Di Donato M, Toso A, Maioli M, Sabatier M, Stanley AW, Dor V. Intermediate survival and predictors of death after surgical ventricular restoration.
Semin Thorac Cardiovasc Surg 2001;
13:468-75. [PMID:
11807742 DOI:
10.1053/stcs.2001.29972]
[Citation(s) in RCA: 84] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
This study examined the effects of Dor procedure on long-term survival in patients with previous transmural anterior myocardial infarction who were referred to a single experienced center for left ventricular reconstruction by endoventricular patch-plasty repair. Our aim was to evaluate the impact of this procedure on long-term survival and to assess the ability of preoperative, perioperative, and postoperative variables to predict late survival. Major indications for surgery were left ventricular dysfunction, angina, ventricular arrhythmias, or a combination of the three; 20 patients underwent urgent cardiac surgery. The total group was 245 patients, with 8.1% hospital mortality, and 19 patients lost to follow-up [corrected]. The study group comprised 207 patients. Many pre- and postoperative clinical, hemodynamic, and functional variables, as well as operative parameters, were studied by univariate analysis. During a mean follow-up period of 39+/-19 months, 30 end points were observed, including 27 deaths and 3 heart transplants. Event-free survival was 98%+/-1% at 1 year, 95.8%+/-1.4% at 2 years, and 82.1%+/-3.3% at 5 years. Cox regression analysis showed preoperative New York Heart Association functional class, ejection fraction, end systolic volume index, and remote asynergy as independent predictors of mortality. The procedure has a favorable impact on 5-year survival. Independent predictors of late survival are the preoperative functional status and the left ventricular systolic function.
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