Guideline adjudicated fibrinolytic failure: Incidence, findings, and management in a contemporary clinical trial

被引:4
作者
Buller, Christopher E. [1 ]
Welsh, Robert C. [2 ]
Westerhout, Cynthia M. [2 ]
Webb, John G. [1 ]
O'Neill, Blair [3 ]
Gallo, Richard [4 ]
Armstrong, Paul W. [2 ]
机构
[1] Univ British Columbia, Vancouver Gen Hosp, Vancouver, BC V5Z 1M9, Canada
[2] Univ Alberta, Canadian VIGOUR Ctr, Edmonton, AB, Canada
[3] Dalhousie Univ, Queen Elizabeth II Hlth Sci Ctr, Halifax, NS, Canada
[4] Univ Montreal, Inst Cardiol Montreal, Montreal, PQ, Canada
关键词
D O I
10.1016/j.ahj.2007.08.027
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Background Rescue percutaneous coronary intervention (PCI) is efficacious after clinical failure of fibrinolytic therapy and is recommended for those with persistent ischemia, hemodynamic, or electrical instability. We sought to describe the frequency of fibrinolytic failure (rescue eligibility) as well as the patient characteristics associated with rescue eligibility, rescue referral, and PCI. Methods and Results Eligibility, indication, and referral for guideline-based rescue PCI were adjudicated in 22 1 patients enrolled in the WEST trial. WEST treated patients at earliest medical contact and used a tenectaplase/enoxaparin regimen. Ninety patients (41%) were adjudicated with acute myocardial infarction as rescue eligible of whom 68 were referred for rescue PCI. Baseline characteristics did not predict rescue eligibility or referral. Emergency angiography before PCI performed a median of 82 minutes (interquartile range 50-99) after rescue referral showed TIMI flow grade 2 or 3 in 34 (50%). Percutoneous coronary intervention was adjudicated as successful in 58 of 60 attempts. Procedures began approximately 45 minutes sooner in patients initially admitted to PCI-capable hospitals. Compared to those with clinically successful fibrinolytic therapy, rescue eligible patients demonstrated higher median peak creatine phosphokinase (1889 [1243-3746] vs 999 [440-2048], P <.0 1) and 30-day median NT-proBNP levels (748 [391-1916] vs 431 [153-1016], P <.0 1). Conclusions Rescue eligibility determined by guideline criteria is common after contemporary fibrinolysis and is not predicted by conventional baseline characteristics. Half of rescue-referred patients are patent at angiography: although contemporary PCI success rates are high, rescue eligibility is associated with larger infarctions.
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页码:121 / 127
页数:7
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