Indocyanine green (ICG) assessment of ureteral perfusion during pediatric robotic surgery

Abstract

Background: Vascular preservation is a tenet of successful ureteral reconstruction. Near-infrared fluorescence (NIRF) imaging with indocyanine green (ICG) provides real-time identification of tissue perfusion during robotic surgery. Here, we present our utilization of NIRF with ICG to ensure adequate ureteral perfusion during robotic reconstruction in 3 pediatric patients. Case presentation: Between July 2019 and May 2020, we utilized NIRF with ICG during 3 consecutive robotic ureteral reconstructive cases in an academic pediatric urology practice. Patients were 3-, 14-, and 17-years-old and presented with congenital ureteral stricture, mid-ureteral polyp disease, and distal-ureteral polyp disease, respectively. Following surgical reconstruction of each patient's underlying pathology, ICG doses of 0.039–0.086 mg/kg IV were used to elucidate blood supply to the affected segment of ureter prior to closing. In all 3 cases, NIRF with da Vinci Xi endoscope's Firefly® technology confirmed perfusion proximal and distal to target anatomy within 60 seconds of administration. Conclusion: Use of ICG appears to be low-cost, safe, and useful during pediatric urologic robotic surgery. This technology may be helpful to confirm satisfactory blood supply to the ureter following robotic ureteral reconstruction, as demonstrated in our case series of 3 pediatric patients.

Keywords

• Pediatric urology
• Near-infrared technology
• Fluorescence imaging
• Indocyanine green
• Ureteroureterostomy