Research Topics
| Ofrer N GofritSummaryCountry: Israel Publications
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Detail Information
Publications
Renal cell carcinoma: evaluation of the 1997 TNM system and recommendations for follow-up after surgeryO N Gofrit
Department of Urology, Hadassah University Hospital, Jerusalem, Israel
Eur Urol 39:669-74; discussion 675. 2001..We evaluated the tumor recurrence pattern after radical or nephron-sparing surgery for localized renal cell carcinoma. Based on this pattern, we suggest a surveillance protocol after surgery...
Contribution of 11C-choline positron emission tomography/computerized tomography to preoperative staging of advanced transitional cell carcinomaOfer N Gofrit
Department of Urology, Hadassah Hebrew University Medical Center, Jerusalem 91120, Israel
J Urol 176:940-4; discussion 944. 2006..This study examines the contribution of 11C-choline positron emission tomography/computerized tomography to preoperative staging of transitional cell carcinoma...
Does stage T3a renal cell carcinoma embrace a homogeneous group of patients?Ofer N Gofrit
Department of Urology and Pathology, Hadassah University Hospital, Jerusalem, Israel
J Urol 177:1682-6. 2007..Renal cell carcinoma invading the perinephric fat is classified as a stage T3a tumor in the 2002 TNM version. Based on long-term followup we examined the prognostic significance of this definition...
The predictive value of multi-targeted fluorescent in-situ hybridization in patients with history of bladder cancerOfer N Gofrit
Department of Surgery, Section of Urology, University of Chicago Hospitals, Chicago, IL 60637, USA
Urol Oncol 26:246-9. 2008..In this study, we evaluated if UroVysion can predict tumor recurrence in patients with negative cystoscopy and urinary cytology at the time of (FISH) assay...
Adjuvant chemotherapy in lymph node positive bladder cancerOfer N Gofrit
Department of Surgery, Section of Urology, and the Sections of Hematology Oncology and Biostatistics, University of Chicago, Chicago, IL 60637, USA
Urol Oncol 27:160-4. 2009..In this retrospective study, we compare the outcomes of patients with microscopic lymph node positive bladder cancer (pN1 or pN2) treated with radical cystectomy followed by adjuvant chemotherapy and those who declined chemotherapy...
Significance of inflammatory pseudotumors in patients with a history of bladder cancerOfer N Gofrit
Department of Urology, Hadassah Hebrew University Medical Center, Jerusalem, Israel
Urology 69:1064-7. 2007..To study the significance of inflammatory pseudotumor (IPT) in patients with a history of bladder cancer...
Surgeons' perceptions and injuries during and after urologic laparoscopic surgeryOfer N Gofrit
Department of Surgery, Section of Urology, University of Chicago, Chicago, Illinois 60637, USA
Urology 71:404-7. 2008..We undertook this study to assess the prevalence of surgeons' deleterious perceptions or injuries related to laparoscopic urologic surgery...
The Will Rogers phenomenon in urological oncologyOfer N Gofrit
Department of Surgery, Section of Urology, University of Chicago, Chicago, Illinois 60637, USA
J Urol 179:28-33. 2008..Improvement in the prognosis of patient groups due to stage or grade reclassification is called the Will Rogers phenomenon. We determined the significance of the Will Rogers phenomenon in urological oncology...
Predicting the risk of patients with biopsy Gleason score 6 to harbor a higher grade cancerOfer N Gofrit
Department of Surgery, Section of Urology, University of Chicago, Chicago, Illinois 60637, USA
J Urol 178:1925-8. 2007..We analyzed the clinical variables that predict the likelihood of a patient with biopsy Gleason score 6 to harbor a higher grade tumor...
Chemically induced bladder cancer--a sonographic and morphologic descriptionOfrer N Gofrit
Department of Biological Chemistry, Institute of Life Sciences, Hebrew University of Jerusalem, Jerusalem, Israel
Urology 68:231-5. 2006..The major drawback of the model is the difficulty in assessing tumor burden in living animals and at necropsy. The objective of this work was to present simple and accurate solutions for this problem...
Postoperative thrombocytosis as a marker for complications after urologic surgeryOfer N Gofrit
Department of Urology, Hadassah Hebrew University Medical Center, Jerusalem, Israel
Scand J Urol Nephrol 40:161-5. 2006..Objective: To determine whether thrombocytosis after urologic surgery is a random phenomenon or if it is related to postoperative complications...
Lateral decubitus position for percutaneous nephrolithotripsy in the morbidly obese or kyphotic patientOfer N Gofrit
Department of Urology, Hadassah Hebrew University Medical Center, Jerusalem, Israel
J Endourol 16:383-6. 2002..The purpose of this study is to demonstrate a simple way to overcome this difficulty...
Watchful waiting policy in recurrent Ta G1 bladder tumorsOfer N Gofrit
Department of Urology, Hadassah University Medical Center, Jerusalem, Israel
Eur Urol 49:303-6; discussion 306-7. 2006..To determine the outcome of a watchful waiting policy in patients suffering from small, recurrent, papillary bladder tumors...
Thrombocytosis accompanying urinary tract infection suggests obstruction or abscessOfer N Gofrit
Department of Urology, Hadassah Hebrew University Medical Center, Jerusalem, Israel
Am J Emerg Med 24:118-21. 2006..In this study, we determined whether thrombocytosis in patients with upper UTI is a random phenomenon or is related to complications associated with the UTI...
Circulating tumor M2 pyruvate kinase and thymidine kinase 1 are potential predictors for disease recurrence in renal cell carcinoma after nephrectomyBenjamin Nisman
Department of Oncology, Hadassah and Hebrew University Medical Centre, Jerusalem, Israel
Urology 76:513.e1-6. 2010..We explored the association of their preoperative circulating levels with disease recurrence in patients with renal cell carcinoma (RCC)...
Early laparoscopic management of acute postoperative hemorrhage after initial laparoscopic surgeryEdward M Gong
Section of Urology, Department of Surgery, University of Chicago, Chicago, Illinois 60637, USA
J Endourol 21:872-8. 2007..We present our favorable experience with laparoscopic exploration after urologic surgery and suggest guidelines for laparoscopic management of post-laparoscopy bleeding...
Prostate weight: an independent predictor for positive surgical margins during robotic-assisted laparoscopic radical prostatectomyLambda P Msezane
Section of Urology, University of Chicago Pritzker School of Medicine, Chicago, Illinois 60637, USA
Can J Urol 14:3697-701. 2007..In this study, we evaluated whether prostate weight (PW) is an independent predictor of extracapsular extension (ECE) and positive surgical margin (PSM)...
Urothelial cancer of the renal pelvis in percutaneous nephrolithotomy patientsRan Katz
Department of Urology, Hadassah and Hebrew University Hospital, Jerusalem, Israel
Urol Int 75:17-20. 2005..The association between staghorn calculus of the kidney long-standing and urothelial tumors of the renal pelvis is well documented. We describe 3 patients with urothelial cancer in a kidney who underwent percutaneous nephrolithotomy (PCNL)...
Robotic radical prostatectomy learning curve of a fellowship-trained laparoscopic surgeonKevin C Zorn
Section of Urology, Department of Surgery, University of Chicago, Chicago, Illinois, USA
J Endourol 21:441-7. 2007..We evaluated the learning curve of a highly experienced laparoscopic surgeon in achieving expertise with RLRP...
Robotic laparoscopic radical prostatectomy for biopsy Gleason 8 to 10: prediction of favorable pathologic outcome with preoperative parametersSergey A Shikanov
Section of Urology, Department of Surgery, University of Chicago Pritzker School of Medicine, Chicago, IL 60637, USA
J Endourol 22:1477-81. 2008..Stratification of these patients according to preoperative variables was also performed in an attempt to predict organ-confined cancer...
Effect of prostate weight on operative and postoperative outcomes of robotic-assisted laparoscopic prostatectomyKevin C Zorn
Section of Urology, Department of Surgery, University of Chicago Pritzker School of Medicine, Chicago, Illinois 60637, USA
Urology 69:300-5. 2007..The effect of PW on surgical and pathologic outcomes has been reviewed in open and laparoscopic prostatectomy series. Little is known about its effects during RLRP...
Comparison of laparoscopic radical and partial nephrectomy: effects on long-term serum creatinineKevin C Zorn
Section of Urology, Department of Surgery, University of Chicago Pritzker School of Medicine, Chicago, Illinois 60637, USA
Urology 69:1035-40. 2007..5 mg/dL and a two-kidney system. We compared the long-term sCr in patients who were treated with LPN and LRN...
External validation of a nomogram for prediction of side-specific extracapsular extension at robotic radical prostatectomyKevin C Zorn
Minimal Invasive Urology Department, University of Chicago, Chicago, Illinois, USA
J Endourol 21:1345-51. 2007..We tested the accuracy of an ORP-derived nomogram in predicting the rate of extracapsular extension (ECE) in a large RALP cohort...
Bladder neck contracture after robot-assisted laparoscopic radical prostatectomy: evaluation of incidence and risk factors and impact on urinary functionLambda P Msezane
Section of Urology, University of Chicago, Pritzker School of Medicine, Chicago, Illinois, USA
J Endourol 22:377-83. 2008....
A single microfocus (5% or less) of Gleason 6 prostate cancer at biopsy--can we predict adverse pathological outcomes?Alan E Thong
Department of Surgery, Section of Urology, University of Chicago Medical Center, Chicago, Illinois 60637, USA
J Urol 180:2436-40. 2008..Few studies have addressed clinical parameters that predict pathological upgrading or up staging at radical prostatectomy...
Embolization of renal-artery pseudoaneurysm after laparoscopic partial nephrectomy for angiomyolipoma: case report and literature reviewKevin C Zorn
Section of Urology, University of Chicago Pritzker School of Medicine, Chicago, Illinois 60637, USA
J Endourol 21:763-8. 2007..Renal-artery pseudoaneurysm (RAP) is a well-described complication of trauma or percutaneous urologic procedures. Delayed bleeding from an RAP is rare after partial nephrectomy...
Vesical vs. extra-vesical patterns of recurrence after the treatment of urothelial upper tract tumorsSergey Shikanov
Department of Urology, Hadassah Hebrew University Medical Center, Jerusalem, Israel
Urol Oncol 26:266-70. 2008..The objective of this study was to define recurrence patterns after nephro-ureterectomy (NU) for urothelial upper tract tumor (UUTT), and to suggest guidelines for follow-up...
Long-term functional and oncological outcomes of patients undergoing sural nerve interposition grafting during robot-assisted laparoscopic radical prostatectomyKevin C Zorn
Section of Urology, University of Chicago Pritzker School of Medicine, Chicago, Illinois 60614, USA
J Endourol 22:1005-12. 2008..We sought to evaluate the functional, pathologic, and oncologic outcomes of men who underwent robot-assisted sural-nerve graft (SNG) interposition...
Is seminal vesiculectomy necessary in all patients with biopsy Gleason score 6?Ofer N Gofrit
Section of Urology, Department of Surgery, University of Chicago Hospitals, Chicago, Illinois 60637, USA
J Endourol 23:709-13. 2009..In this study we evaluated the oncological benefit of routine removal of the SVs in currently operated patients...
Multi-institutional external validation of seminal vesicle invasion nomograms: head-to-head comparison of Gallina nomogram versus 2007 Partin tablesKevin C Zorn
Section of Urology, University of Chicago Medical Center, Chicago, IL, USA
Int J Radiat Oncol Biol Phys 73:1461-7. 2009..We performed an external validation of the Gallina et al. nomogram and the 2007 Partin tables in a large, multi-institutional North American cohort of men treated with robotic-assisted radical prostatectomy...
Surgical modifications in bladder neck reconstruction and vesicourethral anastomosis during radical retropubic prostatectomy to reduce bladder neck contracturesMarcelo A Orvieto
University of Chicago Hospitals, Chicago, Illinois, USA
Can J Urol 13:3353-7. 2006..CONCLUSIONS: Simple, easily applied modifications to the management of the BN and vesicourethral anastomosis can substantially reduce the incidence of BNC...
Impact of collecting-system repair during laparoscopic partial nephrectomyKevin C Zorn
Section of Urology, University of Chicago Pritzker School of Medicine, Chicago, Illinois 60637, USA
J Endourol 21:315-20. 2007..Deep, infiltrating lesions often necessitate collecting system repair (CSR), mandating further intracorporeal suturing and reconstruction. We compared our experience with LPN where CSR was and was not required after tumor resection...
Robotic-assisted laparoscopic prostatectomy: functional and pathologic outcomes with interfascial nerve preservationKevin C Zorn
Section of Urology, University of Chicago, Pritzker School of Medicine, Chicago, Illinois 60637, United States
Eur Urol 51:755-62; discussion 763. 2007..RLRP has been associated with low morbidity, short convalescence and comparable oncologic and functional outcomes. We report our initial experience of 300 consecutive cases with selective use of interfascial nerve preservation (IFNP)...
Recovery of renal function after complete renal hilar versus artery alone clamping during open and laparoscopic surgeryMarcelo A Orvieto
Section of Urology, Department of Surgery, University of Chicago, 5841 South Maryland Avenue, Chicago, IL 60637, USA
J Urol 177:2371-4. 2007..We evaluated the effect of laparoscopic vs open surgery on the recovery of renal function after clamping of the renal artery and vein, and the artery alone in a solitary kidney porcine model...
Laparoscopic nephrectomy for infected, obstructed and non-functioning kidneysRan Katz
Departments of Urology and General Surgery, Hadassah and Hebrew University Medical Center, Jerusalem, Israel
Surg Laparosc Endosc Percutan Tech 14:340-3. 2004..Laparoscopic nephrectomy was feasible in cases of severe perirenal fibrosis, with an acceptable rate of complications, and may be considered in patients with obstructed, infected, and non-functioning kidneys...
Prostatic urothelial carcinoma: is transurethral prostatectomy necessary before bacillus Calmette-Guérin immunotherapy?Ofer N Gofrit
Section of Urology, University of Chicago Medical Center, Chicago, IL 60637, USA
BJU Int 103:905-8. 2009....
Determination of renal stone composition with dual-energy CT: in vivo analysis and comparison with x-ray diffractionGuy Hidas
Department of Urology, Hadassah Hebrew University Medical Center, POB 12000, Jerusalem, Israel
Radiology 257:394-401. 2010..To preoperatively assess the composition of urinary stones by using dual-energy computed tomography (CT), with postoperative in vitro x-ray diffraction analysis as the reference standard...
Use of the Endoholder device during robotic-assisted laparoscopic radical prostatectomy: the "poor man's" fourth arm equivalentKevin C Zorn
Section of Urology, University of Chicago Pritzker School of Medicine, Chicago, Illinois 60637, USA
J Endourol 22:385-8. 2008..Due to muscle fatigue and inability of the operator to see the operative field, frequent repositioning of the second assistant is often required...
Operative outcomes of upper pole laparoscopic partial nephrectomy: comparison of lower pole laparoscopic and upper pole open partial nephrectomyKevin C Zorn
Section of Urology, Department of Surgery, University of Chicago Pritzker School of Medicine, Chicago, Illinois 60637, USA
Urology 70:28-34. 2007..We report on the technical feasibility and operative outcomes of LPN for upper pole tumors (UPLPN) and lower pole tumors (LPLPN), and open partial nephrectomy (UPOPN) for upper pole tumors...
Evolution of robotic surgery in the treatment of localized prostate cancerKevin C Zorn
Department of Surgery, University of Chicago, 5841 S Maryland Ave, MC6038 J 653, Chicago, IL 60637, USA
Curr Treat Options Oncol 8:197-210. 2007....
Cystectomy in the ninth decade: operative results and long-term survival outcomesFrederick P Mendiola
University of Chicago, Section of Urology, Chicago, Illinois 60637, USA
Can J Urol 14:3628-34. 2007..Herein, we report our experience with radical cystectomy in the elderly population...
Extracorporeal shock wave lithotripsy in prepubertal children: 22-year experience at a single institution with a single lithotriptorEzekiel H Landau
Pediatric Urology Unit, Hadassah Hebrew University Medical Center, Jerusalem, Israel
J Urol 182:1835-9. 2009..The sophistication of percutaneous nephrolithotomy and ureteroscopy challenges the efficacy of ESWL for urolithiasis in prepubertal patients. We evaluated our long-term experience with ESWL in these patients and determined its efficiency...
Outcome analysis of tunica vaginalis flap for the correction of recurrent urethrocutaneous fistula in childrenExekiel H Landau
Pediatric Urology Unit, Hadassah Hebrew University Medical Center, Jerusalem, Israel
J Urol 170:1596-9; discussion 1599. 2003..If the dartos fascia is unavailable and local penile skin is fibrotic as a result of previous operations, a tunica vaginalis flap may be considered. We report our experience with tunica vaginalis flap as an adjunct to fistula repair...
What happened to shockwave lithotripsy during the past 22 years? A single-center experienceGideon Lorber
Department of Urology, Hadassah Hebrew University Hospital Ein Karem, Jerusalem, Israel
J Endourol 24:609-14. 2010..From 1985 to August 2007 we have performed 15,324 shockwave lithotripsy (SWL) treatments using the Dornier HM3 lithotripter. We studied trends in the characteristics of treatments and patients...
[Radical prostatectomy--100 years of evolution]Ofer N Gofrit
Department of Urology, Hadassah University Hospital, Jerusalem, Israel
Harefuah 147:639-42, 660. 2008..Future systems may reveal deep structures to the visualized surface by superimposing MRI images on the surgical field...
Isolated extrarenal papillary carcinoma in a childAlex Shmushkevich
Departments of Pediatric Surgery and Pediatrics, Hadassah University Hospital, Jerusalem, Israel
J Pediatr Surg 37:664-5. 2002..The tumor was found to be papillary adenocarcinoma lying 3 cm apart from a contracted kidney, which was free of tumor. No adjuvant therapy was given. After 50 months of follow-up the child is healthy without evidence of tumor recurrence...
Planned nerve preservation to reduce positive surgical margins during robot-assisted laparoscopic radical prostatectomyKevin C Zorn
Section of Urology, University of Chicago, Pritzker School of Medicine, Chicago, Illinois 60637, USA
J Endourol 22:1303-9. 2008..We evaluated the effect of a protocol for side-specific NP based on preoperative variables on PSM rates and SF outcomes...
Ischemia preconditioning does not confer resilience to warm ischemia in a solitary porcine kidney modelMarcelo A Orvieto
Section of Urology, University of Chicago, Chicago, Illinois 60637, USA
Urology 69:984-7. 2007..To determine whether ischemia preconditioning (IPC) confers resilience to subsequent renal warm ischemia (WI) in a single-kidney porcine model...
Adult stentless laparoscopic pyeloplastyArieh L Shalhav
Section of Urology, University of Chicago Pritzker School of Medicine, Chicago, Illinois 60637, USA
JSLS 11:8-13. 2007..A nonstented pyeloplasty has only been reported in the pediatric literature. Herein, to the best of our knowledge, we report the first published experience with laparoscopic stentless pyeloplasty (LSP) in the adult population...
Case report: conservative management of a large capnothorax following laparoscopic renal surgeryLambda P Msezane
Section of Urology, University of Chicago Pritzker School of Medicine, Chicago, IL 60637, USA
J Endourol 21:1445-7. 2007..We report a case of an asymptomatic, large pneumothorax that was allowed to resolve spontaneously, thus reinforcing the notion of noninvasive capnothorax management incurred during laparoscopic renal surgery...
Use of bone wax during laparoscopic renal ablative procedures: optimizing port utilization and reducing tract-site exposureKevin C Zorn
Section of Urology, University of Chicago Pritzker School of Medicine, Chicago, IL 60637, USA
JSLS 11:453-5. 2007..We describe the use of a hemostatic wax sealant during laparoscopic renal ablative procedures to allow airtight transabdominal access of the treatment probe through a standard 5-mm port...
Bladder neck contracture after robot-assisted laparoscopic radical prostatectomy: evaluation of incidence and risk factors and impact on urinary functionLambda P Msezane
Section of Urology, Pritzker School of Medicine, University of Chicago, 5841 S Maryland Avenue, Chicago, IL 60637, USA
J Endourol 22:97-104. 2008....
Da Vinci robot error and failure rates: single institution experience on a single three-arm robot unit of more than 700 consecutive robot-assisted laparoscopic radical prostatectomiesKevin C Zorn
Section of Urology, University of Chicago Pritzker School of Medicine, Chicago, Illinois 60637, USA
J Endourol 21:1341-4. 2007..Previous reports have suggested that a 2% to 5% device failure rate (FR) be quoted when counseling patients about robot-assisted laparoscopic radical prostatectomy (RLRP). We sought to evaluate our FR on the da Vinci system...
Superiority of the VQZ over the tubularized skin flap and the umbilicus for continent abdominal stoma in childrenEzekiel H Landau
Pediatric Urology Unit, Hadassah Hebrew University Medical Center, Jerusalem, Israel
J Urol 180:1761-5; discussion 1765-6. 2008..We analyzed our results of continent abdominal stomas using the umbilicus and 2 types of lower abdominal stomas, that is the V-quadrilateral-Z technique and the tubular skin flap...
Renal angiomyolipoma with intravascular extension into the inferior vena cava: a case report and review of the literatureGeorge R Schade
Section of Urology, University of Chicago Medical Center, Chicago, Illinois 60637, USA
Can J Urol 15:4012-5. 2008..We present a case report and a description of the surgical management, and provide a review of the literature concerning this rare finding...
Puerperal renal rhabdomyosarcoma: case report and review of the literatureKaren Meir
Department of Pathology, Hadassah-Hebrew University Hospital, Jerusalem, Israel
Urol Oncol 24:40-3. 2006..To our knowledge, this is the first reported case of renal rhabdomyosarcoma during pregnancy. The importance of ultrasound examination in the differential diagnosis of gestational flank pain is discussed...
Fever after shockwave lithotripsy--risk factors and indications for prophylactic antimicrobial treatmentMordechai Duvdevani
Department of Urology, Hadassah Hebrew University Hospital, Jerusalem, Israel
J Endourol 24:277-81. 2010..To identify risk factors for fever after shockwave lithotripsy (SWL) and suggest guidelines for prophylactic antimicrobial treatment...
Bladder neck closure in children: a decade of followupEzekiel H Landau
Pediatric Urology Unit, Hadassah Hebrew University Medical Center, Jerusalem, Israel
J Urol 182:1797-801. 2009..We analyzed our long-term results with bladder neck closure followed at least 10 years for patient compliance with clean intermittent catheterization, upper tract preservation, continence, complications and subsequent procedures...
Hemostatic agents and instruments in laparoscopic renal surgeryLambda P Msezane
Section of Urology, Department of Surgery, University of Chicago Medical Center, Pritzker School of Medicine, Chicago, Illinois, USA
J Endourol 22:403-8. 2008..On the other hand, the cost can rise quickly when multiple agents are employed. Combining suturing and hemostatic technology may be the best strategy...
Continued improvement of perioperative, pathological and continence outcomes during 700 robot-assisted radical prostatectomiesKevin C Zorn
Section of Urology, Department of Surgery, University of Chicago Medical Center, Chicago, Illinois 60637, USA
Can J Urol 16:4742-9; discussion 4749. 2009..However, little is known about the impact of experience on urinary and sexual outcomes. Herein, we review the perioperative, pathological and functional outcomes of our initial 700 consecutive procedures with at least 1 year follow up...
Urethroplasty, by perineal approach, for bulbar and membranous urethral strictures in children and adolescentsOfer Z Shenfeld
Department of Urology, Hadassah Hebrew University Medical Center, Jerusalem, Israel
Urology 71:430-3; discussion 433-4. 2008..It is not as clear whether this also holds true in children, because the published data addressing this question are scant...
Active surveillance of low grade bladder tumorsOfer N Gofrit
Department of Urology, Hadassah University Medical Center, Jerusalem, Israel
Arch Ital Urol Androl 80:132-5. 2008..This study was done in order to evaluate the safety of an active surveillance program, without resection of the tumor, in patients with recurrent small bladder cancer...
Estimating relative renal function from relative parenchymal volume--a feasibility studyGuy Hidas
Department of Urology, Hebrew University Medical Center Jerusalem, Israel
J Endourol 22:2527-30. 2008..Objective: In this study, we evaluated the feasibility of estimating relative kidney function from relative kidney parenchymal volume determined by non-enhanced CT...
