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Rescue coronary angioplasty: a crotch for limping thrombolysis?
M Zimarino1, M Di Fulvio, S Gallina
1Dipartimento di Cardiologia e Cardiochirurgia, Università degli Studi, Chieti. emosax@yahoo.com
Insights
Rescue coronary angioplasty after failed thrombolysis may improve outcomes. Aggressive management, including electrocardiogram and cardiac biomarker monitoring, is key for identifying suitable patients for this intervention.
Area of Science:
- Cardiology
- Interventional Cardiology
Background:
- Thrombolysis is a primary treatment for acute myocardial infarction.
- Failed thrombolysis necessitates alternative strategies to restore coronary blood flow.
- The efficacy and risks of rescue coronary angioplasty have been historically debated.
Purpose of the Study:
- To evaluate the clinical benefit of rescue coronary angioplasty following failed thrombolysis.
- To identify patient subgroups who may benefit from aggressive post-thrombolysis management.
- To explore strategies for improving the success and reducing complications of rescue angioplasty.
Main Methods:
- Review of clinical trials and angiographic substudies (e.g., RESCUE, GUSTO).
- Emphasis on noninvasive patient identification using electrocardiogram and cardiac biomarkers.
- Consideration of adjunctive therapies like intra-aortic balloon pumps, stents, and antiplatelet agents.
Main Results:
- Evidence suggests improved outcomes with aggressive management after failed thrombolysis.
- Early studies indicated high risks and low success rates for rescue angioplasty.
- Recent data support the benefit of this strategy in selected patients.
Conclusions:
- Rescue coronary angioplasty can be beneficial when reperfusion is not achieved with thrombolysis.
- Noninvasive monitoring is crucial for selecting appropriate candidates.
- Further research, including randomized trials, is needed to optimize adjunctive therapies and confirm benefits.
Abstract:
After failed thrombolysis, rescue coronary angioplasty is performed with the aim of restoring complete flow in the infarct-related artery. The clinical benefit of this strategy has been debated in few clinical trials during the early '90s, and high procedure-related risks, low success and early reocclusion rates seemed to outweigh the benefit of mechanical recanalization. The RESCUE trial and, more recently, data from the GUSTO angiographic substudy supported the hypothesis of a better outcome among patients aggressively managed after failed thrombolysis. Noninvasive identification of such patients must be accomplished monitoring electrocardiogram and biochemical markers of myocardial necrosis. Further improvements in the management of candidates to rescue coronary angioplasty can be obtained with a more liberal use of intra-aortic balloon pump among subjects admitted in cardiogenic shock; stents and platelet aggregation inhibitors could reduce early reocclusion, but randomized data are needed to test this hypothesis.