Pharmacoinvasive management of acute coronary syndrome: incorporating the 2007 ACC/AHA guidelines: the CATH (cardiac catheterization and antithrombotic therapy in the hospital) Clinical Consensus Panel Report—III

Marc Cohen, Jos E Diez, Glenn N Levine, James J Ferguson, David A Morrow, Sunil V Rao, James P Zidar
Journal of Invasive Cardiology 2007, 19 (12): 525-38; quiz 539-40
This paper provides a comprehensive up-to-date review of the medical and invasive management of patients with non-ST-segment elevation acute coronary syndromes (NSTE-ACS), and ST-elevation myocardial infarction (STEMI), as supported by recent updates to the ACC/AHA Guidelines. The authors have summarized findings from key clinical trials published in recent years that contribute to clinician's understanding of how best to optimize therapy. The goals for the management of NSTE-ACS and STEMI are rapid and accurate risk stratification, appropriate and institution-specific triage to interventional versus medical strategies and optimal pharmacologic therapy - all of which provide for a smooth and seamless transition of care between the emergency department and the cardiology service. High-risk features or absolute treatment trigger criteria that support more aggressive medical therapy (i.e., addition of a small molecule gylcoprotein [GP] IIb/IIIa inhibitor to a core regimen of aspirin, enoxaparin or other anticoagulants, and in most cases, clopidogrel) and/or that would direct clinicians toward percutaneous interventional strategies as the preferred modality include, but are not limited to the presence of one or more of the following: 1) elevatedcardiac markers (troponin and/or CK-MB); 2) age older than 65 years; 3) presence of ST-T-wave changes; 4) TIMI Risk Score >/= 5; 5) clinical instability in the setting of suspected NSTE-ACS. Although additional refinements and changes in ACS management are still to come, evidence-based strategies suggest that prompt mechanical revascularization is associated with the best possible clinical outcomes, particularly for patients with high-risk features and in whom benefits of adjunctive, pharmacoinvasive antithrombotic therapies can be consolidated. Transfer for cardiac catheterization/percutaneous coronary intervention (PCI) is strongly recommended in patients who manifest high-risk features and/or aggressive treatment trigger criteria, so that this high-risk subgroup may receive definitive, interventional and/or cardiology-directed specialty care at appropriate sites of care. When available, interventional management is preferred in these patients. The importance of safe and effective anticoagulation in the spectrum of management strategies has been confirmed, and the evidence in support of enoxaparin and other antithrombotic agents has been reviewed. Dosing recommendations for enoxaparin use in the setting of PCI have been issued by the CATH Panel and have been summarized in this consensus report. Similar recommendations have been presented for the use of oral antiplatelet agents and GP IIb/IIIa antagonists. The addition of statins, angiotensin-converting enzyme (ACE) inhibitors and beta-blockers is also stressed as part of a comprehensive secondary cardioprotective strategy for patients with coronary heart disease.

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