A case of successful excision of a ventricular aneurysm due to myocardial infarction is presented. The aetiology, incidence, pathogenesis, pathology, clinical features, and diagnosis of the condition are discussed. An account is given of the haemodynamic upset caused by aneurysms of the ventricle. The prognosis of untreated aneurysms is discussed. Although there is difference of opinion, it is concluded that a ventricular aneurysm adversely affects the prognosis after myocardial infarction. The indications for, and the mortality and results of, resection of ventricular aneurysms are discussed. The conclusion is drawn that persistent cardiac failure and angina can be relieved and the risk of systemic embolism reduced by the excision of expansile ventricular aneurysms of a fibrous nature. It is possible that excision may also reduce the incidence of subsequent acute myocardial infarction.
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