Key result
Immediate post-thrombolysis PCI within 1.9 to 2.7 hours challenges broader ESC guidelines for stable STEMI.
Why the study?
There is uncertainty regarding the optimal timing of PCI in post thrombolysis stable STEMI patients, with ESC guidelines recommending PCI within 3 to 24 hours but evidence suggesting earlier intervention.
Does immediate post thrombolysis PCI (within 1.9 to 2.7 hours) improve outcomes compared to delayed PCI (3 to 24 hours) in stable STEMI patients?
Does immediate post thrombolysis PCI (within 1.9 to 2.7 hours) improve outcomes compared to delayed PCI (3 to 24 hours) in stable STEMI patients?
Evidence from multiple trials suggests that immediate post-thrombolysis PCI (within 1.9 to 2.7 hours) may be preferable, challenging current ESC guidelines that recommend a 3 to 24-hour window.
May justify earlier post-thrombolysis PCI in stable STEMI; challenges ESC 3-24h window and supports guideline revision.
ST elevation myocardial infarction (STEMI) occupies a significant portion of the cardiovascular disease spectrum and poses a continuing challenge on the health care delivery system worldwide. A dilemma exists in the clinical triage system for appropriate strategic modalities of treatment, based on underlying triad of patient-hospital-cardiac pathological factors as well as cut off timelines. Current European Society of Cardiology (ESC) guideline recommends percutaneous coronary intervention (PCI) within 3 to 24 hours in post thrombolysis stable patients. This review critically evaluated the evidences underlying the ESC recommendation. Trials included in this review are SIAM III, GRACIA 1, CAPITAL-AMI, CARESS-IN-AMI, NORDISTEMI, PRAGUE-1, WEST and LEIPZIG. Most of the evidences support the notion for immediate post thrombolysis PCI in stable patients within 1.9 to 2.7 hours, which contradicts the ESC timeline of up to 24 hours. Also, there is a reduced generalizability of the trial results due to differences in the design of the various trials, study population, composite endpoints, variations in drug dose & formulation, co-administration of pharmacotherapies and type of stents used. This warrants further research for standardization & optimization of the treatment protocol with respect to post thrombolysis PCI in stable STEMI patients.
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Hasan et al. (2015) conducted a review in ST elevation myocardial infarction (STEMI). Immediate post-thrombolysis percutaneous coronary intervention (PCI) vs. Watchful waiting or ischemia-guided conservative management was evaluated on Composite of mortality, reinfarction, and recurrent ischemia. Immediate post-thrombolysis percutaneous coronary intervention performed within 1.9 to 2.7 hours in stable STEMI patients is supported by most trial evidence, challenging the broader 3 to 24-hour timeline recommended by ESC guidelines.
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