Background: Perfusion plays an important role in anastomotic healing. Indocyanine-green fluorescence angiogram allows objective bowel perfusion assessment. This study aimed to investigate the impact of perfusion assessment on intraoperative decision during left-sided colorectal resections.
Method: This was a prospective, single-centre, observational study recruiting patients with left-sided colorectal resections. Perfusion of bowel segment was assessed with ICG fluorescence angiogram prior to resection and anastomosis intra-operatively. The planned transection site and the actual transection site after perfusion assessment were compared. The decision for diversion stoma was also evaluated.
Results: 110 patients with cancer of the sigmoid colon (29.1%) and rectum (70.9%) were recruited. Total mesorectal excision was performed in 51.8% of patients. The transection site was revised in 34.5% of cases: 30.9% more proximally and 3.6% more distally. The median distance between the intended and actual transection sites was 2 cm (range 1-17 cm). A proximal revision in the transection site was more likely seen in rectal cancers (p = 0.036, OR 3.58, 95% CI 1.09-11.78) and relatively under-perfused left colon (p = 0.036, OR 1.01, 95% CI 1.01-1.02). Three (2.7%) patients were spared from a diversion stoma. The overall anastomotic leakage rate was 5.5%.
Conclusion: ICG fluorescence angiogram altered operative decisions in a significant proportion of cases. The impact on transection site was more pronounced in patients with rectal cancers and those with relatively under-perfused colon.
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| http://dx.doi.org/10.1016/j.surge.2018.08.006 | DOI Listing |
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