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• W2990596324 abstract "Abstract Aim In this study we correlated time to fluorescent enhancement as a quantitative value of intraoperative fluorescence angiography (IFA) to anastomotic leakage (AL) after esophagectomy with gastric conduit reconstruction. Background & Methods IFA seems a helpful technique to visualize anastomotic perfusion after esophagectomy. However, IFA is interpreted subjectively. To evaluate fluorescence objectively and find a threshold to predict AL, we evaluated time to fluorescence enhancement. All consecutive patients undergoing elective esophagectomy with gastric conduit reconstruction for a one-year period since the introduction of IFA in June 2018 were prospectively recorded. IFA was performed after injection of indocyanine green (ICG) before and/or after anastomotic reconstruction. During IFA, time to fluorescent enhancement was recorded (time points: ICG injection, enhancement in lung, base of gastric conduit, planned anastomotic site, tip of gastric conduit). The anastomotic site was changed according to subjective interpretation of IFA. AL was classified according to the ECCG classification. Results Sixty-five patients underwent esophagectomy with gastric conduit reconstruction for esophageal cancer. The anastomosis was either constructed in the cervical (13/65, 20%) or intrathoracic (52/65, 80%) region. The anastomotic site was adjusted due to IFA in 3/65 (4.6%) cases. AL occurred in 7/65 (10.8%) patients and in 1/3 (33.3%) after change of anastomotic site. Before anastomotic reconstruction, time between ICG injection and enhancement of the tip (injection-tip) and time between enhancement in the lung and base of the conduit (lung-conduit) were significantly correlated with AL (p=0.027 and p=0.042, respectively). ROC curve analysis revealed a cut-off value of 61 seconds for injection-tip with an area under the curve (AUC) of 0.91 and corresponding sensitivity 82.9% and specificity 100%. For lung-conduit a cut-off value of 11 seconds was found with an AUC of 0.71 and corresponding sensitivity 63% and specificity 83%. Conclusion In this study cut-off values for the time between injection-tip and lung-conduit were derived to predict AL after esophagectomy. Time to fluorescent enhancement is a quantitative fluorescent parameter, which is easy to implement, as no software is required. However, a larger cohort needs to be observed for potential significance of the difference between other time points and to confirm these thresholds." @default.
• W2990596324 created "2019-12-05" @default.
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• W2990596324 date "2019-11-01" @default.
• W2990596324 modified "2023-10-16" @default.
• W2990596324 title "P87 FLUORESCENCE ANGIOGRAPHY OF THE ANASTOMOTIC SITE DURING ESOPHAGECTOMY: TIME TO ENHANCEMENT AS QUANTITATIVE VALUE TO PREDICT ANASTOMOTIC LEAKAGE" @default.
• W2990596324 doi "https://doi.org/10.1093/dote/doz092.87" @default.
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