Christopher K. Hwang, Kenneth Ogan, John Pattaras, Viraj A. Master

Canadian Journal of Urology, Vol.17, No.6, pp. 5459-5464, 2010

Abstract Introduction: The detection rate of incidental renal masses is increasing. Historically these masses have been treated with extirpative surgery. Hence, there is little information on the growth rate, metastatic potential, and natural history of renal tumors. Through active surveillance, we study the natural history of renal masses and determine their growth rate and risk for metastasis.
Materials and methods: From 1997 to 2007, active surveillance was offered to select patients with renal masses with no evidence of metastasis. Based on imaging studies from the initial diagnosis to the last follow up, tumor growth rates were determined.
Results: Forty-six… More >

George Rodrigues^1,2, Slav Yartsev^1,3, Glenn Bauman^1,3

Canadian Journal of Urology, Vol.17, No.6, pp. 5453-5458, 2010

Abstract Introduction: Helical tomotherapy (HT) is an innovative approach to the delivery of intensity-modulated radiation therapy which combines the imaging elements of helical computed tomography (CT) with megavoltage linear accelerator treatment. The purpose of this report is to describe our experience with the clinical implementation of HT for genitourinary malignancies.
Materials and methods: All patients treated with a primary genitourinary malignancy were included in this study cohort. Descriptive statistics for various demographic and treatment-related parameters such as patient age, primary site of disease, site of radiotherapy, goal of treatment, dose/fractionation, immobilization and clinical trial enrolment were calculated.
Results: A… More >

Magdy A. Eltabey^1,2, Hammouda Sherif^1,2, Alaa A. Hussein^1,3

Canadian Journal of Urology, Vol.17, No.6, pp. 5447-5452, 2010

Abstract Introduction: This was a prospective, randomized clinical trial to compare the safety, efficacy, and medium-term durability of holmium laser enucleation of the prostate (HoLEP) combined with mechanical morcellation versus standard transurethral resection of the prostate (TURP) for the surgical treatment of patients with bladder outlet obstruction due to benign prostatic hyperplasia (BPH). The patients had prostates that were greater than 30 g and less than 100 g and were followed for 1 year.
Patients and methods: From April 2008 to December 2009, 80 consecutive patients with lower urinary tract obstruction (LUTS) due to BPH were randomized to… More >

Jack Barkin

Canadian Journal of Urology, Vol.17, No.6, pp. 5446-5446, 2010

Abstract This article has no abstract. More >

Adam P. Klausner^1,2, Blake B. Anderson¹, Paul G. Espy¹, Vidal M. Despradel^1,2, B. Mayer Grob^1,2

Canadian Journal of Urology, Vol.17, No.6, pp. 5442-5446, 2010

Abstract Introduction: The purpose of this study was to evaluate the utility of prostate-specific antigen (PSA) screening for prostate cancer after subcapsular prostatectomy.
Materials and methods: Data from 41 consecutive patients who underwent subcapsular prostatectomy at a single institution over a 15 year period were collected retrospectively. Patients were categorized into benign and malignant groups based on a diagnosis of prostate cancer identified in the surgical specimen or during subsequent follow up. Collected data included patient age, preoperative and postoperative PSA values, prostate volume determined by surgical specimen weight, and pathologic diagnosis. Preoperative and postoperative PSA velocities were… More >

Siddhartha Baxi, Charles Catton

Canadian Journal of Urology, Vol.17, No.6, pp. 5436-5441, 2010

Abstract Introduction: Level 1 evidence demonstrates the benefit of postoperative radiotherapy (PORT) for pT3 disease and positive margins. The role of androgen deprivation therapy (ADT) after PORT remains to be defined from results of ongoing randomized trials. This study was undertaken to determine the factors influencing the current use of ADT after PORT amongst Canadian radiation oncologists.
Methods: An institutional survey was emailed to the Genito-urinary Radiation Oncologists Group of Canada (GUROC), designed to assess the likelihood of prescribing ADT in early and delayed PORT scenarios with variations in disease prognosticators. Analysis used descriptive statistics.
Results: Majority (94%) do… More >

Eugene K. Lee¹, Janet Baack¹, Heidi Penn¹, Cecil T. Bromfield², David A. Duchene¹, J. Brantley Thrasher¹, Jeffrey M. Holzbeierlein¹

Canadian Journal of Urology, Vol.17, No.6, pp. 5429-5435, 2010

Abstract Introduction: Active surveillance for prostate cancer is a therapeutic option which is gaining more popularity. Implicit in this approach is careful monitoring to identify those with progression. Criteria for placing patients on active surveillance vary but generally include Gleason sum of 6 or less, prostate-specific antigen (PSA) less than 20, and a small volume of cancer in the biopsy specimen. We review our experience with active surveillance in a veteran population.
Materials and methods: We conducted a retrospective review of patients from the Kansas City Veterans Affairs (KCVA) who met the requirements for active surveillance (Gleason sum… More >

Christian G. Chaussy

Canadian Journal of Urology, Vol.17, No.6, pp. 5425-5427, 2010

Abstract This article has no abstract. More >

Jack Barkin

Canadian Journal of Urology, Vol.17, No.6, pp. 5424-5424, 2010

Abstract This article has no abstract. More >

Calvin Hong Li^a, G. P. Peterson^b,*

Frontiers in Heat and Mass Transfer, Vol.1, No.2, pp. 1-10, 2010, DOI:10.5098/hmt.v1.2.3007

Abstract An experimental investigation of the Critical Heat Flux (CHF) and heat transfer coefficient (HTC) of two-phase heat transfer of de-Ionized (DI) water, pool boiling was conducted using several kinds of sintered copper microparticle porous uniform and modulated structures. The modulated porous structure reached a heat flux of 450 W/cm² and a heat transfer coefficient of 230,000 W/m2K. The thick and thin uniform porous structures achieved CHFs of 290 W/cm² and 227 W/cm² , respectively, and heat transfer coefficients of 118,000 W/m²K and 104,000 W/m²K. The mechanisms for the dramatically improved CHFs and HTCs were identified with assistance of More >