE in humans. There are two cycles of transmission, a maintenance cycle and an occasional amplification with vector augmentation, where equines and humans are terminal hosts. In Argentina, no human cases had been reported since 1983. Here we describe 2 pediatric patients with brain symptoms and serological diagnosis of WEE. Both samples of cerebrospinal fluid (CSF) showed pleocytosis, while the neuroimaging test showed alterations in the basal ganglia. The serological diagnosis was based on the detection of specific IgM in serum and CSF and neutralizing antibodies 14 days after symptom onset. The patients were managed with supportive treatment. One patient recovered his normal neurological status without seizures before discharge, while the other was discharged with right hemiparesis, which resolved after 2 months, and continued with anticonvulsants due to a pathological EEG.

Introduction. The Internet and social media have revolutionized access to information on health and parenting issues. Virtual consultations are spreading worldwide, are increasing, and represent a challenge for professional practice. Objective. To characterize the use of the Internet and social media by mothers and fathers as a source of information on the health and parenting of their children. Population and methods. A descriptive, cross-sectional study in an outpatient pediatric center in the City of Buenos Aires to determine the online consultation habits of caregivers of healthy children or children with health problems. Results. Two hundred-one surveys were analyzed, and the answers were predominantly from mothers of healthy children; 70.6% search online for health and parenting topics; 80% consult more than once a month. Although 36% of the families use the information to complement the medical consultation, 95% would not replace the pediatric consultation with the online search. The participants are not in the habit of following official pages, nor do they tend to verify the veracity of the contents. The search topics are related to the child's age, and satisfaction with the information results are modified according to whether the child is healthy or has a health problem. Only 4.7% responded that the search always answers their questions. Conclusions. Caregivers frequently seek online parenting and health information, but the sources are not always reliable. Although consultation with pediatricians is not displaced, we need to know the impact of online information on health decision-making. Pediatricians can intervene and guide caregivers to safe sources.

Introduction. The trans population in Argentina represents 0.43%. Our objective was to describe the characteristics of trans and non-binary children and adolescents. Population and methods. A cross-sectional study was designed. The population was all trans or nonbinary persons under 24 years of age seen by an interdisciplinary team in a tertiary university hospital from January 2019 to May 2023. The sample was obtained from the database of patients seen by reviewing electronic medical records (EMR). Results. The EMRs of 107 individuals were analyzed; the average age at first consultation was 15.3 years, and the age of self-perceived transgender identity was 11.1 years. Seventy-two percent perceived themselves as having a trans male identity; in 89.7%, their gender expression was by their self-perception, and 46.3% had a bisexual sexual orientation. Seventy-six percent acknowledged having family support; 87.3%, school support; and 92.5%, peer support. 44.8% had a hormonal strategy, 14.1% had surgery, 57.1% had mental health intervention, and 29.1% received psychiatric medication. Only three patients (2.8%) detransitioned their gender identity. Conclusion. Most individuals were trans men and perceived good support from their environments. Almost half received a hormonal strategy; less than a quarter received a surgical intervention; more than half received a mental health intervention. The detransition was infrequent.

Childhood-onset systemic lupus erythematosus (cSLE) is a multisystem disease; its severity depends on the organs involved. Monogenic diseases have been described as predisposing to the onset of cSLE. Analytical and immunological tests are used for diagnostic confirmation. The main goal of treatment is remission and flare prevention. Here we describe the clinical case of a patient with prolonged febrile syndrome, arthralgias, and anemia, positive analytical tests for antinuclear antibodies and anti-DNA antibodies and low values of complement C3, C4, and C1q; so the patient was diagnosed with cSLE associated with C1q deficiency. Patients with C1q deficiency present with early onset of disease and significant target organ damage with nephritis. An early diagnosis of cSLE is important to ensure an early and appropriate treatment. Treatment may be personalized depending on the underlying defect that generates the subtype of lupus.