Novel ureteral navigation with a fluorescent catheter during hemi-hysterectomy in cloacal exstrophy

[Purpose]: We used a near-infrared ray catheter (NIRC) in a child with cloacal exstrophy presenting with hematometra and assessed whether the NIRC could help with complicated adhesiolysis during hemi-hysterectomy in children. [Method]: A 6-French pig tail-type NIRC was inserted into the left ureter with guidance from a cystoscope. Laparoscopic hemi-hysterectomy with fluorescence observation was performed using the VISERA ELITE 2 system. [Result]: NIRC insertion into the left ureter was not as difficult as expected despite the eccentric position of the left ureter orifice. When we found an enlarged left uterus and fallopian tube, adhesion was extremely severe around them due to chronic inflammation caused by hematometra. When near-infrared rays were applied, a fluorescent ureteral catheter that emitted bright green excitation light was observed on the dorsal side of the enlarged left uterus and fallopian tube. Under ureteral navigation with an NIRC, dissection of the adhesions was performed safely and smoothly. Hemi-hysterectomy and adnexectomy were performed successfully. The patient was doing well 2 years postoperatively without any complications. [Conclusion]: An NIRC can provide useful real-time visualization of the ureter course and reduce the risk of ureteral damage in children with advanced adhesions.