The use of near-infrared fluorescence imaging with indocyanine green (ICG) is actually considered as a very useful tool in decision-making strategy during challenging surgical procedures with a growing evidence in the literature. Our aim is to perform a systematic review focusing on ICG applications in gastrointestinal surgery. We conducted a systematic review with narrative synthesis in conformity with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines using PubMed, Medline, and EMBASE databases to identify articles describing the gastrointestinal perioperative use of ICG in children. We extracted data on study design, demographics, surgical indications, ICG dose, and perioperative outcomes. Eleven articles, including 94 pediatric patients, from 2013 to 2022 met the inclusion criteria for narrative synthesis in our systematic review, of which 6/11 (54.5%) were case reports, 4/11 (36.4%) were retrospective studies, and 1/11 (0.1%) were case series. Current clinical applications of ICG in gastrointestinal pediatric surgery included: esophagogastric surgery in 4/11 articles (36.4%), intestinal and pancreatic surgery in 3/11 articles (27.2%), and colorectal surgery in 4/11 articles (36.4%). ICG fluorescence in gastrointestinal pediatric surgery is a promising and safe technology that facilitates intraoperative localization of anatomical structures to achieve a more precise dissection and avoid injury to other adjacent tissues. It can be considered as a meaningful tool for assessing intestinal viability, as it provides objective data on tissue perfusion, and can impact the intraoperative decision in reconstructive surgeries requiring anastomosis. Future studies are needed to confirm these initial promising results. The lack of comparative and prospective studies is still the main limitation.
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