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Nephrometry

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https://www.readbyqxmd.com/read/28411915/surgical-techniques-in-the-management-of-small-renal-masses
#1
REVIEW
Michael Daugherty, Gennady Bratslavsky
This article provides a review and outline of the various surgical techniques for small renal masses. It covers surgical approaches and compares outcomes of open versus minimally invasive surgery. The article discusses renal nephrometry scoring and renal ischemia at time of resection. Techniques for controlling the renal hilum and controlling blood flow to the kidney are described. Extirpative techniques for small renal masses are reviewed along with a comparison of outcomes. With careful adherence to key oncologic and surgical principles, negative margins, no complications, and no or minimal decline in renal functional outcomes can be achieved...
May 2017: Urologic Clinics of North America
https://www.readbyqxmd.com/read/28411910/renal-tumor-anatomic-complexity-clinical-implications-for-urologists
#2
REVIEW
Shreyas S Joshi, Robert G Uzzo
Anatomic tumor complexity can be objectively measured and reported using nephrometry. Various scoring systems have been developed in an attempt to correlate tumor complexity with intraoperative and postoperative outcomes. Nephrometry may also predict tumor biology in a noninvasive, reproducible manner. Other scoring systems can help predict surgical complexity and the likelihood of complications, independent of tumor characteristics. The accumulated data in this new field provide provocative evidence that objectifying anatomic complexity can consolidate reporting mechanisms and improve metrics of comparisons...
May 2017: Urologic Clinics of North America
https://www.readbyqxmd.com/read/28394520/-laparoscopic-partial-nephrectomy-with-superselective-balloon-embolization-of-renal-artery
#3
A V Maksimov, A G Martov, L P Pavlov, P A Neustroev, R R Vinokurov
AIM: To use superselective balloon embolization of segmental branches of the renal artery for intraoperative hemostasis during partial nephrectomy for renal malignancy. MATERIALS AND METHODS: From October 2015 to September 2016, 11 patients, including 3 males and 8 females aged 29-72 (mean 56.8) years underwent laparoscopic partial nephrectomy with superselective balloon embolization. In 5 and 6 cases the tumors were located in the right and left kidney, respectively, and in 7, 1 and 3 cases they were found in lower, upper and middle segments, respectively...
April 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/28359745/laparoscopic-cryoablation-for-renal-cell-carcinoma-100-month-oncologic-outcomes-caputo-pa-ramirez-d-zargar-h-akca-o-andrade-hs-o-malley-c-remer-em-kaouk-jh-j-urol-2015-oct-194-4-892-896-epub-2015-april-23-doi-10-1016-j-juro-2015-03-128
#4
Max Meng
PURPOSE: With the incidence of renal cell carcinoma on the rise treatment options for the small renal mass have broadened. Cryoablation is increasingly used as a therapeutic option for renal tumors in select cases. However, studies with long-term oncologic outcomes are sparse. We evaluated the long-term oncologic outcomes of laparoscopic renal mass cryoablation. MATERIALS AND METHODS: We reviewed our laparoscopic cryoablation database for patients treated with laparoscopic cryoablation from October 1997 to February 2005...
May 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28357532/ct-detection-of-fat-retention-in-the-bladder-after-partial-nephrectomy
#5
Junichi Kazaoka, Masashi Kusakabe, Taro Ottomo, Masaaki Akahane
PURPOSE: This study aimed to investigate the frequency of fat retention in the bladder using postoperative computed tomography (CT) and the associated imaging or clinical findings in patients who underwent renal tumor surgery. METHODS: We retrospectively reviewed postoperative CT images from 123 patients who underwent surgery for renal tumors (92 patients after partial nephrectomy and 31 after total nephrectomy). Furthermore, we evaluated preoperative tumor characteristics per an established standardized nephrometry scoring system (the R...
March 29, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28314305/prediction-of-postoperative-risks-in-laparoscopic-partial-nephrectomy-using-renal-mayo-adhesive-probability-and-renal-pelvic-score
#6
Simone Bier, Stefan Aufderklamm, Tilman Todenhöfer, Stephan Kruck, Karoline Schuster, Steffen Rausch, Ahmed Othman, Mike Notohamiprodjo, Konstantin Nikolaou, Christian Schwentner, Arnulf Stenzl, Georg Bier, Jens Bedke
AIM: To evaluate the Mayo Adhesive Probability (MAP) score, renal pelvis score, and RENAL nephrometry score for the prediction of surgical outcome in patients with renal masses undergoing laparoscopic partial nephrectomy at a single center. PATIENTS AND METHODS: A total of 280 patients who underwent laparoscopic partial nephrectomy were identified retrospectively. Thirty-eight patients were excluded because of a lack of preoperative imaging. The outcome measures included surgical technique, patient characteristics, MAP score, renal-pelvis-score, RENAL nephrometry score, and complication rates according to the Clavien-Dindo classification...
March 2017: Anticancer Research
https://www.readbyqxmd.com/read/28298726/reproducibility-and-interobserver-agreement-of-the-r-e-n-a-l-nephrometry-score-focus-on-imaging-features
#7
Richard Mast Vilaseca, Antonio Carlos Westphalen, Henrique Ferreira Reis, Orlando Salomão Zogbi, Gyl Eanes Silva, Rodolfo Borges Dos Reis, Valdair Francisco Muglia
OBJECTIVE: To investigate the reproducibility and interobserver agreement for R.E.N.A.L. nephrometry scoring system. MATERIALS AND METHODS: Two independent radiologists retrospectively analyzed 46 consecutive patients with renal masses, between 2008 and 2012, using the R.E.N.A.L. nephrometry score (RENAL-NS), which is based on the evaluation of five anatomical features of the tumor, as evaluated with computed tomography or magnetic resonance imaging: Radius, Exophytic/endophytic properties, Nearness to the collecting system, Anterior or posterior descriptor, and Location relative to the polar line...
January 2017: Radiologia Brasileira
https://www.readbyqxmd.com/read/28296030/comprehensive-assessment-of-renal-tumor-complexity-in-a-large-percutaneous-cryoablation-cohort
#8
Bimal Bhindi, R Houston Thompson, Ross J Mason, Mustafa M Haddad, Jennifer R Geske, A Nicholas Kurup, James D Hannon, Stephen A Boorjian, Bradley C Leibovich, Thomas D Atwell, Grant D Schmit
OBJECTIVE: To evaluate the association between renal tumor complexity and outcomes in a large cohort of patients undergoing percutaneous cryoablation (PCA). PATIENTS AND METHODS: Patients with renal tumors treated with PCA were identified using our prospectively-maintained ablation registry (2003-2015). Salvage procedures and inherited tumor syndromes were excluded. The associations between R.E.N.A.L. Nephrometry Score (NS) and risk of complications, renal function impairment, local failure, and cancer-specific mortality (CSM) were evaluated using univariate and multivariable logistic, linear and Cox regression models...
March 13, 2017: BJU International
https://www.readbyqxmd.com/read/28291714/analysis-of-the-renal-and-mrenal-scores-and-the-relative-importance-of-their-components-in-the-prediction-of-complications-and-local-progression-after-percutaneous-renal-cryoablation
#9
Samdeep K Mouli, Joseph L McDevitt, Yu-Kai Su, Ann B Ragin, Yi Gao, Albert A Nemcek, Robert J Lewandowski, Riad Salem, Kent T Sato
PURPOSE: To determine if modified RENAL (mRENAL) score and its individual components have superior predictive value relative to the RENAL nephrometry score in prediction of complications and recurrence after percutaneous renal cryoablation. MATERIALS AND METHODS: Primary masses treated with CT-guided percutaneous renal cryoablation between June 2007 and May 2016 were retrospectively reviewed. RENAL and mRENAL scores were used to stratify masses into low, medium, and high complexity tertiles...
March 10, 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/28283215/the-use-of-bovine-serum-albumin-glutaraldehyde-tissue-adhesive-bioglue-%C3%A2-for-tumor-bed-closure-following-open-partial-nephrectomy
#10
Z Bahouth, S Halachmi, S Shprits, Y Burbara, O Avitan, I Masarwa, B Moskovitz, O Nativ
OBJECTIVES: To report the results of the use of Bovine Serum Albumin-Glutaraldehyde tissue adhesive (BioGlue®) for tumor bed closure in open nephron-sparing surgery (NSS). MATERIALS AND METHODS: The cohort included 255 patients with enhancing renal mass who underwent open NSS. We used open flank approach, with in-situ hypothermia and enucleation of the tumor. For tumor bed closure, we used the BioGlue(®) sealant for tumor bed filling, without suturing the edges...
March 7, 2017: Actas Urologicas Españolas
https://www.readbyqxmd.com/read/28266814/predicting-outcomes-in-partial-nephrectomy-is-the-renal-score-useful
#11
André Costa Matos, Marcos F Dall'Oglio, José Roberto Colombo, Alexandre Crippa, João A Q Juveniz, Felipe Coelho Argolo
INTRODUCTION AND OBJECTIVE: The R.E.N.A.L. nephrometry system (RNS) has been validated in multiple open, laparoscopic and robotic partial nephrectomy series. The aim of this study was to test the accuracy of R.E.N.A.L. nephrometry system in predicting perioperative outcomes in surgical treatment of kidney tumors <7.0cm in a prospective model. MATERIALS AND METHODS: Seventy-one patients were selected and included in this prospective study. We evaluate the accuracy of RNS in predicting perioperative outcomes (WIT, OT, EBL, LOS, conversion, complications and surgical margins) in partial nephrectomy using ROC curves, univariate and multivariate analyses...
May 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28255621/irreversible-electroporation-of-small-renal-masses-suboptimal-oncologic-efficacy-in-an-early-series
#12
Noah E Canvasser, Igor Sorokin, Aaron H Lay, Monica S C Morgan, Asim Ozayar, Clayton Trimmer, Jeffrey A Cadeddu
PURPOSE: To report on the first short-term oncologic outcomes of percutaneous irreversible electroporation for small renal masses. METHODS: Patients with cT1a renal masses treated with irreversible electroporation from April 2013 through December 2016 were reviewed. Small, low complexity tumors were generally selected for irreversible electroporation using the NanoKnife(®) System (Angiodynamics, Latham, NY, USA). Surveillance imaging was performed post-operatively, and survival analysis was completed using the Kaplan-Meier method...
March 2, 2017: World Journal of Urology
https://www.readbyqxmd.com/read/28236579/does-ureteral-catheter-insertion-decrease-the-risk-of-urinary-leakage-after-partial-nephrectomy-in-patients-with-renal-cell-carcinoma
#13
Sangjun Yoo, Dalsan You, In Gab Jeong, Cheryn Song, Bumsik Hong, Jun Hyuk Hong, Hanjong Ahn, Choung-Soo Kim
INTRODUCTION: We aimed to evaluate the impact of preoperative ureteral catheter insertion on urinary leakage after partial nephrectomy (PN) in patients with renal cell carcinoma. METHODS: We reviewed the data of 893 patients with renal cell carcinoma who underwent PN and divided them according to ureteral catheter placement. The impact of ureteral catheter placement on postoperative urinary leakage was evaluated by using multivariate analysis. RESULTS: Ureteral catheters were inserted in 397 (44...
February 6, 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28216925/feasibility-of-laparoscopic-partial-nephrectomy-in-the-obese-patient-and-assessment-of-predictors-of-perioperative-outcomes
#14
Evan Jonathan Wiens, Deepak Kumar Pruthi, Ruchi Chhibba, Thomas Brian McGregor
INTRODUCTION: Partial nephrectomy is the gold standard for treatment of small renal masses. Our study compares outcomes for obese (body mass index [BMI] ≥30) and healthy (BMI <30) patients undergoing laparoscopic partial nephrectomy (LPN) with the intention of defining preoperative risk factors for complications and renal insufficiency in the obese. MATERIALS AND METHODS: We conducted a retrospective review of 187 consecutive patients who underwent LPN. We examined the association between BMI and postoperative complication, estimated blood loss (EBL), hospital length of stay, warm ischemic time (WIT), and postoperative renal function...
January 2017: Urology Annals
https://www.readbyqxmd.com/read/28211238/nephrometry-scoring-systems-valuable-research-tools-but-can-they-be-applied-in-daily-clinical-practice
#15
EDITORIAL
Matthew A Meissner, Jose A Karam
No abstract text is available yet for this article.
March 2017: BJU International
https://www.readbyqxmd.com/read/28185287/tumor-size-and-invasiveness-matters-for-partial-nephrectomy-external-validation-and-modification-of-the-arterial-based-complexity-score
#16
Maximilian C Kriegmair, Svetlana Hetjens, Philipp Mandel, Jula Wadle, Johannes Budjan, Maurice S Michel, Daniel Pfalzgraf, Nina Wagener
BACKGROUND: Outcome of partial nephrectomy (PN) depends on anatomic features of the renal tumor, which can be assessed by nephrometry scores. The aim was to externally validate and refine the Arterial Based Complexity (ABC) score and to compare it to established systems. METHODS: Tumors of 300 patients undergoing PN were categorized according to the ABC, RENAL, and PADUA score. Size and tumor invasiveness were combined to form the ABCD score. Correlation analysis and multivariate logistic regression was performed to validate and compare the respective scores as predictors of surgical outcome...
February 10, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28145654/preserving-renal-function-through-partial-nephrectomy-depends-on-tumor-complexity-in-t1b-renal-tumors
#17
Sangjun Yoo, Dalsan You, In Gab Jeong, Bumsik Hong, Jun Hyuk Hong, Choung Soo Kim, Hanjong Ahn, Cheryn Song
This study aimed to determine patients with T1b renal cell carcinoma (RCC) who could benefit from partial nephrectomy (PN) and method to identify them preoperatively using nephrometry score (NS). From a total of 483 radical nephrectomy (RN)-treated patients and 40 PN-treated patients who received treatment for T1b RCC between 1995 and 2010, 120 patients identified through 1:2 propensity-score matching were included for analysis. Probability of chronic kidney disease (CKD) until postoperative 5-years was calculated and regressed with respect to the surgical method and NS...
March 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28108975/3d-printed-soft-tissue-physical-models-of-renal-malignancies-for-individualized-surgical-simulation-a-feasibility-study
#18
Michael M Maddox, Allison Feibus, James Liu, Julie Wang, Raju Thomas, Jonathan L Silberstein
To construct patient-specific physical three-dimensional (3D) models of renal units with materials that approximates the properties of renal tissue to allow pre-operative and robotic training surgical simulation, 3D physical kidney models were created (3DSystems, Rock Hill, SC) using computerized tomography to segment structures of interest (parenchyma, vasculature, collection system, and tumor). Images were converted to a 3D surface mesh file for fabrication using a multi-jet 3D printer. A novel construction technique was employed to approximate normal renal tissue texture, printers selectively deposited photopolymer material forming the outer shell of the kidney, and subsequently, an agarose gel solution was injected into the inner cavity recreating the spongier renal parenchyma...
January 20, 2017: Journal of Robotic Surgery
https://www.readbyqxmd.com/read/28089074/does-teaching-of-robotic-partial-nephrectomy-affect-renal-function-and-perioperative-outcomes
#19
Yannick Cerantola, Guillaume Ploussard, Wassim Kassouf, Maurice Anidjar, Franck Bladou
PURPOSE: Partial nephrectomy (PN) represents the treatment of choice for localized renal tumor<7cm. Minimally invasive approaches are considered standard of care in many institutions. Maintaining acceptable warm ischemic time (WIT) while teaching robotic PN (RPN) remains challenging. The goal of the present study was to assess the effect of teaching RPN on WIT and renal function in patients undergoing RPN. METHODS: Patients undergoing RPN for cT1-T2 renal tumors were included...
January 6, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28076721/effect-of-tumor-complexity-and-technique-on-efficacy-and-complications-after-percutaneous-microwave-ablation-of-stage-t1a-renal-cell-carcinoma-a-single-center-retrospective-study
#20
Marki E Klapperich, E Jason Abel, Timothy J Ziemlewicz, Sara Best, Meghan G Lubner, Stephen Y Nakada, J Louis Hinshaw, Christopher L Brace, Fred T Lee, Shane A Wells
Purpose To evaluate the effects of tumor complexity and technique on early and midterm oncologic efficacy and rate of complications for 100 consecutive biopsy-proved stage T1a renal cell carcinomas (RCCs) treated with percutaneous microwave ablation. Materials and Methods This HIPAA-compliant, single-center retrospective study was approved by the institutional review board. The requirement to obtain informed consent was waived. Ninety-six consecutive patients (68 men, 28 women; mean age, 66 years ± 9.4) with 100 stage T1a N0M0 biopsy-proved RCCs (median diameter, 2...
January 11, 2017: Radiology
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