Management of Mid-Sternal Chest Pain for 2 Weeks

Initial Assessment and Risk Stratification

• The American College of Cardiology recommends obtaining an ECG immediately in the office setting for a patient with mid-sternal chest pain persisting for 2 weeks, and if this cannot be done within 10 minutes or if the ECG shows any ischemic changes, transfer the patient to the emergency department by EMS for cardiac troponin testing and comprehensive evaluation 1
• The European Heart Journal suggests that cardiac causes must still be systematically excluded before considering non-cardiac etiologies in patients with 2-week duration of mid-sternal chest pain 1, 2

Key Historical Features to Obtain

• The European Heart Journal identifies features suggesting cardiac origin, including pain that interrupts normal daily activities, associated cold sweats, nausea, vomiting, or anxiety/fear, radiation pattern typical of angina, and exertional component or relief with rest 2, 3
• The European Heart Journal also identifies features suggesting non-cardiac origin, including pain that varies with respiration, body position, or food intake, well-localized pain on the chest wall, pain reproduced by palpation of the chest wall, breathing, turning, twisting, or bending, and pain generated from multiple sites 2, 3

Immediate Office-Based Actions

• The American College of Cardiology recommends that if an ECG cannot be obtained and interpreted within 10 minutes in the office, the patient should be immediately transferred to the ED by EMS, and personal automobile transport should be avoided 1

Decision Algorithm Based on ECG Findings

• The American College of Cardiology and European Heart Journal recommend immediate EMS transfer to ED for STEMI/NSTE-ACS protocol if ECG shows ST-elevation, new ST depression, or new LBBB 1, 4
• The European Heart Journal suggests administering aspirin 250-500 mg immediately and considering sublingual nitroglycerin if no bradycardia or hypotension is present 2, 3, 4

Probability of Angina

• The European Heart Journal provides the likelihood of angina by age and sex, with men aged 30-39 having a 67% probability, men aged 60-69 having a 94% probability, women aged 30-39 having a 26% probability, and women aged 60-69 having a 90% probability with typical angina symptoms 3

Common Non-Cardiac Causes

• The European Heart Journal states that musculoskeletal pain is the most prevalent diagnosis, accounting for the majority of chest pain cases, with reproducible tenderness on chest wall palpation, pain affected by position, breathing, or movement, and costochondral junction tenderness 2, 3, 6
• The European Heart Journal also considers other non-cardiac causes, including gastroesophageal reflux disease, anxiety or panic disorder, and pericarditis 2, 3, 6

Critical Pitfalls to Avoid

• The American College of Cardiology warns against delaying transfer for troponin testing in the office, as this causes harmful delays in diagnosis and treatment 1
• The European Heart Journal advises against relying on physical examination alone, as it contributes almost nothing to diagnosing myocardial infarction unless shock is present 2, 3
• The European Heart Journal also warns against assuming chronicity equals safety, as stable angina can progress to acute coronary syndrome, and referral to cardiology is indicated when symptoms don't respond to usual pharmacotherapy 3
• The American College of Cardiology and European Heart Journal emphasize the importance of serial ECGs if symptoms persist, and using age and sex to guide the threshold for cardiac workup 1, 2, 3