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[Left ventricular function and secondary angioplasty after anterior infarction in simple coronary vessel disease]
J P Bruaire1, A Marek, G Jarry
1Service de réanimation cardiaque, Hôpital Sud, Amiens.
Insights
Secondary angioplasty improved arterial patency and left ventricular function after myocardial infarction. This procedure enhanced regional wall motion and ejection fraction in patients with left anterior descending artery disease.
Area of Science:
- Cardiology
- Interventional Cardiology
- Cardiac Imaging
Context:
- Myocardial infarction (MI) significantly impacts left ventricular (LV) function and patient survival.
- Maintaining arterial patency post-MI is crucial for favorable prognosis.
- Left anterior descending (LAD) artery disease is a common presentation of coronary artery disease.
Purpose:
- To prospectively evaluate the benefits of secondary angioplasty on regional and global LV function in patients with single-vessel LAD disease after MI.
- To assess the impact of angioplasty on infarct-related artery patency and stenosis.
- To compare outcomes between patients undergoing angioplasty and those receiving conventional treatment.
Summary:
- Forty patients (Group I) underwent LAD angioplasty 9 days post-MI; 12 patients (Group II) did not.
- Angioplasty significantly improved arterial patency (TIMI Grades II/III) and reduced stenosis (54.7% vs. 80.6%) at 3 months.
- Group I showed significant improvements in ejection fraction (+4.7%), LAD regional wall motion (+7.6), and LV end-systolic volume (-2.2 ml/m²).
Impact:
- Secondary angioplasty of the LAD artery improves myocardial perfusion and LV function post-MI.
- The study demonstrates a clear benefit of revascularization in preserving and improving cardiac function.
- These findings support timely angioplasty for LAD disease to enhance recovery and outcomes after myocardial infarction.
Abstract:
Arterial patency is a good prognostic factor in terms of survival and left ventricular function after myocardial infarction. The aim of this prospective study was to evaluate the benefit of secondary angioplasty of the infarct-related artery in single vessel, left anterior descending disease, on regional and global left ventricular function. Initial coronary angiography was undertaken at the 7th +/- 2 days after the onset of infarction. Arterial patency was assessed by the TIMI criteria and by percentage stenosis on quantitative angiography. Forty consecutive patients (Group I) underwent conventional angioplasty of the left anterior descending artery at the 9th +/- 2 days. Twelve consecutive patients (Group II) did not undergo angioplasty. A repeat coronary angiographic study was performed at 3 months. The results showed no difference between the two groups of patients in base line values. A significant improvement in arterial patency was observed in Group I (TIMI Grades II or III) and in residual stenosis at 3 months (54.7 +/- 13% versus 80.6 +/- 13%, p < 0.05). In addition, a significant improvement in ejection fraction of +4.7% (p < 0.02), of left anterior descending myocardial regional wall motion of +7.6 (p < 0.02) and a reduction of induced left ventricular end systolic volume of -2.2 ml/m2 (p < 0.05) were observed in Group I. Initial segmental hypokinesia or akinesia improved in 67.5% of patients. However, 50% of patients in Group II improved their segmental wall motion abnormalities at 3 months.(ABSTRACT TRUNCATED AT 250 WORDS)