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Incidence, correlates, and significance of abnormal cardiac enzyme rises in patients treated with surgical or percutaneous based revascularisation: A substudy from the Synergy between Percutaneous Coronary Interventions with Taxus and Cardiac Surgery (SYNTAX) Trial
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2013 (English)In: International Journal of Cardiology, ISSN 0167-5273, E-ISSN 1874-1754, Vol. 168, no 6, 5287-5292 p.Article in journal (Refereed) Published
Abstract [en]

Aims: The aimof the present investigationwas to determine the long-termprognostic association of post-procedural cardiac enzyme elevation within the randomised Synergy between Percutaneous Coronary Intervention (PCI) with TAXUS and Cardiac Surgery (SYNTAX) Trial. Methods: 1800 patients with unprotected left main or de novo three-vessel coronary artery disease were randomised to undergo coronary artery bypass graft (CABG) surgery or PCI. Per protocol patients underwent post-procedural blood sampling with creatine kinase (CK), and the cardiac specific MB iso-enzyme (CK-MB) only if the preceding CK ratiowas = 2x the upper limit of normal (ULN). An independent chemistry laboratory evaluated all collected blood samples. Results: Post-procedural CK sampling was available in 1629 of 1800 patients (90.5%). As per protocol, CK-MB analyses were undertaken in 474 of 491 patients (96.5%) in the CABG arm, and 53 of 61 patients (86.9%) in the PCI arm. Within the CABG arm, despite the limitations of incomplete data, a post-procedural CK-MB ratio <3/>= 3 ULNseparated 4-year mortality into low-and high-risk groups (2.3% vs. 9.5%, p = 0.03). Additionally, in the CABG arm, a post-procedural CK-MB ratio = 3 ULN was associated with an increased frequency of a high SYNTAX Score (= 33) tertile (high [>= 33] SYNTAX Score: 39.5%, intermediate [23-32] SYNTAX Score 31.0%, low [>= 22] SYNTAX Score 29.5%, p = 0.02). Within the PCI arm, a post-procedural CK ratio of >2 or >= 2 ULN separated 4-year mortality into low-and high-risk groups (10.8% vs. 23.3%, p = 0.001). Notably, there was an early (within 6 months) and late (after 2 years) peak in mortality in patients with a post-PCI CK ratio of = 2 ULN. Lack of pre-procedural thienopyridine, carotid artery disease, type 1 diabetes, andpresenceof coronary bifurcationswere independent correlates of a CK ratio = 2 ULNpost-PCI. Conclusion: Cardiac enzyme elevations post-CABG or post-PCI are associatedwith an adverse long-termmortality; the causes of which are multifactorial.

Place, publisher, year, edition, pages
2013. Vol. 168, no 6, 5287-5292 p.
Keyword [en]
SYNTAX, Biomarkers, CABG, PCI, Mortality
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Medical and Health Sciences
Identifiers
URN: urn:nbn:se:uu:diva-211797DOI: 10.1016/j.ijcard.2013.08.013ISI: 000326220300035OAI: oai:DiVA.org:uu-211797DiVA: diva2:668676
Available from: 2013-12-02 Created: 2013-12-02 Last updated: 2017-12-06Bibliographically approved

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James, StefanStåhle, Elisabeth

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