Purpose: To investigate the prognostic value of R.E.N.A.L. (radius, exophytic/endophytic, nearness to collecting system or sinus, anterior/posterior, and location relative to polar lines) nephrometry score after percutaneous ablation of renal cell carcinoma (RCC).
Materials And Methods: A retrospective 5-year study was performed. Participants were 87 consecutive patients (median age, 67.1 y; 59.7% male, 40.3% female) with 101 biopsy-proven RCCs who underwent percutaneous ablation (54.0% cryoablation, 46.0% radiofrequency ablation). Follow-up computed tomography or magnetic resonance imaging was performed in all cases (mean follow-up, 34.6 mo ± 23.5). R.E.N.A.L. scores were analyzed to determine the association of the score with treatment outcomes and complications.
Results: All tumors corresponded to stage 1A disease. Mean tumor size was 2.05 cm (range, 0.7-3.9 cm), and 50.5% of the lesions measured > 2 cm. Nephrometry score was > 8 in 31.4% of lesions. Overall recurrence rate was 16.8%, first-year recurrence rate was 7.9%, and complication rate was 9.9%. A nephrometry score > 8 was associated with increased complications after percutaneous ablation (P < .0001), increased overall recurrence (P < .0001), and increased risk of first-year recurrence (P < .0001). Immediate complications were associated with tumor size > 2 cm (P < .0001) and risk of local recurrence (P < .001). Age, gender, and percutaneous ablation technique were not correlated with recurrence or immediate complications. Patients undergoing cryoablation had a higher nephrometry score with no significant differences in recurrence rate compared with RF ablation (P = .199).
Conclusions: A R.E.N.A.L. nephrometry score ≥ 8 predicts recurrence and complications after percutaneous renal ablation.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.jvir.2015.01.008 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A refined kidney tumor nephrometry system employed to screen pediatric patients who are eligible for nephron sparing surgery.
Front Pediatr
January 2025
Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
Purpose: Comprehension of the anatomical characteristics of pediatric kidney tumors is crucial for making surgical decisions. Previous kidney tumor nephrometry systems failed to incorporate two significant factors: tumor thrombus and multifocality. We develop a refined nephrometry system based on a comprehensive understanding of the characteristics exhibited by pediatric kidney tumors.
View Article and Find Full Text PDFConcordance between intraoperative macroscopic evaluation and permanent section analysis of tumor bed margin in partial nephrectomy: A prospective study.
Urol Oncol
January 2025
Urology and Nephrology Research Center, Research Institute for Urology and Nephrology, Shahid Labbafinejad Medical Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Objectives: To evaluate the concordance between the intraoperative visual assessment of the tumor bed for completeness of resection following partial nephrectomy and the permanent section analysis of biopsies taken from the tumor bed.
Methods: Patients undergoing partial nephrectomy at 2 university hospitals were prospectively enrolled. R.
Novel model of the region of interest modified Mayo Adhesive Probability score.
World J Urol
January 2025
Department of Urology, National Cancer Center Hospital East, Chiba, Japan.
Purpose: To evaluate the association between the newly developed region of interest (ROI)-modified Mayo Adhesive Probability (MAP) score, in which stranding was re-evaluated by computed tomography (CT) number, for predicting operation time in robot-assisted partial nephrectomy (RAPN).
Methods: The study participants were 119 patients who underwent transperitoneal RAPN. With regard to stranding, ROIs were evaluated, and the mean CT numbers were assigned a score ranging from 0 to 3.
Construction and application of a three-dimensional vascular variation-based nephrometry scoring system for completely endophytic renal tumors.
J Natl Cancer Cent
December 2024
Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, China.
Article Synopsis
- Completely endophytic renal tumors (CERT) complicate surgical procedures due to their hidden locations, prompting the need for a 3D scoring model (RAL) based on imaging to improve assessment and outcomes.
- In a study of 80 patients, those evaluated with 3D images (3D-Cohort) experienced fewer complications and better kidney function outcomes than those assessed with traditional 2D images (2D-Cohort), who faced longer surgeries and more significant bleeding.
- The RAL scoring system was found to effectively predict surgical challenges and kidney function decline, with higher scores indicating larger tumors and greater operational issues.
Predicting Bleeding Related Events in Robotic-Assisted Partial Nephrectomy for Angiomyolipoma: Simplifying Risk Assessment with Tumor Diameter and Depth, A Retrospective Study.
Ther Clin Risk Manag
December 2024
Department of Medicine, Chang Gung University, Taoyuan City, Taiwan.
Background: Evaluating risk factors for bleeding events in robot-assisted partial nephrectomy (RAPN) for renal angiomyolipoma (RAML) is essential for improving surgical outcomes.
Methods: We performed a retrospective analysis of patients who underwent RAPN for renal masses between May 2019 and June 2023 at a single medical center, categorizing them into AML and non-AML groups. We assessed demographic data, perioperative complications, and postoperative outcomes.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!