David E. Rapp^1,3, Nada L. Wood¹, Matthew Bassignani¹, Luke Gergoudis², Sarah Caulkins³, Eugene V. Kramolowsky^1,3

Canadian Journal of Urology, Vol.23, No.5, pp. 8441-8445, 2016

Abstract Introduction: Non-contrast CT (NCT) is commonly used to evaluate flank pain (FP). We sought to evaluate incidence of ureteral calculi on NCT in patients with FP, and to determine if clinical variables are associated with higher detection rates.
Materials and methods: Retrospective review identified 613 patients undergoing NCT for FP. Patient clinical data, NCT findings, and intervention were analyzed. Focus was placed on variables commonly associated with urolithiasis (V_stone), comprising hematuria, nausea/vomiting, and prior stone history. Statistical analysis was performed to identify risk of ureteral stones based on number and type of V_stone.
Results: No stone disease was identified… More >

Mark R. Helmers, Mark W. Ball, Michael A. Gorin, Phillip M. Pierorazio, Mohamad E. Allaf

Canadian Journal of Urology, Vol.23, No.5, pp. 8435-8440, 2016

Abstract Introduction: Robotic-assisted laparoscopic radical nephrectomy (RRN) is an increasingly utilized alternative to laparoscopic radical nephrectomy (LRN); however, there is little data on comparative effectiveness and cost of these procedures. We analyzed perioperative outcomes and hospital charge differences among patients undergoing laparoscopic radical nephrectomy (LRN) and robotic radical nephrectomy (RRN).
Materials and methods: Our institutional renal mass registry was queried for patients who underwent either LRN or RRN from 2010 to 2014. Demographic, perioperative outcomes and hospital charge data were compared between surgical approaches.
Results: Overall, 319 minimally invasive radical nephrectomies were performed during the study period. Of these,… More >

Maria Voznesensky¹, Christopher Mutter², Matthew Hayn¹, Thomas Kinkead¹, Brian Jumper¹

Canadian Journal of Urology, Vol.22, No.5, pp. 7995-7999, 2015

Abstract Introduction: Circumcision is the most commonly performed surgical procedures in male children. Maine is one of 18 states in the United States which does not pay for neonatal circumcisions.
The aim of this study was to perform outcomes and cost analysis of a sutureless circumcision technique versus circumcision using sutures. Specifically, we evaluated Dermaflex (2-octyl cyanoacrylate, 2-OCA) surgical glue circumcision as a cost effective, faster, and safe alternative to traditional suture circumcision.
Materials and methods: Our study was a nonrandomized series. We collected the operative details prospectively, abstracted clinical outcomes retrospectively, and performed data analysis retrospectively. One… More >

Michael A. Gorin, Max Kates, Jeffrey K. Mullins, Phillip M. Pierorazio, Brian R. Matlaga, Mark P. Schoenberg, Trinity J. Bivalacqua

Canadian Journal of Urology, Vol.21, No.1, pp. 7102-7107, 2014

Abstract Introduction: The objective of this study was to evaluate the impact of hospital case volume on perioperative outcomes and costs of radical cystectomy (RC) after controlling for differences in patient case mix.
Materials and methods: The Maryland Health Services Cost Review Commission database was queried for patients who underwent an open RC between 2000 and 2011. Patients were divided into tertiles based on hospital case volume. Groups were compared for differences in length of intensive care unit (ICU) stay, length of total hospital stay, rate of in-hospital deaths and procedure-related costs.
Results: In total, 1620 patients… More >

Anup Vora, Daniel Marchalik, Hanaa Nissim, Keith Kowalczyk, Gaurav Bandi, Kevin McGeagh, John Lynch, Krishnan Venkatesan, Reza Ghasemian, Jonathan Hwang, Mohan Verghese

Canadian Journal of Urology, Vol.21, No.2, pp. 7222-7227, 2014

Abstract Introduction: Radical cystectomy is associated with significant morbidity and cost, with rates of gastrointestinal complications as high as 30%. Alvimopan is a mu opioid receptor antagonist that has been shown in randomized-control trials to accelerate gastrointestinal recovery in patients undergoing bowel resection with primary anastamosis. We report our experience with gastrointestinal recovery for patients undergoing cystectomy with urinary diversion treated with alvimopan and cost benefit associated.
Materials and methods: Between January 2008 and October 2012, 80 patients underwent radical cystectomy with urinary diversion at two institutions. Forty-two patients in our study did not receive alvimopan preoperatively.… More >

P. Sittisart^1,*, M.M. Hyland¹, M.A. Hodgson¹, C. Nguyen², A. Fernyhough³

Journal of Renewable Materials, Vol.2, No.4, pp. 264-269, 2014, DOI:10.7569/JRM.2014.634123

Abstract A series of composites based on polypropylene with different loadings of nickel-coated cellulose fi bres (NCCF) were fabricated with the aim to create a composite suitable for EMI shielding and/or electrostatic discharge application. Various properties such as EMI shielding effectiveness, surface resistivity, volume resistivity and fl exural strength were characterised according to ASTM standard. Both surface and volume resistivity suggested that the electrical conductivity of NCCF was not high enough and the composite remains electrically non-conducting up to 40 wt% loading of NCCF. However, nickel particles were still able to shield electromagnetic radiation regardless of More >

Yaohui Li^1,2, Yizhong Wu^1,3, Zhengdong Huang¹

CMES-Computer Modeling in Engineering & Sciences, Vol.97, No.4, pp. 323-357, 2014, DOI:10.3970/cmes.2014.097.323

Abstract Kriging model, which provides an exact interpolation and minimizes the error estimates, is a highly-precise global approximation model in contrast with other traditional response surfaces. Therefore, sequential exploratory experimental design (SEED) with Kriging model is crucial for globally approximating a complex black-box function. However, the more sampling points are, the longer time it would take to update the Kriging model during sequential exploratory design. This paper, therefore, proposes a new construction method called incremental Kriging method (IKM) to improve the constructing efficiency with just a little and controllable loss of accuracy for Kriging model. The… More >

Susan S. Garfield¹, Meghan B. Gavaghan¹, Shannon O. Armstrong¹, J. Stephen Jones²

Canadian Journal of Urology, Vol.20, No.2, pp. 6682-6689, 2013

Abstract Introduction: Several studies, including the recently published phase III study by Stenzl and colleagues, have demonstrated that hexaminolevulinate hydrochloride, when used with blue light fluorescence cystoscopy, improves detection of non-muscle invasive bladder tumors compared to white light cystoscopy and transurethral resection of bladder tumors (TURB) alone.
Materials and methods: The objective of this study was to conduct a detailed assessment of the cost-effectiveness of using hexaminolevulinate hydrochloride with blue light cystoscopy as an adjunct to white light versus white light cystoscopy alone at the time of initial TURB in the United States. A probabilistic decision tree model, More >

Leonard G. Gomella

Canadian Journal of Urology, Vol.20, No.5, pp. 6888-6888, 2013

Abstract This article has no abstract. More >

Thomas W. Jarrett

Canadian Journal of Urology, Vol.20, No.6, pp. 6997-6997, 2013

Abstract This article has no abstract. More >