51,120 results match your criteria: "UNIVERSITY OF OTTAWA[Affiliation]"

Background: Management of the adult airway is one of the most stressful and time-critical procedures in emergency medicine. In the Cowichan District Hospital, a rural hospital in British Columbia, Emergency Department (ED) staff were uncomfortable with acquiring the equipment needed for adult advanced airway management and the mean length of time to acquire the equipment was 319 s. The aim of this quality improvement (QI) project was to decrease the time to obtain the equipment needed for adult advanced airway management by nurses and physicians in the Cowichan District Hospital ED to less than 90 s by May 2023.

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We report a nonlinear terahertz (THz) detection device based on a metallic bull's-eye plasmonic antenna. The antenna, fabricated with femtosecond laser direct writing and deposited on a nonlinear gallium phosphide (GaP) crystal, focuses incoming THz waveforms within the sub-wavelength bull's eye region to locally enhance the THz field. Additionally, the plasmonic structure minimizes diffraction effects allowing a relatively long interaction length between the transmitted THz field and the co-propagating near-infrared gating pulse used in an electro-optic sampling configuration.

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Background: We sought to define textbook outcome in liver surgery (TOLS) for intrahepatic cholangiocarcinoma (ICC) by considering the implications of perioperative outcomes on overall survival (OS).

Methods: Using a multi-institutional database, TOLS for ICC was defined by employing novel machine learning (ML) models to identify perioperative factors most strongly predictive of OS ≥ 12 months. Subsequently, clinicopathologic factors associated with achieving TOLS were investigated.

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Reply to R Kellermayer.

Am J Clin Nutr

January 2025

Department of Pediatrics, Faculty of Medicine, University of Ottawa, Ottawa, Canada; CHEO Research Institute, Ottawa, Canada. Electronic address:

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Reliability and reproducibility of systematic reviews informing the 2020-2025 Dietary Guidelines for Americans: a pilot study.

Am J Clin Nutr

January 2025

School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada; Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada.

Background: Although high-quality nutrition systematic reviews (SRs) are important for clinical decision making, there remains debate on their methodological quality and reporting transparency.

Objectives: The objective of this study was to assess the reliability and reproducibility of a sample of SRs produced by the Nutrition Evidence Systematic Review (NESR) team to inform the 2020-2025 Dietary Guidelines for Americans (DGAs).

Methods: We evaluated a sample of 8 SRs from the DGA dietary patterns subcommittee for methodological quality using the Assessment of Multiple Systematic Reviews 2 (AMSTAR 2) tool and for reporting transparency using the PRISMA 2020 and PRISMA literature search extension (PRISMA-S) checklists.

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Land use change threatens global biodiversity and compromises ecosystem functions, including pollination and food production. Reduced taxonomic α-diversity is often reported under land use change, yet the impacts could be different at larger spatial scales (i.e.

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Background: Astragalus injection has been utilized in traditional Chinese medicine to treat a variety of diseases. The purpose of this systematic review was to evaluate the effectiveness of Astragalus injection in the treatment of viral myocarditis.

Methods: English databases such as PubMed, Cochrane Library, and EMBASE, and Chinese databases of Sino Med, China National Knowledge Infrastructure (CNKI), the VIP Information Resource Integration Service Platform, and Wanfang Data Information Site, were searched from their inception until May 1, 2024.

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Purpose Of Review: This study aims to examine the current state of psychosocial oncology (PSO) research concerning Black Canadian communities, focusing on their experiences, psychological states, and non-biological aspects of their cancer journey.

Recent Findings: Although there has been increased attention to PSO in the past two decades, there remains a lack of studies specifically addressing the experiences of Black Canadians affected by cancer. This is especially concerning considering the disparities identified by PSO researchers among Black individuals in the United States and the acknowledged health inequities affecting Black individuals in Canada.

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Objective: We sought to develop a machine learning (ML) preoperative model to predict bile leak following hepatectomy for primary and secondary liver cancer.

Methods: An eXtreme Gradient Boosting (XGBoost) model was developed to predict post-hepatectomy bile leak using data from the ACS-NSQIP database. The model was externally validated using data from hepatocellular carcinoma (HCC) and intrahepatic cholangiocarcinoma (ICC) multi-institutional databases.

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Background: Care transitions are complex and can make patients vulnerable to adverse events. Poor communication among clinicians, patients, and their caregivers is a critical gap during these periods of transition. Technology solutions such as platform-based patient-clinician digital health interventions (DHIs) can provide support and education to patients.

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Background: Virtual follow-up (VFU) has the potential to enhance cancer survivorship care. However, a greater understanding is needed of how VFU can be optimized.

Objective: This study aims to examine how, for whom, and in what contexts VFU works for cancer survivorship care.

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Article Synopsis
  • Effective global action against antimicrobial resistance (AMR) requires a robust scientific policy interface to translate evidence into practice, an area currently lacking an authoritative entity.
  • The proposed Scientific Panel on Evidence for Action against AMR (SPEA) aims to fill this gap by enhancing global coordination, providing real-time evidence, and tracking progress towards AMR goals.
  • Drawing lessons from the Intergovernmental Panel on Climate Change (IPCC), this essay discusses the potential functions and governance models for SPEA to support equitable, evidence-informed policy-making while addressing inherent challenges.
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Article Synopsis
  • The study aimed to determine effective cutoff scores for the Psoriatic Arthritis Impact of Disease questionnaire (PsAID12) based on disease activity measures in patients with PsA.
  • Using data from the ReFlaP study, researchers analyzed scores to define disease states such as remission and varying impact levels, employing statistical methods to establish these cutoffs.
  • Results indicated that the PsAID12 score had high diagnostic performance against established benchmarks, but further validation and expert consensus are needed to confirm the proposed cutoffs for clinical use.
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Objectives: POCUS is a core emergency medicine skill and mainstay of early pregnancy assessment. The ultrasound competency assessment tool was developed as an entrustment-based assessment tool for use by content experts evaluating trainees performing multiple POCUS study types. The objective of this study was to evaluate the scoring and extrapolation inferences of the tool within Kane's validity framework when used to assess trainees performing an early pregnancy POCUS.

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Clinical Manifestations.

Alzheimers Dement

December 2024

Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada.

Background: Mild Behavioral Impairment (MBI) is a condition characterized by neuropsychiatric symptoms (NPS) in older adults without dementia, serving as a precursor to various forms of dementia. This study explores the association between NPS and functional connectivity (FC) within the default mode network (DMN), executive control network (ECN), and salience network (SN) across three high-risk cohorts: mild cognitive impairment (due to Alzheimer's) (MCI, n = 79), cerebrovascular disease (CVD, n = 144), and Parkinson's disease (PD, n = 132).

Method: A total of 367 participants were recruited from the Ontario Neurodegenerative Disease Research Initiative (ONDRI).

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Tinnitus prevalence and associations with leisure noise exposure among Canadians, aged 6 to 79 years.

Int J Audiol

January 2025

Environmental Health Science and Research Bureau, Health Canada, Ottawa, Canada.

Objective: To examine the association between individual, cumulative leisure noise exposure (CLNE), acceptable yearly exposure (AYE) and tinnitus among a nationally representative sample of Canadians.

Design: In-person household questionnaires were used to evaluate leisure noise exposure across age, sex, household income and tinnitus: ever experienced, previous year, frequent, bothersome. High (≥85 dBA, LEX), low (<85 dBA, LEX) CLNE and AYEs were defined according to occupational limits.

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Introduction/aims: Glucocorticoid (GC)-related adverse reactions and risks are commonly seen during the treatment of immune-mediated and inflammatory neuromuscular disorders. There is wide variation in the management of associated complications. The aim of this study is to develop international consensus guidance on the management of GC-related complications in neuromuscular disorders.

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Genomic Data and Privacy.

Clin Chem

January 2025

Wofford Cain Chair and Professor, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, United States.

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Pulmonary vascular disease is not a single condition; rather it can accompany a variety of pathologies that impact the pulmonary vasculature. Applying precision medicine strategies to better phenotype, diagnose, monitor, and treat pulmonary vascular disease is increasingly possible with the growing accessibility of powerful clinical and research tools. Nevertheless, challenges exist in implementing these tools to optimal effect.

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The magnetic and magneto-optical properties of a tetrazinyl radical-bridged Er metallocene, [(Cp*Er)(bpytz)][BPh] (; Cp* = pentamethylcyclopentadienyl, bpytz = 3,6-bis(3,5-dimethyl-pyrazolyl)-1,2,4,5-tetrazine), are reported. As confirmed by these studies strong Ln-rad coupling is achieved, with exhibiting slow magnetic relaxation under a 1000 Oe dc field. The optical and magneto-optical profile of is completed by both near-infrared (NIR) luminescence and magnetic circularly polarized luminescence (MCPL), representing the first example of NIR MCPL with Er.

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Magnetic resonance (MR) images are commonly used to diagnose prolapsed lumbar intervertebral disc (PLID). However, for a computer-aided diagnostic (CAD) system, distinguishing between pathological abnormalities of PLID in MR images is a challenging and intricate task. Here, we propose a comprehensive model for the automatic detection and cropping of regions of interest (ROI) from sagittal MR images using the YOLOv8 framework to solve this challenge.

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Health needs of older people and age-inclusive health care in humanitarian emergencies in low-income and middle-income countries: a systematic review.

Lancet Healthy Longev

December 2024

Global Public Health & Bioethics, Julius Centre for Health Sciences and Primary Care, University Medical Centre Utrecht, Utrecht University, Utrecht, Netherlands.

Health needs of older people in humanitarian settings are poorly documented, negatively affecting the appropriateness of health services they receive. This Review identified the major health needs of older people across humanitarian contexts, including non-communicable diseases and mental health conditions (eg, psychological distress and depression). Barriers to health care of older people included inaccessibility of health-care services; shortage of appropriate health care; insufficient availability of medications and medical equipment; poor geriatric expertise of health-care staff, health policy makers, and health authorities; and age discrimination by health-care personnel.

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Background: Recent advancements in omics and benchmark dose (BMD) modeling have facilitated identifying the dose required for a predetermined change in a response (e.g. gene or protein change) that can be used to establish acceptable dose levels for hazardous exposures.

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Importance: Evolving breast cancer treatments have led to improved outcomes but carry a substantial financial burden. The association of treatment costs with the cost-effectiveness of screening mammography is unknown.

Objective: To determine the cost-effectiveness of population-based breast cancer screening in the context of current treatment standards.

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