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Daly WC, Mandeville JA, Tronic B, Moinzadeh A. Robotic approach to Giant multiloculated cystadenoma of the prostate: Initial experience. Urol Case Rep 2021; 38:101691. [PMID: 34007788 PMCID: PMC8111595 DOI: 10.1016/j.eucr.2021.101691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 04/22/2021] [Indexed: 11/19/2022] Open
Abstract
Giant multiloculated cystadenoma of the prostate (GMPC) is a rare, massive and benign tumor. Recurrence rates after resection are low but have been recorded. An open approach is most common, with few laparoscopic and no robotic cases reported. We report on a case of a 65-year-old man with a new presentation of a 400 cc cystic prostatic mass thought to be GMPC. This patient underwent what is, to our knowledge, the first reported case of RARP in the treatment of GMPC. A robotic approach to massive GMPC was safe and efficacious in our initial experience.
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Affiliation(s)
- William C. Daly
- Tufts University School of Medicine, Boston, MA, United States
- Corresponding author.
| | | | - Bruce Tronic
- Lahey Clinic Department of Pathology, Burlington, MA, United States
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Moynihan MJ, Mandeville JA, Flacke S, Moinzadeh A. A Novel Technique of Ureteral Stricture Measurement: Impact on Diagnosis and Subsequent Management. J Endourol Case Rep 2020; 6:160-162. [PMID: 33102716 DOI: 10.1089/cren.2019.0145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Background: Appropriate surgical management of ureteral strictures is dependent on not only the etiology of the stricture but also its location and characteristics. Stricture length and location play a significant role in potential surgical options, yet accurate evaluation of these features is limited. We present a case of a complex ureteral stricture where employment of an endoscopic tool in a novel manner helped to better evaluate the patient and provide more precise counseling in the preoperative setting. Case Presentation: A 65-year-old Caucasian man with a history of nephrolithiasis developed a complex ureteral stricture secondary to his calculus disease and prior instrumentation. His stricture was causing obstruction of his left collecting system and the patient was interested in a reconstructive procedure. We present a novel use for a pre-existing endoscopic tool that helped to more accurately delineate the characteristics of his ureteral stricture and improved preoperative planning. Conclusion: Determination of precise stricture length and location is of utmost importance for preoperative patient counseling and surgical planning. Where more sophisticated calibration technology is not available, use of an angiographic catheter during diagnostic endoscopy can improve preoperative assessment and surgical planning for complex ureteral reconstructive procedures.
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Affiliation(s)
- Matthew J Moynihan
- Department of Urology, Lahey Hospital and Medical Center, Burlington, Massachusetts, USA
| | - Jessica A Mandeville
- Department of Urology, Lahey Hospital and Medical Center, Burlington, Massachusetts, USA
| | - Sebastian Flacke
- Department of Interventional Radiology, Lahey Hospital and Medical Center, Burlington, Massachusetts, USA
| | - Alireza Moinzadeh
- Department of Urology, Lahey Hospital and Medical Center, Burlington, Massachusetts, USA
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Abstract
Background: Symptomatic ureteral obstruction from a nonurologic metachronous metastatic malignancy is an unusual phenomenon that is underreported in the literature. This potential etiology for ureteral obstruction warrants consideration by the practicing urologist during a comprehensive evaluation as it may alter prognosis and management options for the afflicted patient. Case Presentation: An 80-year-old Caucasian man with a remote history of prostate cancer and colon cancer presented with new unilateral ureteral obstruction characterized by hydronephrosis, acute kidney injury, and right-sided abdominal pain. A high clinical index of suspicion ultimately leads to the diagnosis of metastatic colon cancer on ureteral biopsy specimen. Conclusion: Evaluation of symptomatic ureteral obstruction in a patient with a significant cancer history should include nonurologic malignant obstruction. Diligence in evaluation of the etiology of the ureteral stricture with repeat biopsies should be undertaken if there is clinical concern. Nephroureterectomy should be part of patient counseling for management of long segment malignant ureteral stricture disease.
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York N, Borofsky MS, Dauw CA, Mandeville JA, Lingeman JE. V6-03 ADVANCED WIRE TECHNIQUES FOR COMPLEX PERCUTANEOUS NEPHROLITHOTOMY. J Urol 2016. [DOI: 10.1016/j.juro.2016.02.403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Bhojani N, Boris RS, Monn MF, Mandeville JA, Lingeman JE. Coexisting prostate cancer found at the time of holmium laser enucleation of the prostate for benign prostatic hyperplasia: predicting its presence and grade in analyzed tissue. J Endourol 2015; 29:41-6. [PMID: 25046691 DOI: 10.1089/end.2014.0359] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVE To determine the incidence of prostate cancer identified on holmium laser enucleation of the prostate (HoLEP) specimens and evaluate variables associated with prostate cancer identification. PATIENTS AND METHODS All patients undergoing HoLEP between 1998 and 2013 were identified. Patients with a known history of prostate cancer were excluded. Multivariable logistic regression assessed variables associated with identification of prostate cancer on HoLEP specimens and Gleason 7 or higher prostate cancer among the malignant cases. The Gleason grade was used as a proxy for disease severity. Each of the models was adjusted for age, preoperative prostate-specific antigen (PSA), and HoLEP specimen weight. RESULTS The cohort comprised 1272 patients, of whom 103 (8.1%) had prostate cancer identified. Prostate cancer cases had higher pre-HoLEP PSA (p=0.06) but lower HoLEP specimen weight (p=0.01). On multivariate logistic regression, age and preoperative PSA were associated with increased odds of prostate cancer being present (p<0.01 each), while increasing HoLEP specimen weight was associated with decreased odds of prostate cancer (p<0.001). Men older than 80 had 20% predicted probability of being diagnosed with prostate cancer. Seventy-eight percent of prostate cancer cases were Gleason 6 or less. The pre-HoLEP PSA was associated with increased adjusted odds of intermediate- or high-grade prostate cancer. CONCLUSION Prostate cancer identified by HoLEP is not uncommon, but is generally a low-risk disease. Older patients with smaller prostate glands have the highest odds of prostate cancer identification.
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Affiliation(s)
- Naeem Bhojani
- 1 Department of Urology, Centre Hospitalier de l'Université de Montréal , Montréal, Québec, Canada
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Bhojani N, Mandeville JA, Hameed TA, Soergel TM, McAteer JA, Williams JC, Krambeck AE, Lingeman JE. Lithotripter outcomes in a community practice setting: comparison of an electromagnetic and an electrohydraulic lithotripter. J Urol 2014; 193:875-9. [PMID: 25305356 DOI: 10.1016/j.juro.2014.09.117] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/29/2014] [Indexed: 12/17/2022]
Abstract
PURPOSE We assessed patient outcomes using 2 widely different contemporary lithotripters. MATERIALS AND METHODS We performed a consecutive case series study of 355 patients in a large private practice group using a Modulith® SLX electromagnetic lithotripter in 200 patients and a LithoGold LG-380 electrohydraulic lithotripter (TRT, Woodstock, Georgia) in 155. Patients were followed at approximately 2 weeks. All preoperative and postoperative films were reviewed blindly by a dedicated genitourinary radiologist. The stone-free rate was defined as no residual fragments remaining after a single session of shock wave lithotripsy without an ancillary procedure. RESULTS Patients with multiple stones were excluded from analysis, leaving 76 and 142 treated with electrohydraulic and electromagnetic lithotripsy, respectively. The stone-free rate was similar for the electrohydraulic and electromagnetic lithotripters (29 of 76 patients or 38.2% and 69 of 142 or 48.6%, p = 0.15) with no difference in the stone-free outcome for renal stones (20 of 45 or 44.4% and 33 of 66 or 50%, p = 0.70) or ureteral stones (9 of 31 or 29% and 36 of 76 or 47.4%, respectively, p = 0.08). The percent of stones that did not break was similar for the electrohydraulic and electromagnetic devices (10 of 76 patients or 13.2% and 23 of 142 or 16.2%) and ureteroscopy was the most common ancillary procedure (18 of 22 or 81.8% and 30 of 40 or 75%, respectively). The overall mean number of procedures performed in patients in the 2 groups was similar (1.7 and 1.5, respectively). CONCLUSIONS We present lithotripsy outcomes in the setting of a suburban urology practice. Stone-free rates were modest using shock wave lithotripsy alone but access to ureteroscopy provided satisfactory outcomes overall. Although the acoustic characteristics of the electrohydraulic and electromagnetic lithotripters differ substantially, outcomes with these 2 machines were similar.
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Affiliation(s)
- Naeem Bhojani
- Indiana University School of Medicine, Indianapolis, Indiana
| | | | - Tariq A Hameed
- Indiana University School of Medicine, Indianapolis, Indiana
| | | | - James A McAteer
- Indiana University School of Medicine, Indianapolis, Indiana
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El Tayeb MM, Bhojani N, Mandeville JA, Boris RS, Rawlings LD, Smoot KJ, Lingeman JE. PD26-03 IMPACT OF 5-ALPHA REDUCTASE INHIBITORS ON ENUCLEATION AND MORCELLATION EFFICIENCY DURING HOLMIUM LASER ENUCLEATION OF THE PROSTATE. J Urol 2014. [DOI: 10.1016/j.juro.2014.02.2090] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Handa RK, Evan AP, Connors BA, Johnson CD, Liu Z, Alloosh M, Sturek M, Evans-Molina C, Mandeville JA, Gnessin E, Lingeman JE. Shock wave lithotripsy targeting of the kidney and pancreas does not increase the severity of metabolic syndrome in a porcine model. J Urol 2014; 192:1257-65. [PMID: 24657667 DOI: 10.1016/j.juro.2014.03.035] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/07/2014] [Indexed: 01/11/2023]
Abstract
PURPOSE We determined whether shock wave lithotripsy of the kidney of pigs with metabolic syndrome would worsen glucose tolerance or increase the risk of diabetes mellitus. MATERIALS AND METHODS Nine-month-old female Ossabaw miniature pigs were fed a hypercaloric atherogenic diet to induce metabolic syndrome. At age 15 months the pigs were treated with 2,000 or 4,000 shock waves (24 kV at 120 shock waves per minute) using an unmodified HM3 lithotripter (Dornier MedTech, Kennesaw, Georgia). Shock waves were targeted to the left kidney upper pole calyx to model treatment that would also expose the pancreatic tail to shock waves. The intravenous glucose tolerance test was done in conscious fasting pigs before lithotripsy, and 1 and 2 months after lithotripsy with blood samples taken for glucose and insulin measurement. RESULTS Pigs fed the hypercaloric atherogenic diet were obese, dyslipidemic, insulin resistant and glucose intolerant, consistent with metabolic syndrome. Assessments of insulin resistance, glucose tolerance and pancreatic β cell function from fasting plasma glucose and insulin levels, and the glucose and insulin response profile to the intravenous glucose tolerance test were similar before and after lithotripsy. CONCLUSIONS The metabolic syndrome status of pigs treated with shock wave lithotripsy was unchanged 2 months after kidney treatment with 2,000 high amplitude shock waves or overtreatment with 4,000 high amplitude shock waves. These findings do not support a single shock wave lithotripsy treatment of the kidney as a risk factor for the onset of diabetes mellitus.
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Affiliation(s)
- Rajash K Handa
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, Indiana.
| | - Andrew P Evan
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Bret A Connors
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Cynthia D Johnson
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Ziyue Liu
- Department of Biostatistics, Indiana University School of Medicine, Indianapolis, Indiana
| | - Mouhamad Alloosh
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Michael Sturek
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Carmella Evans-Molina
- Department of Medicine and Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Indiana
| | - Jessica A Mandeville
- Kidney Stone Institute of Indiana University Health Methodist Hospital, Indianapolis, Indiana
| | - Ehud Gnessin
- Kidney Stone Institute of Indiana University Health Methodist Hospital, Indianapolis, Indiana
| | - James E Lingeman
- Kidney Stone Institute of Indiana University Health Methodist Hospital, Indianapolis, Indiana
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Bhojani N, Boris RS, Mandeville JA, Rawlings LD, Smoot KJ, Lingeman JE. 2172 COEXISTING PROSTATE CANCER FOUND AT THE TIME OF HOLMIUM LASER ENUCLEATION OF THE PROSTATE FOR BENIGN PROSTATIC HYPERPLASIA: PREDICTING ITS PRESENCE AND GRADE IN ANALYZED TISSUE. J Urol 2013. [DOI: 10.1016/j.juro.2013.02.2081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Gnessin E, Mandeville JA, Handa SE, Lingeman JE. The Utility of Noncontrast Computed Tomography in the Prompt Diagnosis of Postoperative Complications After Percutaneous Nephrolithotomy. J Endourol 2012; 26:347-50. [DOI: 10.1089/end.2011.0504] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Ehud Gnessin
- Department of Urology, Indiana University Health, Methodist Hospital, Indianapolis, Indiana
| | - Jessica A. Mandeville
- Department of Urology, Indiana University Health, Methodist Hospital, Indianapolis, Indiana
| | - Shelly E. Handa
- Department of Urology, Indiana University Health, Methodist Hospital, Indianapolis, Indiana
| | - James E. Lingeman
- Department of Urology, Indiana University Health, Methodist Hospital, Indianapolis, Indiana
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Mandeville JA, Boris RS, Bhojani N, Rawlings LD, Smoot KJ, Lingeman JE. 2163 HOLMIUM LASER ENUCLEATION OF THE PROSTATE (HOLEP) FOR GLANDS LARGER THAN 200 GRAMS. J Urol 2012. [DOI: 10.1016/j.juro.2012.02.2336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Bhojani N, Williams JC, Mandeville JA, Lingeman JE. 1938 WITHOUT STONE CULTURE INFECTIOUS KIDNEY ORGANISMS ARE MISIDENTIFIED IN ALMOST 1/4 OF PATIENTS UNDERGOING PERCUTANEOUS NEPHROLITHOTOMY. J Urol 2012. [DOI: 10.1016/j.juro.2012.02.2096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Mandeville JA, Gnessin E, Lingeman JE. Current Understanding of the Role of Randall’s Plaque. Urolithiasis 2012. [DOI: 10.1007/978-1-4471-4387-1_25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
BACKGROUND AND PURPOSE Calculi from patients with musculoskeletal (MS) anomalies who are largely immobile and prone to urinary infections have been traditionally composed primarily of struvite and carbonate apatite. Because of substantial improvements in the care of these patients in recent decades, stone etiology may have shifted from infectious to metabolic. We assessed the composition of renal calculi and metabolic characteristics in a contemporary cohort of patients with MS anomalies who underwent percutaneous nephrolithotomy (PCNL). PATIENTS AND METHODS Retrospective analysis of patients who underwent PCNL between April 1999 and June 2009 and had follow-up 24-hour urine studies was performed. Patients with MS anomalies included spinal cord injury, myelomeningocele, muscular dystrophy, multiple sclerosis, cerebral palsy, or other clinical syndromes causing kyphoscoliosis and contractures. RESULTS Our cohort included 33 patients with MS anomalies and 334 consecutive patients as a control group who underwent PCNL and had metabolic workup. Stones were infectious in etiology in 18.4% and 6.2% in MS and control groups, respectively. Thus, most patients harbored stones of metabolic origin. Metabolic stones in the MS group were composed of 52.7% hydroxyapatite, 10.5% calcium oxalate, 7.9% brushite, 2.6% uric acid, 0% cystine, and 7.9% other. Metabolic stones in the control group were 50.5% calcium oxalate, 16.4% hydroxyapatite, 11.5% brushite, 10.8% uric acid, 4.3% cystine, and 0.3% other. Mean 24-hour urine values for patients with metabolic stones in MS/control groups were volume 2.18/1.87 L/d, pH 6.78/6.05, calcium to creatinine ratio 220/151 mg/g, and oxalate 44.8/39.5 mg/d. CONCLUSIONS Although patients with MS anomalies are traditionally thought to harbor infection-related calculi, most will be found to have calculi of metabolic etiology. The incidence of calcium phosphate stones is high in this group of patients, perhaps reflecting their high urinary pH.
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Affiliation(s)
- Ehud Gnessin
- Department of Urology, Indiana University Health Physicians, Indianapolis, Indiana, USA
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Gnessin E, Mandeville JA, Bledsoe SB, Evan AP, Lingeman JE. V502 ENDOSCOPIC MANAGEMENT OF THE TWO MAJOR PATHWAYS OF STONE FORMATION. J Urol 2011. [DOI: 10.1016/j.juro.2011.02.598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Abstract
PURPOSE OF REVIEW Holmium laser enucleation of the prostate is an endoscopic alternative for the treatment of symptomatic benign prostatic hyperplasia for men with prostates of any size. Holmium laser enucleation of the prostate is superior to other modalities for the treatment of benign prostatic hyperplasia. We present the most current literature on this procedure. RECENT FINDINGS In the 18-month span of this review, there have been a number of articles published on holmium laser enucleation of the prostate. These studies assessed the safety, efficacy, and durability of this procedure. Among these is the largest study to date providing supporting evidence to the long-term efficacy and safety of holmium laser enucleation of the prostate. Other studies provide compelling evidence to suggest that holmium laser enucleation of the prostate can be used in prostates of any size and can provide long-term durable outcomes. SUMMARY Holmium laser enucleation of the prostate represents an effective, well tolerated, and durable procedure to relieve bladder outlet obstruction due to benign prostatic hyperplasia. Holmium laser enucleation of the prostate is a minimally invasive approach which accomplishes complete adenoma removal and, as such, provides unique advantages over other surgical treatments for men with benign prostatic hyperplasia.
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Affiliation(s)
- Ehud Gnessin
- Indiana Clinic-Urology, Indianapolis, Indiana, USA
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Mandeville JA, Neto BS, Vanni AJ, Smith GL, Rieger-Christ KM, Zeheb R, Loda M, Libertino JA, Summerhayes IC. P-cadherin as a prognostic indicator and a modulator of migratory behaviour in bladder carcinoma cells. BJU Int 2008; 102:1707-14. [DOI: 10.1111/j.1464-410x.2008.08115.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Canes D, Mandeville JA, Taylor RJ, Sorcini A, Tuerk IA. Pure Laparoscopic Donor Nephrectomy: 3-Year Experience and Analysis of a Refined Technique to Maximize Graft Function. J Endourol 2008; 22:2275-82; discussion 2282-3. [DOI: 10.1089/end.2008.9722] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- David Canes
- Department of Urology, Lahey Clinic Medical Center, Burlington, Massachusetts
| | | | - Rodney J. Taylor
- Department of Urology, Lahey Clinic Medical Center, Burlington, Massachusetts
| | - Andrea Sorcini
- Department of Urology, Lahey Clinic Medical Center, Burlington, Massachusetts
| | - Ingolf A. Tuerk
- Department of Urology, Lahey Clinic Medical Center, Burlington, Massachusetts
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Smith GL, Neto BS, Rieger-Christ KM, Mandeville JA, Vanni AJ, Libertino JA, Summerhayes IC. PROGNOSTIC SIGNIFICANCE OF ABNORMAL P-CADHERIN EXPRESSION IN TRANSITIONAL CELL CARCINOMA OF THE BLADDER. J Urol 2008. [DOI: 10.1016/s0022-5347(08)60928-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Silva Neto B, Smith GL, Mandeville JA, Vanni AJ, Wotkowicz C, Rieger-Christ KM, Baumgart E, Jacobs MA, Cohen MS, Zeheb R, Loda M, Libertino JA, Summerhayes IC. Prognostic significance of altered p120 ctn expression in bladder cancer. BJU Int 2007; 101:746-52. [PMID: 17922855 DOI: 10.1111/j.1464-410x.2007.07264.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To identify the frequency of change in the expression and localization of p120(ctn) in bladder tumours and its association with clinical outcomes, and to investigate the potential role of p120(ctn) in the migratory and invasive behaviour of bladder carcinoma cells. MATERIALS AND METHODS In all, 425 superficial tumour specimens (Ta, Tis and T1) and 305 invasive (T2-T4) tumour specimens from 534 patients were assembled in 10 tissue microarrays. P120(ctn) immunostaining was scored for intensity and cellular localization and correlated with clinical variables and survival analysis. Knockdown of p120(ctn) was achieved using small-interference RNA (siRNA) followed by the assessment of migration and invasion behaviour in standard in vitro assays. RESULTS The expression levels of p120 catenin inversely correlated with pathological tumour stage (P < 0.001), histological grade (P < 0.001), presence of lymphovascular invasion (P = 0.02) but not lymph node (LN) involvement (P = 0.17). Non-membranous localization of p120(ctn) correlated with stage (P < 0.001), grade (P < 0.001), lymphovascular invasion (P = 0.04) and LN-positive disease (P = 0.02). A low expression level of p120(ctn) was linked to a poor outcome in cancer-specific survival analysis. Knockdown of p120(ctn) using siRNA resulted in a significant reduction in the migration and invasive potential of bladder carcinoma cells. CONCLUSIONS Our findings suggest that p120(ctn) acts as a prognostic factor in bladder tumours and has a primary role to play in the migratory and invasive behaviour of bladder carcinoma cells.
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Affiliation(s)
- Brasil Silva Neto
- Cell and Molecular Biology Laboratory, R.E. Wise M.D. Research and Education Institute, Department of Urology, Lahey Clinic, Burlington, MA 01805, USA
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Vichi FL, Pereira SR, Mori LE, Rufino CB, Mandeville JA, Corso OD, Mellis BS, Taliberti A. [Coronary risk factors in the rural population. I. Physical capacity of rural workers and other professional Brazilian groups, studied by the ergometric cycle]. Arq Bras Cardiol 1976; 29:185-8. [PMID: 962625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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