Publications by authors named "James Dayre Mcnally"

Article Synopsis
  • * Administering vitamin D as a loading dose, along with continued maintenance, may provide benefits for these patients, although more extensive research is necessary to validate these findings.
  • * Vitamin D's safety and its potential positive effects on various organ systems suggest that supplementation could be a valuable and simple intervention in critical care settings.
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Objectives: Children with chronic critical illness (CCI) are hypothesized to be a high-risk patient population with persistent multiple organ dysfunction and functional morbidities resulting in recurrent or prolonged critical care; however, it is unclear how CCI should be defined. The aim of this scoping review was to evaluate the existing literature for case definitions of pediatric CCI and case definitions of prolonged PICU admission and to explore the methodologies used to derive these definitions.

Data Sources: Four electronic databases (Ovid Medline, Embase, CINAHL, and Web of Science) from inception to March 3, 2021.

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This study was conducted to investigate whether outcomes of medical emergency team (MET) activations differ by time of day of hospitalized pediatric patients. This is a retrospective cohort study conduct at a tertiary pediatric hospital. Data were extracted from the charts of 846 patients (with one or more MET activations) over a 5-year period.

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Background: Improvements in the delivery of intensive care have increased survival among even the most critically ill children, thereby leading to a growing number of children with chronic complex medical conditions in the pediatric intensive care unit (PICU). Some of these children are at a significant risk of recurrent and prolonged critical illness, with higher morbidity and mortality, making them a unique population described as having chronic critical illness (CCI). To date, pediatric CCI has been understudied and lacks an accepted consensus case definition.

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Background: Standard practice for conducting systematic reviews (SRs) is time consuming and involves the study team screening hundreds or thousands of citations. As the volume of medical literature grows, the citation set sizes and corresponding screening efforts increase. While larger team size and alternate screening methods have the potential to reduce workload and decrease SR completion times, it is unknown whether investigators adapt team size or methods in response to citation set sizes.

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Background: Accepted systematic review (SR) methodology requires citation screening by two reviewers to maximise retrieval of eligible studies. We hypothesized that records could be excluded by a single reviewer without loss of sensitivity in two conditions; the record was ineligible for multiple reasons, or the record was ineligible for one or more specific reasons that could be reliably assessed.

Methods: Twenty-four SRs performed at CHEO, a pediatric health care and research centre in Ottawa, Canada, were divided into derivation and validation sets.

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Background: The vast majority of children undergoing cardiac surgery have low vitamin D levels post-operative, which may contribute to greater illness severity and worse clinical outcomes. Prior to the initiation of a large phase III clinical trial focused on clinical outcomes, studies are required to evaluate the feasibility of the study protocol, including whether the proposed dosing regimen can safely prevent post-operative vitamin D deficiency in this high-risk population.

Methods: We conducted a two-arm, double-blind dose evaluation randomized controlled trial in children requiring cardiopulmonary bypass for congenital heart disease.

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Objective: To evaluate the effectiveness of two palivizumab programmes targeting high-risk infants, defined by prematurity, diagnosis of comorbidities and geography, and assess potential disparities by neighbourhood income.

Design: Controlled, interrupted time series.

Setting: Ontario, Canada.

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Pediatric in-patients with tracheostomy (PIT) are at high risk for clinical deterioration. Medical emergency teams (MET) have been developed to identify high-risk patients. This study compared MET activation rates between PITs and the general ward population.

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Objectives: To characterize the stated practices of qualified Canadian physicians toward tracheostomy for pediatric prolonged mechanical ventilation and whether subspecialty and comorbid conditions impact attitudes toward tracheostomy.

Design: Cross sectional web-based survey.

Subjects: Pediatric intensivists, neonatologists, respirologists, and otolaryngology-head and neck surgeons practicing at 16 tertiary academic Canadian pediatric hospitals.

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Background: Systematic reviews (SRs) are often cited as the highest level of evidence available as they involve the identification and synthesis of published studies on a topic. Unfortunately, it is increasingly challenging for small teams to complete SR procedures in a reasonable time period, given the exponential rise in the volume of primary literature. Crowdsourcing has been postulated as a potential solution.

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Background: Vitamin D deficiency (VDD) has been hypothesized not only to be common but also to represent a potentially modifiable risk factor for greater illness severity and clinical outcome during critical illness. The objective of this systematic review was to determine the frequency of VDD in pediatric critical illness and its association with clinical outcomes.

Methods: MEDLINE, Embase, and CENTRAL were searched through December 12, 2016, with no date or language restrictions.

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Objectives: To describe the use of deferred and prior informed consent models in the context of a low additional risk to standard of care, placebo-controlled randomized controlled trial of corticosteroids in pediatric septic shock.

Design: An observational substudy of consent processes in a randomized controlled trial of hydrocortisone versus placebo.

Setting: Seven tertiary level PICUs in Canada.

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Objectives: To describe the criteria that currently guide empiric antibiotic treatment in children admitted to Canadian PICUs.

Design: Cross-sectional survey.

Setting: Canadian PICUs.

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Objective: Rapid response systems using medical emergency teams reduce hospital wide cardiorespiratory arrest and mortality. While rapid response systems improve hospital-wide outcomes, children receiving medical emergency team review may still be at increased risk for morbidity and mortality. The study purpose was to compare the length of stay and mortality rate in children receiving a medical emergency team review with those of other hospitalized children.

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Background: Completing large systematic reviews and maintaining them up to date poses significant challenges. This is mainly due to the toll required of a small group of experts to screen and extract potentially eligible citations. Automated approaches have failed so far in providing an accessible and adaptable tool to the research community.

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Objective: To evaluate all published pediatric randomized controlled trials of patients with septic shock from any cause to examine the outcome measures used, the strengths and limitations of these measurements and whether the trial outcomes met feasibility criteria.

Data Sources: We used a previously published database of pediatric critical care randomized controlled trials (PICUtrials.net) derived from searches of MEDLINE, EMBASE, LILACS, and CENTRAL.

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Objective: In healthcare, checklists help to ensure patients receive evidence-based, safe care. Since 2007, we have used a bedside checklist in our PICU to facilitate daily discussion of care-related questions at each bedside. The primary objective of this study was to assess compliance with checklist use and to assess how often individual checklist elements affected patient management.

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Objective: This study describes one follow-up program in the Ontario Rapid-Response System project consisting of routine medical emergency team visits of patients discharged from the PICU consisting of two planned visits within 48 hours following discharge. Study purpose was to describe interventions provided and the patient characteristics associated with medical emergency team utilization.

Design: Retrospective cohort study.

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Context: Observational studies have suggested a relationship between vitamin D status and asthma-related respiratory outcomes. The benefit of vitamin D supplementation for pulmonary function, symptoms and exacerbations is not well established.

Objective: To systematically review paediatric clinical trials investigating the role of vitamin D on asthma-related respiratory outcomes.

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Objectives: This study focused on health care staff (HCS) responsible for activating the medical emergency team (MET) at a pediatric tertiary hospital using a well-established rapid response system. Our goals were to report the patient characteristics, MET interventions, and disposition by activating HCS.

Methods: This is a retrospective cohort study of pediatric patients who received MET activation at the Children's Hospital of Eastern Ontario in Ottawa, Canada.

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Vitamin D is a pleiotropic hormone important for the proper functioning of multiple organ systems. An emerging body of adult and pediatric critical care literature strongly suggests that vitamin D deficiency contributes to secondary organ pathophysiology, prolongs ICU stay, and worsens outcome in critically ill populations. Recent clinical studies suggest that a significant number of children with congenital heart disease (CHD) have post-operative vitamin D deficiency which appears to be associated with greater cardiovascular dysfunction.

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