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The management of stable angina
M Petticrew1, M Turner-Boutle, T Sheldon
1NHS Centre for Reviews and Dissemination, York University, UK.
The Health Service Journal
|October 3, 1997
Summary
Medical treatments are effective for less severe angina, while invasive procedures like CABG are better for higher-risk patients. Long-term aspirin and cholesterol therapy improve outcomes after invasive procedures.
Area of Science:
- Cardiology
- Clinical Medicine
- Health Services Research
Background:
- Chronic stable angina symptoms signal increased risk of heart attack and death.
- Current treatment strategies vary in effectiveness based on patient risk stratification.
Purpose of the Study:
- To evaluate the comparative effectiveness of medical versus invasive treatments for chronic stable angina.
- To assess the role of adjunctive therapies and identify needs for evidence-based guidance and equitable access.
Main Methods:
- Review of existing evidence on medical treatments (pharmacotherapy) for angina.
- Analysis of outcomes for invasive revascularisation procedures, including coronary artery bypass grafting (CABG) and angioplasty.
- Evaluation of adjunctive therapies like aspirin and cholesterol-lowering medication.
Main Results:
- Medical treatments are as effective as invasive options for less severe angina, with better survival rates.
- Coronary artery bypass grafting (CABG) shows slightly better efficacy than angioplasty, which often requires re-treatment.
- Long-term low-dose aspirin and cholesterol-lowering therapy reduce recurrence and coronary events post-intervention.
- No clear cost-effectiveness advantage for intracoronary stents over standard angioplasty.
Conclusions:
- Treatment decisions for chronic stable angina should be risk-stratified, favoring medical management for lower-risk patients and revascularisation for higher-risk individuals.
- Adjunctive long-term therapies are crucial for improving outcomes after invasive procedures.
- Evidence-based guidance is needed for referral thresholds, and disparities in access to care based on gender, ethnicity, and social class require monitoring and intervention to promote equity.