Treatment of Chronic Stable Angina

Immediate Antianginal and Cardiovascular Protection

The European Society of Cardiology recommends beta-blockers as the cornerstone of treatment for chronic stable angina, with metoprolol 50-100 mg twice daily or atenolol 50-100 mg daily as preferred cardioselective options 1, 2, 3
Beta-blockers reduce cardiac events and mortality, particularly beneficial in patients with diabetes who derive equal or greater benefit than non-diabetic patients 2
Optimize the dose of beta-blocker before adding additional antianginal agents 1
Aspirin 75-150 mg daily is mandatory for all patients with established coronary artery disease to prevent cardiovascular events 2, 3, 4
Clopidogrel 75 mg daily serves as an alternative only if aspirin is not tolerated 2, 3
Sublingual nitroglycerin 0.4 mg should be prescribed for immediate relief of angina episodes, with instructions to take up to 3 doses at 5-minute intervals 3
Short-acting nitrates provide acute symptomatic relief when tolerated 1

High-intensity statin therapy is essential, with atorvastatin 40-80 mg daily or rosuvastatin 20-40 mg daily 2, 3, 4
Target LDL cholesterol <70 mg/dL given this patient's established coronary artery disease 3, 4
Consider adding ezetimibe if LDL goals are not achieved with maximum tolerated statin dose 3
Monitor lipid profile at 4-6 weeks after initiating therapy 3
ACE inhibitors provide vascular protection beyond blood pressure control in patients with diabetes and coronary artery disease 1, 2, 3
Ramipril 10 mg daily or perindopril 8 mg daily are evidence-based choices 2, 3
The American Heart Association recommends targeting blood pressure <130/80 mmHg due to the presence of diabetes and coronary artery disease 3, 4
Beta-blockers serve dual purposes for both angina and hypertension control 1, 3

Metformin is first-line therapy, starting at 500 mg daily and gradually increasing to 1000 mg twice daily as tolerated 3
Target HbA1c <7% considering the patient's age and comorbidities 3
Strict diabetic control is strongly advised as it may modify cardiovascular risk 1

Monitor blood pressure every 2-4 weeks until target is reached 3
Evaluate angina symptoms at each visit and adjust anti-ischemic medication as needed 3
Assess adherence to treatment at each visit, as it is crucial for therapeutic success 3
Monitor renal function and electrolytes periodically with ACE inhibitor therapy 3, 4
Consider stress testing to evaluate the severity of coronary artery disease and effectiveness of anti-ischemic treatment 3
Coronary angiography should be undertaken if symptoms are not satisfactorily controlled by medical means, with a view to revascularization 1

Do not withhold beta-blockers in diabetic patients - diabetes is not a contraindication and these patients benefit significantly 2
Do not use dipyridamole as an antiplatelet agent, as it can enhance exercise-induced myocardial ischemia in stable angina 2
Do not use immediate-release or short-acting dihydropyridine calcium antagonists, as they increase adverse cardiac events 2
Ensure proton pump inhibitor therapy if the patient is at high risk of gastrointestinal bleeding with aspirin 3