Surgical usefulness of indocyanine green as an alternative to India ink for endoscopic marking |
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Authors: | Norikatsu Miyoshi Masayuki Ohue Shingo Noura Masahiko Yano Yo Sasaki Kentaro Kishi Terumasa Yamada Isao Miyashiro Hiroaki Ohigashi Hiroyasu Iishi Osamu Ishikawa Shingi Imaoka |
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Institution: | (1) Department of Surgery, Osaka Medical Center for Cancer and Cardiovascular Diseases, 1-3-3, Nakamichi, Higashinari, Osaka 537-8511, Japan;(2) Department of Gastrointestinal Oncology, Osaka Medical Center for Cancer and Cardiovascular Diseases, 1-3-3, Nakamichi, Higashinari, Osaka 537-8511, Japan |
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Abstract: | Background India ink has been commonly used for preoperative colonic tattooing, but various complications have been reported. This study
aimed to evaluate the usefulness of indocyanine green (ICG) marking as a replacement for India ink.
Methods This study enrolled 40 patients who between January 2005 and February 2006 underwent laparoscopic or open surgery for colorectal
lesions considered difficult to locate intraoperatively. Because one patient had a history of allergy to iodinated contrast
material, metal clipping was used instead of ICG to mark the lesion. Endoscopists injected 5 ml of ICG suspension and saline
solution adjacent to the lesion at duplicate locations to evaluate the visibility, duration, and adverse effects of the dye.
For 39 patients, the date of the preoperative colonoscopy was not set for examination of the appropriate interval between
endoscopic marking and the surgical operation.
Results The median interval between ICG marking and surgery was 4 days (range, 1–73 days). All 29 patients who underwent surgery within
8 days after marking had positive green ICG staining at the time of surgery. After 9 days or more, however, positive staining
was seen clearly in only two of the remaining 10 patients. The staining tended to grow weaker and fainter over the time course,
eventually dissipating. No perioperative adverse reactions to the dye were observed.
Conclusion This study supports the use of ICG as a safe technique that can be identified reliably during operations performed within
8 days after endoscopic injection. |
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Keywords: | Colorectum Endoscopic marking India ink Indocyanine green Laparoscopic surgery |
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