Anatomical Alterations and Endoscopic Strategies After Upper Gastrointestinal Surgery

Area of Science:

• Gastroenterology
• Surgical Anatomy
• Endoscopic Procedures

Background:

• Upper gastrointestinal (GI) surgeries lead to diverse and complex anatomical changes.
• These alterations pose significant challenges for endoscopic evaluation and intervention.

Purpose of the Study:

• To systematically review anatomical alterations after upper GI surgeries (esophageal, gastric, bariatric).
• To propose tailored endoscopic approaches for each surgical type.
• To highlight essential principles for safe and accurate endoscopic interventions.

Main Methods:

• Systematic review of anatomical changes following esophageal, gastric, and bariatric surgeries.
• Analysis of endoscopic approaches for evaluating structural changes and complications.
• Discussion of surgery-specific characteristics and the "3C principles" (confirm anatomy, check perfusion, control complications).

Main Results:

• Detailed review of anatomical alterations in esophageal surgery (e.g., conduit reconstruction, strictures).
• Discussion of gastric reconstruction methods (Billroth I/II, Roux-en-Y) and their complications (strictures, bile reflux).
• Focus on bariatric surgery (sleeve gastrectomy, Roux-en-Y gastric bypass) complications and endoscopic management.

Conclusions:

• Understanding surgery-specific anatomy is crucial for endoscopic procedures.
• Pre- and post-operative review of records and imaging enhances diagnostic accuracy.
• Adherence to the "3C principles" improves safety and efficacy in patients with surgically altered GI anatomy.