The utility of intraoperative perfusion assessment during resection of colorectal cancer

De Nardi P, et al. Intraoperative angiography with indocyanine green to assess anastomosis perfusion in patients undergoing laparoscopic colorectal resection: results of a multicenter randomized controlled trial. Surg Endosc. 2020 Jan;34(1):53-60.

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Results: After randomization, 12 patients were excluded. Accordingly, 240 patients were included in the analysis; 118 were in the study group, and 122 in the control group. ICG angiography showed insufficient perfusion of the colic stump, which led to extended bowel resection in 13 cases (11%). An anastomotic leak developed in 11 patients (9%) in the control group and in 6 patients (5%) in the study group (p = n.s.).

Conclusions: Intraoperative ICG fluorescent angiography can effectively assess vascularization of the colic stump and anastomosis in patients undergoing colorectal resection. This method led to further proximal bowel resection in 13 cases, however, there was no statistically significant reduction of anastomotic leak rate in the ICG arm.

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Article of interest: Biliary complications after pancreaticoduodenectomy: skinny bile ducts are surgeons’ enemies

Duconseil P, Turrini O, Ewald J, et al. Biliary complications after pancreaticoduodenectomy: skinny bile ducts are surgeons’ enemies. World J Surg. 2014 Nov;38(11):2946-51.

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Results: Thirty patients experienced a BC: 13 BLs (3.3 %) and 17 BSs (4.3 %). A thin bile duct (<5 mm), measured during surgery, was the only predisposing factor for developing a BL or a BS. The management of the BLs consisted of surveillance in six patients (46 %), percutaneous drainage of bilioma in four patients (31 %), and reintervention in three patients (23 %). No patient with a BS had surgery as the frontline treatment: the initial management consisted of an endoscopic procedure, a percutaneous procedure, or medical treatment. Four patients (23.5 %) underwent surgical treatment after failure of nonsurgical procedures.

Conclusions: The only identified predictive factor of BC, either a BS or a BL, was a thin bile duct. Although the noninvasive technique was the treatment of choice initially, reintervention was required in almost 25 % of the cases.

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Article of interest: Oncological Outcomes After Anastomotic Leakage After Surgery for Colon or Rectal Cancer: Increased Risk of Local Recurrence

Koedam TWA, et al.; COLOR COLOR II study group. Oncological Outcomes After Anastomotic Leakage After Surgery for Colon or Rectal Cancer: Increased Risk of Local Recurrence. Ann Surg. 2020 Mar 27. [Epub ahead of print]

Results: For colon cancer, anastomotic leakage was not associated with increased percentage of local recurrence or decreased disease-free-survival. For rectal cancer, an increase of local recurrences (13.3% vs 4.6%; hazard ratio 2.96; 95% confidence interval 1.38-6.34; P = 0.005) and a decrease of disease-free survival (53.6% vs 70.9%; hazard ratio 1.67; 95% confidence interval 1.16-2.41; P = 0.006) at 5-year follow-up were found in patients with anastomotic leakage.

Conclusion: Short-term morbidity, mortality, and long-term oncological outcomes are negatively influenced by the occurrence of anastomotic leakage after rectal cancer surgery. For colon cancer, no significant effect was observed; however, due to low power, no conclusions on the influence of anastomotic leakage on outcomes after colon surgery could be reached. Clinical awareness of increased risk of local recurrence after anastomotic leakage throughout the follow-up is mandatory.

Article of interest: LekCheck: A Prospective Study to Identify Perioperative Modifiable Risk Factors for Anastomotic Leakage in Colorectal Surgery

Huisman DE, Reudink M, van Rooijen SJ, et al. LekCheck: A Prospective Study to Identify Perioperative Modifiable Risk Factors for Anastomotic Leakage in Colorectal Surgery. Ann Surg. 2020 Jun 4. [Epub ahead of print]

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Objective: To assess potentially modifiable perioperative risk factors for anastomotic leakage in adult patients undergoing colorectal surgery.

Summary background data: Colorectal anastomotic leakage (CAL) is the single most important denominator of postoperative outcome after colorectal surgery. To lower the risk of CAL, the current research focused on the association of potentially modifiable risk factors, both surgical and anesthesiological.

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