Journal of Thrombosis and Thrombolysis

, Volume 38, Issue 4, pp 503–509 | Cite as

Edge dissection of calcified plaque as a possible mechanism for acute coronary syndrome

  • Cheol Whan Lee
  • Soo-Jin Kang
  • Jung-Min Ahn
  • Sung-Han Yoon
  • Jong-Young Lee
  • Duk-Woo Park
  • Seung-Whan Lee
  • Young-Hak Kim
  • Seong-Wook Park
  • Seung-Jung Park
Article
  • 129 Downloads

Abstract

We evaluated the incidence and predictors of edge dissection of the calcified culprit plaque in patients with acute coronary syndrome (ACS) or stable angina (SA). Calcified plaque is not rare in patients with ACS, and compliance mismatch may create edge dissection of the calcified plaque to trigger ACS. However, little data are available on calcium edge dissection in relation to ACS. Pre-intervention intravascular ultrasound data were analyzed in 143 patients with ACS (n = 53) or SA (n = 90). Edge dissection of the calcified plaque was found in 14 patients (9.8 %). Patients were divided into two groups based on calcium edge dissection: group I (edge dissection, n = 14) and group II (no edge dissection, n = 129). Clinical and angiographic characteristics were largely similar between the two groups; however, ACS was more common in group I than in group II (64.3 vs. 34.1 %, respectively, p = 0.039). Intravascular ultrasound variables did not differ between the two groups except thrombus and reference measurements, with thrombus more frequently observed in group I than in group II (35.7 vs. 8.5 %, respectively, p = 0.010). Likewise, proximal and distal reference measurements were larger in group I than in group II. Multivariate analysis showed that ACS was the only independent predictor of calcium edge dissection (odds ratio 3.5, 95 % confidence interval 1.1–11.0, p = 0.034). Edge dissection of the calcified plaque was present and more common in ACS patients than in SA patients. Calcium edge dissection may play a role in the pathogenesis of ACS.

Keywords

Acute coronary syndrome Calcium Dissection 

Abbreviations

ACS

Acute coronary syndrome

CSA

Cross-sectional area

EEM

External elastic membrane

IVUS

Intravascular ultrasound

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Cheol Whan Lee
    • 1
  • Soo-Jin Kang
    • 1
  • Jung-Min Ahn
    • 1
  • Sung-Han Yoon
    • 1
  • Jong-Young Lee
    • 1
  • Duk-Woo Park
    • 1
  • Seung-Whan Lee
    • 1
  • Young-Hak Kim
    • 1
  • Seong-Wook Park
    • 1
  • Seung-Jung Park
    • 1
    • 2
  1. 1.Department of Medicine, Asan Medical CenterUniversity of UlsanSeoulKorea
  2. 2.Division of Cardiology, Asan Medical CenterUniversity of UlsanSeoulKorea

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