High coronary calcium score and post-procedural CK-MB are noninvasive predictors of coronary stent restenosis
Authors Lee JB, Choi YS, Chung WB, Kwon AM, Park CS, Lee MY
Received 24 October 2016
Accepted for publication 13 January 2017
Published 17 February 2017 Volume 2017:12 Pages 399—404
Checked for plagiarism Yes
Review by Single-blind
Peer reviewers approved by Dr Lucy Goodman
Peer reviewer comments 4
Editor who approved publication: Dr Richard Walker
Jae-Beom Lee,1 Yun-Seok Choi,2 Woo-Baek Chung,2 Ami Kwon,2 Chul-Soo Park,2 Man-Young Lee2
1Anyang Sam Hospital, 2Division of Cardiology, Department of Internal Medicine, Youido St Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
Purpose: High coronary calcium score (CCS) and post-procedural cardiac enzyme may be related with poor outcomes in patients with coronary stent implantation.
Methods: A total of 1,072 patients (63.2% male, mean age: 61.7±10.3 years) who underwent coronary multi-detect computed tomography at index procedure and follow-up coronary angiography (CAG) after drug-eluting stent (DES) were divided into two groups: those with and without target lesion revascularization (TLR; >50% reduction in luminal stent diameter or angina symptoms on follow-up CAG). The CCSs for predicting stent revascularization were elucidated.
Results: There were no significant differences between the two groups with regard to risk factors. The initial CCS was significantly higher in the TLR group (1,102.4±743.7 vs 345.8±51.05, P=0.04). After adjustment of significant factors for TLR, only CCS and post-procedural creatine kinase MB form (CK-MB) elevation were significant predictors of coronary artery TLR. Receiver operation curve revealed that >800 in CCS had 69% in sensitivity and 88% in specificity about predicting the TLR.
Conclusion: High CCS with post-procedural CK-MB might be the useful predictors for TLR after DES implantation.
Keywords: coronary restenosis, drug-eluting stents, calcium, creatine kinase
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