Prognostic value of the Syntax score in patients undergoing coronary artery bypass grafting for three-vessel coronary artery disease.
BACKGROUND
The Syntax score prognostic value has recently been highlighted in patients undergoing percutaneous coronary intervention (PCI) for multivessel coronary artery disease (CAD), however its prognostic value in patients undergoing coronary artery bypass grafting (CABG) for multivessel CAD is still unknown. The aim of this study was to evaluate the prognostic value of the Syntax score in patients undergoing CABG for 3-vessel CAD.


METHODS
A cohort of 320 consecutive patients with multivessel (3-vessel) CAD who were subjected for CABG were included in this study and divided into tertiles according to the Syntax score (<24.5, 24.5-34, and >34). During the 1-year follow-up, cardiovascular events including death, myocardial infarction (MI), and stroke were systematically indexed. The primary end point was the composite criteria death/MI/stroke.


RESULTS
The Syntax score ranged from 11-74 with a mean of 31.2 +/- 12.6 and a median of 28.5 [22-38]. Baseline clinical characteristics were similar among the tertiles. No statistical difference was found for the composite criteria death/MI/stroke: 9.4% versus 7.5% versus 10.4% in the groups with a Syntax score <24.5, 24.5-34, and >34, respectively (P = 0.754).


CONCLUSIONS
Unlike for PCI, the Syntax score has a poor prognostic value for severe cardiovascular events in patients undergoing CABG for 3-vessel CAD. Other risk scores should be used to predict the outcome of this population.
Lemesle
Gilles
G
Division of Cardiology, Washington Hospital Center, USA.
Bonello
Laurent
L
de Labriolle
Axel
A
Steinberg
Daniel H
DH
Roy
Probal
P
Pinto Slottow
Tina L
TL
Torguson
Rebecca
R
Kaneshige
Kimberly
K
Xue
Zhenyi
Z
Suddath
William O
WO
Satler
Lowell F
LF
Kent
Kenneth M
KM
Lindsay
Joseph
J
Pichard
Augusto D
AD
Waksman
Ron
R
D000368:Aged; D002318:Cardiovascular Diseases / Q000209:etiology* / Q000401:mortality; D017023:Coronary Angiography; D001026:Coronary Artery Bypass / Q000009:adverse effects* / Q000401:mortality; D003324:Coronary Artery Disease / Q000000981:diagnostic imaging / Q000601:surgery*; D005260:Female; D006801:Humans; D053208:Kaplan-Meier Estimate; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D012189:Retrospective Studies; D018570:Risk Assessment; D012720:Severity of Illness Index; D013997:Time Factors; D016896:Treatment Outcome