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  • Title: Percutaneous reperfusion of left main coronary disease complicated by acute myocardial infarction.
    Author: Neri R, Migliorini A, Moschi G, Valenti R, Dovellini EV, Antoniucci D.
    Journal: Catheter Cardiovasc Interv; 2002 May; 56(1):31-4. PubMed ID: 11979530.
    Abstract:
    Previous studies have shown a benefit of a strategy of direct angioplasty and stenting in patients with acute myocardial infarction (AMI) complicated by early cardiogenic shock. However, few data exist for the subset of patients with left main trunk disease complicated by AMI and cardiogenic shock. We performed an analysis of patients with AMI who underwent mechanical intervention between January 1995 and December 2000. Out of 1,433 patients with ST segment elevation AMI treated with primary coronary angioplasty (PTCA), 22 patients (1.5%) had left main disease (LMD) as the culprit lesion. Baseline characteristics were age, 66 +/- 11 years; female gender, 9%; diabetes, 14%; previous myocardial infarction, 14%; mean systolic blood pressure, 77 +/- 24 mm Hg; time to treatment, 4.8 +/- 2.2 hr; TIMI 0-1, 77%; collateral flow (Rentrop grade >or= 2) 9%. The primary success rate was 91%. Primary stenting was performed in 17 patients (77%). The in-hospital mortality rate was 50%. All deaths were due to refractory shock. The 6-month survival rate was 41% +/- 1%, while the event-free survival rate was 27% +/- 10%. At 6-month follow-up, the mortality rate increased to 59%; the target vessel revascularization rate was 14%. A percutaneous mechanical intervention strategy in patients with left main disease complicated by AMI is feasible and effective, and patients discharged alive have a good mid-term prognosis.
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