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Journal of Endourology

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https://www.readbyqxmd.com/read/28340540/use-of-the-moses-technology-to-improve-holmium-laser-lithotripsy-outcomes-a-preclinical-study
#1
Mostafa M Elhilali, Shadie Badaan, Ahmed Ibrahim, Sero Andonian
OBJECTIVE: To evaluate in vitro and in vivo effects of Moses technology in Holmium laser and to compare it with the Regular mode in terms of lithotripsy efficiency and laser-tissue interactions. METHODS: The Lumenis® PulseTM P120H holmium laser system together with Moses D/F/L fibers were used to compare Regular mode with the Moses modes in stone retropulsion using a high-speed camera, and stone ablation efficiency. In addition, a porcine ureteroscopy model was used to assess stone fragmentation and dusting as well as laser-tissue interaction with the ureteral wall...
March 24, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28340536/comparison-of-broad-vs-narrow-focal-width-lithotripter-fields
#2
Yifei Xing, Tony T Chen, W Neal Simmons, Georgy Sankin, F Hadley Cocks, Michael Eric Lipkin, Glenn M Preminger, Pei Zhong
Objective To investigate the impact of lithotripter focal width on stone fragmentation. Materials and Methods A modified reflector was used to reduce -6 dB beam size of the HM3 lithotripter while increasing concomitantly peak pressure. Fragmentation in vitro was assessed with modified and original reflectors using BegoStone phantoms. A membrane holder was used to mimic lithotripsy in vivo and a matrix holder was used to assess variations of fragmentation power in the focal plane of the lithotripter field. Stone fragmention in vivo produced by the two reflectors was further compared in a swine model...
March 24, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28340535/continuation-of-renin-angiotensin-aldosterone-inhibitors-does-not-impact-renal-function-among-patients-undergoing-percutaneous-nephrolithotomy
#3
Nishant D Patel, Benjamin R Cohen, Shubha De, Ganesh Kartha, Ina Li, Carl Sarkissian, Juan Camilo Calle, Manoj Monga
OBJECTIVE:   In the perioperative period, renin-angiotensin-aldosterone system (RAAS) inhibitors may result in cardiovascular and renal functional changes. We sought to determine the acute and chronic renal functional and blood pressure effects of continuing or withdrawing angiotensin converting enzyme inhibitors (ACE-I) and angiotensin receptor blockers (ARB) after PCNL. MATERIALS AND METHODS:   This was a retrospective review of all patients undergoing PCNL at our institution from 2002-2013...
March 24, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28338351/worldwide-impact-of-warmer-seasons-on-the-on-the-incidence-of-renal-colic-and-kidney-stone-disease-ksd-evidence-from-a-systematic-review-of-literature
#4
Robert Geraghty, Silvia Proietti, Olivier Traxer, Matthew Archer, Bhaskar K Somani
INTRODUCTION: Several studies have examined the link between temperature or monthly-seasonal variations and urolithiasis. The majority of these studies have demonstrated a link between higher ambient monthly temperatures and the incidence of renal colic and kidney stone disease (KSD). However a worldwide trend on this association has not been explored and we perform a systematic review to examine the effect of seasonal variations on renal colic and KSD. MATERIALS AND METHODS: A systematic review of literature over a 26-year period (1990-2017) was conducted on all studies reporting on the effect of seasonal variations and its link to KSD...
March 24, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28330382/algorithm-based-motion-magnification-for-video-processing-in-urological-laparoscopy
#5
Fabian Adams, Reto Schoelly, Daniel Schlager, Martin Schoenthaler, Dominik Stefan Schoeb, Konrad Wilhelm, Simon Hein, Ulrich Wetterauer, Arkadiusz Miernik
PURPOSE: Minimally invasive surgery is in constant further development and has replaced many conventional operative procedures. If vascular structure movement could be detected during these procedures, it could reduce the risk of vascular injury and conversion to open surgery. The recently proposed motion-amplifying algorithm Eulerian Video Magnification (EVM) has been shown to substantially enhance minimal object changes in digitally recorded video that is barely perceptible to the human eye...
March 23, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28326800/safety-feasibility-and-efficacy-of-bilateral-synchronous-percutaneous-nephrolithotomy-for-bilateral-stone-disease-evidence-from-a-systematic-review
#6
Patrick Jones, Blessing Dhliwayo, Bhavan Prasad Rai, Moeketsi Mokete, Ramachandran Amitharaj, Omar M Aboumarzouk, Bhaskar K Somani
INTRODUCTION: With the evolution of endourologic technology, bilateral synchronous percutaneous nephrolithotomy (BS-PCNL) has emerged as a potentially practical intervention for patients with bilateral lithiasis. Although tradition has favored a staged approach, an increasing number of original studies have reported their experiences with the synchronous approach. MATERIALS AND METHODS: A Cochrane style search was performed after development of a sensitive and predefined search strategy...
March 22, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28326799/glomerular-loss-after-renal-radiofrequency-ablation-are-comparable-to-30-minutes-of-warm-ischemia
#7
Leonardo A S Abreu, José A Damasceno-Ferreira, Waldemar S Costa, Marco Aurélio Pereira-Sampaio, Francisco José Sampaio, Diogo B de Souza
PURPOSE: To compare, with stereological methods, the glomerular loss in kidneys submitted to radiofrequency ablation (RFA) or warm ischemia. METHODS: Twenty-six male pigs were divided into three groups. Eight animals were allocated in the sham group, which was submitted to laparoscopic dissection of the left renal hilum, without renal ischemia. Eight animals were allocated in the ischemia group, which had the left renal hilum clamped for 30 minutes under laparoscopic access...
March 22, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28326796/surgical-treatment-of-4-10%C3%A2-cm-renal-cell-carcinoma-a-survey-of-the-lions-and-gazelles
#8
Sara L Best, Michael Blute, Brian Lane, E Jason Abel
INTRODUCTION: The decision between partial nephrectomy (PN) and radical nephrectomy (RN) may be influenced by training, practice type, or location. We sought to evaluate current opinions about the optimal management of 4-10 cm renal-cell carcinoma (RCC). MATERIALS AND METHODS: A survey was emailed to ∼2500 Endourologic Society and Society of Urologic Oncology members regarding training, practice setting, and interest in clinical trials in addition to questions about four patient scenarios...
March 22, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28326794/urothelial-tumors-and-dual-band-imaging-a-new-concept-in-confocal-laser-endomicroscopy
#9
Arnaud Marien, Aurélien Rock, Khaled El Maadarani, Catherine Francois, Pierre Gosset, Brigitte Mauroy, Jean-Louis Bonnal
OBJECTIVES: Confocal laser endomicroscopy (CLE) uses a low-energy laser light source to obtain microscopic histology images of bladder tissue exposed to a fluorescent dye. To evaluate the feasibility of using CLE with two fluorophores: fluorescein (FLUO) and hexylaminolevulinate (HAL) to determine histologic and cytologic bladder cancer criteria. METHODS: Patients eligible for HAL-photodynamic diagnosis-assisted transurethral resection of bladder tumor were included...
March 22, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28322594/development-of-endoscopic-diagnosis-and-treatment-for-chronic-unilateral-hematuria-35-years-experience
#10
Ryuta Tanimoto, Hiromi Kumon, Demetrius H Bagley
PURPOSE: Chronic unilateral hematuria (CUH) is also called lateralizing essential hematuria, benign essential hematuria, and benign lateralizing hematuria, which was defined as intermittent or continuous gross hematuria that cannot be diagnosed with standard radiology and hematology studies, together with unilateral bloody efflux by cystoscopy. CUH is rare, but sometimes confused with malignancy or life threatening hemorrhage. Therefore, it can cause considerable anxiety to not only patients but also urologists...
March 21, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28322584/editorial-comment-on-end-2016-0851-ra-r1
#11
Sara L Best
In their meta-analysis, Jones and colleagues found that bilateral synchronous PCNL was associated with similar stone free outcomes and complication rates as those reported for unilateral PCNL. The authors do an excellent job in emphasizing that BS-PCNL has primarily been reported by high volume centers. Previous investigations have demonstrated that PCNL outcomes are better and complication rates are lower at high volume centers.(1) Institutions that perform few PCNLs should be cautious about performing simultaneous bilateral procedures as their complication rate may be higher and exposing the patient to acute kidney injury could prove devastating...
March 21, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28322574/image-guided-research-in-the-clinic-to-reduce-surgical-margins
#12
Hon S Leong
Accidental tumor incision is uncommon but understanding its impact on surgical outcomes is still limited. Enokida and colleagues explore the possibility of tumor cell dissemination via surgical tool contamination. In their report, accidental tumor incision in pre-clinical models does result in the deposition of viable tumor cells onto surgical instruments such as scissors but they also counter this contamination with the use of electrical current to sterilize the same instrument mid-way in the operation. These results illustrate the usefulness of visual observation and the novel approach of sterilization peri-operatively...
March 21, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28318298/factors-associated-with-compliance-to-increased-fluid-intake-and-urine-volume-following-dietary-counseling-in-first-time-kidney-stone-patients
#13
Aziz Khambati, Richard S Matulewicz, Kent T Perry, Robert B Nadler
OBJECTIVE: Increasing fluid intake to achieve a urine volume (UV) of >2.5 L/day decreases stone events. We assessed compliance rates and demographic and clinical variables associated with increased fluid intake and UV in patients with urolithiasis following dietary counseling. MATERIALS AND METHODS: In a retrospective study, patients with a low baseline UV (<2.5 L/day) on an initial 24-hour urine collection during metabolic stone evaluation were identified between 2010 and 2015...
March 20, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28306333/efficacy-and-safety-of-naftopidil-in-the-medical-expulsion-therapy-for-distal-ureteral-stone-a-systematic-review-and-meta-analysis
#14
Jun Li, Zhuang Tang, Liang Gao, Jinhong Li, Feng Qin, Jiuhong Yuan
PURPOSE: The selective α-adrenoceptor blocker is widely used as a cost-effective treatment option for medical expulsive therapy (MET) of ureteral stones. In this review, we aimed to assess the efficacy and safety of naftopidil for MET compared with control or tamsulosin. METHODS: A systematic literature search was performed in PubMed, Cochrane Library, Embase, and Google Scholar to identify randomized controlled trials that compared naftopidil with either control or tamsulosin for the management of distal ureteral stones...
March 17, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28306331/intraoperative-radiographic-determination-of-ureteral-length-as-a-method-of-determining-ideal-stent-length
#15
Keith Barrett, Daniela Ghiculete, Robert J Sowerby, Monica Farcas, Kenneth T Pace, Richardson John D'Arcy Honey
INTRODUCTION: Accurate determination of ureteral length (UL) and appropriate stent length remains a challenge. The objective of this study was to describe an intraoperative technique to measure UL and determine appropriate stent length, and to compare this technique with other methods of determining appropriate stent length. METHODS: Patients undergoing ureteroscopy requiring postoperative stenting and who had a preoperative CT were prospectively identified. Gender, age, height, body mass index, L1 to L5 lumbar height on CT, and surgeon's estimate of UL were recorded...
March 17, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28306329/the-effect-of-listening-to-music-during-percutaneous-nephrostomy-tube-placement-on-pain-anxiety-and-success-rate-of-procedure-a-randomized-prospective-study
#16
Nurullah Hamidi, Erdem Ozturk
PURPOSE: To evaluate the effect of listening to music on pain, anxiety, and success of procedure during office-based percutaneous nephrostomy tube placement (PNTP). MATERIALS AND METHODS: One hundred consecutive patients (age >18 years) with hydronephrosis were prospectively enrolled in this study. All patients were prospectively randomized to undergo office-based PNTP with (Group I, n = 50) or without music (Group II, n = 50). Anxiety levels were evaluated with State Trait Anxiety Inventory...
March 17, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28306328/letter-to-the-editor
#17
Kristina L Penniston, Stephen Y Nakada
No abstract text is available yet for this article.
March 17, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28292209/risks-and-benefits-of-postoperative-double-j-stent-placement-after-ureteroscopy-urs-results-from-the-clinical-research-office-of-endourological-society-urs-global-study
#18
Ahmet Yaser Muslumanoglu, Sven Fuglsig, Antonio Frattini, Gaston Labate, Robert B Nadler, Alexey Martov, Carson Wong, Jean J M C H de la Rosette
PURPOSE: Double-J stent placement following stone removal by URS is common and recommended in many cases but debatable in others. In this study the risks and benefits of postoperative double-J stent placement in URS stone treatment procedures undertaken in current clinical practice, are examined. MATERIALS AND METHODS: The CROES URS is a prospective, observational, international, multicentre study in which patients who were candidates for URS as primary treatment or after failure of prior treatment for ureteral stones and renal stones...
March 14, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28292198/prospective-analysis-of-a-complete-retrograde-ureteroscopic-technique-with-holmium-laser-stent-cutting-for-management-of-encrusted-ureteral-stents
#19
Alexandre Thomas, Jonathan Cloutier, Luca Villa, Julien Letendre, Achilles Ploumidis, Olivier Traxer
PURPOSE: To propose and evaluate a new endoscopic technique using only a retrograde ureteroscopic approach for the removal of heavily encrusted ureteral stents. METHODS: Data from 51 consecutive patients with encrusted and retained ureteral stents were prospectively collected. Description of the successive steps of surgery is detailed. The Holmium-YAG laser properties offer the opportunity for fragmentation of stent-attached encrustation and the ability to cut the stent itself...
March 14, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28292191/upper-calyx-accessibility-through-a-lower-calyx-access-is-not-influenced-by-morphometric-and-clinical-factors-in-supine-percutaneous-nephrolithotomy
#20
Mario Sofer, Yazeed Barghouthy, Yuval Bar-Yosef, Ishay Mintz, Silvia Proietti, Ronit Tsemah, Amir Horkin, Haim Matzkin, Guido Giusti
OBJECTIVE: To assess whether morphometric and clinical parameters influence accessibility to the upper calyx through a lower calyx tract during supine percutaneous nephrolithotomy (SPCNL). METHODS: Data for 114 consecutive SPCNLs performed between 6/2014-3/2016 in an academic medical center were analyzed. Successful approachability was defined as rigid nephroscopic access to the upper calyx introduced through a lower calyx access as attested by direct visualization of the upper calyx papillae and position of the nephroscope on intraoperative pyelography...
March 14, 2017: Journal of Endourology
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