Calcified Plaques in Patients With Acute Coronary Syndromes.
Tomoyo Sugiyama1, Erika Yamamoto1, Francesco Fracassi1
1Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts.
JACC. Cardiovascular Interventions
|March 23, 2019
Summary
Researchers analyzed calcified plaques in patients with acute coronary syndromes (ACS). The most common type, superficial calcific sheet, is linked to more significant post-procedure heart damage.
Area of Science:
- Cardiology
- Interventional Cardiology
- Vascular Biology
Background:
- Calcified plaques are a common finding in patients experiencing acute coronary syndromes (ACS).
- Systematic study of calcified plaques as an underlying pathology in ACS has been limited.
- Understanding these plaques is crucial for improving patient outcomes.
Purpose of the Study:
- To conduct a detailed analysis of calcified culprit plaques in patients with ACS.
- To identify and classify distinct types of calcified plaques.
- To investigate the prevalence and characteristics of different calcified plaque types.
Main Methods:
- Analysis of optical coherence tomography (OCT) imaging from 1,241 ACS patients.
- Identification of 157 patients (12.7%) with calcified plaques at the culprit lesion.
- Classification of calcified plaques based on morphology: eruptive calcified nodules, superficial calcific sheet, and calcified protrusion.
Main Results:
- Three types of calcified plaques were identified: eruptive calcified nodules (25.5%), superficial calcific sheet (67.4%), and calcified protrusion (7.1%).
- Superficial calcific sheets were most common in the left anterior descending coronary artery (68.4%).
- Eruptive calcified nodules showed the largest calcification index, while superficial calcific sheets were associated with higher peak post-intervention creatine kinase levels, indicating greater myocardial damage.
Conclusions:
- Distinct morphological types of calcified culprit plaques exist in ACS patients.
- Superficial calcific sheet is the most prevalent type and is associated with increased post-intervention myocardial damage.
- Further research may elucidate predictors for coronary plaque erosion in ACS.
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