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  • Title: Novel endoscopic marking clip equipped with resin-conjugated fluorescent indocyanine green during laparoscopic surgery for gastrointestinal cancer.
    Author: Namikawa T, Iwabu J, Hashiba M, Munekage M, Uemura S, Yamada T, Kitagawa H, Mizuta H, Okamoto K, Uchida K, Sato T, Kobayashi M, Hanazaki K.
    Journal: Langenbecks Arch Surg; 2020 Jun; 405(4):503-508. PubMed ID: 32474711.
    Abstract:
    PURPOSE: Intraoperative identification of the cancer location is often difficult to conduct during laparoscopic surgery, especially in early-stage cancers. This study aimed to investigate the feasibility and accuracy of a novel endoscopic clip resin-conjugated fluorescent indocyanine green during laparoscopic surgery for gastrointestinal cancer. METHODS: Preoperative placement of endoscopic marking clips equipped with resin-conjugated fluorescent indocyanine green was performed to determine the resection margin in eight patients with gastrointestinal cancer. During laparoscopic surgery, a dedicated laparoscopic system with a xenon light source was used to detect fluorescence. The evaluation determined whether the fluorescent from the clips was visualized during laparoscopic surgery. RESULTS: Fluorescent signal emitted from ICG in the resin of the clips was detected in six patients from the outer layer of the serosal surfaces of the gastrointestinal tract, and the clips aided in accurate resection line of the organ. There were no significant differences of age, gender, and BMI between the patients in whom we could and could not detect ICG fluorescence. CONCLUSIONS: The results demonstrated the usefulness of a novel clip-equipped fluorescent resin, which is a promising diagnostic tool to detect accurate tumor location during laparoscopic surgery.
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