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Published on: April 17, 2021
[Clinicopathologic analysis of myocardial infarction with or without left ventricular aneurysm formation in the
Liu-fa Duan1, Ping Ye, Yan-song Zheng
1Second Department of Cardiology, Southern Building Clinic Division, Chinese People's Liberation Army General Hospital, Beijing 100853, China.
Insights
Elderly patients with left ventricular aneurysm after myocardial infarction often have hypertension and single-vessel disease, unlike those without aneurysms. Aneurysms are linked to higher mortality from heart failure and arrhythmias.
Area of Science:
- Cardiology
- Pathology
- Geriatric Medicine
Context:
- Myocardial infarction (MI) in elderly patients (> 60 years) presents unique challenges.
- Left ventricular aneurysm (LVA) formation is a potential complication of MI.
- Understanding the clinic-pathologic features differentiating LVA formation is crucial for risk stratification and management.
Purpose:
- To analyze the clinic-pathologic features of elderly myocardial infarction patients with and without left ventricular aneurysm formation.
- To compare the characteristics of patients who developed LVA versus those who did not.
Summary:
- A study of 107 elderly MI patients found LVA formation was associated with higher incidence of hypertension, single-vessel disease, and Left Anterior Descending (LAD) coronary artery disease.
- Patients with LVA had less history of angina pectoris but a higher likelihood of death due to heart failure and ventricular arrhythmias.
- LVA commonly occurred in the anterior wall and apex of the left ventricle.
Impact:
- Identifies key risk factors and clinical presentations associated with LVA in elderly MI patients.
- Provides insights into prognostic indicators, highlighting increased mortality risk from heart failure and arrhythmias in LVA patients.
- Informs clinical practice regarding the specific demographic and angiographic profiles of elderly patients prone to LVA development.
Objective:
To analyze the clinic-pathologic features of elderly myocardial infarction patients (> 60 years) with and without left ventricular aneurysm formation.
Methods:
Between January 1980 and October 2009, 107 myocardial infarction patients were divided into aneurysm group (n = 31) and non-aneurysm group (n = 76) according to autopsy results and the clinic-pathologic features of the two groups were compared.
Results:
Previous angina pectoris history was significantly less in aneurysm group than in non-aneurysm group [45.2% (14/31) vs. 92.1% (70/76), P = 0.047]. Incidence of hypertension was significantly higher in aneurysm group than in non-aneurysm group [77.4% (24/31) vs. 36.8% (28/76), P = 0.033]. The percentage of single-vessel disease [54.8% (17/31) vs. 23.7% (18/76), P = 0.033] and the LAD disease [96.8% (30/31) vs. 51.3% (39/76), P = 0.048] were both significantly higher in aneurysm group than in non-aneurysm group. Heart failure and ventricular arrhythmias were more likely the cause of death in patients with aneurysm than patients without aneurysm [56.3% (18/31) vs. 19.7% (15/76), P = 0.007]. Aneurysm mostly located in left ventricular anterior wall and apex.
Conclusions:
Our results suggest that patients with left ventricular aneurysm formation are more likely to have hypertension, single-vessel disease and LAD disease, heart failure and ventricular arrhythmias but less previous angina pectoris than patients without left ventricular aneurysm formation. The common locations of ventricular aneurysm formation were left ventricular anterior wall and apex.
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