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In AMI patients with impaired coronary perfusion undergoing PCI, the risk of TN and SMO increases with the duration of the ischemic time.

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DE during p-PCI occurs more often in the presence of high thrombus burden lesion. It reduces the effectiveness of myocardial reperfusion within 6 h and enhances myocardial damage within 3 h after symptom onset. Afterwards, it does not affect myocardial reperfusion or the extent of myocardial damage.

Despite LV dysfunction, aortic valve replacement appears to change drastically the natural history of severe aortic stenosis. Preoperative LV levels predict different postoperative survival rate and LVEF recovery.

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Retrospective data regarding 290 patients suffering from spontaneous aortic dissection between January 1976 and June 1987 are reported. Dissection was always documented by retrograde aortography and data were collected from 11 catheterization laboratories operating in North-East Italy. The results show that over a 12-year period there was an increase in cases, an increase in the number of operations and a decline in operative mortality. Multivariate discriminant analysis demonstrated that acute myocardial infarction, persistent shock and persistent central neurologic deficit were significant independent predictors of operative mortality in type A patients. Only persistent shock was significantly related to higher operative mortality in type B patients. Late deaths occurred in 14/118 operated patients, and were mostly secondary (directly or indirectly) to aortic dissection. Discharged patients underwent frequent medical checks and chronically received drugs to control hypertension and reduce inotropism. Most of them (73.7%) were asymptomatic: careful post-operative medical assistance is necessary to guarantee the long-term success of surgical treatment.