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Nephrometry

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https://www.readbyqxmd.com/read/29174503/external-validation-of-the-arterial-based-complexity-score-and-first-head-to-head-comparison-with-the-r-e-n-a-l-and-padua-scores-and-c-index
#1
Alessandro Antonelli, Alessandro Veccia, Marco Sandri, Maria Chiara Furlan, Stefano Recenti, Mario Sodano, Carlotta Palumbo, Alberto Cozzoli, Claudio Simeone
INTRODUCTION: We performed an external validation of the arterial-based complexity (ABC) score using a head-to-head comparison with the R.E.N.A.L. (radius, exophytic/endophytic tumor properties, nearness of tumor to deepest portion of collecting system or sinus, anterior/posterior descriptor, location relative to the polar line), PADUA (preoperative aspects and dimension for anatomic classification of renal tumors), and C-index scores for the prediction of surgical outcomes after partial nephrectomy...
November 7, 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/29151960/r-e-n-a-l-nephrometry-score-a-preoperative-risk-factor-predicting-the-fuhrman-grade-of-clear-cell-renal-carcinoma
#2
Shao-Hao Chen, Yu-Peng Wu, Xiao-Dong Li, Tian Lin, Qing-Yong Guo, Ye-Hui Chen, Jin-Bei Huang, Yong Wei, Xue-Yi Xue, Qing-Shui Zheng, Ning Xu
Objective: The purpose of this study was to evaluate the efficacy and feasibility of the R.E.N.A.L. Nephrometry Score to postoperatively predict high-grade clear-cell renal carcinoma (ccRCC). Methods: The study included 288 patients diagnosed with ccRCC who had complete CT/CTA data and R.E.N.A.L. Nephrometry Scores and underwent renal surgery at our center between January 2012 and December 2015. The relationship between the pathological grade of renal masses and R.E.N.A.L. Nephrometry Score was evaluated. Results: Univariate analysis indicated that diagnostic modality, cystic necrosis, enlargement of the regional lymph node, distant metastasis, clinical T stage, TNM stage, surgical modality, tumor size, nearness of the tumor to the collecting system or sinus, total Nephrometry Score and individual anatomic descriptor components were significantly associated with postoperative tumor grade (P < 0...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/29135137/-renal-function-after-laparoscopic-partial-nephrectomy-with-superselective-balloon-embolization-of-renal-artery
#3
A V Maksimov, A G Martov, L P Pavlov
AIM: To evaluate the functional state of the renal parenchyma after partial nephrectomy, depending on surgical technique. MATERIALS AND METHODS: The study comprised 21 patients with kidney neoplasms of stage T1-2N0M0. The patients underwent either laparoscopic partial nephrectomy with superselective balloon embolization of the renal artery (study group, n=11), or partial nephrectomy with vascular clamping (control group, n=10). The mean age of the patients in the study group (3 men and 8 women) was 56...
October 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/29113767/renal-functional-outcome-of-partial-nephrectomy-for-complex-r-e-n-a-l-score-tumors-with-or-without-neoadjuvant-sunitinib-a-multicenter-analysis
#4
Michelle L McDonald, Brian R Lane, Juan Jimenez, Hak J Lee, Kendrick Yim, Ahmet Bindayi, Zachary A Hamilton, Charles A Field, Aaron S Bloch, Sumi Dey, Sabrina Noyes, Rana McKay, Frederick Millard, Brian I Rini, Steven C Campbell, Ithaar H Derweesh
BACKGROUND: Sunitinib might optimize the feasibility of partial nephrectomy (PN) for complex renal tumors with imperative indications. We compared the renal functional outcomes of patients with complex renal masses who had undergone sunitinib before PN with those of patients who had not required neoadjuvant sunitinib before PN. PATIENTS AND METHODS: We performed a multicenter retrospective analysis of patients with renal cell carcinoma who had undergone PN for a complex renal mass (R...
September 25, 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/29104784/external-validation-of-four-nephrometry-scores-for-trans-peritoneal-robotic-partial-nephrectomy
#5
Bhavan Prasad Rai, Amit Patel, Ahmed Abroaf, Narin Suleyman, Shanmugasundaram Gowriemohan, Venkat Prasad, Nikhil Vasdev, Jim Adshead
Introduction: External validation of four nephrometry scores (NS): Centrality index (C-index), arterial based complexity (ABC), preoperative aspects and dimensions used for an anatomical (PADUA) and radius expohytic/endophytic nearness anterior/posterior location (RENAL) scoring systems in patients who have undergone trans-peritoneal robotic assisted partial nephrectomy (RAPN). Material and methods: A prospective database for RAPN has been maintained. Individual NSs were performed on 3-dimensional reconstructions of MDCT/MRI studies retrospectively by a board certified uroradiologist...
2017: Central European Journal of Urology
https://www.readbyqxmd.com/read/29092632/comparison-of-kidney-function-in-the-early-postoperative-period-in-transperitoneal-robot-assisted-laparoscopic-partial-nephrectomy-between-anterior-and-posterior-renal-tumors-a-propensity-score-matched-study
#6
Toshio Takagi, Tsunenori Kondo, Kazuhiko Yoshida, Hirohito Kobayashi, Junpei Iizuka, Masayoshi Okumi, Hideki Ishida, Kazunari Tanabe
Objective To compare early postoperative renal function in transperitoneal robot assisted laparoscopic partial nephrectomy (RAPN) for anterior and posterior renal tumors. Patients and Methods This study included 227 patients who underwent transperitoneal RAPN for anterior or posterior renal tumors. Tumor position was defined by RENAL nephrometry score. To minimize selection bias between anterior and posterior tumors, patient variables were adjusted using 1:1 propensity score matching. Results Of the 227 patients, 125 were classified as having anterior tumors and 102 as having posterior tumors...
November 1, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/29072806/strategies-for-success-a-multi-institutional-study-on-robotic-partial-nephrectomy-for-complex-renal-lesions
#7
D B Hennessey, G Wei, D Moon, N Kinnear, D M Bolton, N Lawrentschuk, Y K Chan
OBJECTIVE: Due to their size, location and proximity to the hilum, some complex renal tumours may preclude a minimally invasive approach to nephron sparing surgery. We describe our technique, illustrated with images and videos, of robotic partial nephrectomy for challenging renal tumours. PATIENTS AND METHODS: A study of 249 patients who underwent robotic partial nephrectomy (RPN) in multiple institutions was performed. Patients were identified using prospective RPN databases...
October 26, 2017: BJU International
https://www.readbyqxmd.com/read/29048228/predictive-factors-for-achieving-superior-pentafecta-outcomes-following-robot-assisted-partial-nephrectomy-in-patients-with-localized-renal-cell-carcinoma
#8
Minyong Kang, In-Hyuck Gong, Hwi Jun Park, Hyun Hwan Sung, Hwang Gyun Jeon, Byong Chang Jeong, Seong Soo Jeon, Hyun Moo Lee, Han Yong Choi, Seong Il Seo
PURPOSE: To examine the perioperative outcomes following robot-assisted partial nephrectomy (RAPN) in patients with localized renal cell carcinoma (RCC) and to identify the predictors of Pentafecta achievement following RAPN. MATERIALS AND METHODS: We retrospectively analyzed the data from 362 patients with RCC who underwent RAPN from 2008 to 2016. The criteria for Pentafecta achievement was defined as the Trifecta [warm ischemia time (WIT) ≤ 25 minutes, negative surgical margin, and no significant perioperative complications]; with the addition of renal function preservation, including over 90% preservation of the estimated-glomerular filtration rate (e-GFR); and no stage upgrade of chronic kidney disease at 1 year after surgery...
October 19, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/29044535/incidence-and-histologic-features-of-mixed-renal-tumors
#9
Neil J Kocher, Chris Rjepaj, Erik Lehman, Jay D Raman
BACKGROUND AND OBJECTIVES: Guidelines for management of renal cell carcinoma (RCC) incompletely address the implications of mixed renal tumor histology. We investigate the incidence of mixed renal tumors identified at renal surgery and determine the association with pathologic features. METHODS: Institutional kidney tumor database was reviewed to identify 536 patients who underwent partial or radical nephrectomy. Clinical, demographic, and pathologic data were collected...
October 16, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28954531/is-off-clamp-always-beneficial-during-robotic-partial-nephrectomy-a-propensity-score-matched-comparison-of-clamp-technique-in-patients-with-two-kidneys
#10
Daniel C Rosen, David J Paulucci, Ronney Abaza, Daniel D Eun, Akshay Bhandari, Ashok K Hemal, Ketan K Badani
OBJECTIVE: The majority of patients undergoing partial nephrectomy (PN) present with a clinical T1a tumor with both kidneys present. Some groups have advocated using off-clamp (Off-C) techniques to eliminate warm ischemia whenever possible, even when elective. We evaluated whether Off-C technique during robotic PN (RPN) provides any functional benefit over main arterial clamping (MAC) in these patients. Subjects/Patients and Methods: A total of 351 patients with a R.E.N.A.L. nephrometry score (RNS) <10, T1a tumor, and two kidneys who underwent RPN from five high-volume surgeons between 2008 and 2016 were retrospectively identified from a multi-institutional database...
November 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28941921/external-validation-of-contact-surface-area-as-a-predictor-of-post-operative-renal-function-in-patients-undergoing-partial-nephrectomy
#11
Miki Haifler, Benjamin T Ristau, Andrew M Higgins, Marc C Smaldone, Alexander Kutikov, Amnon Zisman, Robert G Uzzo
PURPOSE: To externally validate a mathematical formula for tumor contact surface area (CSA) as a predictor of post-operative renal function in patients undergoing partial nephrectomy for renal cell carcinoma. MATERIALS AND METHODS: A prospectively maintained kidney cancer database was queried for patients who underwent partial nephrectomy between 2014 and 2016. CSA was calculated using data obtained from pre-operative cross sectional imaging. The correlation between CSA and peri-operative variables was examined...
September 20, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28941919/local-tumor-bed-recurrence-following-partial-nephrectomy-in-patients-with-small-renal-masses
#12
Erika L Wood, Mehrad Adibi, Wei Qiao, Jessica Brandt, Miao Zhang, Pheroze Tamboli, Surena F Matin, Christopher G Wood, Jose A Karam
PURPOSE: We examined the incidence, characteristics and treatment of patients with tumor bed recurrence after partial nephrectomy. MATERIALS AND METHODS: We retrospectively reviewed the charts of 2,256 patients with sporadic small renal masses treated with partial nephrectomy between 2000 and 2014. Local tumor bed recurrence was strictly defined as detection of a new enhancing lesion 1) specifically in the surgical defect or 2) in the same region (eg lower pole) as the partial nephrectomy site...
September 20, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28875952/role-of-r-e-n-a-l-nephrometry-score-in-laparoscopic-partial-nephrectomy
#13
Hai-Jiang Zhou, Yong Yan, Jian-Zhong Zhang, Li-Rong Liang, Shu-Bin Guo
Background: Preoperative anatomical scoring system is conducive to comparison between treatment options and evaluation of postoperative outcomes in patients with small renal tumors. This study aimed to evaluate the clinical application efficacy of the R.E.N.A.L. nephrometry score (RNS) in predicting perioperative outcomes in patients with renal tumor who underwent laparoscopic partial nephrectomy (LPN). Methods: The clinical data of 139 patients with renal tumors who underwent LPN between 2009 and 2015 were collected and analyzed...
September 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28861728/off-clamp-robot-assisted-partial-nephrectomy-does-not-benefit-short-term-renal-function-a-matched-cohort-analysis
#14
Barrett G Anderson, Aaron M Potretzke, Kefu Du, Joel Vetter, R Sherburne Figenshau
In the interest of renal functional preservation, partial nephrectomy has supplanted radical nephrectomy as the preferred treatment for T1 renal masses. This procedure usually involves the induction of renal warm ischemia by clamping the hilar vessels prior to tumor excision. Performing robot-assisted partial nephrectomy (RAPN) "off-clamp" can theoretically prevent renal functional loss associated with warm ischemia. We describe our institutional experience and compare perioperative and renal functional outcomes using a propensity score matched cohort...
August 31, 2017: Journal of Robotic Surgery
https://www.readbyqxmd.com/read/28844831/percutaneous-cryoablation-of-renal-tumors-is-it-time-for-a-new-paradigm%C3%A2-shift
#15
Hussein D Aoun, Peter J Littrup, Mohamed Jaber, Fatima Memon, Barbara Adam, Mark Krycia, Matthew Prus, Elisabeth Heath, Edson Pontes
PURPOSE: To retrospectively assess long-term outcomes of percutaneous renal cryoablation, including factors affecting complications and local recurrence rates. MATERIALS AND METHODS: A total of 357 computed tomographic (CT) fluoroscopy-guided percutaneous cryoablation procedures were performed for 382 masses in 302 outpatients; 347 were biopsy-proven renal-cell carcinoma (RCC) or Bosniak category > III masses (n = 28). Benign pathologic conditions (n = 18) or metastatic non-RCC disease (n = 17) were included to analyze procedural complication rate, but recurrence rates, tumor staging, and nephrometry score were limited to RCCs...
October 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/28816275/-clinical-application-of-retroperitoneal-laparoscopic-surgery-combined-with-mini-flank-incision-hybrid-surgery-for-partial-nephrectomy-of-complex-renal-tumors
#16
X J Ye, J Liu, A Ablimit, L L Xiong, S J Liu, T Xu, X B Huang
OBJECTIVE: To evaluate the clinical effect and safety of retroperitoneal laparoscopic surgery combined with mini-flank incision "hybrid surgery" for partial nephrectomy of complex renal tumors. METHODS: Between April 2015 and December 2016, the clinical data from 16 patients with complex renal tumors who underwent the "hybrid surgery", including 10 males and 6 females, were retrospectively reviewed. The average age was (50.2±10.7) years, 9 cases were located in the left side and 7 cases in the right side, the mean tumor size was (6...
August 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28797586/obesity-as-defined-by-waist-circumference-but-not-body-mass-index-is-associated-with-higher-renal-mass-complexity
#17
Laura A Bertrand, Lewis J Thomas, Peng Li, Claire M Buchta, Shannon K Boi, Rachael M Orlandella, James A Brown, Kenneth G Nepple, Lyse A Norian
OBJECTIVES: Obesity, typically defined as a body mass index (BMI)≥30kg/m(2), is an established risk factor for renal cell carcinoma (RCC) but is paradoxically linked to less advanced disease at diagnosis and improved outcomes. However, BMI has inherent flaws, and alternate obesity-defining metrics that emphasize abdominal fat are available. We investigated 3 obesity-defining metrics, to better examine the associations of abdominal fat vs. generalized obesity with renal tumor stage, grade, or R...
November 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28727381/nephrometry-scores-and-perioperative-outcomes-following-robotic-partial-nephrectomy
#18
Renato B Corradi, Emily A Vertosick, Daniel P Nguyen, Antoni Vilaseca, Daniel D Sjoberg, Nicole Benfante, Lucas N Nogueira, Massimiliano Spaliviero, Karim A Touijer, Paul Russo, Jonathan A Coleman
OBJECTIVES: Based on imaging features, nephrometry scoring systems have been conceived to create a standardized and reproducible way to characterize renal tumor anatomy. However, less is known about which of these individual measures are important with regard to clinically relevant perioperative outcomes such as ischemia time (IT), estimated blood loss (EBL), length of hospital stay (LOS), and change in estimated glomerular filtration rate (eGFR) after robotic partial nephrectomy (PN)...
July 20, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28717275/initial-experience-of-robotic-nephron-sparing-surgery-in-cases-of-high-renal-nephrometry-scores
#19
Girdhar S Bora, Ravimohan S Mavuduru, Aditya P Sharma, Sudheer K Devana, Nandita Kakkar, Anupam Lal, Shrawan K Singh, Arup K Mandal
INTRODUCTION: The renal nephrometry scoring (RNS) system enables prediction the feasibility of nephron-sparing surgery (NSS) in renal masses. There is insufficient data regarding the outcome of robot-assisted NSS in tumors with RNS ≥10. We reviewed the trifecta outcomes of patients undergoing robotic NSS with high RNS and compare it with tumors of low and intermediate RNS. MATERIALS AND METHODS: Our prospectively maintained data of all robot-assisted NSS were reviewed, and those with RNS of ≥10 were identified...
July 2017: Indian Journal of Urology: IJU: Journal of the Urological Society of India
https://www.readbyqxmd.com/read/28678572/percutaneous-image-guided-thermal-ablation-for-multifocal-renal-cell-carcinoma-10-year-experience-at-a-single-center
#20
Wenhui Zhou, Raul N Uppot, Adam S Feldman, Ronald S Arellano
OBJECTIVE: The objective of our study was to assess the technical success, safety, and oncologic and renal function outcomes of CT-guided percutaneous thermal ablation for synchronous multiple renal masses in a single session. MATERIALS AND METHODS: A retrospective analysis of 23 patients (16 men and 7 women; median age, 70 years) with biopsy-proven multifocal renal cell carcinoma (RCC) masses treated with radiofrequency ablation (RFA), cryoablation, or microwave ablation (MWA) was performed...
October 2017: AJR. American Journal of Roentgenology
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