Magnetic sphincter augmentation (MSA) is an innovative surgical approach designed to reinforce the lower oesophageal sphincter (LES) in patients suffering from gastroesophageal reflux disease (GERD).
Your lower esophageal sphincter (LES) is a muscular ring that connects your esophagus with your stomach. It relaxes to let food pass through but otherwise stays closed to prevent stomach acid from ...
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