Abstract
Aim: The aim of this study was to compare long-term all-cause mortality between patients receiving percutaneous coronary intervention (PCI) and coronary artery bypass grafting (CABG) using multiple (MAG) or single arterial grafting (SAG). Methods and results: The current study is a post hoc analysis of the SYNTAX Extended Survival Study, which compared PCI with CABG in patients with three-vessel (3VD) and/or left main coronary artery disease (LMCAD) and evaluated survival with ≥10 years of follow-up. The primary endpoint was all-cause mortality at maximum follow-up (median 11.9 years) assessed in the as-treated population. Of the 1743 patients, 901 (51.7%) underwent PCI, 532 (30.5%) received SAG, and 310 (17.8%) had MAG. At maximum follow-up, all-cause death occurred in 305 (33.9%), 175 (32.9%), and 70 (22.6%) patients in the PCI, SAG, and MAG groups, respectively (P < 0.001). Multiple arterial grafting [adjusted hazard ratio (HR) 0.66, 95% confidence interval (CI) 0.49-0.89], but not SAG (adjusted HR 0.83, 95% CI 0.67-1.03), was associated with significantly lower all-cause mortality compared with PCI. In patients with 3VD, both MAG (adjusted HR 0.55, 95% CI 0.37-0.81) and SAG (adjusted HR 0.68, 95% CI 0.50-0.91) were associated with significantly lower mortality than PCI, whereas in LMCAD patients, no significant differences between PCI and MAG (adjusted HR 0.90, 95% CI 0.56-1.46) or SAG (adjusted HR 1.11, 95% CI 0.81-1.53) were observed. In patients with revascularization of all three major myocardial territories, a positive correlation was observed between the number of myocardial territories receiving arterial grafts and survival (Ptrend = 0.003). Conclusion: Our findings suggest that MAG might be the more desirable configuration for CABG to achieve lower long-term all-cause mortality than PCI in patients with 3VD and/or LMCAD. Trial registration: Registered on clinicaltrial.gov. SYNTAXES: NCT03417050 (https://clinicaltrials.gov/ct2/show/NCT03417050); SYNTAX: NCT00114972 (https://www.clinicaltrials.gov/ct2/show/NCT00114972).
Original language | English |
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Pages (from-to) | 1334-1344 |
Number of pages | 11 |
Journal | European Heart Journal |
Volume | 43 |
Issue number | 13 |
DOIs | |
Publication status | Published - 1 Apr 2022 |
Bibliographical note
Funding:The SYNTAX Extended Survival study was supported by the German
Foundation of Heart Research (Frankfurt am Main, Germany). The
SYNTAX trial, during 0- to 5-year follow-up, was funded by Boston
Scientific Corporation (Marlborough, MA, USA). Both sponsors had
no role in the study design, data collection, data analyses, and interpretation of the study data, nor were involved in the decision to publish the final manuscript. The principal investigators and authors had
complete scientific freedom. C.G. is supported by Science Foundation
Ireland award (15/RP/2765).
Publisher Copyright:
© 2021 The Author(s) 2021. Published by Oxford University Press on behalf of the European Society of Cardiology.