365 results match your criteria: "Hospital for Sick Children and The University of Toronto[Affiliation]"

Evidence-based mental health care for children and youth critically depends on properly conducted randomized controlled trials (RCTs) and prospective studies that investigate change in mental health outcomes over time. As evidence accumulates, it can be synthesized through systematic reviews and meta-analyses that combine the results of many studies into a single estimate of effect. Clinical practice guidelines incorporate this information along with input from stakeholders and content experts, who fill in evidence gaps to formulate recommendations for best practice.

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Background: Prenatal maternal depression (PMD) and selective serotonin reuptake inhibitor (SSRI) antidepressants are associated with increased developmental risk in infants. Reports suggest that PMD is associated with hyperconnectivity of the insula and the amygdala, while SSRI exposure is associated with hyperconnectivity of the auditory network in the infant brain. However, associations between functional brain organization and PMD and/or SSRI exposure are not well understood.

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Forgetting curves plot skill decay over time. After exposure to a simulation-based radiograph interpretation learning system, we determined the rate of learning decay and how this was impacted by testing (with and without feedback). Further, we examined the association of initial learning parameters on the forgetting curve.

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Objective: To develop treatment recommendations for children with juvenile idiopathic arthritis manifesting as non-systemic polyarthritis, sacroiliitis, or enthesitis.

Methods: The Patient/Population, Intervention, Comparison, and Outcomes (PICO) questions were developed and refined by members of the guideline development teams. A systematic review was conducted to compile evidence for the benefits and harms associated with treatments for these conditions.

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Objective: To develop treatment recommendations for children with juvenile idiopathic arthritis manifesting as non-systemic polyarthritis, sacroiliitis, or enthesitis.

Methods: The Patient/Population, Intervention, Comparison, and Outcomes (PICO) questions were developed and refined by members of the guideline development teams. A systematic review was conducted to compile evidence for the benefits and harms associated with treatments for these conditions.

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Hyperglycemia and Glucose Variability Are Associated with Worse Brain Function and Seizures in Neonatal Encephalopathy: A Prospective Cohort Study.

J Pediatr

June 2019

Division of Neurology, Department of Paediatrics, The Hospital for Sick Children and the University of Toronto, Toronto, Ontario, Canada; Program in Neurosciences and Mental Health, SickKids Research Institute, Toronto, Ontario, Canada.

Objectives: To investigate how glucose abnormalities correlate with brain function on amplitude-integrated electroencephalography (aEEG) in infants with neonatal encephalopathy.

Study Design: Neonates born at full term with encephalopathy were enrolled within 6 hours of birth in a prospective cohort study at a pediatric academic referral hospital. Continuous interstitial glucose monitors and aEEG were placed soon after birth and continued for 3 days.

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Anticoagulation therapy and the risk of perioperative brain injury in neonates with congenital heart disease.

J Thorac Cardiovasc Surg

June 2019

Division of Neurology, Department of Pediatrics, The Hospital for Sick Children and The University of Toronto, Toronto, Ontario, Canada; British Columbia Children's Hospital Research Institute, Vancouver, British Columbia, Canada. Electronic address:

Objective: There is considerable variability in anticoagulation use in neonates with transposition of the great arteries (TGA) and single ventricle physiology (SVP) for secondary stroke prevention and primary cardiovascular indications. Leveraging cross-center differences in anticoagulation use, we compared the risk of new postoperative brain injury in neonates with TGA and SVP treated with anticoagulation relative to untreated neonates.

Methods: Two-center observational cohort study of 118 term-born neonates with TGA (n = 83) and SVP (n = 35), undergoing cardiopulmonary bypass surgery and pre- and postoperative brain magnetic resonance imaging.

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Single-stranded DNA or RNA sequences rich in guanine (G) can adopt non-canonical structures known as G-quadruplexes (G4). Mitochondrial DNA (mtDNA) sequences that are predicted to form G4 are enriched on the heavy-strand and have been associated with formation of deletion breakpoints. Increasing evidence supports the ability of mtDNA to form G4 in cancer cells; however, the functional roles of G4 structures in regulating mitochondrial nucleic acid homeostasis in non-cancerous cells remain unclear.

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NF-κB pathway and the Goldilocks principle: Lessons from human disorders of immunity and inflammation.

J Allergy Clin Immunol

May 2019

Division of Immunology and Allergy, Department of Pediatrics, The Hospital for Sick Children and the University of Toronto, Toronto, Ontario, Canada; Canadian Centre for Primary Immunodeficiency and the Jeffrey Modell Research Laboratory for the Diagnosis of Primary Immunodeficiency, The Hospital for Sick Children. Electronic address:

Nuclear factor κ-light-chain-enhancer of activated B cells (NF-κB) signaling pathways play a key role in various cell processes related to host immunity. The last few years have seen an explosion of disorders associated with NF-κB components from core members of the canonical and noncanonical cascades to adaptor protein and ubiquitination-related enzymes. Disease phenotypes have extended beyond susceptibility to infections and include autoimmunity, lymphoproliferation, atopy, and inflammation.

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We present a new method to identify anatomical subnetworks of the human connectome that are optimally predictive of targeted clinical variables, developmental outcomes or disease states. Given a training set of structural or functional brain networks, derived from diffusion MRI (dMRI) or functional MRI (fMRI) scans respectively, our sparse linear regression model extracts a weighted subnetwork. By enforcing novel backbone network and connectivity based priors along with a non-negativity constraint, the discovered subnetworks are simultaneously anatomically plausible, well connected, positively weighted and reasonably sparse.

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Extracorporeal membrane oxygenation (ECMO) is a support modality used within the pediatric cardiac ICU population as a bridge to recovery or decision in the setting of acute myocardial decompensation, support for combined cardiopulmonary failure or in the setting of refractory cardiopulmonary arrest. Patients with univentricular physiology are at particular risk for decompensation requiring ECMO support. This review will focus upon current evidence and techniques for ECMO support of single ventricle patients who have undergone a stage II bidirectional Glenn procedure or the stage III Fontan procedure.

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Numerous studies have shown an association between children's socio-economic status (SES) and disparities in neurocognitive development, achievements, and function later in life. Research focus has recently shifted to imaging of the brain's response to the child's environment. This review summarizes the emerging studies on the influences of early-life SES on brain structure and development, and addresses the relation between brain development and enriched environments.

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An autoantibody identifies arrhythmogenic right ventricular cardiomyopathy and participates in its pathogenesis.

Eur Heart J

November 2018

The Labatt Family Heart Centre (Department of Pediatrics) and Translational Medicine, The Hospital for Sick Children & Research Institute and the University of Toronto, Room 1725D, 555 University Avenue, Toronto, Ontario, Canada.

Aims: Arrhythmogenic right ventricular cardiomyopathy (ARVC) is characterized by right ventricular myocardial replacement and life-threatening ventricular arrhythmias. Desmosomal gene mutations are sometimes identified, but clinical and genetic diagnosis remains challenging. Desmosomal skin disorders can be caused by desmosomal gene mutations or autoantibodies.

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What Did They Know Then? A Journey Among the Giants of the Past.

J Binocul Vis Ocul Motil

September 2019

a Department of Ophthalmology and Vision Sciences , Hospital for Sick Children and the University of Toronto, Toronto , Canada.

Dr. Richard Scobee has the honorary title "The Father of American Orthoptics." In addition to his numerous accomplishments in his academic career, he had hobbies that included collecting historical stamps.

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Can untreated PKU patients escape from intellectual disability? A systematic review.

Orphanet J Rare Dis

August 2018

University of Groningen, University Medical Center Groningen, Beatrix Children's Hospital, 9700, RB, Groningen, The Netherlands.

Background: Phenylketonuria (PKU) is often considered as the classical example of a genetic disorder in which severe symptoms can nowadays successfully be prevented by early diagnosis and treatment. In contrast, untreated or late-treated PKU is known to result in severe intellectual disability, seizures, and behavioral disturbances. Rarely, however, untreated or late-diagnosed PKU patients with high plasma phenylalanine concentrations have been reported to escape from intellectual disability.

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Signal transducer and activator of transcription 1 (STAT1) regulates multiple biological processes downstream of a variety of cytokine receptors in many cell types. Heterozygous gain-of-function (GOF) mutations in STAT1 have been associated with a diverse phenotype encompassing chronic mucocutaneous candidiasis (CMCC) and declining immunity. There is no clear correlation between STAT1 domain-specific mutations and phenotype, and it remains unclear why GOF mutations in STAT1 result in such a wide spectrum of clinical presentations.

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A fast segmentation-free fully automated approach to white matter injury detection in preterm infants.

Med Biol Eng Comput

January 2019

Department of Computing Science, University of Alberta, 402 Athabasca Hall, Edmonton, Alberta, T6G 2H1, Canada.

White matter injury (WMI) is the most prevalent brain injury in the preterm neonate leading to developmental deficits. However, detecting WMI in magnetic resonance (MR) images of preterm neonate brains using traditional WM segmentation-based methods is difficult mainly due to lack of reliable preterm neonate brain atlases to guide segmentation. Hence, we propose a segmentation-free, fast, unsupervised, atlas-free WMI detection method.

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Background: Family-Based Treatment (FBT) is the first line of care in paediatric treatment while adult programs focus on individualized models of care. Transition age youth (TAY) with Anorexia Nervosa (AN) are in a unique life stage and between systems of care. As such, they and their caregivers may benefit from specialized, developmentally tailored models of treatment.

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White matter injury in term neonates with congenital heart diseases: Topology & comparison with preterm newborns.

Neuroimage

January 2019

Neurosciences and Mental Health, The Hospital for Sick Children Research Institute, Toronto, ON, Canada; Department of Paediatrics, The Hospital for Sick Children and the University of Toronto, Toronto, ON, Canada. Electronic address:

Background: Neonates with congenital heart disease (CHD) are at high risk of punctate white matter injury (WMI) and impaired brain development. We hypothesized that WMI in CHD neonates occurs in a characteristic distribution that shares topology with preterm WMI and that lower birth gestational age (GA) is associated with larger WMI volume.

Objective: (1) To quantitatively assess the volume and location of WMI in CHD neonates across three centres.

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Should magnesium be routine for arrhythmia prevention?

J Thorac Cardiovasc Surg

August 2018

Departments of Paediatrics and Critical Care Medicine, Divisions of Cardiac Critical Care Medicine and Cardiology, The Hospital for Sick Children and The University of Toronto, Toronto, Ontario. Electronic address:

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Essential Modifiers of Double Outlet Right Ventricle: Revisit With Endocardial Surface Images and 3-Dimensional Print Models.

Circ Cardiovasc Imaging

March 2018

From the Labatt Family Heart Centre, the Hospital for Sick Children, Toronto, Canada (D.Y., A.D., M.S., L.G.-W., S.-J.Y.); Division of Cardiology, Department of Paediatrics, the University of Toronto, Canada (D.Y., A.D., M.S., L.G.-W., S.-J.Y.); and Division of Cardiovascular Surgery, Department of Surgery (H.I., G.v.A.) and Department of Diagnostic Imaging (M.S., L.G.-W., S.J.-Y.), the Hospital for Sick Children and the University of Toronto, Canada.

Hearts with double outlet right ventricle are a heterogeneous group of malformations in which a comprehensive diagnostic approach is required for tailored surgical management. This pictorial essay revisits essential modifiers of clinical and surgical importance in management of the patients with double outlet right ventricle using 3-dimensional volume-rendered endocardial surface images and 3-dimensional print models. Special emphasis is paid to the infundibular morphology, including the size and orientation of the outlet septum, relative to the margin of the ventricular septal defect, and the extent of the muscular infundibulum as an additional modifier of the distance between the ventricular septal defect margin and the arterial valve or valves.

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Introduction: Decades of research unequivocally demonstrates that no matter the society, socioeconomic resources are perhaps the most fundamental determinants of health throughout the life course, including during its very earliest stages. As a result, societies have implemented 'cash transfer' programmes, whichprovide income supplementation to reduce socioeconomic disadvantage among the poorest families with young children. Despite this being a common approach of societies around the world, research on effects of these programmes in low-income/middle-income countries, and those in high-income countries has been conducted as if they are entirely distinct phenomena.

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Adequate caloric intake plays a vital role in the course of illness and the recovery of critically ill patients. Nutritional status and nutrient delivery during critical illness have been linked to clinical outcomes such as mortality, incidence of infection, and length of stay. However, feeding practices with critically ill pediatric patients after cardiac surgery are variable.

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Background: The accurate identification of children with a concussion by emergency physicians is important to initiate appropriate anticipatory guidance and management.

Objectives: We compared the frequency of persistent concussion symptoms in children who were provided the diagnosis of concussion by an emergency physician versus those who met Berlin/Zurich international criteria for this diagnosis. We also determined the clinical variables independently associated with a physician-diagnosed concussion.

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Inducible indoleamine 2,3-dioxygenase 1 and programmed death ligand 1 expression as the potency marker for mesenchymal stromal cells.

Cytotherapy

May 2018

Department of Pediatrics & Child Health, University of Manitoba, Winnipeg, Canada; Department of Immunology, University of Manitoba, Winnipeg, Canada; Cellular Therapy Laboratory, CancerCare Manitoba, Winnipeg, Canada; Blood and Marrow Transplant/Cellular Therapy, Division of Haematology/Oncology, The Hospital for Sick Children and the University of Toronto, Toronto, Canada. Electronic address:

Aim: Establishment of a potency assay in the manufacturing of clinical-grade mesenchymal stromal cells (MSCs) has been a challenge due to issues of relevance to function, timeline and variability of responder cells. In this study, we attempted to develop a potency assay for MSCs.

Methods: Clinical-grade bone marrow-derived MSCs were manufactured.

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