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Comparative Study
. 2003 Jun;89(6):625-8.
doi: 10.1136/heart.89.6.625.

Coronary calcifications in young patients with first, unheralded myocardial infarction: a risk factor matched analysis by electron beam tomography

K Pohle  1 , D Ropers, R Mäffert, P Geitner, W Moshage, M Regenfus, M Kusus, W G Daniel, S Achenbach
Affiliations
Comparative Study

Coronary calcifications in young patients with first, unheralded myocardial infarction: a risk factor matched analysis by electron beam tomography

K Pohle et al. Heart. 2003 Jun.

Abstract

Objective: To compare the presence and extent of coronary calcifications in young patients with first, unheralded acute myocardial infarction with matched controls without a history of coronary artery disease.

Methods: In 102 patients under 60 years of age (19-59 years, mean 41 years; 88% male), electron beam tomography was done 1-14 days after acute myocardial infarction, before any coronary intervention. Coronary calcifications were quantified using the Agatston score. Age related calcium centiles were determined based on the Mayo Clinic "epidemiology of coronary calcification" study, and results were compared with a group of 102 controls without coronary artery disease, matched for sex, age, and risk factors.

Results: Calcifications were present in 95.1% of patients with acute myocardial infarction and in 59.1% of controls (p = 0.008). The mean (SD) Agatston score was 529 (901) in the infarct patients versus 119 (213) in the controls (p < 0.001). An Agatston score above the 50th centile was present in 87.2% of infarct patients and 47.0% of controls (p = 0.006), and above the 90th centile in 60.7% of infarct patients and only 5.8% of controls (p = 0.001).

Conclusions: In young patients with their first, unheralded acute myocardial infarction, the presence and extent of coronary calcium are significantly greater than in matched controls.

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Figures

Figure 1
Figure 1
Box plots representing the Agatston score of the left anterior descending coronary artery (LAD), circumflex coronary artery (CX), and right coronary artery (RCA) of patients with myocardial infarction. The patients have been separated according to culprit vessel.
Figure 2
Figure 2
Panels A–C: Cross sections of the heart of a 28 year old male patient after an acute anterior myocardial infarct, showing coronary calcifications (arrowheads) in all coronary vessels (LAD, left anterior descending coronary artery; CX, circumflex artery; RCA, right coronary artery).
See this image and copyright information in PMC

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