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Randomised Controlled Trial of Fluorescent Urography Using Intravenous Methylene Blue Compared to White Light Alone in Left-sided Colorectal Surgery
Sponsor: Chinese University of Hong Kong
Summary
This study will see if a blue dye (methylene blue) given into a vein, together with a special camera light, helps surgeons find the left ureter (the tube from the kidney to the bladder) faster during left-sided bowel surgery. Adults having open, laparoscopic, or robotic left-sided colorectal surgery will be randomly assigned to either the blue dye with special light or standard white light alone. The main question is whether the blue dye method finds the ureter more quickly, which could make the operation safer.
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
INTERVENTIONAL
Enrollment
108
Start Date
2026-10-01
Completion Date
2029-10-01
Last Updated
2026-09-23
Healthy Volunteers
No
Conditions
Interventions
Intravenous Methylene blue
Intravenous methylene blue 0.5-1.0 mg/kg administered intraoperatively for fluorescence ureter identification.
Fluorescence Imaging Device for Methylene Blue
Modified Stryker 1688 Fluorescence Laparoscopic System with additional filter
Locations (1)
Prince of Wales Hospital, The Chinese University of Hong Kong
Hong Kong, Hong Kong