45 results match your criteria: "St. Joseph's Healthcare Hamilton and McMaster University.[Affiliation]"
Cannabis
December 2024
Peter Boris Centre for Addictions Research, St. Joseph's Healthcare Hamilton and McMaster University.
Unlabelled: Although Canada legalized cannabis beverages in 2019, most available research on acute cannabis intoxication derives from dried flower and edible products. The distinct bioavailability and pharmacokinetic properties of phytocannabinoids ingested from beverages, however, contribute to significantly different acute and long-term effects that need to be better understood to ensure consumer safety.
Objective: This review investigates existing cannabis beverage literature, with a particular focus on acute intoxication effects.
Int J Drug Policy
December 2024
Peter Boris Centre for Addictions Research, St. Joseph's Healthcare Hamilton and McMaster University, Canada; Michael G. DeGroote Centre for Medicinal Cannabis Research, McMaster University and St. Joseph's Healthcare Hamilton, Canada.
Background: Recreational cannabis legalization marked a significant policy shift in Canada, but has been difficult to evaluate because of the absence of a control group. Although it is unfeasible to evaluate legalization using a randomized controlled trial design, sophisticated statistical techniques can employ quasi-experimental designs using natural experiments. This study evaluates the impact of cannabis legalization in a longitudinal cohort of Canadian emerging adults by comparing changes in cannabis use frequency and related consequences over time to changes in a similar cohort in a United States jurisdiction where no policy change took place.
View Article and Find Full Text PDFAlcohol Alcohol
November 2024
Peter Boris Centre for Addictions Research, St Joseph's Healthcare Hamilton and McMaster University, 100 West 5th Street, Hamilton, Ontario L8N 3K7, Canada.
Aims: Structured clinical interviewing is considered the gold standard in psychiatric diagnosis. The Diagnostic Assessment Research Tool (DART) is a novel modularized, non-copywritten, semi-structured interview; however, no studies have examined the psychometric properties of its alcohol use disorder (AUD) module. The primary aims of this study were to: (i) validate the factor structure of the DART AUD module and (ii) examine measurement invariance across several key demographic and subgroup factors.
View Article and Find Full Text PDFJACC CardioOncol
October 2024
Department of Surgery, McMaster University, Hamilton, Ontario, Canada.
Background: There are limited data on the physical effects of androgen deprivation therapy (ADT) for prostate cancer (PC), and on the relationships of such measures of adiposity and strength to cardiovascular outcomes.
Objectives: The primary objective of this study was to evaluate the relationships of measures of adiposity and strength to cardiovascular outcomes (cardiovascular death, myocardial infarction, stroke, heart failure, arterial revascularization, peripheral arterial disease, and venous thromboembolism) in patients with PC. A secondary objective was to characterize the relationships between ADT use and 12-month changes in these physical measures.
Res Pract Thromb Haemost
August 2024
Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom.
Cardiovascular diseases (CVDs) are the leading cause of mortality globally while also contributing to excess health system costs. Significant advancements have been made in the understanding and prevention of deaths from CVD. In addition to risk factor modifications, one of the key developments in this area is the appropriate prescribing of antiplatelet medications for secondary prevention of CVD.
View Article and Find Full Text PDFAlcohol Alcohol
July 2024
Cofrin Logan Center for Addiction Research and Treatment, University of Kansas, 1000 Sunnyside Ave, Suite 4001, Lawrence, KS 66045USA.
Aims: Previous neuroimaging research in alcohol use disorder (AUD) has found altered functional connectivity in the brain's salience, default mode, and central executive (CEN) networks (i.e. the triple network model), though their specific associations with AUD severity and heavy drinking remains unclear.
View Article and Find Full Text PDFAddiction
June 2024
Peter Boris Centre for Addictions Research, St. Joseph's Healthcare Hamilton and McMaster University, Hamilton, Ontario, Canada.
Background And Aims: Behavioral economic theory predicts that high alcohol demand and high proportionate alcohol-related reinforcement are important determinants of risky alcohol use in emerging adults, but the majority of research to date has been cross-sectional in nature. The present study investigated prospective and dynamic relationships between alcohol demand and proportionate alcohol-related reinforcement in relation to heavy drinking days and alcohol problems.
Design: Longitudinal cohort with assessments every 4 months for 20 months.
NEJM Evid
June 2023
Department of Medicine, Anticoagulation and Clinical Thrombosis Service, Northwell Health at Lenox Hill Hospital, New York.
Anticoagulant and Antiplatelet Drug ManagementManagement of patients on an anticoagulant or antiplatelet drug who require surgery or an invasive procedure is a common clinical problem. Douketis and Spyropoulos provide an evidence-based but practical approach to managing anticoagulants and antiplatelet drugs in the perioperative setting.
View Article and Find Full Text PDFAlcohol Clin Exp Res (Hoboken)
November 2023
Cofrin Logan Center for Addiction Research and Treatment, University of Kansas, Lawrence, Kansas, USA.
Background: Behavioral economic research has revealed significant increases in alcohol demand following exposure to alcohol-related cues. Prior research has focused exclusively on nontreatment-seeking heavy drinkers, included only male participants, or used heterogeneous methods. The current studies sought to replicate and extend existing findings in treatment-seeking and nontreatment-seeking heavy drinkers while also examining sex effects and moderation by alcohol use disorder (AUD) severity.
View Article and Find Full Text PDFPsychol Med
February 2024
Peter Boris Centre for Addictions Research, St. Joseph's Healthcare Hamilton and McMaster University, Hamilton, ON, Canada.
Addict Behav
February 2024
Peter Boris Centre for Addictions Research, St Joseph's Healthcare Hamilton and McMaster University, Hamilton, Ontario L9C 0E3, Canada.
Background: In October 2021, a legal framework that regulates cannabis for recreational purposes in Spain was proposed, but research on its potential impacts on cannabis use is currently limited. This study examined the reliability and discriminant validity of two Marijuana Purchase Tasks (MPTs) for measuring hypothetical legal and illegal cannabis demand, and to examine differences in demand of both commodities in young adults at hazardous vs. non-hazardous cannabis use risk levels.
View Article and Find Full Text PDFAm J Gastroenterol
May 2023
Department of Medicine, McGill University and McGill University Health Center, Montreal, Quebec, Canada.
Introduction: The periprocedural management of patients with atrial fibrillation (AF) using a direct oral anticoagulant (DOAC) undergoing elective gastrointestinal (GI) endoscopic procedure remains uncertain. We investigated the safety of a standardized periprocedural DOAC management strategy.
Methods: The Periprocedural Anticoagulation Use for Surgery Evaluation cohort study enrolled adult patients receiving a DOAC (apixaban, rivaroxaban, or dabigatran) for AF scheduled for an elective procedure or surgery.
Chest
November 2022
F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD.
Background: The American College of Chest Physicians Clinical Practice Guideline on the Perioperative Management of Antithrombotic Therapy addresses 43 Patients-Interventions-Comparators-Outcomes (PICO) questions related to the perioperative management of patients who are receiving long-term oral anticoagulant or antiplatelet therapy and require an elective surgery/procedure. This guideline is separated into four broad categories, encompassing the management of patients who are receiving: (1) a vitamin K antagonist (VKA), mainly warfarin; (2) if receiving a VKA, the use of perioperative heparin bridging, typically with a low-molecular-weight heparin; (3) a direct oral anticoagulant (DOAC); and (4) an antiplatelet drug.
Methods: Strong or conditional practice recommendations are generated based on high, moderate, low, and very low certainty of evidence using the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) methodology for clinical practice guidelines.
Chest
November 2022
F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD.
Background: The American College of Chest Physicians Clinical Practice Guideline on the Perioperative Management of Antithrombotic Therapy addresses 43 Patients-Interventions-Comparators-Outcomes (PICO) questions related to the perioperative management of patients who are receiving long-term oral anticoagulant or antiplatelet therapy and require an elective surgery/procedure. This guideline is separated into four broad categories, encompassing the management of patients who are receiving: (1) a vitamin K antagonist (VKA), mainly warfarin; (2) if receiving a VKA, the use of perioperative heparin bridging, typically with a low-molecular-weight heparin; (3) a direct oral anticoagulant (DOAC); and (4) an antiplatelet drug.
Methods: Strong or conditional practice recommendations are generated based on high, moderate, low, and very low certainty of evidence using the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) methodology for clinical practice guidelines.
Br J Haematol
October 2022
Division of Hematology and Hematological Malignancies, Department of Medicine, University of Calgary, Calgary, Alberta, Canada.
The risk of recurrence after discontinuation of anticoagulation for a combined oral contraceptive (COC)-associated venous thromboembolism (VTE) is unclear. Therefore, we conducted a systematic review and meta-analysis to estimate the incidence of recurrent VTE among women with COC-associated VTE, unprovoked VTE and to compare the incidence of recurrent VTE between the two groups. The Cochrane Central Register of Controlled Trials, Cochrane Database of Systematic Reviews, Embase Classic +Embase and Medline ALL to July 2020 and citations from included studies were searched.
View Article and Find Full Text PDFSurv Ophthalmol
August 2022
McMaster University, Department of Surgery, Division of Ophthalmology, Hamilton, Ontario, Canada; St. Joseph's Healthcare Hamilton and McMaster University, Hamilton, Ontario, Canada; Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada; Department of Surgery, McMaster University, Hamilton, Ontario, Canada. Electronic address:
Anti-vascular endothelial growth factor (Anti-VEGF) agents are the standard of care for diabetic macular edema (CI-DME) with vision loss. They are commonly administered using several treatment protocols, including fixed, pro re nata (PRN) and treat-and-extend (T&E) regimens. Because of the lack of evidence defining an ideal treatment paradigm, we systematically compared T&E with fixed or PRN regimens.
View Article and Find Full Text PDFDev Psychopathol
May 2023
Department of Educational Psychology, McGill University, Montreal, Quebec, Canada.
Negative emotionality (NE) was evaluated as a candidate mechanism linking prenatal maternal affective symptoms and offspring internalizing problems during the preschool/early school age period. The participants were 335 mother-infant dyads from the Maternal Adversity, Vulnerability and Neurodevelopment project. A Confirmatory Bifactor Analysis (CFA) based on self-report measures of prenatal depression and pregnancy-specific anxiety generated a general factor representing overlapping symptoms of prenatal maternal psychopathology and four distinct symptom factors representing pregnancy-specific anxiety, negative affect, anhedonia and somatization.
View Article and Find Full Text PDFClin Transl Sci
July 2022
Department of Medicine, St. Joseph's Healthcare Hamilton and McMaster University, Hamilton, Ontario, Canada.
Apixaban is frequently used off-label in transplant recipients. However, a potential drug interaction exists with the calcineurin inhibitors. We conducted an open-label drug-drug interaction study to determine the pharmacokinetics of apixaban in lung and kidney transplant recipients who were taking a calcineurin inhibitor.
View Article and Find Full Text PDFEye (Lond)
January 2023
St. Joseph's Healthcare Hamilton and McMaster University, Hamilton, ON, L8G 5E4, Canada.
This study aimed to compare efficacy and treatment burden of treat-and-extend (T&E) anti-VEGF against fixed and pro re nata (PRN) regimens for neovascular age-related macular degeneration (nAMD). MEDLINE, CENTRAL, and EMBASE were searched. Randomized-controlled trials and observational studies comparing T&E to PRN or fixed dosing for treatment-naïve AMD patients were included.
View Article and Find Full Text PDFJ Can Assoc Gastroenterol
April 2022
Division of Gastroenterology and Farncombe Family Digestive Health Research Institute, Department of Medicine, McMaster University, Hamilton, Ontario, Canada.
We conducted systematic reviews of predefined clinical questions and used the Grading of Recommendations, Assessment, Development and Evaluations approach to develop recommendations for the periendoscopic management of anticoagulant and antiplatelet drugs during acute gastrointestinal (GI) bleeding and the elective endoscopic setting. The following recommendations target patients presenting with acute GI bleeding: For patients on warfarin, we suggest against giving fresh frozen plasma or vitamin K; if needed, we suggest prothrombin complex concentrate (PCC) compared with fresh frozen plasma administration; for patients on direct oral anticoagulants (DOACs), we suggest against PCC administration; if on dabigatran, we suggest against the administration of idarucizumab, and if on rivaroxaban or apixaban, we suggest against andexanet alfa administration; for patients on antiplatelet agents, we suggest against platelet transfusions; and for patients on cardiac acetylsalicylic acid (ASA) for secondary prevention, we suggest against holding it, but if the ASA has been interrupted, we suggest resumption on the day hemostasis is endoscopically confirmed. The following recommendations target patients in the elective (planned) endoscopy setting: For patients on warfarin, we suggest continuation as opposed to temporary interruption (1-7 days), but if it is held for procedures with high risk of GI bleeding, we suggest against bridging anticoagulation unless the patient has a mechanical heart valve; for patients on DOACs, we suggest temporarily interrupting rather than continuing these; for patients on dual antiplatelet therapy for secondary prevention, we suggest temporary interruption of the P2Y receptor inhibitor while continuing ASA; and if on cardiac ASA monotherapy for secondary prevention, we suggest against its interruption.
View Article and Find Full Text PDFAm J Gastroenterol
April 2022
Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Scottsdale, Arizona, USA.
Am J Gastroenterol
April 2022
Division of Gastroenterology and Farncombe Family Digestive Health Research Institute, Department of Medicine, McMaster University, Hamilton, Ontario, Canada.
We conducted systematic reviews of predefined clinical questions and used the Grading of Recommendations, Assessment, Development and Evaluations approach to develop recommendations for the periendoscopic management of anticoagulant and antiplatelet drugs during acute gastrointestinal (GI) bleeding and the elective endoscopic setting. The following recommendations target patients presenting with acute GI bleeding: For patients on warfarin, we suggest against giving fresh frozen plasma or vitamin K; if needed, we suggest prothrombin complex concentrate (PCC) compared with fresh frozen plasma administration; for patients on direct oral anticoagulants (DOACs), we suggest against PCC administration; if on dabigatran, we suggest against the administration of idarucizumab, and if on rivaroxaban or apixaban, we suggest against andexanet alfa administration; for patients on antiplatelet agents, we suggest against platelet transfusions; and for patients on cardiac acetylsalicylic acid (ASA) for secondary prevention, we suggest against holding it, but if the ASA has been interrupted, we suggest resumption on the day hemostasis is endoscopically confirmed. The following recommendations target patients in the elective (planned) endoscopy setting: For patients on warfarin, we suggest continuation as opposed to temporary interruption (1-7 days), but if it is held for procedures with high risk of GI bleeding, we suggest against bridging anticoagulation unless the patient has a mechanical heart valve; for patients on DOACs, we suggest temporarily interrupting rather than continuing these; for patients on dual antiplatelet therapy for secondary prevention, we suggest temporary interruption of the P2Y12 receptor inhibitor while continuing ASA; and if on cardiac ASA monotherapy for secondary prevention, we suggest against its interruption.
View Article and Find Full Text PDFOphthalmologica
May 2022
Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada.
Objectives: The present review aimed to synthesize evidence from randomized controlled trials (RCTs) that compared outcomes of pars plana vitrectomy (PPV) with and without a supplementary scleral buckle (SB) for management of rhegmatogenous retinal detachment (RRD).
Methods: The authors searched MEDLINE, Embase, and CENTRAL to identify RCTs in English that compared PPV with and without supplemental SB. Risk of bias was assessed according to the Cochrane Risk of Bias 2 tool.
J Int Neuropsychol Soc
July 2021
Peter Boris Centre for Addictions Research, St. Joseph's Healthcare, Hamilton, Ontario, L8N 3K7, Canada.
Objective: To evaluate the associations between cannabis use and neurocognitive functioning, including self-reported attention deficit hyperactivity disorder (ADHD) symptoms, in a large sample of emerging adults (ages 21-25) using a cross-sectional design. A secondary objective was to examine age of cannabis initiation as a moderator.
Methods: Participants were high-risk drinking emerging adults (n = 598) reporting past-month cannabis use in the following categories: 1) non-users (i.
CMAJ
May 2021
Michael G. DeGroote School of Medicine (Rosenberg), McMaster University, Hamilton, Ont.; Stein Eye Institute (Sarraf), David Geffen School of Medicine, University of California Los Angeles; Greater Los Angeles Veterans Administration Healthcare Center (Sarraf), Los Angeles, Calif.; Division of Ophthalmology (Chaudhary), Department of Surgery, and Department of Health Research Methods, Evidence and Impact (HEI) (Chaudhary), McMaster University; St. Joseph's Healthcare Hamilton and McMaster University (Chaudhary), Hamilton, Ont.