Babol University of Medical Sciences Caspian Journal of Surgery 3115-9087 1 2 2025 06 01 Minimally Invasive Bariatric Surgery: Advancements and Techniques 65 76 725521 10.22088/caspjs.2025.2062244.1018 EN Ali Asri Minimally Invasive Surgery Research Center, Iran University of Medical Sciences, Tehran, Iran 0000-0003-2019-8010 Shima Rezaei Bana Department of Surgery, Minimally Invasive Surgery Research Center, Division of Minimally Invasive and Bariatric Surgery, Hazrate Fatemeh Hospital, Iran University of Medical Sciences, Tehran, Iran 0009-0004-2454-4157 Mohsen Lotfipour Department of Surgery, Minimally Invasive Surgery Research Center, Division of Minimally Invasive and Bariatric Surgery, Hazrate Fatemeh Hospital, Iran University of Medical Sciences, Tehran, Iran 0009-0001-6325-5380 Journal Article 2025 05 31 Minimally invasive bariatric surgery has become a cornerstone in the treatment of obesity, offering effective weight-loss solutions with fewer complications, shorter recovery times, and reduced hospital stays compared to traditional open surgeries. This review provides an overview of the most commonly used minimally invasive techniques, including Laparoscopic Roux-en-Y Gastric Bypass (LRYGB), Laparoscopic Sleeve Gastrectomy (LSG), Mini Gastric Bypass (OAGB), Laparoscopic Adjustable Gastric Banding (LAGB), and emerging endoscopic procedures such as Endoscopic Sleeve Gastroplasty (ESG) and Intragastric Balloon (IGB) Therapy. Each procedure’s mechanism of action, benefits, challenges, and expected outcomes are discussed, along with the patient selection criteria that help determine the most appropriate approach. The review highlights that minimally invasive approaches significantly reduce operative trauma, hospital stays, and postoperative complications, while also improving obesity-related comorbidities such as type 2 diabetes and hypertension. LRYGB and OAGB combine restrictive and malabsorptive mechanisms, leading to substantial weight loss and metabolic improvements, but require careful long-term nutritional monitoring. LSG, primarily a restrictive procedure, offers a favorable safety profile and is associated with significant appetite reduction due to hormonal changes. The article also discusses the challenges and complications unique to each technique, such as anastomotic leaks, nutritional deficiencies, and bile reflux. Overall, advances in minimally invasive bariatric surgery have expanded treatment options, improved patient outcomes, and set the stage for further innovations in obesity management https://www.caspjs.com/article_725521_1b64d759817d3be1bf8dfd0bd21a1a4e.pdf