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Predictors of poor clinical outcomes in patients with acute myocardial infarction and non-obstructed coronary arteries (MINOCA)

Ciliberti, G; Coiro, S; Tritto, I; Benedetti, M; Guerra, F; Del Pinto, M; Finocchiaro, G; Cavallini, C; Capucci, A; Kaski, JC; et al. Ciliberti, G; Coiro, S; Tritto, I; Benedetti, M; Guerra, F; Del Pinto, M; Finocchiaro, G; Cavallini, C; Capucci, A; Kaski, JC; Ambrosio, G (2018) Predictors of poor clinical outcomes in patients with acute myocardial infarction and non-obstructed coronary arteries (MINOCA). International Journal of Cardiology, 267. pp. 41-45. ISSN 1874-1754 https://doi.org/10.1016/j.ijcard.2018.03.092
SGUL Authors: Kaski, Juan Carlos

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Abstract

Objective To assess the characteristics and prognosis of patients with myocardial infarction and non-obstructed coronary arteries (MINOCA). Methods MINOCA was defined as acute myocardial infarction (AMI) with angiographic coronary stenosis <50%.Cardiomyopathies and myocarditis were — a priori — excluded from the study. Stenoses <30% were considered normal coronary arteries (NCA); stenoses ≥30% but <50% were considered mild coronary artery disease (MCAD). Patients were subdivided in 3 groups: I) NCA (0 vessels; stenosis <30%); II) 1–2 vessels showing MCAD and III) MCAD in 3 vessels or the left main stem (LMS). Results From January 2006 to December 2014, 7935 consecutive AMI patients were entered into our institutional database;150 (2%) were diagnosed as having MINOCA. At a median follow-up of 7.1 years the composite end-point (cardiovascular death, AMI or acute coronary syndrome, heart failure, stroke) occurred in 23 patients (17.4%). Survival analysis showed no differences between NCA versus MCAD (p = 0.781). When assessed by distribution of CAD, group III had a lower event-free survival compared to group I and group II, respectively 54 ± 14%, 83 ± 4% and 90 ± 5% (p = 0.001). In a multivariate model, only 3 vessel disease or LMS involvement (HR = 23.5, 95% CI 2.59–173.49, P = 0.001) and high C-reactive protein at hospital admission (HR = 1.47, 95% CI 1.06–2.07, P = 0.005) were significant predictors of the study composite endpoint. Conclusions In patients with MINOCA, the presence of NCA or 1–2 vessel MCAD was associated with better long-term clinical outcomes compared with patients with MCAD affecting 3 vessels or the LMS. Increased CRP concentrations on hospital admission were also a marker of worse clinical outcome during follow-up.

Item Type: Article
Additional Information: © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Keywords: 1102 Cardiovascular Medicine And Haematology
SGUL Research Institute / Research Centre: Academic Structure > Molecular and Clinical Sciences Research Institute (MCS)
Journal or Publication Title: International Journal of Cardiology
ISSN: 1874-1754
Dates:
DateEvent
15 September 2018Published
27 June 2018Published Online
19 March 2018Accepted
Publisher License: Creative Commons: Attribution-Noncommercial-No Derivative Works 4.0
URI: https://openaccess.sgul.ac.uk/id/eprint/109671
Publisher's version: https://doi.org/10.1016/j.ijcard.2018.03.092

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