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THE JOURNAL OF CARDIOVASCULAR SURGERY
Rivista di Chirurgia Cardiaca, Vascolare e Toracica
Indexed/Abstracted in: BIOSIS Previews, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
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ORIGINAL ARTICLES CARDIAC PAPERS
The Journal of Cardiovascular Surgery 1998 Aprile;39(2):209-15
Early and late results after surgical therapy of postinfarction left ventricular aneurysm
Pasini S., Gagliardotto G., Punta G., Del Ponte S., Serra M., Parisi F., Ottino G., Di Summa M.
From the Department of Cardiac Surgery, University of Turin, Italy
From 1979 to 1993, 139 patients had reduction of left ventricular aneurysm (LVA) by plication (PL) (25 cases) linear repair (74 cases) or ventricular reconstruction (VR) (40 cases). Coronary bypass grafting was performed in 89 patients. We retrospectively reviewed our experience in order to identify predictore of early and late outcome and determine whether ventricular reconstruction (VR) can improve postoperative and late prognosis. Operative mortality (OM) was 7.2%. Among 129 hospital survivors, 48 died during FU (LM). OM was related to a more recent myocardial infarction (p=0.0001), a higher residual score (RS) (p=0.02), a lower EF (p=0.038), a higher left ventricular score (p=0.059), a three-system disease (TSD) (p=0.09) and a right coronary disease (RCD) (p=0.13). At Multivariate Analysis (Stepwise Logistic Regression) TSD (p=0.00l), RCD (p=0.008) and RS (p=0.04) are independent risk factors. Actuarial survival rate at 15 years is 33.5±6.9% (OM included). According to the comparison of the Actuarial Curves (Tests of Mantel and Breslow, OM excluded) the most significant risk factors were: non use of left internal mammary artery (LIMA) (p=0.004), VR (p=0.0l), TSD (p=0.03) and higher NYHA class (p=0.019). Multivariate Analysis (Co Model) confirms that late prognosis is influenced by non use of LIMA (p=0.03) and TSD (p=0.04); outcome is also affected by preoperative arryhthmias (p=0.022). Five-year survival after VR is 87.5±5.7% vs 64.9±5.5% after simple linear closure or PL (p=0.1075 and p=0.2252). Our results confirm that OM and LM are influenced by extent of myocardial ischemic damage; in agreement with the majority of Authors we advocate a complete revascularization using IMA, when appropriate, on left anterior descending artery. Our limited experience with VR fails to demonstrate this technique as an independent factor of late survival.