Predicted and Observed Mortality at 10 Years in Patients With Bifurcation Lesions in the SYNTAX Trial

Kai Ninomiya1, Patrick W Serruys2, Scot Garg3

  • 1Department of Cardiology, National University of Ireland, Galway, Galway, Ireland.

Insights

Percutaneous coronary intervention (PCI) for bifurcation lesions is linked to higher 10-year mortality compared to coronary artery bypass grafting (CABG). The SYNTAX score 2020 aids in choosing the best treatment for these complex cases.

Area of Science:

  • Cardiology
  • Interventional Cardiology
  • Cardiac Surgery

Background:

  • Percutaneous coronary intervention (PCI) for bifurcation lesions carries higher adverse event rates.
  • The optimal treatment strategy (PCI vs. coronary artery bypass grafting [CABG]) for bifurcation lesions remains unclear for very long-term outcomes.

Purpose of the Study:

  • To assess the impact of bifurcation lesions on predicted and observed 10-year all-cause mortality.
  • To compare PCI and CABG in patients with and without bifurcation lesions using the SYNTAX score 2020.

Main Methods:

  • Analysis of the SYNTAX Extended Survival (SYNTAXES) study data.
  • Comparison of 10-year mortality between patients with (n=1,300) and without (n=487) bifurcation lesions.
  • Utilized the SYNTAX score 2020 (SS-2020) for individual mortality prediction.

Main Results:

  • PCI patients with >1 bifurcation lesion had higher all-cause death risk (30.1%) vs. no bifurcations (19.8%).
  • CABG showed similar mortality for patients with (23.3%) and without (23.0%) bifurcation lesions.
  • A 2-stent PCI technique was associated with increased mortality compared to a 1-stent technique.

Conclusions:

  • Bifurcation lesions necessitate careful heart team consideration due to higher PCI-related 10-year mortality.
  • Individualized prognosis using SS-2020 can guide treatment decisions for bifurcation lesions.
  • SYNTAXES study provides crucial long-term data on PCI vs. CABG for bifurcation lesions.
Abstract

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