Outcomes among patients with coronary artery bypass grafts presenting with acute coronary syndrome: impact of revascularization.

Background: Patients post-coronary artery bypass graft (CABG) can re-present with acute coronary syndrome (ACS); however, culprit lesion identification, as well as revascularization, is often challenging. Furthermore, the impact of revascularization in this patient group is relatively unknown.

Objectives: The purpose of our study was to evaluate the efficacy of percutaneous coronary intervention (PCI) in patients with previous CABG surgery presenting with ACS.

Delayed Postoperative Radiotherapy in Head & Neck Cancers-A Systematic Review and Meta-Analysis.

Objectives: To evaluate the impact of delayed postoperative radiotherapy (PORT) on overall survival (OS) in patients with head and neck cancers (HNC).

Data Sources: A systematic review and meta-analysis were conducted by searching MEDLINE, Embase, CENTRAL, Web of Science, and CINAHL databases.

Review Methods: Studies assessing the impact of delayed PORT in adult HNC patients were included.

Mentorship in Otolaryngology Head and Neck Surgery: A Scoping Review.

Importance: Mentorship is increasingly recognized as a critical part of training across the spectrum of trainees. While explored more in-depth in the literature of other medical specialties, mentorship remains a nascent topic in the Otolaryngology Head and Neck Surgery (OHNS) literature.

Objective: The objective of this study was to assess the current literature on mentorship in OHNS.

Prediction of good neurological outcome after return of circulation following paediatric cardiac arrest: A systematic review and meta-analysis.

Aim: To evaluate the ability of blood-biomarkers, clinical examination, electrophysiology, or neuroimaging, assessed within 14 days from return of circulation to predict good neurological outcome in children following out- or in-hospital cardiac arrest.

Methods: Medline, EMBASE and Cochrane Trials databases were searched (2010-2023). Sensitivity and false positive rates (FPR) for good neurological outcome (defined as either 'no, mild, moderate disability or minimal change from baseline') in paediatric survivors were calculated for each predictor.

A Five-Year Prospective, Randomized, Open-Label Study of Standard-Dose Versus Low-Dose Prolonged-Release Tacrolimus With or Without Angiotensin-Converting Enzyme Inhibitor or Angiotensin II Receptor Blocker Post Kidney Transplantation.

Introduction: Novel approaches to improve long-term outcomes in kidney transplant recipients are required. Here, we present the 5-year data from a multicenter, prospective, Phase 3b trial evaluating treatment outcomes with standard (STD) or low (LOW) dose prolonged-release tacrolimus (TAC) combined with ACEi/ARB or other antihypertensive therapy (OAHT) in Canadian kidney transplant recipients.

Methods: Adult de novo kidney transplant recipients were randomized 2 × 2 to STD or LOW dose TAC and ACEi/ARB or OAHT.

Predefined and data-driven CT radiomics predict recurrence-free and overall survival in patients with pulmonary metastases treated with stereotactic body radiotherapy.

Background: This retrospective study explores two radiomics methods combined with other clinical variables for predicting recurrence free survival (RFS) and overall survival (OS) in patients with pulmonary metastases treated with stereotactic body radiotherapy (SBRT).

Methods: 111 patients with 163 metastases treated with SBRT were included with a median follow-up time of 927 days. First-order radiomic features were extracted using two methods: 2D CT texture analysis (CTTA) using TexRAD software, and a data-driven technique: functional principal components analysis (FPCA) using segmented tumoral and peri-tumoural 3D regions.

The association between neighbourhood marginalization and SARS-CoV-2 outcomes in patients presenting to emergency departments.

Objective: Social and economic marginalizations have been associated with inferior health outcomes in Canada. Our objective was to describe the relationship between neighbourhood marginalization and COVID-19 outcomes among patients presenting to Canadian emergency departments (ED).

Methods: We conducted an observational study among consecutive COVID-19 patients recruited from 47 hospitals participating in the Canadian COVID-19 ED Rapid Response Network (CCEDRRN) between March 3, 2020, and July 24, 2022.

Morselized corticocancellous bone as primary graft for posterior lumbar fusion: a systematic review and meta-analysis.

Purpose: Synthetic cages are commonly used in posterior and transforaminal lumbar interbody fusion procedures. Using morselized corticocancellous bone from spinous processes and laminae has been suggested as an alternative, especially in low-resource settings where access to synthetic cages is limited. The aim of this study was to compare radiographic and functional outcomes of synthetic cages with those of morselized local autograft.

Proportional Assist Ventilation for Minimizing the Duration of Mechanical Ventilation (the PROMIZING study): update to the statistical analysis plan for a randomized controlled trial.

Background: We previously published the protocol and statistical analysis plan for a randomized controlled trial of Proportional Assist Ventilation for Minimizing the Duration of Mechanical Ventilation: the PROMIZING study in Trials ( https://doi.org/10.1186/s13063-023-07163-w ).

Transfabric Leaks After Percutaneous Left Atrial Appendage Occlusion Procedures with the WATCHMAN FLX Device.

Background: Cardiac computed tomography imaging with contrast is being used increasingly to image left atrial appendage occlusion (LAAO) devices. Contrast flow across a device, also known as a transfabric leak (TFL), may indicate a lack of complete LAAO-device endothelialization. The data on the rate, predictors, and clinical events associated with TFL are limited.

Incidence, Prediction, and Prevention of Fractures After Kidney Transplantation: A Systematic Review Protocol.

Background: Kidney transplant recipients are uniquely exposed to the disordered bone metabolism associated with chronic kidney disease beginning before transplantation followed by chronic corticosteroid use after transplantation. Previous efforts to synthesize the rapidly accruing evidence regarding estimation and management of fracture risk in kidney transplant recipients are outdated and incomplete.

Objective: To synthesize the evidence informing the overall incidence, patient-specific risk prediction, and methods of prevention of fractures in patient living with a kidney transplant.

Do Risk Factors for HCC Impact the Association of CT/MRI LIRADS Major Features With HCC? An Individual Participant Data Meta-Analysis.

Guidelines suggest the Liver Imaging Reporting and Data System (LI-RADS) may not be applicable for some populations at risk for hepatocellular carcinoma (HCC). However, data assessing the association of HCC risk factors with LI-RADS major features are lacking. To evaluate whether the association between HCC risk factors and each CT/MRI LI-RADS major feature differs among individuals at-risk for HCC.

Primary care follow-up improves outcomes in older adults following emergency general surgery admission.

Background: While preoperative optimization improves outcomes for older adults undergoing major elective surgery, no such optimization is possible in the emergent setting. Surgeons must identify postoperative interventions to improve outcomes among older emergency general surgery (EGS) patients. The objective of this cohort study was to examine the association between early follow-up with a primary care physician (PCP) and the risk of nursing home acceptance or death in the year following EGS admission among older adults.

Accelerated growth and local progression of radiorecurrent prostate cancer in an orthotopic bioluminescent mouse model.

Globally, prostate cancer is the second most common malignancy in males, with over 400 thousand men dying from the disease each year. A common treatment modality for localized prostate cancer is radiotherapy. However, up to half of high-risk patients can relapse with radiorecurrent prostate cancer, the aggressive clinical progression of which remains severely understudied.

Towards a histological diagnosis of childhood small vessel CNS vasculitis.

Background: Primary small vessel CNS vasculitis (sv-cPACNS) is a challenging inflammatory brain disease in children. Brain biopsy is mandatory to confirm the diagnosis. This study aims to develop and validate a histological scoring tool for diagnosing small vessel CNS vasculitis.

A Remote Management-Centric Postdischarge Pathway for Patients Admitted to GIM with Heart Failure.

Background: Few GIM-specific heart failure transition of care (TOC) programs exist. We thus piloted a TOC program for heart failure patients discharged from GIM that incorporates a remote patient management program, Medly.

Methods: This single-centre, prospective proof-of-concept study described sociodemographic and medical characteristics of included patients, and computed summary statistics to describe clinical and workload outcomes.

Prediction of chronic severe intestinal failure-associated liver disease by current criteria in adults: A descriptive cohort study.

Introduction: Intestinal failure-associated liver disease covers a spectrum of conditions from mild to end-stage disease. Currently, there are 9 diagnostic criteria divided to four categories: cholestasis, steatosis, fibrosis, and unclassified. Our aim was to evaluate the application of these criteria to patients with chronic severe liver disease in patients with intestinal failure.

Assessing the impact of the iPeer2Peer program for adolescents with juvenile idiopathic arthritis: a mixed-methods randomized controlled trial.

Background: Juvenile Idiopathic Arthritis (JIA) is a chronic pediatric illness, whereby youth experience physical, emotional and psychosocial challenges that result in reduced health related quality of life (HRQL). Peer mentoring has been shown to improve disease self-management in adults with chronic conditions, with mixed results in younger populations. Building on our pilot work - which supported the feasibility and initial effectiveness of the iPeer2Peer program - the objective of this study was to assess the clinical effectiveness of the program in youth with JIA through a waitlist randomized controlled trial.

Generation of a selective senolytic platform using a micelle-encapsulated Sudan Black B conjugated analog.

The emerging field of senolytics is centered on eliminating senescent cells to block their contribution to the progression of age-related diseases, including cancer, and to facilitate healthy aging. Enhancing the selectivity of senolytic treatments toward senescent cells stands to reduce the adverse effects associated with existing senolytic interventions. Taking advantage of lipofuscin accumulation in senescent cells, we describe here the development of a highly efficient senolytic platform consisting of a lipofuscin-binding domain scaffold, which can be conjugated with a senolytic drug via an ester bond.

Enhanced detection and Characterization of M-proteins in multiple myeloma patients using An Agilent AssayMAP Bravo liquid handling system coupled to an LC-QTOF.

Background: Mass spectrometry methods are emerging as tools to detect M-proteins in the serum of multiple myeloma patients with increased sensitivity and specificity compared to traditional electrophoretic methods.

Methods: A liquid handling system, the Agilent AssayMAP Bravo, with liquid chromatography high-resolution quadrupole-time-of-flight (LC-QTOF) mass spectrometry to analyze intact light chains was compared to immunofixation electrophoresis (IFE) for M-protein analysis. 210 patient serum samples were analyzed in a split sample comparison (LC-QTOF vs.

Shared Decision-Making in Total Hip and Knee Arthroplasty: Understanding Surgeon and Patient Perspectives Regarding When It Is Time for Surgery.

Background: Although total hip and total knee arthroplasty are highly successful operations, the decision of whether and when to undergo surgery is highly subjective and discretionary, and specific guidelines regarding readiness for surgery remain elusive. The nature of these decisions underscores the importance of shared decision-making, which is founded on the concept that patients substantially contribute to determining their own readiness for surgery. The OPTION survey was developed as a conversation aid to facilitate shared decision-making in the context of total joint arthroplasty.

Regulatory Role of Vacuolar Calcium Transport Proteins in Growth, Calcium Signaling, and Cellulase Production in .

Recent research has revealed the calcium signaling significance in the production of cellulases in . While vacuoles serve as the primary calcium storage within cells, the function of vacuolar calcium transporter proteins in this process remains unclear. In this study, we conducted a functional characterization of four vacuolar calcium transport proteins in .

Development of a National Colorectal Cancer Screening Research Agenda: An Initiative of the Canadian Screening for Colorectal Cancer Research Network (CanSCCRN).

The Canadian Screening for Colorectal Cancer Research Network (CanSCCRN) recently set out to develop a national CRC screening research agenda and identify priority research areas. The specific objectives were to (1) identify evidence gaps relevant to CRC screening and the barriers and facilitators to evidence generation and uptake by CRC screening programs, (2) establish high-priority collaborative research ideas to inform best CRC screening practices, and (3) identify one to two research topics for grant development and submission within 12 to 18 months. Three focus groups were conducted with network members and relevant parties ( = 15) to identify evidence gaps, barriers, and facilitators to evidence generation and uptake.

Canadian Consensus Recommendations for Predictive Biomarker Testing in Gastric and Gastroesophageal Junction Adenocarcinoma.

Gastric cancer is common globally and has a generally poor prognosis with a low 5-year survival rate. Targeted therapies and immunotherapies have improved the treatment landscape, providing more options for efficacious treatment. The use of these therapies requires predictive biomarker testing to identify patients who can benefit from their use.