353 results match your criteria: "Hospital General de Niños "Pedro de Elizalde[Affiliation]"

Background: Long-gap esophageal atresia (LGEA) can complicate the management of esophageal atresia (EA) with or without a tracheoesophageal fistula (TEF). This series describes a short interval, staged, thoracoscopic internal traction approach for LGEA with distal TEF to manage complex anastomotic tension or an anatomically impossible esophageal anastomosis.

Methods: A retrospective review (2018-2024) was performed across four tertiary centers to identify patients with LGEA and distal TEF, managed with a staged, thoracoscopic internal traction approach.

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Chlorpyrifos induces lung metastases and modulation of cancer stem cell markers in triple negative breast cancer model.

Toxicology

January 2025

Universidad de Buenos Aires-CONICET, Instituto de Química y Fisicoquímica Biológicas "Prof. Alejandro C. Paladini" (IQUIFIB), Buenos Aires, Argentina; Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica. Cátedra de Física, Laboratorio de Radioisótopos, Buenos Aires, Argentina. Electronic address:

Breast cancer is a major public health problem, and distant metastases are the main cause of morbidity and mortality. Chlorpyrifos is an organophosphate that promotes Epithelial-Mesenchymal Transition-like phenotype in breast cancer cell lines and modulates the Breast Cancer Stem Cells activating two key processes related to the metastatic cascade. Here, we investigated whether Chlorpyrifos may induce distant metastases in an in vivo triple negative tumor model.

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Introduction: In the pediatric setting, overprescribing of antibiotics contributes to the rise of multidrug-resistant organisms. Antimicrobial stewardship programs (ASPs) are recommended to optimize antibiotic use and combat resistance. However, the implementation of ASPs in low- and middle-income countries faces several challenges.

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Article Synopsis
  • Urinary tract infections (UTIs) in children are primarily caused by enterobacteria, but Streptococcus pneumoniae is a rare cause that can indicate underlying issues.
  • A case study focused on a 2-year-old girl with recurrent UTIs, renal malformations, and a detected UTI caused by Streptococcus pneumoniae demonstrated the importance of thorough imaging studies for such cases.
  • The findings highlight that UTIs from this atypical bacterium often correlate with serious renal-urological conditions, emphasizing the necessity for additional urinary tract evaluations in affected patients.
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Background: Covered stent correction for a sinus venosus atrial septal defect (SVASD) was first performed in 2009. This innovative approach was initially viewed as experimental and was reserved for highly selected patients with unusual anatomic variants. In 2016, increasing numbers of procedures began to be performed, and in several centers, it is now offered as a standard of care option alongside surgical repair.

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Article Synopsis
  • The standard treatment for primary nephrotic syndrome involves an 8-week course of prednisone, while some suggest that extending treatment to 12 weeks may reduce relapses.
  • A study compared the relapse rates of patients receiving the standard vs. extended treatment over 2 years, with 37 patients in each group.
  • Results showed no significant difference in the cumulative incidence of relapses between the two treatment regimens (75.6% for standard vs. 72.9% for extended), indicating that extending treatment doesn't lead to fewer relapses.
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[Monogenic obesity: pathophysiology, diagnosis and treatment].

Medicina (B Aires)

December 2024

Escuela de Medicina de la Pontificia Universidad Católica Argentina, Buenos Aires, Argentina.

Article Synopsis
  • Obesity is a complex disorder influenced by a mix of genetics and environmental factors, with several gene variants linked to food intake and leptin's effects in the brain.
  • Advances in next-generation sequencing have revealed a higher incidence of genetic factors associated with obesity than previously thought.
  • Early diagnosis of both syndromic and non-syndromic monogenic obesity is crucial to prevent the use of ineffective treatments like surgery or non-specific medications.
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Introduction: Hypophosphatasia is a rare inherited systemic metabolic disorder, with an estimated prevalence in the severe forms of the disease of 1/100.000-1/300.000, that affects the typical architecture of bone, leading to defective mineralization during growth and remodeling.

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Background: Shiga toxin-producing Escherichia coli-associated hemolytic uremic syndrome (STEC-HUS) is a severe condition mainly affecting children. It is one of the leading causes of acute kidney injury in the pediatric population. There is no established therapy for this disease.

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Article Synopsis
  • - Kabuki syndrome is a rare genetic condition marked by unique facial features, intellectual challenges, skeletal issues, and skin disorders, alongside a heightened risk for autoimmune diseases.
  • - Type 1 diabetes, which occurs due to the immune system attacking insulin-producing cells in the pancreas, is the most prevalent diabetes type among children and teens.
  • - The text discusses three pediatric patients diagnosed with Kabuki syndrome who also have type 1 diabetes, with two of them experiencing an additional autoimmune disease.
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Involvement of aquaporins in Shiga toxin-induced swelling and water transport dysfunction in human renal microvascular endothelial cells.

Biochim Biophys Acta Mol Cell Res

January 2025

Universidad de Buenos Aires, Facultad de Ciencias Médicas, Departamento de Ciencias Fisiológicas, Laboratorio de Fisiopatogenia, Buenos Aires C1121ABG, Argentina; CONICET - Universidad de Buenos Aires, Instituto de Fisiología y Biofísica Bernardo Houssay (IFIBIO Houssay), Buenos Aires C1121ABG, Argentina. Electronic address:

One of the hallmarks of Shiga toxin-producing Escherichia coli-associated hemolytic uremic syndrome (STEC-HUS) is kidney damage. Our previous research demonstrated that Shiga toxin type 2 (Stx2a) decreases cell viability and induces swelling of human glomerular endothelial cells (HGEC). However, Stx2a can disrupt net water transport across HGEC monolayers without affecting cell viability.

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Introduction: Although extensive research exists on the morbidity and mortality associated with tracheostomy in pediatrics, scarse work has been done to analyze the outcomes after hospital discharge of tracheostomized children. In our country there are no publications referring to the follow-up of this population. The general objective of this study was to describe and analyze the situation of tracheostomized children living at home in Argentina.

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Article Synopsis
  • A rare condition called Exocrine Pancreatic Insufficiency (EPI) can happen after a serious illness called STEC-HUS, which is caused by a bad type of E. coli bacteria.
  • A 4-year-old girl with STEC-HUS got really sick and later had stomach issues that led to her being diagnosed with EPI after tests showed low levels of a special enzyme.
  • She was treated with pancreatic enzyme replacement therapy (PERT) for 3 months, and her health improved, showing that doctors need to be aware of EPI when kids have STEC-HUS.
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Article Synopsis
  • Western equine encephalitis (WEE) is a virus that primarily affects animals but can accidentally infect humans, particularly children who face a higher risk of serious symptoms.
  • A 13-year-old boy from Buenos Aires became severely ill with meningoencephalitis, and despite initial tests showing no common microorganisms, he tested positive for WEE virus antibodies in both his blood and cerebrospinal fluid.
  • This case highlights that WEE is often overlooked as a potential cause of encephalitis, making it important to consider even in urban settings.
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Esophageal achalasia is an uncommon disease in pediatrics. With an insidious clinical presentation, diagnosis is delayed. Here we describe a case of esophageal achalasia in a 16-year-old girl, with the typical delay in consultation and diagnosis.

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Introduction. spontaneous breathing trial (SBT) in weaning from pediatric invasive mechanical ventilation (IMV) is an endorsed practice, its positivity is based on clinical parameters; however, its results could be better documented. Objective.

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Background: There is limited evidence from antimicrobial stewardship programmes in less-resourced settings. This study aimed to improve the quality of antibacterial prescriptions by mitigating overuse and promoting the use of narrow-spectrum agents in intensive care units (ICUs) in a middle-income country.

Methods: We established a quality improvement collaborative (QIC) model involving nine Argentine ICUs over 11 months with a 16-week baseline period (BP) and a 32-week implementation period (IP).

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The rapid identification of microorganisms that cause bacteremia and their possible resistance markers are extremely important for the timely initiation of effective antibiotic therapy. The FilmArray® panel BCID2 (an automated rapid multiplex PCR assay) detects microorganisms and resistance genes from positive blood cultures within one hour. The aim of this study was to compare the results obtained from the FilmArray® Panel BCID2 and conventional culture in pediatric patients, as well as the reporting times of both methods.

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Introduction. Overweight adolescents are confronted daily with stereotypes that condition their body image, self-esteem, and mood. Objectives.

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ATP-P2X7R pathway activation limits the Tfh cell compartment during pediatric RSV infection.

Front Immunol

July 2024

Instituto de Investigaciones Biomédicas en Retrovirus y SIDA, Facultad de Medicina, Universidad de Buenos Aires- Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina.

Background: Follicular helper T cells (Tfh) are pivotal in B cell responses. Activation of the purinergic receptor P2X7 on Tfh cells regulates their activity. We investigated the ATP-P2X7R axis in circulating Tfh (cTfh) cells during Respiratory Syncytial Virus (RSV) infection.

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