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Background <p>Anastomotic leak (AL) is a major complication in colorectal surgery, significantly contributing to perioperative morbidity and mortality. Among strategies to prevent AL, Indocyanine Green Fluorescence Angiography (ICG-FA) has emerged as a promising method for assessing bowel perfusion intraoperatively. This systematic review evaluates the impact of ICG-FA on AL rates and other postoperative outcomes following colorectal anastomoses.</p> Methods <p>A systematic search was conducted in PubMed, PubMed Central, MEDLINE, and Google Scholar, following PRISMA guidelines. Eligible studies included randomized controlled trials (RCTs), prospective cohort studies, and retrospective cohort studies comparing ICG-FA to controls in adult patients undergoing colorectal resections and anastomoses. Data on AL rates, intraoperative characteristics, and postoperative outcomes were extracted. Quality assessment was performed using the Newcastle–Ottawa Scale and the Revised Cochrane Risk-of-Bias Tool.</p> Results <p>Sixteen studies (12 retrospective, 1 prospective, and 3 RCTs) involving 3231 patients (1562 ICG-FA and 1669 controls) were included. AL rates were significantly lower in the ICG-FA group (5.18%) compared to controls (11.50%) (<i>p</i> &lt; 0.01). ICG-FA influenced surgical plans in 16.31% of cases. Operative time and ileostomy formation rates were comparable between groups. Reoperation, ileus, and wound infection rates showed minimal differences. Mortality rates were low in both groups (ICG-FA: 0.55%, control: 0.51%).</p> Conclusion <p>ICG-FA significantly reduces AL rates without increasing operative time or postoperative complications. This technique provides a reliable and safe assessment of bowel perfusion, supporting its integration into colorectal surgery protocols. Further high-quality RCTs are needed to confirm these findings and optimise its application.</p>

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The impact of indocyanine green fluorescence angiography (ICG-FA) on anastomotic leak rates and postoperative outcomes in colorectal anastomoses: a systematic review

  • 期刊论文

  • 发表日期：

    2025年1月22日

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  • Khadeija Hussain,
  • G. Balamurugan,
  • Chetna Ravindra,
  • Rohith Kodali,
  • Dency S. Hansalia,
  • Vinayak Rengan

摘要

Background

Anastomotic leak (AL) is a major complication in colorectal surgery, significantly contributing to perioperative morbidity and mortality. Among strategies to prevent AL, Indocyanine Green Fluorescence Angiography (ICG-FA) has emerged as a promising method for assessing bowel perfusion intraoperatively. This systematic review evaluates the impact of ICG-FA on AL rates and other postoperative outcomes following colorectal anastomoses.

Methods

A systematic search was conducted in PubMed, PubMed Central, MEDLINE, and Google Scholar, following PRISMA guidelines. Eligible studies included randomized controlled trials (RCTs), prospective cohort studies, and retrospective cohort studies comparing ICG-FA to controls in adult patients undergoing colorectal resections and anastomoses. Data on AL rates, intraoperative characteristics, and postoperative outcomes were extracted. Quality assessment was performed using the Newcastle–Ottawa Scale and the Revised Cochrane Risk-of-Bias Tool.

Results

Sixteen studies (12 retrospective, 1 prospective, and 3 RCTs) involving 3231 patients (1562 ICG-FA and 1669 controls) were included. AL rates were significantly lower in the ICG-FA group (5.18%) compared to controls (11.50%) (p < 0.01). ICG-FA influenced surgical plans in 16.31% of cases. Operative time and ileostomy formation rates were comparable between groups. Reoperation, ileus, and wound infection rates showed minimal differences. Mortality rates were low in both groups (ICG-FA: 0.55%, control: 0.51%).

Conclusion

ICG-FA significantly reduces AL rates without increasing operative time or postoperative complications. This technique provides a reliable and safe assessment of bowel perfusion, supporting its integration into colorectal surgery protocols. Further high-quality RCTs are needed to confirm these findings and optimise its application.