CHEST PAIN

Chest Pain – Clinical 

Chest pain is one of the most common and potentially serious symptoms encountered in clinical practice. It ranges from benign musculoskeletal discomfort to life-threatening cardiovascular emergencies. Because the chest houses vital organs such as the heart, lungs, major blood vessels, and esophagus, accurate and timely evaluation of chest pain is essential.

Definition

Chest pain refers to any discomfort, pressure, tightness, burning, or aching sensation felt in the chest region, typically between the neck and upper abdomen. It may radiate to the arms, neck, jaw, back, or upper abdomen. The nature, duration, and associated symptoms often provide important clues to the underlying cause.

Major Causes of Chest Pain

Chest pain can broadly be classified into cardiac and non-cardiac causes.

1. Cardiac Causes

Cardiac causes are the most concerning due to their life-threatening potential.

• Angina Pectoris
  Caused by myocardial ischemia due to reduced coronary blood flow. It typically presents as pressure-like or squeezing pain triggered by exertion and relieved by rest or nitrates.

• Acute Myocardial Infarction (Heart Attack)
  Occurs due to complete blockage of a coronary artery. Pain is severe, persistent, crushing, and may be associated with sweating, nausea, breathlessness, and anxiety.

• Pericarditis
  Inflammation of the pericardium. Pain is sharp and worsens with deep breathing or lying flat but improves when sitting forward.

• Aortic Dissection
  A tear in the inner layer of the aorta, causing sudden, severe, tearing chest pain radiating to the back. It is a medical emergency.

2. Pulmonary Causes

• Pulmonary Embolism
  Sudden blockage in a pulmonary artery. Pain is sharp and associated with shortness of breath, rapid heart rate, and sometimes coughing blood.

• Pneumonia
  Infection of lung tissue causing pleuritic chest pain, fever, and cough.

• Pneumothorax
  Collapse of a lung due to air in the pleural space. Sudden sharp pain and breathlessness are typical.

3. Gastrointestinal Causes

• Gastroesophageal Reflux Disease (GERD)
  Burning chest pain (heartburn) often after meals or when lying down.

• Esophageal Spasm
  Can mimic angina; pain may occur with swallowing.

• Peptic Ulcer Disease or Gallbladder Disease
  Pain may radiate to the chest.

4. Musculoskeletal Causes

• Costochondritis
  Inflammation of costochondral joints causing localized chest wall tenderness.

• Muscle Strain or Trauma
  Pain worsens with movement or palpation.

5. Psychological Causes

• Anxiety and Panic Disorders
  May cause chest tightness, palpitations, and shortness of breath, often mimicking heart disease.

Characteristics of Chest Pain

Evaluating chest pain involves understanding several key features:

• Location – Central, left-sided, or localized.

• Radiation – To arm, jaw, back.

• Quality – Sharp, dull, burning, squeezing.

• Duration – Seconds, minutes, hours.

• Triggers – Exercise, stress, meals, breathing.

• Relieving factors – Rest, nitrates, antacids.

• Associated symptoms – Sweating, nausea, dizziness, breathlessness.

Cardiac chest pain is typically pressure-like and related to exertion. Non-cardiac pain is often sharp, localized, and affected by movement or respiration.

Diagnostic Evaluation

Prompt evaluation is critical, especially in emergency settings.

1. Clinical History and Physical Examination

A detailed history helps differentiate between cardiac and non-cardiac causes.

2. Electrocardiogram (ECG)

Identifies ischemia, arrhythmias, or myocardial infarction.

3. Blood Tests

Cardiac biomarkers such as troponins help diagnose myocardial infarction.

4. Chest X-ray

Evaluates lungs, heart size, and major vessels.

5. Echocardiography

Assesses cardiac structure and function.

6. CT Scan or Coronary Angiography

Used when pulmonary embolism, aortic dissection, or coronary artery disease is suspected.

Emergency Warning Signs

Immediate medical attention is required if chest pain is:

• Severe and crushing

• Associated with sweating or nausea

• Radiating to arm or jaw

• Accompanied by breathlessness

• Occurring in individuals with risk factors like diabetes, hypertension, smoking, or previous heart disease

Risk Factors for Cardiac Chest Pain

• Hypertension

• Diabetes mellitus

• Smoking

• Hyperlipidemia

• Obesity

• Sedentary lifestyle

• Family history of heart disease

Management

Management depends on the underlying cause.

• Acute coronary syndrome requires oxygen, antiplatelet drugs, anticoagulants, nitrates, and possible emergency angioplasty.

• GERD is treated with proton pump inhibitors and lifestyle modifications.

• Musculoskeletal pain responds to rest and analgesics.

• Pulmonary embolism requires anticoagulation.

• Anxiety-related pain benefits from reassurance and therapy.

Prevention

• Regular exercise

• Balanced diet low in saturated fats

• Smoking cessation

• Blood pressure and diabetes control

• Stress management

• Routine medical checkups

Conclusion

Chest pain is a symptom that must never be ignored. While many causes are benign, some are life-threatening and require urgent treatment. Careful history-taking, physical examination, and appropriate investigations are essential for accurate diagnosis. Early recognition and prompt management significantly improve outcomes, especially in cardiac emergencies. Understanding the diverse causes of chest pain helps clinicians and patients alike respond appropriately and reduce morbidity and mortality.