• Alberto Mangano, Federico Gheza, Liaohai Leo Chen, Eleonora Maddalena Minerva, and Pier Cristoforo Giulianotti.
• Division of General, Minimally Invasive and Robotic Surgery, University of Illinois at Chicago, Chicago, IL.
• Surg Technol Int. 2018 Jun 1; 32: 101-104.

AbstractAnastomotic leakage is a severe complication after colonic/rectal surgery. One of the most important causes of anastomotic leakage is poor vascular supply. However, microvascular impairment at the anastomotic site is very often not detected intraoperatively by observation under white light. Indocyanine green (ICG)-enhanced fluorescence is a technology that may be useful for detecting microvascular alterations and potentially preventing anastomotic leakage. The aim of this Editorial-Minireview is to briefly and critically assess the literature evidence regarding the feasibility of using an ICG ?uorescent tracer for detecting microvascular changes in the perianastomotic tissue and its potential role in preventing anastomotic leakage. We focused on minimally invasive (robotic and laparoscopic) colorectal surgery. Intraoperative ICG angiography and the quantification of ICG kinetics can be used to intraoperatively reveal the tissue-perfusion status during colorectal surgery. This may be useful for intraoperatively changing a previously planned resection/anastomotic level, and conceivably decreasing the degree of anastomotic leakage. At this stage, even though ICG technology appears to be very promising and some preliminary clinical studies have suggested that certain ICG pharmacokinetic parameters may be used to predict leakage, more reliable scoring and grading tools are needed. Furthermore, in minimally invasive colorectal surgery, more randomized prospective well-powered trials are needed to properly standardize this surgical technology.

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