[The lower esophageal sphincter in gastrectomized patients. Manometric study]

Area of Science:

• Gastroenterology
• Physiology

Context:

• Investigating the effects of partial gastric resection on the oesophago-gastric junction.
• Utilizing novel manometric techniques for precise lower oesophageal sphincter (LOS) examination.

Purpose:

• To assess the functional changes in the lower oesophageal sphincter (LOS) after partial gastric resection.
• To evaluate the impact of surgery on LOS pressure, length, and response to stimuli.

Summary:

• Partial gastric resection resulted in a significant decrease in LOS maximum pressure (43.6%) and length (33.3%).
• The pressure response to a protein meal diminished by 93.5% post-surgery.
• These changes indicate a predisposition to gastroesophageal reflux following gastric resection.

Impact:

• Highlights the functional consequences of gastric surgery on oesophago-gastric junction integrity.
• Underscores the increased risk of gastroesophageal reflux disease after partial gastric resection.
• Provides quantitative data on LOS performance changes relevant for surgical and clinical management.