Differential Diagnoses for Intermittent Epigastric Chest Pain Radiating to Back After Exercise

High-Priority Cardiac Differentials

The American College of Cardiology recommends considering cardiac ischemia first in women with exercise-induced epigastric pain radiating to the back, despite their young age and female sex, as women are frequently underdiagnosed and their cardiac symptoms misclassified as noncardiac 1, 2
Exercise as a precipitating factor is a classic trigger for anginal symptoms, according to the American College of Cardiology 3, 4
Women presenting with chest pain are at significant risk for underdiagnosis, and cardiac causes should always be considered first, as stated by the American College of Cardiology and Circulation 1, 2
The epigastric location with back radiation fits the pattern seen in women with acute coronary syndrome, who commonly present with back pain, jaw pain, and epigastric symptoms more frequently than men, according to the American College of Cardiology and Circulation 1, 5
Physician assessments often underestimate risk in women and misclassify their chest pain as nonischemic, which is a critical pitfall, as noted by the American College of Cardiology and Circulation 1, 6

The American College of Radiology states that epigastric pain is a cardinal feature of Gastroesophageal Reflux Disease (GERD) 7
Exercise can precipitate GERD symptoms by increasing intra-abdominal pressure, according to the American College of Radiology 7
Epigastric pain is characteristic of Peptic Ulcer Disease, and back radiation can occur with posterior penetrating ulcers, as noted by the American College of Radiology 7

The American College of Cardiology recommends considering musculoskeletal origin for spasmodic chest pain, but notes that positional chest pain is usually nonischemic 3, 4
Pain should be reproducible with palpation and worsen with specific movements to suggest musculoskeletal origin, as stated by Praxis Medical Insights 8

Back radiation is characteristic of Aortic Dissection, but the intermittent nature and exercise relationship make this unlikely, according to the American College of Cardiology 3, 4
Pulmonary Embolism can cause exertional chest pain, but would typically present with dyspnea, which is absent in this case, as noted by the American College of Cardiology 3

The American College of Cardiology recommends immediate workup to prioritize cardiac evaluation, including a 12-lead ECG within 10 minutes to assess for ischemia or injury patterns, and cardiac biomarkers (troponin) if any suspicion for acute coronary syndrome 8
Exercise stress testing is essential to identify ischemic heart disease and quantify myocardium at risk, given the exercise-related symptoms, as stated by the American College of Cardiology 3, 4
If initial cardiac workup is negative, consider upper endoscopy for GERD/PUD evaluation, and trial of proton pump inhibitor therapy may be diagnostic and therapeutic for GERD, as recommended by the American College of Radiology 7