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[Thrombolysis and myocardial infarct].

F Leisch1

  • 1I. Medizinischen Abteilung, Allgemeinen Krankenhauses der Stadt Linz.

Acta Medica Austriaca
|January 1, 1988
PubMed
Summary

Thrombolytic therapy effectively opens blocked arteries in acute myocardial infarction, reducing mortality and infarct size. Percutaneous coronary intervention (PCI) is successful in most patients post-thrombolysis, improving outcomes.

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Area of Science:

  • Cardiology
  • Interventional Cardiology

Context:

  • Acute myocardial infarction (AMI) treatment involves reperfusion strategies.
  • Thrombolytic therapy aims to restore blood flow in occluded coronary arteries.
  • Significant residual stenosis often persists after successful thrombolysis.

Purpose:

  • To evaluate the efficacy of thrombolytic therapy in AMI.
  • To assess the role and outcomes of percutaneous coronary intervention (PCI) following thrombolysis.
  • To determine the impact of reperfusion timing on patient mortality and infarct size.

Summary:

  • Thrombolytic therapy recanalizes infarct arteries in 35-90% of AMI cases, with success varying by agent and administration route.
  • Successful recanalization correlates with reduced hospital and one-year mortality and smaller infarct size, particularly when initiated early (within 3-4 hours of ischemic pain).
  • Approximately 80-90% of patients have significant residual stenosis post-thrombolysis, making them candidates for PCI, which demonstrates high success rates and low complication incidence, leading to reduced reinfarction and improved left ventricular function.

Impact:

  • Establishes the value of early thrombolysis in AMI for patients with short pain duration.
  • Highlights PCI as an effective strategy for managing residual stenosis after thrombolysis, improving long-term cardiac function.
  • Identifies the need for further research into the optimal timing of PCI post-thrombolysis.

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