History of Chest Pain

1. Character of the Pain

Caution: The Multicenter Chest Pain Study found that 22% of AMI patients described their pain as sharp or stabbing. Classic descriptors are neither sensitive nor specific enough to exclude serious pathology. — Rosen's Emergency Medicine

2. Onset and Duration

• Sudden, maximal onset → aortic dissection (must rule out first), PE, pneumothorax
• Gradual, building over minutes → ACS (AMI pain typically builds over several minutes before reaching maximal intensity)
• Duration:
  • Stable angina: 2–10 minutes, self-terminating with rest
  • Unstable angina: 10–30 minutes, often not relieved by rest
  • AMI: typically >30 minutes, does not resolve with nitroglycerin
  • Pain lasting seconds or constant pain for >24 hours without fluctuation is less typical of ischemia (though does not exclude it)
• NSTE-ACS symptoms are more severe and prolonged, occurring at rest or with minimal exertion — Fuster & Hurst's The Heart

3. Location and Radiation

• Retrosternal / mid-sternal → ischemia (most common), pericarditis, esophageal disease
• Radiation:
  • Left neck, shoulder, and down the ulnar aspect of the left arm → classic angina
  • Right arm radiation → less common but still ischemic
  • Jaw → ischemia; must be distinguished from dental pain
  • Throat tightness → important angina equivalent, warns of coronary obstruction
  • Back → aortic dissection (ascending aortic dissection radiates to the back; descending dissection radiates to the abdomen)
  • Ipsilateral shoulder and neck → diaphragmatic pleurisy (referred pain via phrenic nerve)
  • Mid-epigastric → ischemia (especially inferior MI), GERD, peptic ulcer disease

Epigastric discomfort alone or with chest pressure may represent ischemia. Mid-epigastric burning post-prandially and right upper quadrant discomfort mimicking gallbladder disease are recognized anginal equivalents. — Goldman-Cecil Medicine

4. Provoking and Alleviating Factors

5. Associated Symptoms

• Diaphoresis — strongly associated with AMI; also aortic dissection
• Dyspnea — ischemia, heart failure, PE, pneumothorax, pneumonia
• Nausea/vomiting — inferior MI (increased vagal tone), GI causes
• Palpitations — arrhythmia, PE
• Syncope or pre-syncope — severe AS, PE, aortic dissection, arrhythmia
• Hemoptysis — PE, malignancy, TB
• Cough, fever — pneumonia, pleuritis
• Fatigue — ischemia equivalent, especially in women; also HF
• Neurological symptoms (focal deficit, stroke) — aortic dissection involving the great vessels

6. Past Medical and Cardiovascular History

• Prior coronary artery disease, prior MI, CABG, or stenting
• Prior episodes of similar pain and prior investigations
• History of hypertension, diabetes, hyperlipidemia, smoking, obesity (atherosclerotic risk factors)
• History of aortic aneurysm, Marfan syndrome, collagen vascular disease (dissection risk)
• History of DVT/PE, recent surgery, malignancy, immobilization (PE risk)
• Connective tissue disorders or congenital heart disease

7. Family History

• Premature cardiovascular disease (first-degree relative <55 men / <65 women)
• Sudden unexplained death in young adulthood (especially in pediatric/young adult chest pain)
• Hereditary cardiomyopathy, arrhythmia syndromes

8. Social History

• Smoking — major risk factor for coronary artery disease
• Cocaine or stimulant use — can cause coronary vasoconstriction, vasospasm, thrombosis; consider in any patient <50 with chest pain
• Alcohol use
• Oral contraceptive use (PE risk, especially in adolescent females)
• Pregnancy status
• Occupation and recent travel (PE risk)

9. Key Patterns by Diagnosis

10. The SOCRATES / OPQRST Framework

• Site / Onset
• Onset — sudden vs. gradual, what the patient was doing
• Character / Quality — pressure, burning, sharp, tearing
• Radiation — where does it spread?
• Associated symptoms — dyspnea, nausea, diaphoresis, palpitations, syncope
• Time — duration, frequency, first episode vs. recurrent
• Exacerbating / alleviating factors — exertion, food, posture, respiration, nitrates
• Severity — 0–10 scale

Clinical Pearls

• Any severe, new, or abrupt chest pain warrants rapid assessment and ECG within 10 minutes regardless of character — Tintinalli's
• The absence of classic symptoms does not exclude ACS, particularly in women, elderly patients, diabetics, and racial minorities
• Prinzmetal (vasospastic) angina presents at rest or nocturnally without exertion, and may not have conventional risk factors
• Esophageal and cardiac pain can both radiate to the arm and be relieved by nitrates, making clinical distinction difficult
• Pain that is sharp, well-localized, pleuritic, or reproducible by palpation is less likely to be ischemic — but does not exclude it with certainty