The Use of Indocyanine Green to Visualize Blood Flow to the Gastrojejunostomy During Bariatric Surgery.

Obesity, Morbid Clinical Trial

Official title: The Use of Indocyanine Green to Visualize Blood Flow to the Gastrojejunostomy During Bariatric Surgery

Status Recruiting

Clinical Trial Summary

This is an interventional pilot study aimed to evaluate the use of NIF imaging as an intraoperative aid to assess the anastomotic blood flow to the gastric pouch and gastrojejunostomy during Roux-en-Y gastric bypass surgery and to determine its long-term impact on the rate of marginal ulceration, leaks and stricture.

Clinical Trial Description

The purpose of this study is to examine intraoperative usefulness of near-infrared light fluorescence imaging with a contrast agent called indocyanine green to improve visualization of blood flow to a surgical connection between the small intestine and stomach (gastrojejunostomy) in patients undergoing gastric bypass surgery. ICG will be given prior to and after making the gastrojejunostomy to examine blood flow and then a subjective perfusion score will be given by the surgeon and assistant during the surgery.

Patients will be recruited before the laparoscopic Roux-en-Y gastric bypass surgery and the study data will be collected prospectively through standard bariatric follow up visits up to 2 years. A mid-term analysis of the procedure and patient outcomes will be performed for quality assurance purposes when half the study patients have undergone intraoperative ICG use. The ICG will be not given if a patient is allergic to sodium iodide or has a history of allergy to iodides because of the risk of a severe allergic reaction.

Participants will be assigned an identifying number to protect confidentiality. Descriptive univariate and multivariate statistical analysis will be performed on all patients satisfying the study's inclusion criteria. ;

Related Conditions & MeSH terms

• Obesity, Morbid
• Stomach Ulcer
• Ulcer, Gastric

• NCT number: NCT06002906
• Study type: Interventional
• Source: University Health Network, Toronto
• Contact: Allan Okrainec, MDCM, MHPE
• Phone: 4166035224
• Email: allan.okrainec@uhn.ca
• Status: Recruiting
• Phase: Phase 4
• Start date: January 25, 2023
• Completion date: January 2026