Roemheld syndrome is most commonly linked to excess gas or bloating in the gastrointestinal tract , often from conditions like acid reflux, hiatal hernia, or indigestion that can irritate the vagus nerve and trigger heart- like symptoms.

What drives it

  • Abdominal distension puts pressure on the diaphragm and nearby structures.
  • That pressure and irritation can affect the heart’s rhythm or sensations through vagal nerve pathways.
  • Common triggers include overeating, gas-producing foods, swallowing air, GERD, and hiatal hernia.

In plain terms

The “primary cause” is usually gas buildup or stomach distension , not a primary heart disease. In many reports, Roemheld syndrome is described as a gut-related problem that produces chest discomfort or palpitations.

Why this matters

Because the symptoms can feel cardiac, it’s important not to assume they are harmless. Chest pain, fainting, or persistent palpitations should be medically evaluated, since other causes can be serious even when Roemheld syndrome is suspected.

TL;DR: The main cause is typically excess gastrointestinal gas/distension , often related to reflux, hiatal hernia, or other digestive issues, which then affects heart symptoms through pressure and nerve irritation.