Immediate and Functional Results of Different Types of Reconstructions After Proximal Gastrectomy For Gastric and Esophagogastric Junction Cancer

Proximal gastric and esophagogastric junction cancers comprise up to 40% of gastric malignancies. For localized disease, proximal gastrectomy is the main radical procedure, but reconstruction of GI tract often leads to significant functional issues. Rising use of proximal resections and broader indications have increased attention to postoperative quality of life (QoL). Common reconstructions include direct esophagogastrostomy (various types), double-tract reconstruction, jejunal interposition, and newer anti-reflux anastomoses (e.g., double-flap, overlap, tunnel techniques). Each method has unique pros and cons regarding reflux esophagitis, food passage, dumping syndrome, nutritional changes, and long-term QoL. No consensus exists on the optimal technique, leading to variable practices and outcomes. Most research focuses on oncologic radicality and survival, while functional results and QoL remain understudied. Systematic evaluation of functional outcomes across reconstruction types after proximal subtotal gastrectomy is needed in Russian Federation to improve QoL, advance research, and standardize treatment of proximal gastric and EGJ cancers.

NCT Number	NCT07441785
Lead Sponsor	P. Herzen Moscow Oncology Research Institute Collaborators: A.Loginov Moscow Clinical Scientific Center
Conditions	Gastric Cancer (GC), Siewert Type III Adenocarcinoma of Esophagogastric Junction, Siewert Type II Adenocarcinoma of Esophagogastric Junction
Enrollment	400 participants
Start Date	2025-01-01
Primary Completion	2028-12-31 (estimated)
Study Completion	2029-06-01 (estimated)
Updated on ClinicalTrials.gov	2026-04-22