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  • Title: Rescue percutaneous coronary intervention for failed thrombolysis.
    Author: Shavelle DM, Salami A, Abdelkarim M, French WJ, Shook TL, Mayeda GS, Burstein S, Matthews RV.
    Journal: Catheter Cardiovasc Interv; 2006 Feb; 67(2):214-20. PubMed ID: 16408298.
    Abstract:
    BACKGROUND: Previous studies of rescue percutaneous coronary intervention (PCI) for failed thrombolysis yielded conflicting results. In the current era of newer thrombolytic agents, coronary stents, glycoprotein IIb/IIIa inhibitors, and aggressive hemodynamic support, the outcome of this high-risk patient group has not been characterized. METHODS: From January 2000 to October 2004, 214 consecutive patients were transferred and underwent emergent coronary angiography following failed thrombolysis. One hundred and fifty five (72%) underwent immediate PCI, 23 (11%) underwent delayed PCI, and 36 (17%) received surgical revascularization or medical therapy. Medical records and angiograms for the entire PCI cohort (n=178) were reviewed for in-hospital events including bleeding complications, stroke, recurrent ischemia or myocardial infarction (MI), target vessel revascularization (TVR), and death. RESULTS: Time from symptom onset to thrombolysis (mean +/- standard deviation) was 5.6 +/- 11.9 hr, and time from thrombolysis to angiography was 7.0 +/- 5.5 hr. The study cohort was critically ill, with 9.6% experiencing cardiac arrest, 21% in cardiogenic shock, and 12% intubated prior to transfer. Coronary stents were placed in 88%, Rheolytic thrombectomy was used in 21%, an intraaortic balloon pump was placed in 17%, and a glycoprotein IIb/IIIa inhibitor was administered in 92%. Patients receiving delayed PCI had higher TIMI 3 flow grade at initial angiography than those receiving immediate PCI (83% vs. 34%, respectively, P < 0.0001). Angiographic success was 90% for the entire PCI cohort, 89% for the immediate PCI group, and 100% for the delayed PCI group. Clinical success (angiographic success and freedom from major adverse cardiac events) was 85% for the entire PCI cohort, 83% for the immediate PCI group, and 100% for the delayed PCI group. Severe and moderate bleeding complications occurred in 7.3%, stroke in 1.7%, recurrent ischemia or MI in 7.3%, and TVR in 3.4%. Overall, in-hospital mortality for the entire PCI cohort was 3.4%. CONCLUSIONS: This observational, consecutive, real-world study of contemporary rescue PCI for failed thrombolysis shows a high use of coronary stents, Rheolytic thrombectomy, glycoprotein IIb/IIIa inhibitors, and intraaortic balloon pump placement. Angiographic and clinical success was high with low bleeding complications and low in-hospital mortality, suggesting that prospective, randomized trials using contemporary interventional therapy for rescue PCI be considered.
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