Proceedings of the International scientific and practical conference ―Development of Science and Education‖ (January 16-18, 2026) / Publisher website: www.naukainfo.com. – Vienna, Austria, 2026. – 207 p.

103 (92%). Isolated TG was performed in 186 (75.6%) patients, combined TG with resection of the body or tail of the pancreas, planar resection of the pancreas, splenectomy, resection of segments of the right and left lobes of the liver - in 60 (24.4%). Formation of an artificial small intestinal reservoir (JGP) to improve the functional results of TG was performed in 41 patients (manual method - 3, hardware - 38), inclusion of the duodenum (39%). Results. A significant decrease in postoperative mortality was obtained over the observation periods from 19% in the I period to 2.8% in the II period (6.8 times, p = 0.0023; χ2 = 9.288; p < 0.05) with no fatalities in the III period. Isolated TG was performed in 186 (75.6%) patients, combined – in 60 (24.4%). Mortality after isolated TG (10.2%) was 1.8 times lower than after combined TG (18.3%) (p = 0.1495; χ2 = 2.078; p > 0.05). To improve the functional results of TG in the long postoperative period and prevent postgastrectomy syndromes in 41 patients, an ultrasonic scalpel, a Patonmed welding device, circular and linear staplers were used, and various options for forming an JGP were developed: 1) an artificial small intestinal reservoir from a triple loop of the small intestine (triple anastomosis) on a disconnected loop by Y- Roux (14.6%); 2) Ω-loop JGP by suturing the afferent and afferent loops of the small intestine with a manual or hardware suture with the formation of a distal enteroenteroanastomosis by Brown (46.3%); 3) J-pouch interposition - an artificial small intestinal reservoir (JGP) located between the esophagus and duodenum (39%). In order to improve the functional results of the performed TG and JGP, along with the use of modern technologies (ultrasonic scalpel, Patonmed welding machine, circular and linear staplers), the method of 3D CT modeling and reconstruction was applied with the creation of a virtual computer model of the JGP with subsequent printing of the model on a 3D printer. The use of 3D CT modeling and reconstruction allows you to regulate the volume of the small intestinal reservoir, determine its position in relation to the internal organs (syntopy and skeletotopy), and prevent postgastrectomy syndromes (dumping syndrome, severe jejunoesophageal reflux, agastric asthenia and anemia, critical weight loss) in the postoperative period. The formation of the JGP was carried