Perioperative splanchnic perfusion variation around colorectal surgery using both indocyanine green spectrophotometry and fluorescence angiography

Intraoperative splanchnic perfusion varies substantially, particularly during distal colorectal resections. Although qualitative ICGFA may not reflect global hypoperfusion, quantitative fluorescence analysis shows concordance with spectrophotometric findings, supporting its potential as a complementary intraoperative perfusion-monitoring tool in colorectal surgery.