Angina: History of Present Illness, Assessment, and Management Plan
History of Present Illness (HPI)
Document angina using a chronological, structured approach that captures the essential diagnostic elements. 1, 2
Key Elements to Obtain:
Symptom Characteristics:
- Quality: Pressure, tightness, heaviness, strangling, constricting, or burning (not sharp or stabbing) 3, 1
- Location: Substernal, radiating to jaw, neck, shoulder, arms, or epigastrium 2, 4
- Duration: Brief episodes lasting 2-10 minutes (not seconds, not hours) 3, 1
- Triggers: Exertion, emotional stress, cold weather, heavy meals, morning hours 3, 1
- Relief: Rest within 1-5 minutes, sublingual nitroglycerin within 30 seconds to several minutes 2, 5
Anginal Pattern Classification:
- Stable: Predictable with exertion, unchanged pattern
- Unstable: New onset, increasing frequency/severity, or occurring at rest (requires emergency evaluation) 2
Anginal Equivalents (especially in elderly and women):
- Isolated exertional dyspnea (most common)
- Jaw, neck, or epigastric discomfort alone
- Unexplained fatigue, nausea, diaphoresis 6, 4
Risk Factors (document presence/absence):
- Age (male >55, female >65 years)
- Smoking (quantify pack-years: 20 in this case)
- Hypertension (present)
- Hyperlipidemia (present)
- Diabetes mellitus
- Family history of premature CAD (male <55, female <65 years)
- Prior MI or known CAD 6, 4
Comorbidities affecting management:
Assessment
Grade angina severity using Canadian Cardiovascular Society (CCS) Classification: 1, 5
- Class I: Angina only with strenuous exertion
- Class II: Slight limitation; angina with moderate exertion (walking >2 blocks, climbing >1 flight of stairs)
- Class III: Marked limitation; angina with mild exertion (walking 1-2 blocks)
- Class IV: Angina at rest
Physical Examination Priorities:
- Blood pressure measurement (assess hypertension control)
- Heart sounds (S3/S4 during ischemia, murmurs suggesting valvular disease)
- Signs of heart failure (elevated JVP, pulmonary rales, peripheral edema)
- Peripheral pulses and bruits (assess for systemic atherosclerosis)
- Chest wall tenderness (makes angina less likely but doesn't exclude it) 2, 5
Initial Diagnostic Testing:
- Resting ECG (mandatory in all patients) 2
- Lipid panel, fasting glucose/HbA1c, creatinine 7, 1
- Stress testing (exercise ECG or imaging) for diagnosis confirmation and risk stratification 3, 1
Management Plan
Pillar 1: Medications to Prevent MI and Death (Mandatory for All)
Start these immediately regardless of symptom severity: 7, 2
Aspirin 75-81 mg daily (or clopidogrel if aspirin contraindicated) 7, 3
High-intensity statin (atorvastatin 40-80 mg or rosuvastatin 20-40 mg) 7, 2
ACE inhibitor (especially with hypertension, diabetes, LV dysfunction, or high-risk features) 7, 8
Beta-blocker (particularly if prior MI or reduced ejection fraction; target resting heart rate 55-60 bpm) 7, 8
Pillar 2: Antianginal Therapy for Symptom Control
Sublingual nitroglycerin 0.4 mg (for immediate symptom relief; educate on use) 7
Beta-blocker (if not already prescribed for prognostic benefit):
If beta-blocker contraindicated or not tolerated: 7, 3
- Long-acting calcium channel blocker:
- Amlodipine 5-10 mg daily OR
- Diltiazem extended-release 180-360 mg daily
- Avoid non-dihydropyridines with beta-blockers (risk of heart block/bradycardia) 8
If symptoms persist on monotherapy: 7, 3
- Add long-acting nitrate (isosorbide mononitrate 30-120 mg daily with nitrate-free interval) OR
- Add long-acting calcium channel blocker to beta-blocker 7
Avoid these therapies (no proven benefit):
Pillar 3: Aggressive Risk Factor Modification
- Smoking cessation (critical with 20 pack-year history) 3, 2
- Blood pressure target <130/80 mmHg 2
- LDL cholesterol <70 mg/dL (consider <55 mg/dL if very high risk) 7
- Weight management and regular exercise 8
- Diabetes control if present (HbA1c <7%) 8
Follow-up and Revascularization Considerations
Optimize medical therapy over 12-16 weeks before considering revascularization (unless high-risk features present). 8
Reassess every 4-6 months in first year, then annually if stable: 7
- Has physical activity decreased?
- Have symptoms worsened despite medication?
- Medication tolerance and adherence?
- Risk factor control achieved?
Consider coronary angiography and revascularization if: 3, 2
- Symptoms remain unacceptable despite optimal medical therapy
- High-risk features on stress testing (extensive ischemia, reduced ejection fraction)
- Left main disease, three-vessel disease, or proximal LAD stenosis with reduced LV function 3
Critical pitfall: Women and elderly patients often present with atypical symptoms (dyspnea, fatigue, epigastric discomfort) rather than classic chest pain—maintain high index of suspicion. 6, 4