468 results match your criteria: "Evaluative Clinical Sciences[Affiliation]"

Cochlear implants can partially restore hearing function in deaf individuals, but long-term speech listening outcomes vary widely across cochlear implant users. Visual cross-modal plasticity, where auditory cortical neurons upregulate visual inputs to assist visual processing, is one factor proposed to worsen cochlear implant users' speech outcomes because it may limit auditory processing capability. However, evidence for this view is conflicting, and the relationship of cross-modal activity to speech perception may depend on other variables such as the type of visual activity and when it is assessed.

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Background: Alcohol sales increased at the onset of the coronavirus disease 2019 (Covid-19) pandemic, while alcohol-related emergency department (ED) visits decreased. It is unknown whether these patterns of alcohol use persisted or led to delayed effects on health.

Methods: We conducted a cross-sectional time series analysis of alcohol sales and alcohol-related adverse events in Ontario, Canada.

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Older adults with cancer tend to face more complex health needs than their younger counterparts. Patients > 65 years of age are recommended for comprehensive geriatric assessment (CGA) to capture and address age-related vulnerabilities. Access to geriatrics services is limited, and our baseline audit of geriatric referrals in 2019 from the cancer program revealed that only 30% of patients referred received a CGA.

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Background: Rhythm-based rehabilitation interventions are gaining attention and measuring their effects is critical. With more clinical care and research being conducted online, it is important to determine the feasibility of measuring rhythm abilities online. However, some tools used to measure rhythm abilities, in particular the beat alignment test (BAT), have not been validated for online delivery.

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Former studies have established that individuals with a cochlear implant (CI) for treating single-sided deafness experience improved speech processing after implantation. However, it is not clear how each ear contributes separately to improve speech perception over time at the behavioural and neural level. In this longitudinal EEG study with four different time points, we measured neural activity in response to various temporally and spectrally degraded spoken words presented monaurally to the CI and non-CI ears (5 left and 5 right ears) in 10 single-sided CI users and 10 age- and sex-matched individuals with normal hearing.

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Concurrent validity and discriminative ability of force plate measures of balance during the sub-acute stage of stroke recovery.

Gait Posture

March 2025

KITE Research Institute, Toronto Rehabilitation Institute-University Health Network, Toronto, ON, Canada; Evaluative Clinical Sciences, Hurvitz Brain Sciences Program, Sunnybrook Research Institute, Toronto, ON, Canada; Department of Physical Therapy, University of Toronto, Toronto, ON, Canada. Electronic address:

Background: Many objective measures of balance control, including force plate measures of standing balance, lack sufficient validation for use in the stroke population.

Research Questions: Do force plate measures of quiet standing balance during the sub-acute stage of stroke recovery have concurrent validity (i.e.

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Vitamin B12 concentrations vary greatly in milk donated to a large provincial milk bank, and are influenced by supplementation and parity.

Clin Nutr

January 2025

Department of Nutritional Sciences, University of Toronto, Toronto ON, M5S 1A8, Canada; Translational Medicine, The Hospital for Sick Children, Toronto ON, M5G 0A4, Canada; Rogers Hixon Ontario Human Milk Bank, Sinai Health, Toronto ON, M5G 1X5, Canada; Department of Pediatrics, Sinai Health, Toronto ON, M5G 1X5, Canada. Electronic address:

Background & Aims: Feeding parent's milk with supplemental donor milk (DM) is the optimal way to feed very low birth weight (VLBW) infants instead of formula; however, suboptimal neurodevelopment persists. This is believed due, in part, to suboptimal nutrition. Given vitamin B12's role in neurodevelopment and increased adoption of plant-based diets among females of child-bearing age, we aimed to determine the adequacy of vitamin B12 in DM (n = 380 donors) and associated donor characteristics.

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Article Synopsis
  • The study aimed to assess whether the PROPEL program could boost physical activity participation for stroke survivors up to six months after rehab compared to standard group cardiorespiratory exercise (GCE).
  • A total of 172 stroke participants were randomly assigned to either the PROPEL or GCE programs, with the main focus on adherence to physical activity guidelines at the six-month mark.
  • Although PROPEL participants showed higher exercise self-efficacy compared to GCE participants, this did not significantly increase the likelihood of meeting physical activity guidelines.
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Objective: To examine perceived OR ergonomics facilitators and barriers, with a focus on the interdisciplinary team.

Summary Background Data: Poor ergonomics causes musculoskeletal injuries affecting all operating room (OR) staff with repercussions on patient care, outcomes, and sustainability. Lack of ergonomic awareness and education are risk factors.

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Analysis of Factors Associated With Pathological Complete Response in Patients With HER2-Positive Breast Cancer Receiving Neoadjuvant Chemotherapy.

Clin Breast Cancer

December 2024

Division of Medical Oncology and Hematology, Sunnybrook Odette Cancer Centre, Toronto, ON, Canada; Department of Medicine, University of Toronto, Toronto, ON, Canada. Electronic address:

Purpose: This study aimed to examine the impact of the level of HER2 overexpression on pathologic and clinical outcomes in HER2-positive breast cancer (BC) patients treated with neoadjuvant therapy (NAT).

Methods: Women with Stage II or III HER2-positive BC who received anthracycline-taxane-trastuzumab NAT regimens followed by curative-intent surgery were included. Patients were classified according to tumor HER2 expression into HER2-high (immunohistochemistry (IHC) 3+ or fluorescence in situ hybridization (FISH) HER2/CEP17 ratio ≥5 or HER2 copy number ≥10) and HER2-intermediate (IHC 2+ with HER2/CEP17 ratio ≥2 to <5 or copy number ≥4 to <10).

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Post Hoc Bias in Treatment Decisions.

JAMA Netw Open

September 2024

Department of Psychology, Princeton University, Princeton, New Jersey.

Importance: A goal of health care is to reduce symptoms and improve health status, whereas continuing dubious treatments can contribute to complacency, discourage the search for alternatives, and lead to shortfalls in care.

Objective: To test a potential bias in intuitive reasoning following a marginal improvement in symptoms after a dubious treatment (post hoc bias).

Design, Setting, And Participants: Surveys eliciting treatment recommendations for hypothetical patients were sent to community members throughout North America recruited via an online survey platform in the early winter months of 2023 and 2024 and presented to health care professionals (pharmacists who were approached in person using a secret shopper technique) in the summer months of 2023.

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Introduction: Post-acute COVID syndrome (PACS) is a growing concern, given its impact on mental health and quality of life. However, its effects on cerebral white matter remain poorly understood, particularly in non-hospitalized cohorts. The goals of this cross-sectional, observational study were to examine (1) whether PACS was associated with distinct alterations in white matter microstructure, compared to symptom-matched non-COVID viral infection; and (2) whether microstructural alterations correlated with indices of post-COVID emotional health.

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Article Synopsis
  • Tranexamic acid is known to reduce bleeding and blood transfusions in various surgeries, but its effectiveness for patients undergoing liver resection due to cancer is uncertain.
  • A multicenter randomized clinical trial involving 1384 patients was conducted to see if tranexamic acid decreases the need for red blood cell transfusions within 7 days after liver surgery.
  • The results showed no significant difference in transfusion rates or blood loss between the tranexamic acid group and the placebo group, and those who received tranexamic acid experienced more complications.
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Seeing the Truth About Double Blinding.

J Gen Intern Med

December 2024

Department of Medicine, University of Toronto, Toronto, ON, Canada.

Randomized clinical trials provide reassurances that confounding factors are balanced at baseline whereas blinding is essential to assure the balance of extraneous factors thereafter. This article provides a three-part taxonomy of pitfalls that can arise because of inadequate blinding in clinical trials. We introduce a cautionary framework for readers interpreting a blinded randomized trial for evidence-based medicine.

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Background: The literature to date is unable to clearly characterize the appropriateness of virtual care for falls prevention services from the patient perspective. In response to COVID-19, the Falls Prevention Program (FPP) at Sunnybrook Health Sciences Centre was modified to include virtual components. We set out to uncover the experiences of this unique older-adult patient population to inform FPP quality improvement and appropriate incorporation of technology post-pandemic.

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Background: Hip replacement surgery can be painful; postoperative analgesia is crucial for comfort and to facilitate recovery. Regional anaesthesia can reduce pain and postoperative opioid requirements. The role of ultrasound-guided suprainguinal fascia iliaca block for analgesia after elective total hip arthroplasty is not well defined.

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Persistent fatigue in post-acute COVID syndrome is associated with altered T1 MRI texture in subcortical structures: a preliminary investigation.

Behav Brain Res

July 2024

Brain Health and Wellness Research Program, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada; Keenan Research Centre for Biomedical Science of St. Michael's Hospital, Unity Health Toronto, Canada; Faculty of Medicine (Neurosurgery), University of Toronto, Canada.

Post-acute COVID syndrome (PACS) is a global health concern and is often associated with debilitating symptoms. Post-COVID fatigue is a particularly frequent and troubling issue, and its underlying mechanisms remain incompletely understood. One potential contributor is micropathological injury of subcortical and brainstem structures, as has been identified in other patient populations.

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There are conflicting findings about the relationships between depression, anxiety, and cognitive dysfunction in people with multiple sclerosis (MS), and a paucity of research has examined the cumulative influence on cognition of depression plus anxiety. This study aimed to determine whether elevated symptoms of depression and anxiety alone or in combination are associated with worse cognition in people with MS. In this cross-sectional analysis, people with MS consecutively seen at a tertiary neuropsychiatry clinic completed the Hospital Anxiety and Depression Scale for symptoms of depression (HADS-D) and anxiety (HADS-A), and the Minimal Assessment of Cognitive Function in MS for cognitive indices.

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Background: Periprosthetic joint infection (PJI) remains a dreaded and unpredictable complication after total hip arthroplasty (THA). In addition to causing substantial morbidity, PJI may contribute to long-term mortality risk. Our objective was to determine the long-term mortality risk associated with PJI following THA.

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Systemic mastocytosis (SM) is a rare haematological neoplasm associated with the gain of function mutation KIT D816V in 90% of adult patients. Classically, cytogenetic aberrations are not common except in cases of SM associated with another haematological neoplasm. We highlight here an unusual clinical presentation of SM and demonstrate the utility of advanced cytogenetic analysis (optical genome mapping, OGM) in detecting a novel cytogenetic abnormality resulting in an unusual mechanism of DNMT3A and TET2 loss of function.

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