This volume provides a practical guide to four specialized surgical and endoscopic interventions used in the treatment of gastrointestinal cancers. Developed by experienced clinicians, it examines laparoscopic gastrectomy, pelvic floor reconstruction using bladder peritoneum flap rotation, magnetic bead-assisted endoscopic submucosal dissection, and diverticular peroral endoscopic myotomy (D-POEM).

Readers will learn how to evaluate indications, plan procedures, address technical challenges, and incorporate these approaches into clinical practice. Structured chapters covering operative rationale, procedural workflows, technical summaries, and expert perspectives enable surgeons to translate experience-based knowledge into improved procedural execution.

Featuring real clinical cases and accompanying surgical videos, the book serves as a valuable resource for gastrointestinal surgeons, surgical oncologists, fellows, and advanced trainees seeking detailed guidance on minimally invasive techniques for gastrointestinal oncology.

Jiankun Hu, MD, PhD, FRCS, is Professor, Doctoral Supervisor, and Vice Dean of West China Hospital, Sichuan University. He also serves as Director of the Gastric Cancer Research Laboratory. Professor Hu specializes in gastrointestinal cancer surgery and minimally invasive surgical oncology. He has made significant contributions to gastric cancer research and serves in several national leadership roles in surgical oncology and minimally invasive surgery, including Vice President of the Chinese Endoscopist Association of the Chinese College of Surgeons.

Kun Yang, MD, PhD, is Professor, Chief Physician, and Director of the Gastric Cancer Center at West China Hospital, Sichuan University. He also serves as Deputy Director of the Gastric Cancer Research Laboratory. His clinical and research interests focus on gastric cancer, gastrointestinal oncology, and surgical oncology. Professor Yang has published extensively in the fields of gastric cancer treatment and translational research.

Ziqiang Wang, MD, PhD, is Professor and Director of the Colorectal Center at West China Hospital, Sichuan University. He is internationally recognized for his work in colorectal and minimally invasive surgery. Professor Wang introduced several innovative surgical concepts and procedures, including fascia-guided colorectal dissection techniques and bladder peritoneal flap reconstruction for pelvic floor partition. He was among the first surgeons in China to perform selective lateral pelvic lymph node dissection combined with radiotherapy for rectal cancer.

Bing Hu, MD, PhD, is Professor, Chief Physician, and Director of the Digestive Endoscopy Center at West China Hospital, Sichuan University. His expertise includes therapeutic endoscopy, early gastrointestinal cancer, pancreaticobiliary diseases, artificial intelligence in endoscopy, and translational medical engineering research. Professor Hu is widely recognized as a leading expert in digestive endoscopy and has published extensively in the field of minimally invasive gastrointestinal intervention.