Publications by authors named "McArthur E"

Objective: We compared processes of antepartum, intrapartum and postpartum care and obstetrical outcomes between physicians and non-physicians.

Design: This is a population-based retrospective matched cohort study.

Setting: The study was conducted in Ontario, Canada.

View Article and Find Full Text PDF
Article Synopsis
  • - The study aimed to assess the death risk in older adults taking low-dose methotrexate when also prescribed TMP-SMX compared to a cephalosporin.
  • - Researchers matched 1,602 adults on each antibiotic to analyze the 30-day outcomes, finding similar death rates but increased risks of hospitalization and infection with TMP-SMX.
  • - The conclusion indicated no higher death risk from TMP-SMX, but it was linked to increased hospitalization rates, suggesting that the benefits of this co-prescription need careful consideration.
View Article and Find Full Text PDF

Purpose: The purpose of this review is to investigate the current landscape of evidence-based mHealth resources designed to support pregnant patients with fetal anomalies, with a focus on enhancing maternal wellbeing, disseminating relevant information, and facilitating communication with nurses, physicians, and other health care professionals.

Study Design: Using the JBI (formerly known as the Joanna Briggs Institute) scoping review protocol and the PRISMA-ScR framework, we conducted a comprehensive search across databases including CINAHL, Medline, Web of Science, and Google Scholar.

Methods: A keyword search was conducted, resulting in 227 unique records.

View Article and Find Full Text PDF

Chimeric antigen receptor t-cell (CAR-T) therapy is a newly evolving therapy with well-known acute neurotoxic effects. While the long-term neurotoxic effects of this therapy are under-researched, they exist in subsets of the post-treatment population. Nurses can focus on assessments before and after CAR-T therapy to determine the degree to which these neurotoxic effects progress.

View Article and Find Full Text PDF

Antiviral use has been linked to encephalopathy and elevated serum creatinine concentrations in individuals with chronic kidney disease (CKD) in case reports. Using linked healthcare data in Ontario, we conducted a population-based cohort study on adults aged ≥66 years not receiving dialysis and newly prescribed oral acyclovir, valacyclovir, or famciclovir in the outpatient setting (2008-2022) at higher versus lower doses. The primary composite outcome, a hospital visit with encephalopathy or acute kidney injury (AKI) within 14 days of initiating antiviral treatment, was examined in a primary cohort.

View Article and Find Full Text PDF

Background: Physicians in certain specialities are routinely exposed to procedural ionizing radiation. Their risk of cancer is unknown, including by cancer sub-types.

Aims: To assess cancer risk among exposed physicians.

View Article and Find Full Text PDF
Article Synopsis
  • * A new machine learning method enables the quantification of 3D chromatin contacts from genome sequences, revealing notable differences in contact and sequence divergence, particularly in specific genomic windows.
  • * The research shows that in regions with high 3D divergence, certain genetic variants can lead to significant changes in chromatin contact without corresponding changes in the DNA sequence, highlighting the complexity of genetic variation impacts.
View Article and Find Full Text PDF

The 3D structure of the genome is an important mediator of gene expression. As phenotypic divergence is largely driven by gene regulatory variation, comparing genome 3D contacts across species can further understanding of the molecular basis of species differences. However, while experimental data on genome 3D contacts in humans are increasingly abundant, only a handful of 3D genome contact maps exist for other species.

View Article and Find Full Text PDF

Background: A substantial proportion of living kidney donors are women of childbearing age. Some prior studies report a higher risk of gestational hypertension and pre-eclampsia in living kidney donors compared with nondonors. Further research is needed to better quantify the risk of adverse maternal, fetal/infant, and neonatal outcomes attributable to living kidney donation.

View Article and Find Full Text PDF

Objective: To evaluate associations between neonatal risk factors and pulmonary vein stenosis (PVS) among infants born preterm with severe bronchopulmonary dysplasia (sBPD).

Study Design: We performed a case-control study of infants born from 2010 to 2022 at <32 weeks' gestation with sBPD among 46 neonatal intensive care units in the Children's Hospitals Neonatal Consortium. Cases with PVS were matched to controls using epoch of diagnosis (2010-2016; 2017-2022) and hospital.

View Article and Find Full Text PDF

Key Points: The rates of long-term mortality, reinfection, cardiovascular outcomes, and hospitalization were high among coronavirus disease 2019 (COVID-19) survivors on maintenance dialysis. Several risk factors, including intensive care unit admission related to COVID-19 and reinfection, were found to have a prolonged effect on survival. This study shows that the burden of COVID-19 remains high after the period of acute infection in the population receiving maintenance dialysis.

View Article and Find Full Text PDF

Importance: The pregnancy safety and teratogenicity of overactive bladder (OAB) anticholinergic medications in humans are unknown.

Objective: The aim of this study was to determine if the use of OAB anticholinergics during pregnancy was associated with adverse pregnancy outcomes or congenital malformation.

Study Design: Using routinely collected health care data from Ontario, Canada, we conducted a retrospective cohort study and identified women aged 18-45 years who gave birth between 2004 and 2022 and were eligible for provincial drug benefits.

View Article and Find Full Text PDF
Article Synopsis
  • A study examined how COVID-19 affected hospitalization rates for older adults in assisted living (AL) compared to nursing homes (NH) during different pandemic waves in Alberta, Canada.
  • Results showed that hospitalization rates decreased in both AL and NH during waves 1 and 4, but AL did not experience a decline during wave 2, unlike NH.
  • The findings indicated that while NH residents faced more delayed hospital discharges, AL residents had a significant increase in hospitalizations that resulted in death, particularly during wave 2.
View Article and Find Full Text PDF

Importance: Trimethoprim-sulfamethoxazole (TMP-SMX) may increase digoxin concentration, a medication with a narrow therapeutic index. Small changes in digoxin concentration could predispose individuals to the risk of toxicity.

Objective: To characterize the risk of digoxin toxicity in older adults taking digoxin following co-prescription of TMP-SMX compared with co-prescription of amoxicillin.

View Article and Find Full Text PDF

Conventional tumor markers may serve as adjuncts in non-small cell lung cancer (NSCLC) management. This study analyzed whether three tumor markers (CEA, CA19-9, and CA-125) held associations with radiographic and clinical outcomes in NSCLC. It constituted a single-center study of NSCLC patients treated with systemic therapy at the London Regional Cancer Program.

View Article and Find Full Text PDF

Objectives: To determine COVID-19 vaccine uptake among physicians in Ontario, Canada from 14 December 2020 to 13 February 2022.

Design: Population-based retrospective cohort study.

Setting: All registered physicians in Ontario, Canada using data from linked provincial administrative healthcare databases.

View Article and Find Full Text PDF

Background: It is unclear whether the use of higher dialysate bicarbonate concentrations is associated with clinically relevant changes in the pre-dialysis serum bicarbonate concentration.

Objective: The objective is to examine the association between the dialysate bicarbonate prescription and the pre-dialysis serum bicarbonate concentration.

Design: This is a retrospective cohort study.

View Article and Find Full Text PDF
Article Synopsis
  • Obsessive-compulsive disorder (OCD) affects about 1% of people and has a strong genetic component, but previous studies have not fully explained its genetic causes or biological mechanisms.
  • A large genome-wide association study (GWAS) analyzed data from over 53,000 OCD cases and over 2 million control participants, identifying 30 significant genetic markers related to OCD and suggesting a 6.7% heritability from SNPs.
  • The research also found 249 candidate risk genes linked to OCD, particularly in specific brain regions, and showed genetic correlations with various psychiatric disorders, laying the groundwork for further studies and potential treatments.
View Article and Find Full Text PDF

Background: In some jurisdictions, individuals become eligible or recommended for referral for different types of kidney care using criteria based on their estimated glomerular filtration rate (eGFR). Historically, GFR was estimated with an equation developed in 2009, which included a Black race term. An updated, race-free equation was developed in 2021.

View Article and Find Full Text PDF

Introduction: Outcomes for patients with multiple myeloma has significantly improved through the years. This is mainly related to the use of novel agents.

Methods: This is a retrospective study that reviewed presentation and outcome of 139 patients with multiple myeloma at the Windsor Essex Regional Cancer Centre from Jan.

View Article and Find Full Text PDF
Article Synopsis
  • The COVID-19 pandemic had significant negative effects on the daily lives of children and youth, leading to poorer relationships with family and friends, and increased mental health issues such as worsened mood, anxiety, and irritability.
  • A national online survey conducted in Canada from April to May 2022 analyzed self-reported mental health symptoms among children (11-14 years) and youth (15-18 years), focusing on how social factors like relationship quality affected their mental well-being.
  • Results showed that over a third of participants reported worsened mood, anxiety, or irritability during the pandemic compared to before, with poor familial relationships being a significant contributing factor to these symptoms.
View Article and Find Full Text PDF

Background And Purpose: Radiation therapy is used frequently for patients with prostate cancer. Dose escalation to intraprostatic lesions (IPLs) has been shown to improve oncologic outcomes, without increasing toxicity. Both multiparametric MRI (mpMRI) and PSMA PET can be used to identify IPLs.

View Article and Find Full Text PDF
Article Synopsis
  • * A new machine learning method was developed to estimate 3D chromatin contacts from genomic sequences, applied to a diverse group of modern humans and ancestral genomes, revealing differences in contact patterns that don't always match sequence differences.
  • * The research identified specific genomic regions with significant 3D divergence, suggesting that even small genetic changes can affect chromatin contacts significantly, highlighting the complexity of genetic variation's role in gene regulation.
View Article and Find Full Text PDF