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Journal of Endourology

Bong Hee Park, Chang Hee Han, Jae Dong Chung, Hyun Hwan Sung, Byong Chang Jeong, Seong Soo Jeon, Deok Hyun Han
OBJECTIVES: To evaluate the outcomes of laparoendoscopic single-site nephrolithotomy(LESS-NL) for symptomatic calyceal diverticular calculi. MATERIALS AND METHODS: From November 2009 to March 2014, 11 cases of LESS-NL with a homemade single-port device for calyceal diverticular calculi were performed by a single experienced laparoscopic surgeon. All patients were assessed at postoperative 1 month, 1 year, and 3 years for symptom-free status and by computed tomography for stone-free and calyceal diverticular obliteration status...
March 1, 2018: Journal of Endourology
Tara Nikonow Morgan, Mohammed Shahait, Avinash Maganty, Michael C Ost, Stephen V Jackman, Timothy D Averch, Michelle Jo Semins
BACKGROUND: To describe the clinical characteristics, infectious and kidney function patterns, and overall outcomes in a cohort of patients with staghorn calculi treated conservatively. METHODS: Staghorn calculi treated non-operatively between January 2009 and January 2017 were identified. A retrospective analysis was completed. RESULTS: Twenty-nine patients were identified with median age of 74 (IQR 61-81). Mean follow-up was 24 months. Fifty nine percent (17/29) had complete staghorn calculi with 6/29 (21%) bilateral...
March 1, 2018: Journal of Endourology
Peter Kronenberg
No abstract text is available yet for this article.
March 1, 2018: Journal of Endourology
Andrew Y Sun, Bryan Hinck, Benjamin R Cohen, Karen Keslar, Robert L Fairchild, Manoj Monga
INTRODUCTION: Intrarenal inflammation has been implicated in the pathogenesis of nephrolithiasis, with prior work showing increased urine levels of IL-6, IL-8, and CCL-2 in stone patients. However, no studies have assessed for inflammation in the renal papillae. We sought to characterize novel papillary tip and urinary biomarkers in stone patients. MATERIALS AND METHODS: Ninety-two patients with nephrolithiasis undergoing percutaneous nephrolithotomy were enrolled...
February 28, 2018: Journal of Endourology
Sachin Yallappa, Tarik Amer, Patrick Jones, Francesco Greco, Thomas Tailly, Bhaskar Somani, Nkem Umez Eronini, Omar M Aboumarzouk
Introduction Ureteric colic has a lifetime prevalence of 10% to 15% and is one of the most common emergency urological presentations. Current EAU recommends conservative management for 'small' (<6mm) ureteral stones if active removal is not indicated. It is important to understand the natural history of ureteric stone disease to help counsel patients with regards to their likelihood of stone passage and anticipated time frame with which they could be safely observed. We aimed to conduct a systematic review to better establish the natural history of stone expulsion...
February 26, 2018: Journal of Endourology
John Roger Bell, Natasza M Posielski, Kristina L Penniston, Meghan G Lubner, Stephen Y Nakada, Perry J Pickhardt
Introduction and Objective Stone size guides treatment decisions, yet there is no standard method for measuring stone size. Prior work has shown significant variability in manual stone measurements (Patel J Urol 2012). We tested a novel stone software program designed to provide an automated and objective comprehensive CT-based stone profile. Methods Urinary stones identified on CT imaging were manually measured to obtain linear size, maximal stone density (in HU). Manual stone volume was calculated using the formula 0...
February 21, 2018: Journal of Endourology
Amihay Nevo, Ronen Holland, Eran Schreter, Ron Gilad, Jack Baniel, Aenov Cohen, David Lifshitz
OBJECTIVES: To determine the accuracy of the surgeon's impression as to the stone free rate at the end of percutaneous nephrolithotomy (PNL), and to evaluate predictors for inaccurate estimation. MATERIALS AND METHODS: A prospective study conducted between 2010 and 2015. Surgeon's impression, categorized as "insignificant Residual fragments (RF)" (<4 mm) or "significant RF" (> 4mm), was recorder at the end of PNL, and was compared with postoperative imaging results, using CT or a combination of US and KUB for radiolucent and radio-opaque stones, respectively...
February 21, 2018: Journal of Endourology
Niall F Davis, Shannon McGrath, Mark Quinlan, Gregory Jack, Nathan Lawrentschuk, Damien M Bolton
PURPOSE: There are no comparative assessments on the environmental impact of endourologic instruments. We evaluated and compared the environmental impact of single-use flexible ureteroscopes with reusable flexible ureteroscopes. PATIENTS AND METHODS: An analysis of the typical life cycle of the LithoVue™ (Boston Scientific) single-use digital flexible ureteroscope and Olympus Flexible Video Ureteroscope (URV-F) was performed. To measure the carbon footprint, data were obtained on manufacturing of single-use and reusable flexible ureteroscopes and from typical uses obtained with a reusable scope, including repairs, replacement instruments, and ultimate disposal of both ureteroscopes...
February 21, 2018: Journal of Endourology
Zhamshid Okhunov, Renai Yoon, Achim Lusch, Kyle Spradling, Melissa Suarez, Kamaljot S Kaler, Roshan Patel, Christina Hwang, Kathryn E Osann, Jiaoti Huang, Thomas K Lee, Jaime Landman
INTRODUCTION: We evaluated and compared 5 currently available energy-based vessel sealing devices (VSD) to assess typical surgical metrics. METHODS: We tested the Caiman 5(C5), Harmonic Scalpel Ace Plus (HA), Harmonic Ace +7 (HA7), LigaSure (LS) and Enseal G2 (ES) on small (2-5mm), medium (5.1-7mm) and large (7.1-9mm) vessels were obtained from 16 Yorkshire pigs. Vessels were randomly sealed and transected. We recorded sealing and transection time, charring and carbonization, thermal spread and bursting pressures (BP)...
February 20, 2018: Journal of Endourology
Francisco Botelho
No abstract text is available yet for this article.
February 17, 2018: Journal of Endourology
Alexander Blair Thomas, Jonathan M Ewald, Isaac Kelly, Matthew Pierce, Jerry Thomas, Braden Mattison, Benjamin West, David Ruckle, Mohamed Keheila, Samuel R Abourbih, Reed Krause, Vi Am Dinh, D Daniel Baldwin, D Duane Baldwin
PURPOSE: Ultrasound guidance during renal access and mass biopsy reduces radiation exposure, but can be technically challenging. A needle guidance system might simplify these procedures. The purpose of this randomized crossover trial was to compare conventional and computer-assisted ultrasound needle guidance systems for renal access and mass biopsy. MATERIALS AND METHODS: Seventy-one subjects were randomized to perform renal access or mass biopsy on a phantom using conventional and computer-assisted ultrasound guidance in a crossover study design...
February 17, 2018: Journal of Endourology
(no author information available yet)
No abstract text is available yet for this article.
February 16, 2018: Journal of Endourology
Andrew Hung, Jian Chen, Zhengping Che, Tanachat Nilanon, Anthony Jarc, Micha Titus, Paul Oh, Inderbir Singh Gill, Yan Liu
Purpose Surgical performance is critical for clinical outcomes. We present a novel machine learning (ML) method of processing automated performance metrics (APMs) to evaluate surgical performance and predict clinical outcomes after robot-assisted radical prostatectomy (RARP). Methods We trained three ML algorithms utilizing APMs directly from robot system data (training material) and hospital length of stay (LOS; training label) (≤2 days and >2days) from 78 RARP cases, and selected the algorithm with the best performance...
February 16, 2018: Journal of Endourology
Ralph V Clayman, Roshan M Patel, Margaret S Pearle
In this review, a simplified straightforward algorithmic approach to the metabolic evaluation and treatment of the at-risk or recurrent urolithiasis patient is provided. Eight diagnoses and eight therapies are provided which cover over 95% of renal stone disease.
February 14, 2018: Journal of Endourology
Shuji Isotani
No abstract text is available yet for this article.
February 14, 2018: Journal of Endourology
Victor Srougi, Paulo R Moscardi, Giovanni Scala Marchini, Ricardo Haidar Berjeaut, Fabio Cesar Miranda Torricelli, José Luiz Borges Mesquita, Miguel Srougi, Eduardo Mazzucchi
PURPOSE: To investigate risk factors for septic shock and death in patients with obstructive pyelonephritis due to ureteral stone, who underwent urinary tract decompression. PATIENTS AND METHODS: We prospectively enrolled patients who presented at the emergency department of our institution with clinical signs of pyelonephritis, systemic inflammatory reaction syndrome (SIRS) and obstructive ureteral stone confirmed by computed tomography scan. Forty patients that underwent urinary tract decompression were included...
February 14, 2018: Journal of Endourology
Peter Wang
No abstract text is available yet for this article.
February 14, 2018: Journal of Endourology
Thomas Lendvay
No abstract text is available yet for this article.
February 14, 2018: Journal of Endourology
J Stuart Wolf
No abstract text is available yet for this article.
February 14, 2018: Journal of Endourology
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