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Nephrometry

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https://www.readbyqxmd.com/read/29666953/multi-institutional-analysis-of-ct-and-mri-reports-evaluating-indeterminate-renal-masses-comparison-to-a-national-survey-investigating-desired-report-elements
#1
Eric M Hu, Andrew Zhang, Stuart G Silverman, Ivan M Pedrosa, Zhen J Wang, Andrew D Smith, Hersh Chandarana, Ankur Doshi, Atul B Shinagare, Erick M Remer, Samuel D Kaffenberger, David C Miller, Matthew S Davenport
PURPOSE: To determine the need for a standardized renal mass reporting template by analyzing reports of indeterminate renal masses and comparing their contents to stated preferences of radiologists and urologists. METHODS: The host IRB waived regulatory oversight for this multi-institutional HIPAA-compliant quality improvement effort. CT and MRI reports created to characterize an indeterminate renal mass were analyzed from 6 community (median: 17 reports/site) and 6 academic (median: 23 reports/site) United States practices...
April 17, 2018: Abdominal Radiology
https://www.readbyqxmd.com/read/29578041/intraoperative-conversion-from-partial-to-radical-nephrectomy-incidence-predictive-factors-and-outcomes
#2
Firas G Petros, Sarp K Keskin, Kai-Jie Yu, Roger Li, Michael J Metcalfe, Bryan M Fellman, Courtney M Chang, Cindy Gu, Pheroze Tamboli, Surena F Matin, Jose A Karam, Christopher G Wood
Objectives To evaluate preoperative and intraoperative predictors of conversion to radical nephrectomy (RN) in a cohort of patients undergoing a planned partial nephrectomy (PN) for renal cell carcinoma (RCC). Methods A single center, retrospective review was conducted using our PN database that includes patients who were scheduled to undergo PN (regardless of the approach) but were converted to RN between August 1990 and December 2016. Reasons for conversion were collected from the operative report. Patient demographics and perioperative variables were compared to successful PN group...
March 22, 2018: Urology
https://www.readbyqxmd.com/read/29556868/nephrometry-score-matched-robotic-vs-laparoscopic-vs-open-partial-nephrectomy
#3
Pooya Banapour, George A Abdelsayed, Zoe Bider-Canfield, Peter A Elliott, Patrick S Kilday, Gary W Chien
To compare perioperative outcomes in the three most common partial nephrectomy modalities: robotic (RPN), laparoscopic (LPN), and open (OPN), matched for nephrometry scores. Patients aged 16-85 who underwent RPN, LPN, or OPN from 2007 to 2014 for localized renal carcinoma within our healthcare system were enrolled. Age, sex, body mass index, and Charlson Comorbidity Index (CCI) as well as perioperative outcomes of estimated blood loss (EBL), length of hospital stay (LOS), ischemia time (IT), change in eGFR, positive margin rate, operative time (OT), and emergency room visit rates were compared between RPN, LPN, and OPN using the R...
March 19, 2018: Journal of Robotic Surgery
https://www.readbyqxmd.com/read/29532222/comparison-of-functional-outcomes-of-robotic-and-open-partial-nephrectomy-in-patients-with-pre-existing-chronic-kidney-disease-a-multicenter-study
#4
Zachary A Hamilton, Robert G Uzzo, Alessandro Larcher, Brian R Lane, Benjamin Ristau, Umberto Capitanio, Stephen Ryan, Sumi Dey, Andres Correa, Madhumitha Reddy, James A Proudfoot, Ryan Nasseri, Kendrick Yim, Sabrina Noyes, Ahmet Bindayi, Francesco Montorsi, Ithaar H Derweesh
BACKGROUND: We compared renal functional outcomes of robotic (RPN) and open partial nephrectomy (OPN) in patients with chronic kidney disease (CKD), a definite indication for nephron-sparing surgery. METHODS: A multicenter retrospective analysis of OPN and RPN in patients with baseline ≥ CKD Stage III [estimated glomerular filtration rate (eGFR) < 60 mL/min/1.73 m2 ] was performed. Primary outcome was change in eGFR (ΔeGFR, mL/min/1.73 m2 ) between preoperative and last follow-up with respect to RENAL nephrometry score group [simple (4-6), intermediate (7-9), complex (10-12)]...
March 12, 2018: World Journal of Urology
https://www.readbyqxmd.com/read/29523459/change-in-nephrometry-scoring-in-small-renal-masses-4-cm-on-active-surveillance-preliminary-observations-from-tayside-active-surveillance-cohort-tasc-study
#5
Khan H Mohammed, Zhang Wanzhe, Paterson Catherine, Szewczyk-Bieda Magda, Stephen Lang, Nabi Ghulam
RATIONALE AND OBJECTIVES: Prediction of growth, in particular knowing the possibility of aggressive cancer in small renal masses on active surveillance, remains poorly understood. The study was designed to determine whether serial nephrometry score measurements could predict possibility of aggressive malignancy (grade of cancer) in patients with small renal masses opting for active surveillance initially. MATERIALS AND METHODS: One hundred sixteen patients between January 2000 and December 2016 undergoing partial nephrectomy were recruited...
March 6, 2018: Academic Radiology
https://www.readbyqxmd.com/read/29517951/knotless-retroperitoneoscopic-nephron-sparing-surgery-for-small-renal-masses-comparison-of-bipolar-sutureless-technique-and-barbed-suture-technique
#6
Jianfei Ye, Shudong Zhang, Xiaojun Tian, Guoliang Wang, Lei Zhao, Lulin Ma
Objective Laparoscopic knot-tying and suturing are the most difficult steps in shortening the warm ischemia time and learning curve of laparoscopic nephron-sparing surgery. This study was performed to demonstrate the safety, oncological efficacy, and technical tips of sutureless retroperitoneal laparoscopic nephron-sparing surgery (RPNSS). Methods This retrospective study included 78 cases of RPNSS using a sutureless technique and 126 cases of RPNSS using a single-layer barbed self-retaining suture technique performed from December 2012 to December 2016...
January 1, 2018: Journal of International Medical Research
https://www.readbyqxmd.com/read/29500151/small-renal-masses-in-close-proximity-to-the-collecting-system-and-renal-sinus-are-enriched-for-malignancy-and-high-fuhrman-grade-and-should-be-considered-for-early-intervention
#7
Andres F Correa, Amir Toussi, Milon Amin, Ronald L Hrebinko, Bishoy A Gayed, Anil V Parwani, Jodi K Maranchie
INTRODUCTION: Recent reports show a correlation between renal tumor radiographic characteristics and pathologic features. We hypothesize that a more central location within the relatively hypoxic renal medulla might confer a more aggressive tumor phenotype. To test this, radiographic tumor characteristics were compared with tumor grade and histology. MATERIALS AND METHODS: We retrospectively reviewed renal masses <4 cm in diameter that underwent resection between 2008 and 2013...
February 5, 2018: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/29488096/oncologic-outcomes-of-patients-with-positive-surgical-margin-after-partial-nephrectomy-a-25-year-single-institution-experience
#8
Firas G Petros, Michael J Metcalfe, Kai-Jie Yu, Sarp K Keskin, Bryan M Fellman, Courtney M Chang, Cindy Gu, Pheroze Tamboli, Surena F Matin, Jose A Karam, Christopher G Wood
PURPOSE: To evaluate oncologic outcomes and management of patients with microscopic positive surgical margin (PSM) after partial nephrectomy (PN) for renal cell carcinoma (RCC). METHODS: We reviewed our database to identify patients who underwent PN between 1990 and 2015 for RCC and had PSM on final pathology. A 1:3 matching was performed to a negative surgical margin (NSM) cohort. Kaplan-Meier method and log-rank test were used to estimate survival and differences in outcomes, respectively...
February 27, 2018: World Journal of Urology
https://www.readbyqxmd.com/read/29472757/trifecta-outcomes-to-assess-learning-curve-of-robotic-partial-nephrectomy
#9
Olamide O Omidele, Natan Davoudzadeh, Michael Palese
Background and Objectives: The learning curve for achieving desirable perioperative outcomes in robot-assisted partial nephrectomy (RAPN) has not been well studied. Information is available regarding "trifecta" outcomes of no complications, no positive margins, warm ischemia time (WIT) of ≤25 minutes, and a ≤15% decrease in postoperative glomerular filtration rate (GFR). This study was conducted to assess the impact of the learning curve on surgical outcomes in patients undergoing RAPN...
January 2018: JSLS: Journal of the Society of Laparoendoscopic Surgeons
https://www.readbyqxmd.com/read/29426988/rfa-versus-robotic-partial-nephrectomy-for-t1a-renal-cell-carcinoma-a-propensity-score-matched-comparison-of-mid-term-outcome
#10
Byung Kwan Park, In Hyuck Gong, Min Yong Kang, Hyun Hwan Sung, Hwang Gyun Jeon, Byong Chang Jeong, Seong Soo Jeon, Hyun Moo Lee, Seong Il Seo
OBJECTIVE: To compare oncological and functional mid-term outcomes following robotic partial nephrectomy (RPN) and radiofrequency ablation (RFA) for treating T1a renal cell carcinoma (RCC) using propensity score-matching. METHODS: Between December 2008-April 2016, 63 patients from each treatment group were propensity score-matched for age, sex, American Society of Anesthesiologists score, tumour size, tumour laterality, tumour histology, R.E.N.A.L. nephrometry score and preoperative estimated glomerular filtration rate (eGFR)...
February 9, 2018: European Radiology
https://www.readbyqxmd.com/read/29417641/role-of-computed-tomography-calculated-intraparenchymal-tumor-volume-in-assessment-of-patients-undergoing-partial-nephrectomy
#11
Raj Vikesh Tiwari, Chia Ming Ho, Hong Hong Huang, Henry Sun Sien Ho, Allen Soon Phang Sim
OBJECTIVES: To determine the complexity of renal masses by using an objective novel imaging parameter (intraparenchymal tumor volume) based on computed tomography scans, to correlate this parameter to perioperative outcomes and to the RENAL nephrometry score. METHODS: After institutional review board approval, 87 patients who underwent partial nephrectomy between 2012 and 2016 at Singapore General Hospital, Singapore, were retrospectively analyzed. Preoperative computed tomography intravenous pyelogram scans were reviewed by a single senior radiologist who calculated the intraparenchymal tumor volume...
February 8, 2018: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/29397572/robot-assisted-laparoscopic-partial-nephrectomy-versus-laparoscopic-partial-nephrectomy-a-propensity-score-matched-comparative-analysis-of-surgical-outcomes-and-preserved-renal-parenchymal-volume
#12
Hidekazu Tachibana, Toshio Takagi, Tsunenori Kondo, Hideki Ishida, Kazunari Tanabe
OBJECTIVES: To compare surgical outcomes, including renal function and the preserved renal parenchymal volume, between robot-assisted laparoscopic partial nephrectomy and laparoscopic partial nephrectomy using propensity score-matched analyses. METHODS: In total, 253 patients, with a normal contralateral kidney, who underwent laparoscopic partial nephrectomy (n = 131) or robot-assisted laparoscopic partial nephrectomy (n = 122) with renal arterial clamping between 2010 and 2015, were included...
February 4, 2018: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/29382448/ipsilateral-renal-function-preservation-following-minimally-invasive-partial-nephrectomy-the-effect-of-tumour-characteristics-and-warm-ischemic-time
#13
Ernest Chan, Shawna L Boyle, Jeffrey Campbell, Patrick P W Luke
INTRODUCTION: The relative impact of preoperative and perioperative variables on renal function following partial nephrectomy (PN) is controversial. To further investigate, we assess the effects of tumour complexity, warm ischemic time (WIT), and volume of resected renal parenchyma on ipsilateral renal function (IRF) outcomes following minimally invasive PN. METHODS: Of patients who underwent laparoscopic or robotic-assisted PN between 2002 and 2011 at our institution, 99 met our inclusion criteria...
October 2017: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/29357404/robot-assisted-partial-nephrectomy-for-large-renal-masses-a-multi-institutional-series
#14
Joan C Delto, David Paulucci, Michael W Helbig, Ketan K Badani, Daniel Eun, James Porter, Ronney Abaza, Ashok K Hemal, Akshay Bhandari
OBJECTIVES: To compare peri-operative outcomes after robot-assisted partial nephrectomy (RAPN) for cT2a (7 to <10 cm) to cT1 tumours. MATERIALS AND METHODS: Patients with a cT1a (n = 1 358, 76.4%), cT1b (n = 379, 21.3%) or cT2a (n = 41, 2.3%) renal mass were identified from a multi-institutional RAPN database. Intra- and postoperative outcomes were compared for cT2a masses vs cT1a and cT1b masses using multivariable regression models (linear, logistic, Poisson etc...
January 22, 2018: BJU International
https://www.readbyqxmd.com/read/29343913/comparison-of-renal-padua-and-c-index-scoring-systems-in-predicting-perioperative-outcomes-after-nephron-sparing-surgery
#15
Aditya P Sharma, Ravimohan Suryanarayana Mavuduru, Girdhar Singh Bora, Sudheer K Devana, Kiruthika Palani, Anupam Lal, Nandita Kakkar, Shrawan K Singh, Arup K Mandal
Introduction and Objective: The RENAL, PADUA and centrality index (C-index) nephrometry scoring systems (SS) have been individually evaluated for their role in predicting trifecta outcomes after nephron-sparing surgery (NSS). However, there is little data on their comparative superiority. The present study was designed to evaluate the predictive value of three SS and to assess interobserver reliability. Materials and Methods: Fifty patients undergoing NSS at our center between January 2014 and April 2016 were included in the study...
January 2018: Indian Journal of Urology: IJU: Journal of the Urological Society of India
https://www.readbyqxmd.com/read/29284123/conversion-of-robot-assisted-partial-nephrectomy-to-radical-nephrectomy-a-prospective-multi-institutional-study
#16
Sohrab Arora, Brian Chun, Rajesh K Ahlawat, Ronney Abaza, James Adshead, James R Porter, Benjamin Challacombe, Prokar Dasgupta, Giorgio Gandaglia, Daniel A Moon, Thyavihally B Yuvaraja, Umberto Capitanio, Alessandro Larcher, Francesco Porpiglia, Alexander Mottrie, Mahendra Bhandari, Craig Rogers
OBJECTIVE: To assess the incidence and factors affecting conversion from robot-assisted partial nephrectomy (RAPN) to radical nephrectomy. METHODS: Between November 2014 and February 2017, 501 patients underwent attempted RAPN by 22 surgeons at 14 centers in 9 countries within the Vattikuti Collaborative Quality Initiative database. Patients were permanently logged for RAPN prior to surgery and were analyzed on an intention-to-treat basis. Multivariable logistic regression with backward stepwise selection of variables was done to assess the factors associated with conversion to radical nephrectomy...
March 2018: Urology
https://www.readbyqxmd.com/read/29278580/retroperitoneal-versus-transperitoneal-robotic-assisted-laparoscopic-partial-nephrectomy-a-matched-pair-bicenter-analysis-with-cost-comparison-using-time-driven-activity-based-costing
#17
Aaron A Laviana, Hung-Jui Tan, Jim C Hu, Alon Z Weizer, Sam S Chang, Daniel A Barocas
PURPOSE OF REVIEW: To perform a bicenter, retrospective study of perioperative outcomes of retroperitoneal versus transperitoneal robotic-assisted laparoscopic partial nephrectomy (RALPN) and assess costs using time-driven activity-based costing (TDABC). We identified 355 consecutive patients who underwent RALPN at University of California Los Angeles and the University of Michigan during 2009-2016. We matched according to RENAL nephrometry score, date, and institution for 78 retroperitoneal versus 78 transperitoneal RALPN...
March 2018: Current Opinion in Urology
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
#18
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
#19
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
#20
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
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