Publications by authors named "Shun-Fu Lee"

Background: Composite outcomes in cardiovascular trials often group events of unequal clinical importance, and conventional analyses may obscure treatment trade-offs. Generalised pairwise comparisons (GPC), expressed as a win ratio (WR), allow for hierarchical ranking of events and incorporation of recurrent outcomes, providing a potentially more intuitive assessment of benefit-risk.

Methods: In a prespecified exploratory analysis of the 2×2 factorial, randomised CLEAR (Colchicine and Spironolactone in Patients with Myocardial Infarction) trial (7062 patients within 72 hours of acute myocardial infarction (MI) and percutaneous coronary intervention), we applied both time-to-first and recurrent-event GPC to reassess low-dose colchicine (0.

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Background: Patients undergoing maintenance dialysis for kidney failure are at substantial risk of cardiovascular morbidity and mortality. We aimed to establish if spironolactone reduces heart failure and cardiovascular deaths in these patients.

Methods: ACHIEVE was an international, parallel-group, randomised controlled trial done in 143 dialysis programmes in 12 countries.

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BackgroundThere is a critical shortage of biostatistics expertise and targeted training programs in clinical trials across Canada.MethodsThe Canadian Network for Statistical Training in Trials (CANSTAT), a pan-Canadian, multi-institutional training platform for biostatisticians in clinical trials, was developed to increase clinical trial biostatistics capacity in Canada.ResultsCANSTAT's training program integrates experiential learning through mentorship and placements at clinical trial sites, online workshops, and capacity-building meetings.

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Background: Diabetes and prediabetes are associated with premature death and are recognized as conditions of accelerated biologic aging. To date, the best measurement of biologic age is chronologic age. Measures of biologic age that can replace chronologic age as a predictor of death can better approximate risk in affected individuals.

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Background: In cardiovascular (CV) trials, analyzing the total number of events, rather than just time-to-first event, enhances understanding of participants' health. Adapting Cox models to account for between-subject heterogeneity in multiple events and understanding its impact plays crucial roles in total event analysis.

Method: This study compares effect sizes from first event and total event analyses in three cardiovascular trials: ORIGIN (N = 12,537, median follow-up of 6.

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Background: The mineralocorticoid aldosterone may contribute to the risk of cardiovascular morbidity and mortality in patients receiving maintenance dialysis. Whether spironolactone, a mineralocorticoid receptor antagonist, improves outcomes for patients receiving maintenance dialysis is unclear.

Objective: To assess the efficacy and safety of spironolactone in patients receiving maintenance dialysis.

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Objectives: We conducted a systematic literature review to summarize the application of statistical methods for analyzing treatment effect on EQ-5D in randomized clinical trials (RCTs).

Method: We searched 2 electronic databases (MEDLINE and EMBASE, from inception through 2021) and www.

Clinicaltrial: gov.

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Importance: Delirium is common after cardiac surgery and associated with adverse outcomes. Intraoperative benzodiazepines may increase postoperative delirium but restricting intraoperative benzodiazepines has not yet been evaluated in a randomized trial.

Objective: To determine whether an institutional policy of restricted intraoperative benzodiazepine administration reduced the incidence of postoperative delirium.

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Aims: Risk prediction indices used in worsening heart failure (HF) vary in complexity, performance, and the type of datasets in which they were validated. We compared the performance of seven risk prediction indices in a contemporary cohort of patients hospitalized for HF.

Methods And Results: We assessed the performance of the Length of stay and number of Emergency department visits in the prior 6 months (LE), Length of stay, number of Emergency department visits in the prior 6 months, and admission N-Terminal prohormone of brain natriuretic peptide (NT-proBNP (LENT), Length of stay, Acuity, Charlson co-morbidity index, and number of Emergency department visits in the prior 6 months (LACE), Get With The Guidelines Heart Failure (GWTG), Readmission Risk Score (RRS), Enhanced Feedback for Effective Cardiac Treatment model (EFFECT), and Acute Decompensated Heart Failure National Registry (ADHERE) risk indices among consecutive patients hospitalized for HF and discharged alive from January 2017 to December 2019 in a network of hospitals in England.

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Article Synopsis
  • * A total of 7062 patients participated, and the results showed no significant difference in primary cardiovascular outcomes between the colchicine group (9.1%) and the placebo group (9.3%) over a 3-year follow-up period.
  • * Colchicine did lower C-reactive protein levels, indicating some anti-inflammatory effect, but it also caused more diarrhea compared to placebo, though serious infections were similar in both groups.
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Background: Mineralocorticoid receptor antagonists have been shown to reduce mortality in patients after myocardial infarction with congestive heart failure. Whether routine use of spironolactone is beneficial after myocardial infarction is uncertain.

Methods: In this multicenter trial with a 2-by-2 factorial design, we randomly assigned patients with myocardial infarction who had undergone percutaneous coronary intervention to receive either spironolactone or placebo and either colchicine or placebo.

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Aims: Heart failure (HF) is a leading cause of hospitalization, and sex differences in care have been described. We assessed sex-specific clinical outcomes and healthcare resource utilization following hospitalization for HF.

Methods And Results: This was an exploratory analysis of patients hospitalized for HF across 10 Canadian hospitals in the Patient-Centered Care Transitions in HF (PACT-HF) cluster-randomized trial.

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Background: The Mini-Mental State Examination (MMSE) and the Montreal Cognitive Assessment (MoCA) questionnaires are commonly used to measure global cognition in clinical trials. Because these scales are discrete and bounded with ceiling and floor effects and highly skewed, their analysis as continuous outcomes presents challenges. Normality assumptions of linear regression models are usually violated, which may result in failure to detect associations with variables of interest.

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Background: In the ARTESiA trial (Apixaban for the Reduction of Thromboembolism in Patients With Device-Detected Subclinical Atrial Fibrillation), apixaban, compared with aspirin, reduced stroke or systemic embolism in patients with device-detected subclinical atrial fibrillation (SCAF). Clinical guidelines recommend considering SCAF episode duration when deciding whether to prescribe oral anticoagulation for this population.

Methods: We performed a retrospective cohort study in ARTESiA.

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Background And Aims: The optimal antithrombotic therapy in patients with device-detected atrial fibrillation (DDAF) is unknown. Concomitant vascular disease can modify the benefits and risks of anticoagulation.

Methods: These pre-specified analyses of the NOAH-AFNET 6 (n = 2534 patients) and ARTESiA (n = 4012 patients) trials compared anticoagulation with no anticoagulation in patients with DDAF with or without vascular disease, defined as prior stroke/transient ischaemic attack, coronary or peripheral artery disease.

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Background: Recent evidence has suggested use of the right internal mammary artery (RIMA) is associated with worse clinical outcomes in patients undergoing coronary artery bypass grafting (CABG) surgery. Therefore, we compared the clinical consequences of secondary conduit selection (RIMA vs radial artery vs saphenous vein) after CABG.

Methods: A post-hoc analysis of the CABG Off or On Pump Revascularization Study, involving 3913 patients from 79 centers in 19 countries who underwent CABG surgery and received arterial grafting with at least 2 grafts.

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Article Synopsis
  • - The CLEAR SYNERGY trial is investigating the safety and effectiveness of low-dose colchicine and spironolactone in reducing major cardiovascular events in patients recovering from a heart attack (myocardial infarction).
  • - This large, randomized controlled study includes 7,062 participants from 104 centers across 14 countries and uses a factorial design to compare the treatments against placebos, focusing on specific cardiovascular outcomes.
  • - Results are expected to be presented in fall 2024, and the study aims to provide valuable data on these medications' impact on post-MI patients who have undergone a procedure called percutaneous coronary intervention.
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Article Synopsis
  • The study aimed to investigate how changes in multiple biological measurements (like blood pressure and cholesterol) over time affect cognitive performance and cardiovascular disease risk.
  • Data from the ORIGIN trial were analyzed, focusing on how the variability in these measurements relates to cognitive tests (MMSE score) and cardiovascular events.
  • Results showed that higher variability in certain biological measures is linked to worse cognitive performance and a greater risk of cardiovascular issues, with a stronger impact observed in individuals with high variability in four or more measurements.
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Article Synopsis
  • The study aimed to find clinical and biochemical indicators that can point out individuals with dysglycaemia (diabetes/pre-diabetes) who do not experience serious health issues during follow-up.
  • Researchers analyzed data from the ORIGIN study involving over 12,500 adults to determine factors linked to remaining free from major health outcomes over a median follow-up of 6.2 years.
  • Key findings showed that younger age, female sex, and specific clinical and biomarker profiles can effectively identify individuals with prediabetes or early type 2 diabetes who are least likely to face serious health complications.
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Our objective was to evaluate the clinical effectiveness of the SYNERGY stent (Boston Scientific Corporation, Marlborough, Massachusetts) in patients with ST-elevation myocardial infarction (STEMI). The only drug-eluting stent approved for treatment of STEMI by the Food and Drug Administration is the Taxus stent (Boston Scientific) which is no longer commercially available, so further data are needed. The CLEAR (Colchicine and spironolactone in patients with myocardial infarction) SYNERGY stent registry was embedded into a larger randomized trial of patients with STEMI (n = 7,000), comparing colchicine versus placebo and spironolactone versus placebo.

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Aims: Patients are at high risk of death or readmission following hospitalization for heart failure (HF). We tested the effect of a transitional care model that included month-long nurse-led home visits and long-term heart function clinic visits - with services titrated to estimated risk of clinical events - on 3-year outcomes following hospitalization.

Methods And Results: In a pragmatic, stepped-wedge cluster randomized trial, 10 hospitals were randomized to the intervention versus usual care.

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Background: Survivors of stroke are often concerned about cognitive problems, and information on the risk of cognitive problems often comes from small studies. We aimed to estimate years of cognitive ageing associated with stroke compared with transient ischaemic attack, myocardial infarction, and other hospitalisations in a large population.

Methods: Using data from six randomised controlled trials (ORIGIN, ONTARGET, TRANSCEND, COMPASS, HOPE-3, and NAVIGATE ESUS), we completed an individual participant data meta-analysis using data requested from the Public Health Research Institute to estimate the association of stroke (by type and severity), transient ischaemic attack, myocardial infarction, and other hospitalisations with cognitive performance measured at the end of each trial.

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Introduction: Sex hormone-binding globulin (SHBG), which binds most of circulating testosterone in blood, has been linked to dysglycemia and cardiovascular disease but the relationship with heart failure remains unclear.

Aim: To study the relation between SHBG and heart failure hospitalizations.

Methods: SHBG levels were analysed in dysglycemic participants at high cardiovascular risk (n = 8401) followed for a median of 6.

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