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Left Main & Coronary Bifurcation Summit (CBS) was founded in 2006 as a think tank dedicated to the treatment of left main and coronary bifurcation lesions. CBS aims to improve cardiological care by refreshing fundamental researches, clinical trials, yearly published guidelines, emerged ideas and case-based discussion.

Association and Affiliations
- Organized by
  
  Nanjing Heart Center
  
  Asian Bifurcation Club (ABC)
  
  Nanjing First Hospital, Nanjing Medical University
- Co-organized by
  
  Chinese Society of Cardiology (CSC)
  
  Capacity Building and Continuing Education Center,National Health and Family Planning Commission (CBCEC)
  
  American Society for Cardiovascular Angiography and Interventions (SCAI)
  
  Asian Heart Society (AHS)
Contact Us
- Registration Administration of Domestic Representatives
  
  Hongjuan Peng : +86-13913895477
  
  Haimei Xu +86-13914736846
  
  cbsnj@cbsmd.cn
- Registration Administration of Overseas Representatives
  
  Ling Lin : +86 (25) 52271398
  
  +86-13951884596
  
  cbs@cbsmd.cn
- Management of Challenging Cases
  
  Yingying Zhao :+86-13815408517
  
  sub@cbsmd.cn
Address

CBS2019 Congress Secretariat, Nanjing First Hospital, Building No.9 68# Changle Road, Nanjing, China

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Research Paper

> Acute Coronary Syndrom

> ASCVD Prevention

> Bifurcation Stenting

> Cardio-Oncology

> Congestive Heart Failure

> DAPT Duration

> Drug Coated Balloon

> Fractional Flow Reserve

> IVUS Guidance

> Optical Coherence Tomography

> Pulmonary Hypertension

> Rotational Atherectomy

> Shear Stress

> Stenting Left Main

> Transcatheter Aortic Valve Replacement

> Percutaneous LAA Occlusion

> Mitral/Tricuspid Valvular Disease

> Other Relevant Articles

Recommended Paper

Management of Acute Myocardial Infarction During the COVID-19 Pandemic

COVID-19 and Thrombotic or Thromboembolic Disease: Implications for Prevention, Antithrombotic Therapy, and Follow-up

CSC Expert Consensus on Principles of Clinical Management of Patients with Severe Emergent Cardiovascular Diseases during the COVID-19 Epidemic

ACC Clinical Bulletin Focuses on Cardiac Implications of Coronavirus (COVID-19)

< >

HOME | SCIENTIFIC LIBRARY | Other Relevant Articles

Other Relevant Articles

Effectiveness-Based Guidelines for the Prevention of Cardiovascular Disease in Women—2011 Update: A Guideline From the American Heart Association Guidelines in review: Comparison of the 2014 AHA/ACC guideline for the management of patients with non-ST-elevation acute coronary syndromes and the 2015 ESC guidelines for the management of acute coronary syndromes in patients presenting without persistent ST-segment elevation Aspirin in the primary and secondary prevention of vascular disease: collaborative meta-analysis of individual participant data from randomised trials Appropriate Use Criteria and Health Status Outcomes Following Chronic Total Occlusion Percutaneous Coronary Intervention: Insights From the OPEN-CTO Registry Screening for Atrial Fibrillation With Electrocardiography US Preventive Services Task Force Recommendation Statement Incidence, Predictors, and Outcomes of In-Hospital Percutaneous Coronary Intervention Following Coronary Artery Bypass Grafting Radial Versus Femoral Access for Coronary Interventions Across the Entire Spectrum of Patients With Coronary Artery Disease: A Meta-Analysis of Randomized Trials Randomized Comparison Between Everolimus-Eluting Bioresorbable Scaffold and Metallic Stent: Multimodality Imaging Through 3 Years

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Volume 74, Issue 16, October 2019

JOURNAL：J Am Coll Cardiol. Article Link

Nonproportional Hazards for Time-to-Event Outcomes in Clinical Trials: JACC Review Topic of the Week

J Gregson, L Sharples, GW Stone et al. Keywords: clinical trials; Cox proportional hazards; nonproportional hazards; statistics; time-to-event outcomes; trial design

ABSTRACT

Most major clinical trials in cardiology report time-to-event outcomes using the Cox proportional hazards model so that a treatment effect is estimated as the hazard ratio between groups, accompanied by its 95% confidence interval and a log-rank p value. But nonproportionality of hazards (non-PH) over time occurs quite often, making alternative analysis strategies appropriate. This review presents real examples of cardiology trials with different types of non-PH: an early treatment effect, a late treatment effect, and a diminishing treatment effect. In such scenarios, the relative merits of a Cox model, an accelerated failure time model, a milestone analysis, and restricted mean survival time are examined. Some post hoc analyses for exploring any specific pattern of non-PH are also presented. Recommendations are made, particularly regarding how to handle non-PH in pre-defined Statistical Analysis Plans, trial publications, and regulatory submissions.

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