Definition
Cardiospasm, also known as achalasia, is a rare disorder where the lower esophageal sphincter (LES) fails to relax properly. The LES is a muscular ring that allows food to pass from the esophagus into the stomach. In cardiospasm, this ring remains tight, preventing food from entering the stomach easily. It's like a gate that won't open. This causes difficulty swallowing (dysphagia), regurgitation, and chest pain. It's a chronic condition that requires medical management to relieve symptoms and improve quality of life.