Publications by authors named "WHYTE H"

Objectives: To build an early, prognostic model for adverse outcome in infants with hypoxic ischemic encephalopathy (HIE) receiving therapeutic hypothermia (TH) based on brain magnetic resonance images (MRI), electrophysiological tests and clinical assessments were performed during the first 5 days of life.

Methods: Retrospective study of 182 neonates with HIE and managed with TH. The predominant pattern of HIE brain injury on MRI performed following cooling was scored by neuroradiologists.

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Tuberculosis remains a significant global health pandemic. There is an urgent need for new anti-tubercular agents to combat the rising incidence of drug resistance and to offer effective and additive therapeutic options. High-throughput screening of a subset of the NatureBank marine fraction library ( = 2000) identified a sample derived from an Australian marine sponge belonging to the order Haplosclerida that displayed promising anti-mycobacterial activity.

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Objective: Evaluate implementation of an institutional protocol to reduce the time to removal of esophageal button battery (BB) and increase use of mitigation strategies.

Methods: We developed a protocol for esophageal BB management [Zakai's Protocol (ZP)]. All cases of esophageal BB impaction managed at a tertiary care center before and after implementation from 2011 to 2023 were reviewed.

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Objective: Our goal was to improve placement success rates for peripheral arterial line (PAL) placements by introducing an ultrasound-guided (USg) approach. Our aim was to maintain success rates over 70% within 18 months.

Study Design: Interventions included development of a training curriculum, and procedure standardization.

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Amplitude-integrated electroencephalography (aEEG) is a bedside tool for continuous monitoring of brain activity with the possibility of real-time interpretation. Amplitude-integrated electroencephalography is routinely used in Canadian tertiary NICUs; however, its use in Level 2 NICUs has been limited. A bedside aEEG program was introduced in a Level 2 NICU in order to help facilitate the timely transfer of neurologically compromised infants and keep mother-infant dyads together where reassurance of appropriate neurological status could be attained.

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Background: Our research consortium is preparing for a prospective multicenter trial evaluating the impact of teleneonatology on the health outcomes of at-risk neonates born in community hospitals. We completed a 6-month pilot study to determine the feasibility of the trial protocol.

Methods: Four neonatal intensive care units ("hubs") and four community hospitals ("spokes") participated in the pilot-forming four hub-spoke dyads.

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Can medical face masks be replaced by reusable community face masks with similar performance? The influence of the number of wash cycles, the wash temperature and the use of detergent was evaluated on the performance of one medical face masks (MFM) and ten community face masks (CFM). The performance of the new and washed masks was characterized from the bacterial filtration efficiency (BFE) and the differential pressure (DP). The tests on the new masks showed that the MFM had always better BFE than CFMs.

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Clinical trials evaluating facility-to-facility telemedicine may include sites that have limited research experience. For the trial to be successful, these sites must correctly perform research-related tasks. This study aimed to determine whether health care professionals at community hospitals could accurately identify simulated study eligible patients and submit data to a research coordinating center.

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As a result of the current COVID-19 pandemic, the use of facemasks has become commonplace. The performance of medical facemasks is assessed using Bacterial Filtration Efficiency (BFE) tests. However, as BFE tests, require specific expertise and equipment and are time-consuming, the performance of non-medical facemasks is assessed with non-biological Particle Filtration Efficiency (PFE) tests which are comparatively easier to implement.

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Objective: The aim of this study was to evaluate if the presence of a physician in the neonatal transport team (NTT) affects transport-related outcomes and procedural success.

Design: Retrospective cohort study with propensity score matching.

Setting: Canadian national study.

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Objective: We aimed to measure provider perspectives on the acceptability, appropriateness, and feasibility of teleneonatology in neonatal intensive care units (NICUs) and community hospitals.

Study Design: Providers from five academic tertiary NICUs and 27 community hospitals were surveyed using validated implementation measures to assess the acceptability, appropriateness, and feasibility of teleneonatology. For each of the 12 statements, scale values ranged from 1 to 5 (1 = strongly disagree; 5 = strongly agree), with higher scores indicating greater positive perceptions.

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Objective: Our aim was to determine whether right ventricular (RV) dysfunction at 24-hour postnatal age predicts adverse developmental outcome among patients with hypoxic ischaemic encephalopathy (HIE) undergoing therapeutic hypothermia (TH).

Design: Neonates≥35 weeks with HIE/TH were enrolled in a physiological study in the neonatal period (n=46) and either died or underwent neurodevelopmental follow-up at 18 months (n=43). The primary outcome was a composite of death, diagnosis of cerebral palsy or any component of the Bayley Scores of Infant Development III<70.

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Article Synopsis
  • This study explores how listening to music and white noise impacts brain connectivity in neonates using scalp electroencephalography (EEG) in a neonatal intensive care unit (NICU).
  • Nine neonates, who were already being monitored with continuous EEG, listened to lullaby-like music and white noise for one hour each, with two-hour breaks in between.
  • Results indicated significant changes in brain connectivity in specific frequency bands (theta, lower alpha, upper alpha) when comparing music to white noise and white noise to no sound, although no differences were found between music and no sound.
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Children born very preterm (VPT) are at high-risk for altered brain development and impaired neurodevelopmental outcomes but are not well-studied before school-age. We investigated 64 four-year-olds: 37 VPT children [<32 weeks gestational age [GA]; 22 males; mean GA: 28.8 weeks ± 1.

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Objective: Transport teams perform multiple procedural interventions during the stabilization of critically ill neonates. The setting of this study was a national cohort of interfacility neonatal transports from nontertiary centers.

Methods: A retrospective cohort study of neonatal transports having interventional procedures using the Canadian Neonatal Transport Network database during 2014 to 2016.

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Introduction: Transfer of infants for magnetic resonance imaging (MRI) from the neonatal intensive care unit (NICU) requires exposure to unfamiliar environments and involve multiple complex human and system interactions, which can compromise patient safety. In situ simulation (ISS) offers an opportunity to identify latent safety threats (LSTs) that may occur during this high-risk procedure. Our primary aim was to use ISS to identify modifiable LSTs during the MRI procedure: involving neonatal transport to/from NICU to the MRI and the MRI scan.

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Interfacility transport to tertiary care for high-risk neonates has become an integral part of equitable access to optimal perinatal healthcare. Excellence in clinical care requires expertise in transport medicine and the coordination of safe transport processes. However, concerns remain regarding environmental stressors involved in the transportation of sick high-risk neonates, including noise and vibration.

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Article Synopsis
  • The study investigates the link between perinatal sentinel events (PSE) and MRI/neurodevelopmental outcomes in newborns with hypoxic-ischemic encephalopathy (HIE) receiving therapeutic hypothermia (TH).
  • Out of 182 neonates analyzed, those with PSE showed a higher percentage of normal MRIs and better motor and language outcomes compared to those without PSE.
  • The findings indicate that neonates with PSE experienced less severe brain injury and improved developmental outcomes at 18-36 months after TH treatment.
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We report a case of a preterm infant with congenital syphilis who presented with non-immune hydrops fetalis. Hepatic dysfunction was present at birth and acutely worsened following antibiotic administration. Placental pathology demonstrated infiltration with numerous spirochetes.

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Objective: To compare the characteristics and outcomes of neonates with mild hypoxic-ischemic encephalopathy (HIE) who received hypothermia versus standard care.

Study Design: We conducted a retrospective cohort study of neonates ≥35 weeks' gestation and ≥1800 g admitted with a diagnosis of Sarnat stage 1 encephalopathy. We evaluated length of hospital stay, duration of ventilation, evidence of brain injury on MRI, and neonatal morbidities.

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Objective: To describe the sonographic characteristics of periventricular hemorrhagic infarction (PVHI) and their association with mortality and neurodevelopmental disability in very preterm infants born in 2008-2013.

Study Design: Retrospective multicenter observational cohort study. Diagonal PVHI size was measured and severity score assessed.

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Those born very preterm (VPT; <32 weeks gestational age) have an increased risk in developing a wide range of cognitive deficits. In early-to-late childhood, brain structure has been shown to be altered in VPT compared to full-term (FT) children; however, the results are inconsistent. The current study examined subcortical volumes, cortical thickness, and surface area in a large cohort of VPT and FT children aged 4-12 years.

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Asphyxiated neonates with hypoxic ischemic encephalopathy (HIE) are at risk of myocardial dysfunction; however, echocardiography studies are limited and little is known about the relationship between hemodynamics and brain injury. To analyze the association between severity of myocardial dysfunction and adverse outcome as defined by the composite of death and/or abnormal magnetic resonance imaging. Neonates with HIE undergoing therapeutic hypothermia were enrolled.

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