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Long-term effects of thrombolytic therapy on clinical course and left ventricular function after acute myocardial
Insights
Thrombolytic therapy improves outcomes for acute myocardial infarction patients, especially those achieving reperfusion. This treatment lowers mortality and enhances left ventricular function over one year.
Area of Science:
- Cardiology
- Internal Medicine
Background:
- Acute Myocardial Infarction (AMI) poses significant mortality risks.
- Left ventricular function is a key determinant of prognosis post-AMI.
- Thrombolytic therapy is a critical treatment for AMI aimed at restoring blood flow.
Purpose of the Study:
- To evaluate the one-year clinical course and left ventricular function in AMI patients treated with thrombolysis.
- To assess the impact of successful reperfusion on patient outcomes.
- To identify factors influencing the prognosis of AMI during follow-up.
Main Methods:
- A prospective follow-up study of 65 AMI cases over one year.
- 40 patients received thrombolytic therapy.
- Clinical course assessed using Killip Scale, and left ventricular function by ejection fraction (EF).
Main Results:
- Reperfusion was achieved in 65% of patients receiving thrombolytic therapy.
- The treated group showed improved Killip Scale scores and ejection fraction (EF) at discharge and one year.
- Overall mortality was lower in the treated group, particularly in those with successful reperfusion.
- Male sex, anterior wall, deep Q wave infarctions, low discharge EF, and late cardiac events were associated with adverse outcomes.
Conclusions:
- Thrombolytic therapy improves clinical outcomes and left ventricular function in AMI patients.
- Successful reperfusion significantly enhances the benefits of thrombolytic treatment.
- Several clinical and electrocardiographic factors predict a poorer prognosis in AMI patients.
Abstract:
Sixty five cases of Acute Myocardial Infarction, of which 40 cases received thrombolytic therapy, were followed up for a period of one year for clinical course and left ventricular function. Reperfusion was achieved in 65% cases who received thrombolytic therapy. At discharge and at one year treated group fared well on Killip Scale, and ejection fraction (EF), and the overally mortality was lower. This difference was more significant in the group who achieved reperfusion. Male sex, Anterior wall infarctions, deep Q wave infarctions as also low EF at the time of discharge and late cardiac events had adverse effect on the course of infarction during follow up.