CCTA-based CABG SYNTAX Score: a Tool to Evaluate Completeness of Coronary Segment Revascularization After Bypass Surgery

Overview

Journal Int J Cardiovasc Imaging

Publisher Springer

Specialty Radiology

Date 2023 Nov 3

PMID 37921898

Authors

Nozomi Kotoku

Patrick W Serruys

Shigetaka Kageyama

Scot Garg

Shinichiro Masuda

Kai Ninomiya

Juan B Grau

Himanshu Gupta

Vikram Agarwal

Marie-Angele Morel

Torsten Doenst

Ulrich Schneider

Kaoru Tanaka

Mark LaMeir

Saima Mushtaq

Pontone Gianluca

Giulio Pompilio

Ulf Teichgraber

John Puskas

Jagat Narula

Johan De Mey

Daniele Andreini

Yoshinobu Onuma

Affiliations

Soon will be listed here.

Abstract

To describe the updated coronary computed tomographic angiography (CCTA)-based coronary artery bypass graft (CABG) anatomic SYNTAX Score (aSS) and assess its utility and reproducibility for assessing the completeness of revascularization after CABG. The CCTA-CABG aSS is a visual assessment using CCTA post-CABG which quantifies the failure in effectively grafting stenotic coronary segments, and therefore assesses the completeness of surgical revascularization. It is calculated by subtracting the aSS of successfully anastomosed coronary segments from the aSS of the native coronary tree. The inter-observer reproducibility of the CCTA-CABG aSS was evaluated in 45 consecutive patients with three-vessel disease with or without left main disease who underwent a CCTA 30 days (± 7 days) after CABG. The CCTA-CABG aSS was evaluated in 45 consecutive patients with 117 bypass grafts and 152 anastomoses. The median native coronary aSS was 35.0 [interquartile range (IQR) 27.0-41.0], whilst the median CCTA-CABG aSS was 13.0 (IQR 9.0-20.5). The inter-observer level of agreement for the native coronary aSS and the CCTA-CABG aSS were both substantial with respective Kappas of 0.67 and 0.61. The CCTA-CABG aSS was feasible in all patients who underwent CABG for complex coronary artery disease with substantial inter-observer reproducibility, and therefore can be used to quantify the completeness of revascularization after CABG.

Citing Articles

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PMID: 38015335 DOI: 10.1007/s10554-023-03015-5.

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