Volume 89, Issue 1 pp. 1-10
Coronary Artery Disease

Long-term prognostic value of risk scores after drug-eluting stent implantation for unprotected left main coronary artery: A pooled analysis of the ISAR-LEFT-MAIN and ISAR-LEFT-MAIN 2 randomized clinical trials

Erion Xhepa MD

Erion Xhepa MD

Deutsches Herzzentrum, Technische Universität München, Munich, Germany

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Tomohisa Tada MD

Tomohisa Tada MD

Deutsches Herzzentrum, Technische Universität München, Munich, Germany

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Sebastian Kufner MD

Sebastian Kufner MD

Deutsches Herzzentrum, Technische Universität München, Munich, Germany

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Gjin Ndrepepa MD

Gjin Ndrepepa MD

Deutsches Herzzentrum, Technische Universität München, Munich, Germany

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Robert A. Byrne MB BcH, PhD

Robert A. Byrne MB BcH, PhD

Deutsches Herzzentrum, Technische Universität München, Munich, Germany

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Johanna Kreutzer MD

Johanna Kreutzer MD

Deutsches Herzzentrum, Technische Universität München, Munich, Germany

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Tareq Ibrahim MD

Tareq Ibrahim MD

Medizinische Klinik, Klinikum rechts der Isar, Technische Universität Muenchen, Munich, Germany

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Klaus Tiroch MD

Klaus Tiroch MD

Helios Clinic Wuppertal, Med. Klinik 3 – Kardiologie, Wuppertal, Germany

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Marco Valgimigli MD, PhD

Marco Valgimigli MD, PhD

Thoraxcenter, Ba 587, Erasmus MC, Rotterdam, the Netherlands

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Ralf Tölg MD

Ralf Tölg MD

Herzzentrum, Kardiologie, Segeberger Kliniken, Bad Segeberg, Germany

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Salvatore Cassese MD, PhD

Salvatore Cassese MD, PhD

Deutsches Herzzentrum, Technische Universität München, Munich, Germany

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Massimiliano Fusaro MD

Massimiliano Fusaro MD

Deutsches Herzzentrum, Technische Universität München, Munich, Germany

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Heribert Schunkert MD

Heribert Schunkert MD

Deutsches Herzzentrum, Technische Universität München, Munich, Germany

DZHK (German Centre for Cardiovascular Research), Partner site Munich Heart Alliance, Munich, Germany

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Karl L. Laugwitz MD

Karl L. Laugwitz MD

Medizinische Klinik, Klinikum rechts der Isar, Technische Universität Muenchen, Munich, Germany

DZHK (German Centre for Cardiovascular Research), Partner site Munich Heart Alliance, Munich, Germany

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Julinda Mehilli MD

Julinda Mehilli MD

DZHK (German Centre for Cardiovascular Research), Partner site Munich Heart Alliance, Munich, Germany

Klinikum der Universität München; Medizinische Klinik I, Munich, Germany

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Adnan Kastrati MD

Corresponding Author

Adnan Kastrati MD

Deutsches Herzzentrum, Technische Universität München, Munich, Germany

DZHK (German Centre for Cardiovascular Research), Partner site Munich Heart Alliance, Munich, Germany

Correspondence to: Adnan Kastrati, MD, Deutsches Herzzentrum München, Lazzarettstrasse 36, 80636, Munich, Germany. E-mail: [email protected]Search for more papers by this author
First published: 12 August 2016
Citations: 4

Conflict of interest: Nothing to report.

Abstract

Objectives

To evaluate the long-term prognostic value of risk scores in the setting of drug-eluting stent (DES) implantation for uLMCA.

Background

Data on the prognostic value of novel risk scores developed to select the most appropriate revascularization strategy in patients undergoing DES implantation for uLMCA disease are relatively limited.

Methods

The study represents a patient-level pooled analysis of the ISAR-LEFT-MAIN (607 patients randomized to paclitaxel-eluting or sirolimus-eluting stents) and the ISAR-LEFT-MAIN-2 (650 patients randomized to everolimus-eluting or zotarolimus-eluting stents) randomized trials. The Syntax Score (SxScore) as well the Syntax Score II (SS-II), the EuroSCORE and the Global Risk Classification (GRC) were calculated. The primary outcome was all-cause mortality.

Results

At a mean follow-up of 3 years there were 160 deaths (12.7%). The death-incidence was significantly higher in the upper tertiles than in the intermediate or lower ones for all risk scores (log-rank test P < 0.01 for all comparisons). The discriminatory power of a multivariable model for prediction of 3-year mortality was significantly improved after the inclusion of EuroSCORE (adjusted area under the receiver operating characteristic (ROC) curve = 0.779, 95% confidence interval 0.747 to 0.810, P = 0.008), but not after the inclusion of SxScore, SS II, or GRC.

Conclusions

In patients undergoing DES implantation for uLMCA disease, all evaluated risk scores were able to stratify the mortality risk at long-term follow-up. EuroSCORE was the only risk score that significantly improved the discriminatory power of a multivariable model to predict long-term mortality. © 2016 Wiley Periodicals, Inc.

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