Avoid common mistakes on your manuscript.
Dear Sir
I read with interest the article entitled “Currently available and experimental dyes for intraoperative near-infrared fluorescence imaging of the ureters: a systematic review” by Slooter et al. [1]. In the discussion, the authors state that methylene blue detection is by near-infrared (NIR) fluorescence. However, methylene blue is excited at 660 nm and emits light at 700 nm, which is not routinely captured by NIR laparoscopes. In the two studies which were quoted by the review [2, 3], we used an in-house fluorescence capable laparoscope that was tuned to the 660 nm wavelength to detect fluorescence from methylene blue. We were unable to detect methylene blue fluorescence using the NIR setting. Currently, commercially available fluorescence laparoscopes are tuned to the NIR range only. We look forward to the development and distribution of commercially available fluorescence laparoscopes that can detect multiple wavelengths, which will allow more widespread use of methylene blue as a fluorescence dye to identify the position of ureters intra-operatively.
References
Slooter MD, Janssen A, Bemelman WA, Tanis PJ, Hompes R (2019) Currently available and experimental dyes for intraoperative near-infrared fluorescence imaging of the ureters: a systematic review. Tech Coloproctol 23(4):305–313
Yeung TM, Volpi D, Tullis ID, Nicholson GA, Buchs N, Cunningham C et al (2016) Identifying ureters in situ under fluorescence during laparoscopic and open colorectal surgery. Ann Surg 263(1):e1-2
Barnes TG, Hompes R, Birks J, Mortensen NJ, Jones O, Lindsey I et al (2018) Methylene blue fluorescence of the ureter during colorectal surgery. SurgEndosc 32(9):4036–4043
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
Trevor Yeung has provided consultancy services to Deallus Consulting.
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Yeung, T. Comment on “Currently available and experimental dyes for intraoperative near-infrared fluorescence imaging of the ureters: a systematic review”. Tech Coloproctol 25, 1265 (2021). https://doi.org/10.1007/s10151-021-02433-8
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10151-021-02433-8