Coronary artery calcification score is an independent predictor of the no-reflow phenomenon after reperfusion therapy in acute myocardial infarction

Rodrigo Modolo, Valeria N. Figueiredo, Filipe A. Moura, Breno Almeida, Jose C. Quinaglia e Silva, Wilson Nadruz, Pedro A. Lemos, Otavio R. Coelho, Michael J. Blaha, Andrei C. Sposito

Research output: Contribution to journalArticle

Abstract

Aim/Background Abundant evidence shows that coronary artery calcification (CAC) is a strong marker of structural and functional changes within the artery wall. Thus far, the implications of CAC in patients with acute coronary syndromes remain unclear. We aimed to investigate whether the CAC score is associated with impaired reperfusion during the acute phase of ST-elevation myocardial infarction (STEMI). Methods We enrolled 60 consecutive STEMI patients to undergo cardiac computed tomography for assessment of the CAC score within 1 week after STEMI. Coronary thrombus burden, coronary blood flow (TIMI flow), and myocardial blush grade (MBG) were evaluated systematically. Patients with maximal TIMI flow and MBG were grouped as optimal reperfusion (n=27) and their counterparts as no-reflow (NR, n=33). Results There were no differences in the clinical characteristics between groups. Patients in the NR group had higher heart rate, coronary angiographic severity, and CAC score. CAC score greater than 100 was associated independently with the presence of NR (odds ratio 4.4, 95% confidence interval 1.17-16.3). The CAC score of nonculprit coronary arteries was higher in NR individuals than in their counterparts (P=0.04). In addition, the CAC score of the isnfarct-related artery correlated negatively with the TIMI-flow rate (r=-0.54, P<0.001) and with the MBG (r=-0.32, P=0.04). Conclusion The CAC score is associated with the presence of the NR phenomenon in STEMI patients. Coron Artery Dis 26:562-566

Original languageEnglish (US)
Pages (from-to)562-566
Number of pages5
JournalCoronary artery disease
Volume26
Issue number7
DOIs
StatePublished - Sep 25 2015

Keywords

  • calcium score
  • myocardial infarction
  • no-reflow

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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    Modolo, R., Figueiredo, V. N., Moura, F. A., Almeida, B., Quinaglia e Silva, J. C., Nadruz, W., Lemos, P. A., Coelho, O. R., Blaha, M. J., & Sposito, A. C. (2015). Coronary artery calcification score is an independent predictor of the no-reflow phenomenon after reperfusion therapy in acute myocardial infarction. Coronary artery disease, 26(7), 562-566. https://doi.org/10.1097/MCA.0000000000000269