Many people have wondered why their chest hurts so severely when the heart is healthy. In modern medicine, this tight, squeezing chest pain is called esophageal spasm. An esophageal spasm is a phenomenon in which the esophageal muscles suddenly contract abnormally. Just as a cramp occurs in the calf muscle, the esophageal muscles contract intensely of their own accord. It is mainly classified as an esophageal motility disorder, such as diffuse esophageal spasm or nutcracker esophagus.
This pain is distressing because its presentation closely resembles heart conditions such as angina pectoris or myocardial infarction. The center of the chest may feel as though it is tearing, or a squeezing sensation may occur, potentially accompanied by radiating pain extending to the back or neck. If cardiac tests show no abnormalities, it is very likely an outcry from the esophagus. Why does the esophagus suddenly act up in this manner?
The primary culprits are stress and an imbalance of the autonomic nervous system. The autonomic nervous system regulates involuntary biological functions such as digestion, heartbeat, and breathing. In particular, the vagus nerve governs the motility of the esophageal muscles. When stress is excessive or anxiety mounts, the balance of this vagus nerve is disrupted, sending excessive excitation to the esophageal muscles like an overly sensitive switch.
Hot or cold foods, excessively spicy and salty foods, and eating too quickly also place a burden on the esophagus. Gastroesophageal reflux disease, or GERD, can also irritate the esophageal mucosa, triggering or worsening spasms. For some individuals, symptoms may also appear after taking certain medications.
Esophageal spasm does not just cause pain; it can make swallowing food difficult, a condition known as dysphagia, and can be accompanied by reflux symptoms. Diagnosis is mainly performed using esophageal manometry to analyze the contraction patterns of the esophageal muscles, along with endoscopy and barium studies to rule out other conditions.
Treatment focuses on symptom relief and eliminating underlying causes. During acute pain, medications that relax the esophageal muscles are used. In chronic cases, muscle relaxants or low-dose antidepressants may be considered. In severe cases, botulinum toxin injections may be administered directly into the esophageal muscle, and in rare instances, surgery such as esophageal myotomy may be considered.
What is most important is listening to the signals your body sends and improving daily habits. Just as the communication of qi described in Donguibogam aligns with autonomic nervous system balance in modern medicine, peace of mind and regular lifestyle routines can serve as the most fundamental prescription to calm esophageal spasms.
