This book is divided into 3 parts, each containing chapters that cover commonly encountered clinical scenarios of reoperative surgery. These parts include revisional bariatric surgery, reoperation for complications of bariatric surgery, and revisional anti-reflux and gastric procedures. The information covered discusses existing literature and best-practices in patient care, with a focus on operative technique, pitfalls, and post-operative complications. The aim of this book is to provide the reader with information on how to successfully manage a patient requiring reoperation.  Chapters also highlight the difference in patient outcomes when the procedures are completed in a minimally invasive approach rather than an open approach. Revisional Foregut Surgery serves as a valuable resource for medical students, surgical residents, fellows, and attending surgeons seeking advice and guidance on reoperative upper gastrointestinal surgery and their related complications.