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. 1982 Sep;9(3):267–273.

Improved Cardiac Function Following Left Ventricular Aneurysm Resection: Pre- and Postoperative Performance Studies in 150 Patients

David A Ott 1, Roberto Parravacini 1, Denton A Cooley 1, E Gordon Depuey 1, George J Reul 1, J Michael Duncan 1, O Howard Frazier 1, James J Livesay 1
PMCID: PMC351625  PMID: 15226926

Abstract

One hundred fifty patients underwent radionuclide left ventricular performance studies before and one week after resection of a left ventricular aneurysm. The patients were classified according to pre-and postoperative ejection fraction into five classes as follows: Class I > 50%, Class II = 41%-50%, Class III = 31%-40%, Class IV = 21%-30%, and Class V = < 21%. They were also classified into groups according to the size of the aneurysm and wall thickness.

Operative mortality was 4.6% (7/150). One hundred one patients (67%) improved at least one “ejection-fraction class” postoperatively; whereas in a similar group of patients who underwent aortocoronary bypass without left ventricular aneurysm resection, only 42.3% (58/137) improved (p < .01). Preoperatively, ejection fraction was < 40% in 136 patients (90.6%); and postoperatively, it was > 40% in 59 patients (39.3%) (p < .01). Improvement of at least one “ejection-fraction class” occurred in 22 patients (47.8%) with small aneurysms, 54 patients (69.2%) with moderate size aneurysms (p < .05), and 25 patients (96.1%) with large aneurysms (p < .01). Sixty-nine patients (88.4%) with thin-walled aneurysms and 32 patients (44.4%) with thick-walled aneurysms improved (p < .01). Resection of a left ventricular aneurysm improves left ventricular function, particularly in patients with large, thin-walled aneurysms. A less aggressive surgical approach is warranted when dealing with thick-walled akinetic areas as patients with these lesions do not respond well to resection.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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