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PURPOSE: To report the functional results of our experience and to describe intraoperative findings and complications due to the techniques used in our service. METHODS: From January 2018 to December 2022, 27 Pediatric patients aged from 8 to 16 years underwent surgery to treat proximal humerus fractures. Their demographic characteristics were evaluated, as well as their clinical characteristics on admission, type of reduction (closed/open), presence of interposition in open reductions, type of implant, complications, and functional range of movement according to two shoulder functional scores. RESULTS: Mean age was 11.2 years (8-15), there was a predominance of males, who accounted for 70% of the cases, and sports accidents were the cause of injury in 44% of the cases. Anatomical location was balanced between patients, including 55% of physeal fractures and 45% of metaphyseal ones. Overall, 81.5% of patients required open reduction to achieve axis correction, and that 55.5% of fractures were fixed with Kirschner wires, and 44, 4% with elastic titanium nails. Mean QuickDASH score was 0.58 (0-1.7), and Constant score was 9 (3-24). There were no major complications, but 27% of cases subjected to open reduction presented a hypertrophic scar. CONCLUSION: Surgical treatment of severely displaced proximal humerus fractures is successful, both with closed and open reduction; type of implant does not play a key role and should be selected based on the characteristics of each case. Surgical training should prevail at the time of decision-making. When these recommendations are followed, results can be excellent and sequelae are infrequent.

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Resumen La metahemoglobinemia ocasionalmente causa cianosis, particularmente cuando es congénita. Debido a sus vías enzimáticas deficientes y a la disminución de la capacidad de transporte de oxígeno, para los pacientes con metahemoglobinemia congénita es importante evitar la exposición a agentes oxidantes. A continuación, presentamos un paciente pediátrico con metahemoglobinemia congénita no diagnosticada preoperatoriamente que fue sometido a cateterismo con diagnóstico probable de hipertensión pulmonar bajo anestesia general. El paciente pediátrico era un niño de 10 años que presentaba una lectura de oximetría de pulso (SpO2) 92% antes de la inducción de la anestesia. La metahemoglobinemia se sospechó intraoperatoriamente por primera vez debido a un desajuste de la SpO2 de la oximetría de pulso digital y la SaO2 (saturación arterial de oxígeno), y luego se confirmó mediante múltiples longitudes de onda con la CO-oximetría. Se discuten la fisiopatología, etiología, manifestaciones clínicas, consideraciones anestésicas y opciones de tratamiento de la metahemoglobinemia.

Abstract Methemoglobinemia occasionally causes cyanosis particularly in congenital methemoglobinemia. Avoidance of exposure to oxidizing agents is important for patients with congenital methemoglobinemia because of their deficient enzymatic pathways and decreased oxygen-carrying capacity. Here, we present a pediatric patient with preoperatively undiagnosed congenital methemoglobinemia who underwent catheterization with probably diagnosis of pulmonar hypertension under general anesthesia. The pediatric patient was a 10-year-old who displayed a low pulse oximetry reading of 92% prior to induction of anesthesia. Methemoglobinemia was first suspected intraoperatively because of a mismatch of SpO2 of finger pulse oximetry and SaO2 of arterial blood, and was later confirmed by multiplewavelength CO-oximetry. The pathophysiology, etiology, clinical manifestations, anesthetic considerations, and treatment options of methemoglobinemia are discussed.

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Abstract Objective: Medical advances have resulted in increased survival rates of neurologically impaired children who may require mechanical ventilation and subsequent tracheostomy as a surgical airway. However, at present, there is no definite consensus regarding the timing and methods for placement of a surgical airway in a neurologically impaired intubated child who needs to be cared for over a long-term period. We therefore created a flowchart for the selection of a surgical airway for Neurologically Impaired Pediatric Patients (NIPPs). Methods: The flowchart includes information on the patients' backgrounds, such as intubation period, prognosis related to reversibility, and history of aspiration pneumonia. To evaluate the importance of the flowchart, first we conducted a survey of pediatricians regarding selection of a surgical airway, and we also evaluated the appropriateness of the flowchart among pediatricians and caregivers through questionnaire surveys which include satisfaction with the decision-making process, and postoperative course after discharge. Results: A total of 21 NIPPs with intubation underwent surgery and a total of 24 participants (14 pediatricians and 10 caregivers) completed the survey. The answers regarding the importance of the flowchart showed that eleven pediatricians had experience selecting of surgical airways, nine of whom had had experiences in which they had to make a difficult decision. The answers regarding the appropriateness of the flowchart revealed that all pediatricians and caregivers were satisfied with the decision-making process and postoperative course after discharge using the flowchart. Conclusions: The present study demonstrated the effectiveness of our flowchart for selecting an appropriate surgical airway in NIPP. By referring to our flowchart, pediatricians and caregivers are likely to be able to select an appropriate surgical airway, leading to increased satisfaction with the decision-making process and postoperative course. Level of Evidence: 4.

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Portal hypertension is a frequent syndrome characterized by an increased portal pressure gradient. The relevance of portal hypertension derives from the frequency and severity of its complications. Rectal varicose is relatively common in portal hypertension patients with meager bleeding rates; However, rectal variceal bleeding is a complicated and sometimes life-threatening condition. The management of rectal variceal bleeding has yet to be adequately established. Endoscopy, surgery, or transjugular intrahepatic portosystemic shunt placement (TIPS) can be performed in patients with gastrointestinal bleeding secondary to portal hypertension due to different etiologies. We present a successful case of direct abdominal percutaneous embolization of multiple and tortuous superior rectal varicose via the inferior mesenteric vein in a 7-year-old female patient with refractory rectal variceal bleeding, not susceptible to endoscopic, surgical, or TIPS management.

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BACKGROUND: Pleural empyema secondary to a ruptured amoebic liver abscess is a rare complication in the pediatric population. CASE REPORT: We report the case of a 13-year-old male with right flank abdominal pain, productive cough with foul-smelling sputum, fever, and respiratory distress. Physical examination revealed breathlessness, decreased vesicular murmur in the right hemithorax, abdominal distension, hepatomegaly, and lower limb edema. Laboratory tests revealed mild anemia, leukocytosis without eosinophilia, elevated alkaline phosphatase, hypoalbuminemia, and positive immunoglobulin G antibodies against Entamoeba histolytica in pleural fluid. He required a chest tube and treatment with metronidazole. After 2 months of follow-up, the abscesses disappeared, and the empyema decreased. CONCLUSIONS: Massive pleural empyema secondary to a ruptured liver abscess is a rare complication. The epidemiological link associated with the symptoms and serological tests can help in the diagnosis.

INTRODUCCIÓN: El empiema pleural secundario a ruptura de absceso amebiano hepático es una complicación poco frecuente en la población pediátrica. CASO CLÍNICO: Se reporta el caso de un paciente de sexo masculino de 13 años que presentó dolor abdominal en flanco derecho, tos productiva con esputo de mal olor, fiebre y dificultad respiratoria. Al examen físico se encontró amplexación y murmullo vesicular disminuido en hemitórax derecho, distensión abdominal, hepatomegalia y edema de miembros inferiores. Los resultados del laboratorio evidenciaron anemia leve, leucocitosis sin eosinofilia, elevación de fosfatasa alcalina, hipoalbuminemia y anticuerpos IgG contra Entamoeba histolytica positivo en líquido pleural. Requirió tubo de drenaje torácico y tratamiento con metronidazol. A los dos meses de seguimiento los abscesos desaparecieron y el empiema disminuyó. CONCLUSIONES: El empiema pleural masivo secundario a ruptura de absceso hepático es una complicación poco frecuente. El nexo epidemiológico asociado con la sintomatología y pruebas serológicas pueden ser de ayuda en el diagnóstico.

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HIV-associated hemophagocytic lymphohistiocytosis (HLH) is mainly due to infections caused by viruses, fungi, and, to a lesser extent, bacteria, often with fatal results. Case presentation: A 15-year-old pediatric patient from another institution was admitted to our hospital with a fever of unknown origin (FUO). Clinical analysis and laboratory studies diagnosed HIV infection. The approach to an FUO in a patient with AIDS is much more complex due to the search for common etiologies and opportunistic infections. In this case, disseminated histoplasmosis, pulmonary tuberculosis, pneumocystosis, and ehrlichiosis were diagnosed, prompting an urgent and comprehensive approach to prevent mortality. Due to the multiple infections, HLH was triggered. An early intervention with trimethoprim (TMP)-sulfamethoxazole (SMX), liposomal amphotericin B, doxycycline, and quadruple antiphimic therapy to suppress infections, in conjunction with the early administration of HLH treatment, favored the survival of this patient.

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Abstract Background: Pleural empyema secondary to a ruptured amoebic liver abscess is a rare complication in the pediatric population. Case report: We report the case of a 13-year-old male with right flank abdominal pain, productive cough with foul-smelling sputum, fever, and respiratory distress. Physical examination revealed breathlessness, decreased vesicular murmur in the right hemithorax, abdominal distension, hepatomegaly, and lower limb edema. Laboratory tests revealed mild anemia, leukocytosis without eosinophilia, elevated alkaline phosphatase, hypoalbuminemia, and positive immunoglobulin G antibodies against Entamoeba histolytica in pleural fluid. He required a chest tube and treatment with metronidazole. After 2 months of follow-up, the abscesses disappeared, and the empyema decreased. Conclusions: Massive pleural empyema secondary to a ruptured liver abscess is a rare complication. The epidemiological link associated with the symptoms and serological tests can help in the diagnosis.

Resumen Introducción: El empiema pleural secundario a ruptura de absceso amebiano hepático es una complicación poco frecuente en la población pediátrica. Caso clínico: Se reporta el caso de un paciente de sexo masculino de 13 años que presentó dolor abdominal en flanco derecho, tos productiva con esputo de mal olor, fiebre y dificultad respiratoria. Al examen físico se encontró amplexación y murmullo vesicular disminuido en hemitórax derecho, distensión abdominal, hepatomegalia y edema de miembros inferiores. Los resultados del laboratorio evidenciaron anemia leve, leucocitosis sin eosinofilia, elevación de fosfatasa alcalina, hipoalbuminemia y anticuerpos IgG contra Entamoeba histolytica positivo en líquido pleural. Requirió tubo de drenaje torácico y tratamiento con metronidazol. A los dos meses de seguimiento los abscesos desaparecieron y el empiema disminuyó. Conclusiones: El empiema pleural masivo secundario a ruptura de absceso hepático es una complicación poco frecuente. El nexo epidemiológico asociado con la sintomatología y pruebas serológicas pueden ser de ayuda en el diagnóstico.

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The developing central nervous system is vulnerable to several stimuli, especially psychotropic drugs. Sedation procedures during the developmental period are frequent in pediatric intensive care units (PICUs), in which the use of the sedative agent is still a challenge for the PICU team. Ketamine has been indicated for sedation in critically ill children with hemodynamic and ventilatory instabilities, but the possible neurobehavioral consequences related to this use are still uncertain. Here, we performed a bibliometric analysis with conventional metrics and a critical review of clinical findings to reveal a gap in the literature that deserves further investigation. We revealed that only 56 articles corresponded to the inclusion criteria of the study. The United States of America emerges as the main country within the scope of this review. In addition, professional clinical societies play a key role in the publications of scientific clinical findings through the specialist journals, which encourages the sharing of research work. The co-occurrence of keywords evidenced that the terms "sedation", "ketamine", and "pediatric" were the most frequent. Case series and review articles were the most prevalent study design. In the critical evaluation, the scarce studies highlight the need of use and post-use monitoring, which reinforces the importance of additional robust clinical studies to characterize the possible adverse effects resulting from ketamine anesthetic protocol in critically ill children.

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OBJECTIVE: Medical advances have resulted in increased survival rates of neurologically impaired children who may require mechanical ventilation and subsequent tracheostomy as a surgical airway. However, at present, there is no definite consensus regarding the timing and methods for placement of a surgical airway in a neurologically impaired intubated child who needs to be cared for over a long-term period. We therefore created a flowchart for the selection of a surgical airway for Neurologically Impaired Pediatric Patients (NIPPs). METHODS: The flowchart includes information on the patients' backgrounds, such as intubation period, prognosis related to reversibility, and history of aspiration pneumonia. To evaluate the importance of the flowchart, first we conducted a survey of pediatricians regarding selection of a surgical airway, and we also evaluated the appropriateness of the flowchart among pediatricians and caregivers through questionnaire surveys which include satisfaction with the decision-making process, and postoperative course after discharge. RESULTS: A total of 21 NIPPs with intubation underwent surgery and a total of 24 participants (14 pediatricians and 10 caregivers) completed the survey. The answers regarding the importance of the flowchart showed that eleven pediatricians had experience selecting of surgical airways, nine of whom had had experiences in which they had to make a difficult decision. The answers regarding the appropriateness of the flowchart revealed that all pediatricians and caregivers were satisfied with the decision-making process and postoperative course after discharge using the flowchart. CONCLUSIONS: The present study demonstrated the effectiveness of our flowchart for selecting an appropriate surgical airway in NIPP. By referring to our flowchart, pediatricians and caregivers are likely to be able to select an appropriate surgical airway, leading to increased satisfaction with the decision-making process and postoperative course.

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INTRODUCTION: Testicular adrenal rest tumors (TARTs) predominantly occur in patients with congenital adrenal hyperplasia (CAH) and may interfere with the function of the testicles. OBJECTIVE: This study aimed to identify the factors that contribute to the occurrence of TARTs in patients with CAH and influence their volume. STUDY DESIGN: This was a comparative cross-sectional study. Male patients aged 0-16 years with CAH were included. Weight, height, bone age determination, biochemical and androgenic profiles, and testicular ultrasound were performed. Patients were divided into those with and without TARTs and the between-group differences were assessed using the Mann-Whitey U test and Fisher's exact test. A ROC curve was created for serum ACTH levels to identify the cut-off point to diagnose TARTs. Variables that influenced the volume of the TARTs were identified using Spearman's correlation coefficient. RESULTS: TARTs were observed in seven (19.4%) of 36 male children with CAH. Of the patients with TARTs, 85.7% were pubertal. Serum concentrations of adrenocorticotropic hormone (ACTH) levels were significantly higher in patients with TARTs than in those without (309.0 pg/mL vs. 45.2 pg/mL; p = 0.006). ACTH levels >200 pg/mL were found to predict the presence of TARTs (sensitivity 85.7%; specificity 86.2%) (Figure). The factors found to correlate with TARTs volume were ACTH levels (coefficient 0.004; p = 0.009) and the three-year average of serum testosterone levels (coefficient 9.64; p = 0.003).] DISCUSSION: The main limitation of this study was the small sample size. However, an ACTH cut-off point to predict insufficient hormonal treatment and consequently the presence of TART had not been described. CONCLUSIONS: High ACTH (>200 pg/mL) was found to be predictive insufficient hormonal treatment in patients with CAH. The three-year average of serum testosterone levels and ACTH concentrations were correlated with the volume of TARTs.

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Chondroblastoma is a rare, benign neoplasm usually located in the epiphyses and apophyses of the long bones in the immature skeleton. Radiologically, these tumors have a classic appearance of a lytic lesion with chondroid matrix surrounded by a thin sclerotic rim. Here, we describe the case of a 5-year-old male who presented with a chondroblastoma unusually located exclusively in the metaphyseal region, which led to an elusive diagnosis. The presence of tumors outlying the traditional location or epidemiological spectrum, along with the potential for histopathological misdiagnosis, can pose a diagnostic and therapeutic challenge for the treating team.

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ABSTRACT Objective: To know the perception of health workers about the phenomenon of normalization of deviance in a pediatric hospital. Method: Exploratory, descriptive, and qualitative study conducted in a public pediatric hospital in northeastern Brazil in 2021. An in-depth interview was applied to 21 health workers, submitted to Thematic Categorical Content Analysis in the MAXQDA® Software. Results: 128 context units emerged from the content analysis. These data were presented in three analytical categories, which address conceptions about normalization of deviance, examples and contributing factors. The omission of the practice of hand hygiene and the correct use of personal protective equipment,and turning off alarms stand out as the main deviance perceived by health workers. As contributing factors, human factors and organizational factors prevailed. Conclusion: Workers perceive the normalization of deviance as negligence, recklessness, and violations of good practices, with consequences for patient safety.

RESUMEN Objetivo: Conocer la percepción de los trabajadores de la salud sobre el fenómeno de la normalización de la desviación en un hospital pediátrico. Método: Estudio exploratorio, descriptivo y cualitativo realizado en un hospital pediátrico público en el noreste de Brasil en 2021. Se aplicó una entrevista en profundidad a 21 trabajadores de la salud, sometidos al Análisis de Contenido Categórico Temático en el Software MAXQDA®. Resultados: 128 unidades de contexto surgieron del análisis de contenido. Estos datos se presentaron en tres categorías analíticas, que abarcan conceptos sobre la normalización de la desviación, ejemplos y factores contribuyentes. La omisión de la práctica de la higiene de manos y el uso correcto de los equipos de protección personal y el apagado de alarmas se destacan como las principales desviaciones percibidas por los trabajadores de la salud. Como factores contribuyentes prevalecieron los factores humanos y los factores organizacionales. Conclusión: Los trabajadores perciben la normalización de la desviación como negligencia, imprudencia y violación de las buenas prácticas, con consecuencias para la seguridad del paciente.

RESUMO Objetivo: Conhecer a percepção de trabalhadores de saúde sobre o fenômeno da normalização do desvio em um hospital pediátrico. Método: Estudo exploratório, descritivo e qualitativo realizado em hospital público pediátrico do nordeste brasileiro em 2021. Aplicou-se entrevista em profundidade a 21 trabalhadores de saúde, submetida à Análise de Conteúdo Categorial Temática no Software MAXQDA®. Resultados: Emergiram 128 unidades de contexto da análise de conteúdo. Esses dados foram apresentados em três categorias analíticas, as quais abordam concepções sobre normalização do desvio, exemplos e fatores contribuintes. Destacam-se a omissão da prática de higienização das mãos e do uso correto dos equipamentos de proteção individual, e o desligamento de alarmes como principais desvios percebidos pelos trabalhadores de saúde. Como fatores contribuintes, preponderaram os fatores humanos e os fatores organizacionais. Conclusão: Os trabalhadores percebem a normalização do desvio como negligência, imprudência e violações de boas práticas, com consequências para a segurança do paciente.

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Introducción: Las alteraciones en el estado redox celular se han descrito como factores causales en diversas enfermedades. La depleción del glutatión reducido se ha asociado fundamentalmente a enfermedades neurodegenerativas, pulmonares, hepáticas, cardiovasculares e inmunológicas. Objetivo: Determinar las concentraciones de glutatión reducido y el estado redox celular en pacientes pediátricos con inmunodeficiencias. Métodos: Se estudiaron 21 pacientes con inmunodeficiencias procedentes de la consulta de Inmunogenética, en edades comprendidas entre 1 y 8 años, de ambos sexos, y 8 niños en el mismo rango de edad de los pacientes, como grupo control, con estudios de inmunidad humoral y celular normales. Los pacientes con diagnóstico de inmunodeficiencia se dividieron para su estudio en 2 grupos según el componente afectado de la respuesta inmune: humoral y celular. Fueron determinadas las concentraciones intraeritrocitarias de glutatión reducido y oxidado, mediante un método de HPLC-UV. Para evaluar el estado redox celular se calculó la relación entre las formas reducidas y oxidadas del glutatión (GSH/GSSG). Resultados: Las concentraciones de glutatión reducido y el estado redox celular se encontraron disminuidos en ambos grupos de pacientes en relación con los niños sin inmunodeficiencia (p=0,031 y p=0,03; respectivamente). El glutatión oxidado no mostró diferencias entre los grupos. Conclusiones: En los pacientes con inmunodeficiencia se evidenció la afectación del estado redox celular como consecuencia de la disminución del glutatión reducido. Este primer acercamiento ofreció las potencialidades del empleo de estos biomarcadores en la evaluación integral de pacientes con inmunodeficiencia(AU)

Introduction: Alterations in the cellular redox state have been described as causal factors in various diseases. Reduced glutathione depletion has been fundamentally associated with neurodegenerative, pulmonary, liver, cardiovascular and immunological diseases. Objective: To determine the concentrations of reduced glutathione and the cellular redox status in pediatric patients with immunodeficiencies. Methods: We studied 21 patients with immunodeficiencies from the immunogenetic service, aged between 1 and 8 years and as a control group, 8 children in the same age range as the patients, with normal humoral and cellular immunity studies. Patients diagnosed with immunodeficiency were divided into two groups according to the affected component of the immune response: humoral and cellular. The intraerythrocyte concentrations of oxidized and reduced glutathione were determined by means of an HPLC-UV method. To evaluate the cellular redox state, the relationship between the reduced and oxidized forms of glutathione (GSH/GSSG) was calculated. Results: Reduced glutathione concentrations and cellular redox status were found to be decreased in both groups of patients in relation to children without immunodeficiency (p=0,031 and p=0,03; respectively). Oxidized glutathione showed no difference between the groups. Conclusions: In patients with immunodeficiency, the cellular redox state is affected as a consequence of the decrease in reduced glutathione. This first approach offers the potential for the use of these biomarkers in the comprehensive evaluation of patients with immunodeficiency(AU)

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Background: Osteocalcin plays a role in glucose metabolism in mice, but its relevance in human energetic metabolism is controversial. Its relationship with markers of energetic metabolism in the pediatric population has not been systematically addressed in infants and adolescents. Objective: This study aims to assess the mean differences between tOC, ucOC, and cOC among healthy children and children with type 1 or type 2 diabetes (T1D or T2D) and the correlation of these bone molecules with metabolic markers. Methods: A systematic review and metanalysis were performed following PRISMA criteria to identify relevant observational studies published in English and Spanish using PubMed, Scopus, EBSCO, and Web of Science databases. The risk of bias was assessed using New Castle-Ottawa scale. Effect size measures comprised standardized mean difference (SMD) and Pearson correlations. Heterogeneity and meta-regressions were performed. Results: The 20 studies included were of high quality and comprised 3,000 pediatric patients who underwent tOC, cOC, or ucOC measurements. Among healthy subjects, there was a positive correlation of ucOC with WC and weight, a positive correlation of tOC with FPG, HDL-c, WC, height, and weight, and a negative correlation between tOC and HbA1c. Among diabetic subjects, a negative correlation of ucOC with HbA1c and glycemia in both T1D and T2D was found and a negative correlation between tOC and HbA1c in T1D but not in T2D. The ucOC concentrations were lower in T2D, T1D, and patients with abnormal glucose status than among controls. The serum concentrations of tOC concentrations were lower among T1D than in controls. The patient's age, altitude, and HbA1c influenced the levels of serum tOC. Conclusion: Osteocalcin is involved in energy metabolism in pediatric subjects because it is consistently related to metabolic and anthropometric parameters. Systematic Review Registration: https://www.crd.york.ac.uk/prospero/, identifier: CRD42019138283.

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Resumen El tétanos continúa siendo un problema de salud pública, y que afecta a todas las edades. La mortalidad aumenta por bajas coberturas de vacunación y escasez de recursos para un tratamiento temprano. Es causado por la toxina de Clostridium tetani (tetanoespasmina) el cual ingresa al organismo a través de heridas contaminadas por cuerpos extraños. La clínica más frecuente del tétanos es del tipo generalizado y se caracteriza por la contracción tónica de músculos esqueléticos, espasmos musculares intensos, dolorosos, e hiperactividad autonómica. El diagnóstico es principalmente clínico. Se presenta el caso clínico de un tétanos generalizado en un niño con vacunación incompleta. Se discute la importancia de la vacunación y el diagnóstico y tratamiento precoz para mejorar el pronóstico de la enfermedad.

Abstract Tetanus continues to be a public health problem, which affects all age groups. Mortality increases when immunization programs have low coverage and there is a lack of resources for early treatment. This disease is caused by the toxin of Clostridium tetani (tetanospasmin) which enters the body via wounds contaminated by foreign bodies. The most common symptoms of tetanus are of the generalized type and are characterized by tonic contraction of skeletal muscles, intense, painful muscle spasms, and autonomic hyperactivity. The diagnosis is clinical and the previous vaccination history becomes important. We report the case of generalized tetanus in a child with incomplete immunizations. Highlight the importance of vaccination and early diagnosis and treatment.

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Resumen: En la pandemia actual por SARS-CoV-2, poca atención se ha puesto a la población pediátrica debido a su baja morbimortalidad. Debido al amplio espectro de presentación de esta enfermedad en los pacientes pediátricos, es necesario reconocer sus diferentes presentaciones clínicas y la importancia de la valoración preanestésica en procedimientos electivos y de urgencia a fin de evitar la exposición del personal de salud a pacientes contagiados y disminuir la morbilidad perioperatoria en el paciente pediátrico con COVID-19.

Abstract: In the current SARS-CoV-2 pandemic, little attention has been paid to the pediatric population due to its low morbidity and mortality. Due to the wide spectrum of presentation of this disease, in pediatric patients, it is necessary to recognize its different clinical presentations and the importance of pre-anesthetic evaluation in elective and emergency procedures in order to avoid the exposure of health personnel with infected patients and to reduce the perioperative morbidity in the pediatric patient with COVID-19.

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BACKGROUND: COVID-19 cases have been increasing since the epidemic started. One of the major concerns is how clinical symptomatology would behave after coinfection with another virus. CASE PRESENTATION: In this case report, a pediatric native patient from Estado de Mexico (EDOMEX), MEX had severe DENV-2 and acute SARS-CoV-2 at the same time. The clinical features were severe thrombocytopenia, secondary septic shock, cerebral edema, pericardial effusion, fluid overload that exhibited bipalpebral edema in all four extremities, hemophagocytic lymphohistiocytosis (HLH), coronary artery ectasia (CAE), multisystemic inflammatory syndrome in children (MIS-C), and probable COVID-19 pneumonia or acute respiratory distress syndrome (ARDS) that triggered patient intubation. The patient presented unusual symptomatology according to the literature. After 15 days of intubation and 15 more days under surveillance, he was released without respiratory sequelae and without treatment after major clinical improvement. CONCLUSION: The aim of this manuscript is to present clinical challenges that coinfection may cause in pediatric patients, even though COVID-19 in children does not tend to be as severe as in other sectors of the population.

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RESUMEN La pandemia causada por la COVID-19 se acompaña de desafíos bioéticos en vínculo con la atención a la salud de la población pediátrica, favorecido por las singularidades del grupo poblacional, la elevada transmisión viral, y el conocimiento aun limitado de las manifestaciones clínicas de la enfermedad en pacientes pediátricos. La presente investigación cumple el propósito de describir elementos teórico-prácticos que conforman la necesidad de una mirada bioética ante los retos multiplicados que se presentan durante la atención al paciente pediátrico en condiciones del nuevo escenario impuesto por la contingencia epidemiológica de la COVID-19. La revisión se realizó con la utilización de motores de búsqueda como el Google Académico, fueron consultados artículos en español e inglés en las bases de SciELO y Pubmed. Se exponen consideraciones bioéticas centradas en el paciente pediátrico y en el equipo de salud, que aportan una perspectiva ético-atencional más ampliada. El dominio y la aplicación práctica de los aspectos abordados permiten establecer cursos de acción que configuran la posibilidad de una atención sanitaria más próxima e integral, en beneficio de una mayor protección a la salud de niños y adolescentes.

ABSTRACT The pandemic caused by COVID-19 is accompanied by bioethical challenges in connection with health care for the pediatric population, favored by the singularities of the population group, high viral transmission, and the still limited knowledge of the clinical manifestations of the disease. disease in pediatric patients. The present research fulfills the purpose of describing theoretical-practical elements that make up the need for a bioethical look at the multiplied challenges that arise during pediatric patient care under the conditions of the new scenario imposed by the epidemiological contingency of COVID-19. The review was carried out using search engines such as Google Scholar, articles in Spanish and English were consulted in the databases of SciELO and Pubmed. Bioethical considerations focused on the pediatric patient and the health team are presented, which provide a broader ethical-attentional perspective. The mastery and practical application of the aspects addressed make it possible to establish courses of action that configure the possibility of closer and more comprehensive health care, for the benefit of greater protection of the health of children and adolescents.

RESUMO A pandemia causada pela COVID-19 ver acompanhada de desafios bioéticos na atenção à saúde da população pediátrica, favorecida pelas singularidades do grupo populacional, alta transmissão viral e o linda limitado conhecimento das manifestaros clínicas da doença. pacientes pediátricos. A presente investigação compra o propósito de descrever elementos teórico-práticos que compõem a necessidade de um olhar bioético para os múltiplos desafios que se colocam durante a assistência ao paciente pediátrico nas condições do novo cenário imposto pela contingência epidemiológica do COVID-19. A revisão foi realizada em buscadores como o Google Scholar, os artigos em espanhol e inglês foram consultados nas bases de dados SciELO e Pubmed. São apresentadas considerações bioéticas voltadas para o paciente pediátrico e a equipe de saúde, que fornecem uma perspectiva ético-atencional mais ampla. O domínio e a aplicação prática dos aspectos abordados permitem estabelecer linhas de ação que configuram a possibilidade de uma atenção à saúde mais próxima e integral, em benefício de uma maior proteção à saúde da criança e do adolescente.

RESUMO

We herein report the challenging evaluation and planning process involved in performing the first successful surgical resection of a renal tumor with extensive inferior vena cava tumor thrombosis reaching the right atrium in a pediatric patient within the Central American region. In November 2018, the Oncology Department of the National Children's Hospital in Costa Rica consulted our Center for Liver Transplantation and Hepatobiliary Surgery for the evaluation of a clinical case involving a 6-year-old female patient with progressive Budd-Chiari syndrome caused by a Wilms' tumor of the right kidney with tumor thrombosis of the inferior vena cava reaching the right atrium. A multistage surgical safety strategy combining liver transplant techniques and cardiac surgery was thereafter designed and implemented, achieving complete excision of the tumor thrombus from the inferior vena cava with right nephrectomy. Postoperatively, the patient exhibited complete clinical resolution of Budd-Chiari syndrome and has remained tumor free with excellent quality of life while pursuing her second grade of primary school education 22 months after the successful implementation of this multistage surgical safety strategy. The combination of liver transplantation techniques and cardiac surgery based on a multistage surgical safety strategy minimized the occurrence of unexpected intraoperative events and allowed for complete renal tumor resection and level IV thrombectomy for the first time in a pediatric patient of a public health system in a developing country within the Central American region.

RESUMO

RESUMEN Esta revisión se basa en la mejor evidencia actualmente disponible, y en ella se definen las directrices en relación con la evaluación y manejo nutricional en niños críticamente enfermos. Estas directrices incluyen, los criterios para la detección de la malnutrición, tanto por déficit o exceso, así como, se identifican las recomendaciones y consensos de expertos sobre la estimación energética y de macronutrientes, los cuales pueden ser determinantes en prevenir tanto la sobrealimentación como subalimentación. También se señalan las recomendaciones internacionales sobre el momento de inicio del soporte nutricional para que esta sea oportuna, efectiva y segura, eligiendo la vía de alimentación según condición clínica y tipo de patología en función de disminuir el riesgo de morbimortalidad de estos pacientes. A modo general, se sugiere intensificar la investigación científica, con el fin de disponer de mejor evidencia para diseñar protocolos clínicos internacionales y locales para el manejo nutricional del paciente pediátrico críticamente enfermo.

ABSTRACT This review is based on the best evidence currently available and defines the guidelines for the nutritional assessment and management of critically ill children. These guidelines include the criteria for detecting malnutrition, whether due to deficit or excess, as well as the recommendations and consensus of experts on the estimation of energy and macronutrients, which can be decisive in preventing both overfeeding and underfeeding. International recommendations on the time of initiation of nutritional support are also indicated so that it is timely, effective and safe. Choice of feeding route according to clinical condition and pathology type in order to reduce the risk of morbi-mortality of these patients are discussed. In general, an increase in scientific research is suggested, in order to have better evidence to design international and local clinical protocols for the nutritional management of critically ill pediatric patients.