BACKGROUND: Available technologies could avoid global ischemia for the removal of a renal tumor. OBJECTIVE: To present hyperaccuracy three-dimensional (HA3D) reconstruction during robot-assisted partial nephrectomy (RAPN) and compare its efficacy in sponsoring successful selective clamping of renal arterial branches during RAPN. DESIGN, SETTING, AND PARTICIPANTS: Patients undergoing RAPN (January 2016-July 2017) for renal mass PADUA score ≥10 who underwent abdominal computed tomography scan with angiography. Since February 2017 HA3D reconstruction was performed. SURGICAL PROCEDURE: HA3D reconstruction-aided RAPN and standard RAPN with selective clamping. MEASUREMENTS: Intraoperative variables focusing on the renal arterial pedicle management and success rate of its planned management. RESULTS AND LIMITATIONS: Thirty-one patients in group no HA3D and 21 in group HA3D. The median (standard deviation) tumor size was 50.9 and 50.8mm (p=0.97), and median PADUA scores 10.5 and 11 (p=0.85) for groups no HA3D and HA3D, respectively. In group no HA3D, a significantly higher number of patients underwent global ischemia (80% vs 24%, p<0.01). Of note, in 90% of the group HA3D cases, intraoperative management of the renal pedicle was performed as preoperatively planned; in 39% of the group no HA3D cases, management of the renal arterial pedicle was varied intraoperatively (p=0.04). We disclose the limited sample size and the experimental technique. CONCLUSIONS: Preoperative simulation of selective ischemia was feasible and effective with HA3D reconstruction. In all the RAPN cases performed, selective clamping was successful, avoiding ischemia of the healthy renal remnant. A strict collaboration between urologists and bioengineers is mandatory to improve the technology. PATIENT SUMMARY: In this report, we found that an accurate three-dimensional reconstruction of the kidney before conservative surgery for renal cancer seems to help in avoiding the global ischemia of the kidney. Further studies are needed to conclude if avoiding a percentage of ischemia to the kidney is clinically relevant.

Hyperaccuracy Three-dimensional Reconstruction Is Able to Maximize the Efficacy of Selective Clamping During Robot-assisted Partial Nephrectomy for Complex Renal Masses

Porpiglia F.
First
;
Fiori C.;Checcucci E.;Amparore D.;Bertolo R.
2018-01-01

Abstract

BACKGROUND: Available technologies could avoid global ischemia for the removal of a renal tumor. OBJECTIVE: To present hyperaccuracy three-dimensional (HA3D) reconstruction during robot-assisted partial nephrectomy (RAPN) and compare its efficacy in sponsoring successful selective clamping of renal arterial branches during RAPN. DESIGN, SETTING, AND PARTICIPANTS: Patients undergoing RAPN (January 2016-July 2017) for renal mass PADUA score ≥10 who underwent abdominal computed tomography scan with angiography. Since February 2017 HA3D reconstruction was performed. SURGICAL PROCEDURE: HA3D reconstruction-aided RAPN and standard RAPN with selective clamping. MEASUREMENTS: Intraoperative variables focusing on the renal arterial pedicle management and success rate of its planned management. RESULTS AND LIMITATIONS: Thirty-one patients in group no HA3D and 21 in group HA3D. The median (standard deviation) tumor size was 50.9 and 50.8mm (p=0.97), and median PADUA scores 10.5 and 11 (p=0.85) for groups no HA3D and HA3D, respectively. In group no HA3D, a significantly higher number of patients underwent global ischemia (80% vs 24%, p<0.01). Of note, in 90% of the group HA3D cases, intraoperative management of the renal pedicle was performed as preoperatively planned; in 39% of the group no HA3D cases, management of the renal arterial pedicle was varied intraoperatively (p=0.04). We disclose the limited sample size and the experimental technique. CONCLUSIONS: Preoperative simulation of selective ischemia was feasible and effective with HA3D reconstruction. In all the RAPN cases performed, selective clamping was successful, avoiding ischemia of the healthy renal remnant. A strict collaboration between urologists and bioengineers is mandatory to improve the technology. PATIENT SUMMARY: In this report, we found that an accurate three-dimensional reconstruction of the kidney before conservative surgery for renal cancer seems to help in avoiding the global ischemia of the kidney. Further studies are needed to conclude if avoiding a percentage of ischemia to the kidney is clinically relevant.
2018
74
5
651
660
http://www.europeanurology.com/
Augmented reality; Fluorescence; Partial nephrectomy; Precision surgery; Renal ischemia; Three-dimensional reconstruction; Aged; Computed Tomography Angiography; Constriction; Female; Humans; Imaging, Three-Dimensional; Kidney Neoplasms; Male; Middle Aged; Multidetector Computed Tomography; Nephrectomy; Predictive Value of Tests; Prospective Studies; Radiographic Image Interpretation, Computer-Assisted; Reproducibility of Results; Software; Treatment Outcome; Tumor Burden; Robotic Surgical Procedures
Porpiglia F.; Fiori C.; Checcucci E.; Amparore D.; Bertolo R.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1710002
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