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Validation and comparison of the long-term prognostic capability of the SYNTAX score-II among 1,528 consecutive patients who underwent left main percutaneous coronary intervention

  • Bo Xu
  • , Philippe Généreux
  • , Yuejin Yang
  • , Martin B. Leon
  • , Liang Xu
  • , Shubin Qiao
  • , Yongjian Wu
  • , Hongbing Yan
  • , Jilin Chen
  • , Yelin Zhao
  • , Yanyan Zhao
  • , Tullio Palmerini
  • , Gregg W. Stone
  • , Runlin Gao

Research output: Contribution to journalArticlepeer-review

64 Scopus citations

Abstract

Objectives This study sought to evaluate the long-term prognostic capacity of the SYNTAX (Synergy Between Percutaneous Coronary Intervention With Taxus and Cardiac Surgery) score II (SS-II) and compare it with other risk scores among patients undergoing left main percutaneous coronary intervention (LM-PCI).

Background Recently, the SS-II was developed in an attempt to individualize and help the decision-making process between PCI and coronary artery bypass graft (CABG) surgery in the management of complex coronary artery disease (CAD). However, there is a paucity of data regarding the utility of SS-II in patients undergoing LM-PCI.

Methods Data from 1,528 consecutive patients from a single center undergoing unprotected LM-PCI were prospectively collected. The SS-II and other scores were then derived using patients' baseline clinical characteristics. Patients were stratified according to tertiles of SS-II for PCI: SS-II ≤21 (n = 508), SS-II >21 and ≤28 (n = 480), and ≥28 (n = 540). Predictive capability for long-term mortality was compared between angiographic scores and scores combining both angiographic and clinical variables.

Results At a mean follow-up of 4.4 years, mortality in the first, second, and third SS-II tertiles was 1.8%, 3.5%, and 9.4%, respectively (p < 0.0001). Multivariate analysis showed SS-II to be a strong independent predictor of mortality (hazard ratio: 1.76, 95% confidence interval: 1.10 to 2.82; p = 0.02) after LM-PCI. When compared with the angiographic SS, scores combining both clinical and angiographic variables, such as the SS-II, were superior in terms of long-term prognostication.

Conclusions Results of this large series of consecutive patients who underwent unprotected LM-PCI suggested that the SS-II has better long-term prognostic power in terms of mortality compared with the original purely angiographic SS.

Original languageEnglish
Pages (from-to)1128-1137
Number of pages10
JournalJACC: Cardiovascular Interventions
Volume7
Issue number10
DOIs
StatePublished - 1 Oct 2014
Externally publishedYes

Keywords

  • SYNTAX score
  • SYNTAX score II
  • coronary artery bypass grafting
  • left main
  • percutaneous coronary intervention

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