Laparoscopic Roux-en-Y Gastric Bypass Using a Fluorescence-Guided Gastric Calibration Tube

Background: Fluorescence-guided surgery (FGS) utilizing near-infrared (NIR) technology is a powerful technique for enhancing intraoperative visualization and safety. The Endolumik Gastric Calibration Tube (EGCT) is a novel device integrating NIR LEDs and fluorescence-guided measurement markings to support key steps in bariatric procedures. Case Presentation: . Discussion: This case highlights the feasibility of fluorescence-guided calibration during gastric bypass and its potential to support intraoperative workflows. The EGCT served as a multifunctional device for gastric suction, gastric calibration, and leak testing; it enhanced the visibility of gastric architecture and helped standardized gastric pouch construction. Further investigation is required to evaluate the device's impact on safety and other clinical outcomes.