open access

Vol 23, No 3 (2016)
INTERVENTIONS Original articles
Published online: 2016-01-07
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Does SYNTAX score II predict poor myocardial perfusion in ST-segmen

Gang Wang, Qi Hua, Jing Li, Weiwei Zhu, Hongyu Luo, Yuhui Zhang, Chen Wang
DOI: 10.5603/CJ.a2016.0006
·
Pubmed: 26779971
·
Cardiol J 2016;23(3):317-323.

open access

Vol 23, No 3 (2016)
INTERVENTIONS Original articles
Published online: 2016-01-07

Abstract

Background: SYNTAX score II (SS-II) has been demonstrated to predict long-term outcomes in unprotected left main or multiple vessels in patients with coronary artery disease. However, its prognostic value for patients with ST-segment elevation myocardial infarction (STEMI) remains unknown. The poor myocardial perfusion (myocardial blush grade [MBG] 0/1) after primary percutaneous coronary intervention (pPCI) has a negative prognostic value in patients with STEMI. We aimed to assess SS-II and its possible relationships with MBG 0/1 in patients with STEMI treated with pPCI.

Methods: The study included 477 patients with STEMI who underwent pPCI between October 2010 and May 2014. SYNTAX Score II and MBG were determined in all patients. Myocardial blush grade were divided into MBG 0/1 (poor myocardial perfusion) and MBG 2/3 (normal myocardial perfusion). Patients were divided into three tertiles: SS-IIlow (£ 20), SS-IIintermediate (20–26) and SS-IIhigh (≥ 26).

Results: Compared with the SS-IIintermediate and SS-IIlow tertiles, the SS-IIhigh tertile had more MBG 0/1 (46.1%, 32.1% and 21.8%, p < 0.001, respectively). On multivariate logistic regression analysis, SS-II was an independent predictor of MBG 0/1 (hazard ratio 1.084, 95% confidence interval 1.050–1.119, p < 0.001). Receiver operating characteristic analysis identified SS-II > 24 as the best cut-off value predicting MBG 0/1 (sensitivity of 66%, specificity of 54%).

Conclusions: High SS-II is an independent predictor of MBG 0/1 in patients with STEMI undergoing pPCI.  

Abstract

Background: SYNTAX score II (SS-II) has been demonstrated to predict long-term outcomes in unprotected left main or multiple vessels in patients with coronary artery disease. However, its prognostic value for patients with ST-segment elevation myocardial infarction (STEMI) remains unknown. The poor myocardial perfusion (myocardial blush grade [MBG] 0/1) after primary percutaneous coronary intervention (pPCI) has a negative prognostic value in patients with STEMI. We aimed to assess SS-II and its possible relationships with MBG 0/1 in patients with STEMI treated with pPCI.

Methods: The study included 477 patients with STEMI who underwent pPCI between October 2010 and May 2014. SYNTAX Score II and MBG were determined in all patients. Myocardial blush grade were divided into MBG 0/1 (poor myocardial perfusion) and MBG 2/3 (normal myocardial perfusion). Patients were divided into three tertiles: SS-IIlow (£ 20), SS-IIintermediate (20–26) and SS-IIhigh (≥ 26).

Results: Compared with the SS-IIintermediate and SS-IIlow tertiles, the SS-IIhigh tertile had more MBG 0/1 (46.1%, 32.1% and 21.8%, p < 0.001, respectively). On multivariate logistic regression analysis, SS-II was an independent predictor of MBG 0/1 (hazard ratio 1.084, 95% confidence interval 1.050–1.119, p < 0.001). Receiver operating characteristic analysis identified SS-II > 24 as the best cut-off value predicting MBG 0/1 (sensitivity of 66%, specificity of 54%).

Conclusions: High SS-II is an independent predictor of MBG 0/1 in patients with STEMI undergoing pPCI.  

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Keywords

SYNTAX score II, myocardial perfusion, myocardial blush grade, ST-segment elevation myocardial infarction, primary percutaneous coronary intervention

About this article
Title

Does SYNTAX score II predict poor myocardial perfusion in ST-segmen

Journal

Cardiology Journal

Issue

Vol 23, No 3 (2016)

Pages

317-323

Published online

2016-01-07

DOI

10.5603/CJ.a2016.0006

Pubmed

26779971

Bibliographic record

Cardiol J 2016;23(3):317-323.

Keywords

SYNTAX score II
myocardial perfusion
myocardial blush grade
ST-segment elevation myocardial infarction
primary percutaneous coronary intervention

Authors

Gang Wang
Qi Hua
Jing Li
Weiwei Zhu
Hongyu Luo
Yuhui Zhang
Chen Wang

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