[Percutaneous coronary interventions in patients with acute myocardial infarction after unsuccessful thrombolysis]
Insights
For acute myocardial infarction patients with unsuccessful thrombolytic therapy, urgent percutaneous coronary intervention (PCI) within 24 hours or later is effective. Late PCI significantly reduces complications and prevents fatalities, offering a vital treatment alternative.
Area of Science:
- Cardiology
- Interventional Cardiology
- Emergency Medicine
Context:
- Acute myocardial infarction (AMI) management requires timely reperfusion.
- Thrombolytic therapy (TLT) is a primary treatment, but its success is not universal.
- Assessing treatment efficacy after failed TLT is crucial for patient outcomes.
Purpose:
- To compare the efficacy of three treatment strategies following unsuccessful thrombolytic therapy in acute myocardial infarction patients.
- To identify optimal timing for percutaneous coronary intervention (PCI) after failed TLT.
- To evaluate the impact of different treatment approaches on complication rates and mortality.
Summary:
- A study of 176 acute myocardial infarction patients compared immediate PCI (within 24 hours), delayed PCI (days 2-3), and conservative treatment after failed TLT.
- Absence of 50% ST-segment elevation reduction within 90 minutes of TLT indicates a need for urgent late PCI.
- Both immediate and delayed PCI strategies were found to be effective, comparable to rescue PCI, reducing complications and preventing deaths.
Impact:
- Delayed PCI after failed TLT is an effective reperfusion strategy, comparable to immediate PCI.
- This approach improves outcomes by reducing complications and preventing lethal outcomes in acute myocardial infarction.
- Findings support the active use of late urgent PCI, especially for patients transferred from other hospitals.
Abstract:
In 176 patients with acute myocardial infarction admitted to N.V. Sklifosofsky institute of urgent aid in 2003-20007 we compared efficacy of 3 strategies of treatment after unsuccessful thrombolytic therapy (TLT): percutaneous coronary intervention (PCI) during first 24 hours (n = 30), PCI on days 2 or 3 (n = 38); conservative treatment (n = 108). The data obtained show that it is expedient to consider absence of 50% reduction of STAsegment elevations in 90 min after start of TLT as indication to urgent late PCI when possibilities for immediate intervention after unsuccessful thrombolysis are lacking. Alternative reperfusion is the only type of effective treatment of patients with failed pharmacological reperfusion. Necessity to perform PCI during first 12 hours after unsuccessful TLT does not exclude possibility of its later fulfillment in acute period of myocardial infarction. Efficacy of the latter is comparable with success rate of rescue PCI. The use of both invasive strategies has allowed to lessen rate of complications and prevent lethal outcomes. Success of late urgent interventions in acute period of infarction after failed thrombolysis opens possibilities for their active use in patients transferred from other hospitals.
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