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Laparoscopic Roux-en-Y Gastric Bypass Using a Fluorescence-Guided Gastric Calibration Tube
Nova Szoka1, Andres Fontaine-Nicola2, Hayley Harman1
1Department of Surgery, W Virginia University, Morgantown, West Virginia, USA. (Drs. Harman, Tabone, Abunnaja, and Szoka).
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:
We demonstrate the utilization of the EGCT in a laparoscopic Roux-en-Y gastric bypass (LRYGB) procedure for a 55-year-old female patient with a BMI of 45 kg/m2 and obesity-related comorbidities. The 40 French EGCT was employed with NIR visualization to facilitate gastric decompression, pouch sizing, gastrojejunostomy calibration, and leak testing. The integrated 2 cm-spaced LED lights and black stripes enabled real-time gastric pouch measurement and provided precise anatomic calibration. The surgery was performed in 187 minutes without complications. At the 30-day follow-up, there was no morbidity and patient BMI was 41 kg/m2.
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.
