Related Experiment Videos
Acute management--how should we intervene?
1Department of Cardiology, Aker University Hospital, Oslo, Norway. fkontny@usa.net
Insights
Early invasive treatment for unstable coronary artery disease (UCAD), including angiography and revascularization, improves outcomes. Aggressive medical pretreatment with low-molecular-weight heparin (LMWH) and aspirin is recommended for patients with ischemia signs.
Area of Science:
- Cardiology
- Clinical Medicine
- Interventional Cardiology
Background:
- The optimal management strategy for unstable coronary artery disease (UCAD) remains a critical clinical question.
- Balancing early intervention versus a noninvasive medical approach requires careful consideration of patient outcomes.
- Existing literature on this topic is limited, necessitating further research.
Purpose of the Study:
- To compare the effectiveness of an early invasive strategy versus a noninvasive strategy in managing patients with UCAD.
- To evaluate the role of low-molecular-weight heparin (LMWH) in conjunction with invasive or noninvasive management.
- To provide evidence-based recommendations for the acute management of UCAD.
Main Methods:
- The Fast Revascularization during InStability in Coronary artery disease (FRISC II) study employed a factorial design.
- Patients were randomized to either an early invasive (within 7 days) or a noninvasive management strategy.
- Treatment arms also included short- or long-term administration of dalteparin sodium (Fragmin), a LMWH.
Main Results:
- An early invasive strategy, initiated within 7 days, demonstrated improved clinical outcomes compared to a "watchful waiting" approach.
- Optimal medical pretreatment, including dalteparin sodium, aspirin, and antianginal medication, was crucial for the success of the invasive strategy.
- Patients presenting with electrocardiogram (ECG) signs of ischemia or elevated cardiac biomarkers benefited significantly from the early invasive approach.
Conclusions:
- An early invasive strategy, preceded by aggressive medical management, is the preferred approach for patients with UCAD presenting with ischemic signs or elevated cardiac biomarkers.
- The combination of early revascularization and optimal medical therapy, including LMWH, leads to superior clinical outcomes.
- This study provides strong evidence supporting an interventional approach in the acute management of selected UCAD patients.
Abstract:
A crucial question in the acute management of the patient with unstable coronary artery disease (UCAD) is whether to carry out early intervention, performing angiography soon after presentation and following this with revascularization where appropriate, or whether to follow a noninvasive medical strategy as far as possible unless symptoms necessitate intervention. The body of literature addressing this question is sparse, but the recent Fast Revascularization during InStability in Coronary artery disease (FRISC II) study has provided new insights into the problem. Using a factorial design to randomize patients to invasive or noninvasive management strategies, and to short- or long-term treatment with the low-molecular-weight heparin (LMWH) dalteparin sodium (Fragmin), it was shown in FRISC II that early invasive treatment (within 7 days), when combined with optimal medical pretreatment with dalteparin sodium, aspirin, and appropriate antianginal medication, is associated with improved clinical outcomes, relative to a "watchful waiting" approach based on noninvasive therapy. Thus, an early invasive approach following aggressive medical pretreatment should be the preferred strategy for patients with UCAD who present with signs of ischemia on the electrocardiogram or raised biochemical markers of myocardial damage at admission.