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https://www.readbyqxmd.com/read/28736748/troubleshooting-for-ureteroscopy-complicated-by-unexpected-guidewire-looping-and-entrapment
#1
Ioannis Efthimiou, Zacharias Chousianitis, Kostadinos Skrepetis
This report presents a bizarre and unusual case of looping and entrapment of a hydrophilic guidewire in the ureter of a 65-year-old woman with a stone in the lower ureter at the time of ureteroscopy and laser lithotripsy. We describe endourology maneuvers to remove the retained guidewire. Looping and entrapment of guidewire is a rare complication that urologists may face when they do not follow the basic principles of guidewire insertion. In that case, successful resolution is based both on surgeon's inspiration to apply the appropriate endourology maneuvers and availability of a variety of endourology tools in the theater...
2017: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/28720364/medical-expulsive-therapy-in-urolithiasis-a-review-of-the-quality-of-the-current-evidence
#2
REVIEW
Andreas Skolarikos, Khurshid R Ghani, Christian Seitz, Brandon Van Asseldonk, Matthew F Bultitude
CONTEXT: Medical expulsive therapy (MET) is widely used to promote spontaneous passage of urinary stones. However, there is conflicting evidence on the actual role of MET. OBJECTIVE: To evaluate the conformance of published randomized controlled trials (RCTs) on MET with the Consolidated Standards for Reporting Trials (CONSORT) criteria, and to clarify the current role of MET in management of urinary stones on the basis of our findings. EVIDENCE ACQUISITION: We carried out an electronic search of the Cochrane Library, PubMed, and Embase databases for RCTs on MET...
February 2017: European Urology Focus
https://www.readbyqxmd.com/read/28704268/safe-discharge-and-outpatient-investigation-of-ureteric-colic-a-retrospective-analysis
#3
Michael Stewart
BACKGROUND: Computed tomography of the kidneys, ureters and bladder is the recommended imaging modality for suspected urolithiasis. Early scanning is advised in guidelines, but there is limited published evidence to support this recommendation. PATIENTS AND METHODS: In a retrospective study, we reviewed patients managed according to a local guideline. Patients without high-risk features were either imaged during their initial visit (if in the daytime) or discharged for outpatient scans...
July 12, 2017: European Journal of Emergency Medicine: Official Journal of the European Society for Emergency Medicine
https://www.readbyqxmd.com/read/28683770/laparoscopic-ureterocalicostomy-for-ureteropelvic-junction-obstruction-in-a-10-year-old-female-patient-a-case-report
#4
Yoko Nishimura, Kimihiko Moriya, Michiko Nakamura, Takeya Kitta, Yukiko Kanno, Hiroki Chiba, Masafumi Kon, Nobuo Shinohara
BACKGROUND: Ureterocalicostomy is indicated mainly in cases with failed pyeloplasty or with a completely intrarenal pelvis. While there have been several case series reported in adults, laparoscopic ureterocalicostomy in pediatric cases has rarely been reported. We report a case of pure laparoscopic ureterocalicostomy for ureteropelvic junction obstruction in an Asian female child. CASE PRESENTATION: A 10-year-old female patient was referred to our hospital due to right high-grade hydronephrosis and a right renal stone, which was detected due to hematuria...
July 6, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28679474/a-comparison-of-micro-perc-and-retrograde-intrarenal-surgery-results-in-pediatric-patients-with-renal-stones
#5
Haluk Sen, Ilker Seckiner, Omer Bayrak, Kazim Dogan, Sakip Erturhan
INTRODUCTION: With advancements in endoscopic surgery, open surgical techniques for urinary system stones have paved the way for the application of less invasive treatment modalities in patients with pediatric kidney stone disease. These treatment options include extracorporeal shock wave lithotripsy (ESWL), percutaneous nephrolithotomy (PCNL), and retrograde intrarenal surgery (RIRS). OBJECTIVE: We aimed to compare the efficacy and safety of RIRS and micro-PCNL techniques in the surgical treatment of kidney stones in pediatric patients...
June 19, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28666793/gaze-based-technology-as-a-tool-for-surgical-skills-assessment-and-training-in-urology
#6
Carolina Diaz-Piedra, Jose M Sanchez-Carrion, Héctor Rieiro, Leandro L Di Stasi
OBJECTIVE: To assess the sensitivity of gaze-based metrics in detecting cognitive demands imposed by surgical procedures. We analyzed urologists' gaze entropy and velocity while performing two standardized high-fidelity simulated stone procedures with different levels of complexity. METHODS: Using a wearable eye-tracker device (mounted onto an eyeglass frame), we measured gaze entropy and velocity in fifteen urologists, members of the Andalusian healthcare system, while they performed an extraction of a stone in the bladder (low complexity) and an extraction of a stone in the lumbar ureter (high complexity)...
June 27, 2017: Urology
https://www.readbyqxmd.com/read/28652165/same-session-bilateral-ureteroscopy-safety-and-outcomes
#7
Johann P Ingimarsson, Marcelino Rivera, John J Knoedler, Amy E Krambeck
OBJECTIVE: To assess the complications and outcomes associated with same-session bilateral ureteroscopy in a tertiary referral center, as same-session bilateral ureteroscopy for stone disease has been critiqued for the theoretical risk of injury to both ureters with subsequent risk to renal function. METHODS: We retrospectively reviewed all cases of bilateral ureteroscopy performed for urolithiasis by a single surgeon at out institution between 2009 and 2014. These were compared to a prospective unilateral ureteroscopy data base RESULTS: There were 117 same-session bilateral ureteroscopic procedures performed in 113 patients totaling 234 ureteroscopies...
June 23, 2017: Urology
https://www.readbyqxmd.com/read/28637368/emergency-ureteral-stone-treatment-score-predicts-outcomes-of-ureteroscopic-intervention-in-acute-obstructive-uropathy-secondary-to-urolithiasis
#8
Timothy Y Tran, Natalia Hernandez Bustos, Avinash Kambadakone, Brian Eisner, Gyan Pareek
INTRODUCTION: Immediate ureteroscopic treatment for patients presenting to the emergency room with symptomatic ureterolithiasis is more commonly being utilized. Recent reports demonstrate good efficacy for emergency ureteroscopy (URS); however, preoperative predictors of treatment success have not been described. In this study, we report our multicenter experience with emergency URS and identify predictors of successful treatment. We also describe the Emergency Ureteral Stone Treatment (EUST) score, which integrates these predictors and stratifies patients into those that are likely and unlikely to have successful treatment...
July 19, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28619091/the-usefulness-of-flexible-cystoscopy-for-preventing-double-j-stent-malposition-after-laparoscopic-ureterolithotomy
#9
Jae-Yoon Kim, Seok-Ho Kang, Jun Cheon, Jeong-Gu Lee, Je-Jong Kim, Sung-Gu Kang
BACKGROUND: The aim of this study was to evaluate the role of flexible cystoscopy in preventing malpositioning of the ureteral stent after laparoscopic ureterolithotomy in male patients. METHODS: From April 2009 to June 2015, 97 male patients with stones >1.8 cm in the upper ureter underwent intracorporeal double-J stenting of the ureter after laparoscopic ureterolithotomy performed by four different surgeons. In the last 50 patients who underwent laparoscopic ureterolithotomy flexible cystoscopy was performed through the urethral route to confirm the position of the double-J stent, while in the first 47 correct positioning of the stent was confirmed through postoperative KUB...
June 15, 2017: BMC Urology
https://www.readbyqxmd.com/read/28611171/pitfalls-of-the-duplex-system-the-mystery-of-the-missing-stone
#10
Donald Kudakwashe Nyanhongo, Satpal Antil, Syed Nasir
A duplex ureter constitutes about 1% of the renal tract anomalies.A 39-year-old man presented with a 4-week history of left loin pain and microscopic haematuria. Investigation with a non-contrast CT KUB revealed a 6 mm non-obstructing calculus in the left distal ureter.Left ureteroscopy and lithotripsy was planned. However, ureteroscopy failed to identify the calculus. A double J ureteric stent was left in situ and the procedure abandoned in favour of further assessment with a CT urogram. Imaging surprisingly showed a left duplex ureter with the calculus in the non-stented ureter...
June 13, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28608734/endovisually-guided-zero-radiation-ureteral-access-sheath-placement-during-ureterorenoscopy
#11
Seyed Mohammad Kazem Aghamir, Alborz Salavati
BACKGROUND: Almost all endourologic procedures use fluoroscopic imaging in some steps, which exposes both the patient and the surgical team to considerable amounts of radiation. Primary reports on results of a simple direct visual endoscopic access sheath placement technique which does not use fluoroscopy at all are presented. MATERIAL AND METHODS: First a semi-rigid ureteroscopy was carried out up to the renal pelvis, then the access sheath (36 cm, 11/13 Fr) without the obturator was placed over a 7...
June 13, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28595936/the-peak-site-of-stone-distribution-in-the-upper-ureter-is-unlikely-the-ureteropelvic-junction-ct-analysis-of-stone-lodging-site-with-respect-to-a-newly-identified-area-of-constriction
#12
Minobu Kamo, Taiki Nozaki, Jay Starkey, Saya Horiuchi, Natsuka Muraishi, Kazunori Hattori, Keiichi Akita
OBJECTIVES: To investigate the relationship between the upper urinary stone distribution and the "crossing point"; an area of relative fixation within the upper ureter at approximately the level where the ureter crosses the gonadal vein. METHODS: We reviewed 298 consecutive patients presenting with acute renal colic, identified upper ureteral stones in computed tomography. For stones located at "renal pelvis and upper ureter", we measured the vertebral level of each renal pelvis, crossing point, and stone...
June 5, 2017: Urology
https://www.readbyqxmd.com/read/28593147/single-large-bladder-stone-in-a-young-male-adult-with-primary-hyperparathyroidism
#13
Omar Halalsheh, Firas Sahawneh, Khaled Altopajee, Abdelrahman Almanasra
Bladder stones are caused when minerals are built up in the bladder, especially if the bladder is incompletely emptied. These stones will pass while they are small. Otherwise, they get stuck to the bladder wall or ureter. If this happens, they gradually gather more mineral crystals, becoming larger over time. Primary hyperparathyroidism is usually caused by a tumor within the parathyroid gland, and elevated calcium levels can cause digestive symptoms, psychiatric abnormalities, bone disease and multiple kidney stones...
July 2017: Urology Case Reports
https://www.readbyqxmd.com/read/28583110/jack-stone-in-the-bladder-case-report-of-a-rare-entity
#14
Duminda Subasinghe, Serozsha Goonewardena, Vickneswaran Kathiragamathamby
BACKGROUND: Jackstone is a bladder stone that has a similar appearance to toy jacks. However review of the English language medical literature revealed only a few previous reports of jackstone calculus. CASE PRESENTATION: We report a case in which a large jackstone calculus was incidentally detected during the evaluation of 67 year old male presenting with lower urinary tract symptoms. X-Ray kidney, ureter, bladder showed a large irregular shaped radio-opaque shadow in the pelvic region...
June 5, 2017: BMC Urology
https://www.readbyqxmd.com/read/28544299/mini-pcnl-for-renal-calculi-does-size-matter
#15
Derek B Hennessey, Ned K Kinnear, Andrew Troy, David Angus, Damien M Bolton, David R Webb
OBJECTIVE: To evaluate the minimally invasive percutaneous nephrolithotomy (MIP) system for renal calculi. PATIENTS AND METHODS: Consecutive patients undergoing mini-percutaneous nephrolithotomy (mPCNL) procedures with the MIP system were enrolled. Patient position, American Society of Anesthesiologists classification, puncture location, stone clearance, postoperative drainage and complications were recorded, and features unique to MIP were noted. RESULTS: In all, 30 patients underwent 32 mPCNL procedures...
May 2017: BJU International
https://www.readbyqxmd.com/read/28499762/ureteral-wall-thickness-as-a-preoperative-indicator-of-impacted-stones-in-patients-with-ureteral-stones-undergoing-ureteroscopic-lithotripsy
#16
Takashi Yoshida, Takaaki Inoue, Naoto Omura, Shinsuke Okada, Shuzo Hamamoto, Hidefumi Kinoshita, Tadashi Matsuda
OBJECTIVE: To evaluate the clinical significance of ureteral wall thickness (UWT) to predict the presence of impacted stones in patients with ureteral stones undergoing ureteroscopic lithotripsy (URSL). MATERIALS AND METHODS: We retrospectively analyzed 130 procedures in patients with ureteral stones who underwent URSL between January 2014 and September 2016. Maximum UWT at the stone site was measured from computed tomography images. Clinical predictors of impacted stones were assessed using univariate and multivariate logistic regression analyses...
August 2017: Urology
https://www.readbyqxmd.com/read/28461995/is-a-ureteral-stent-required-after-use-of-ureteral-access-sheath-in-presented-patients-who-undergo-flexible-ureteroscopy
#17
Gastón Astroza, Manuel Catalán, Lucas Consigliere, Tomás Selman, José Salvadó, Francisco Rubilar
INTRODUCTION: Use of a ureteral access sheath (UAS) within flexible ureteroscopy (fURS) for the management of kidney and ureteral stones has shown improvements in its effectiveness, but it is also associated with increased risk of ureteral injury. Use of ureteral stent (US) after fURS is recommended by some authors, because of its role in reducing postoperative pain and preventing complications. Our objective is to determine if postoperative stenting is necessary in pre-stented patients that underwent fURS using UAS...
2017: Central European Journal of Urology
https://www.readbyqxmd.com/read/28456350/what-are-the-benefits-and-harms-of-ureteroscopy-compared-with-shock-wave-lithotripsy-in-the-treatment-of-upper-ureteral-stones-a-systematic-review
#18
REVIEW
Tamsin Drake, Nikolaos Grivas, Saeed Dabestani, Thomas Knoll, Thomas Lam, Steven Maclennan, Ales Petrik, Andreas Skolarikos, Michael Straub, Christian Tuerk, Cathy Yuhong Yuan, Kemal Sarica
CONTEXT: Extracorporeal shock wave lithotripsy (SWL) and ureteroscopy (URS), with or without intracorporeal lithotripsy, are the most common treatments for upper ureteric stones. With advances in technology, it is unclear which treatment is most effective and/or safest. OBJECTIVE: To systematically review literature reporting benefits and harms of SWL and URS in the management of upper ureteric stones. EVIDENCE ACQUISITION: Databases including Medline, Embase, and the Cochrane library were searched from January 2000 to November 2014...
April 26, 2017: European Urology
https://www.readbyqxmd.com/read/28430785/medical-expulsive-therapy-for-ureter-stone-using-naftopidil-a-multicenter-randomized-double-blind-and-placebo-controlled-trial
#19
Sung Yong Cho, Woong Na, Sang Wook Lee, Min Chul Cho, Jong Jin Oh, Sangchul Lee, Juhyun Park, Soyeon Ahn, Chang Wook Jeong
OBJECTIVES: A prospective, multicenter, randomized, double-blind, placebo-controlled trial evaluated the effects of naftopidil 75 mg for medical expulsive therapy for a single ureter stone. MATERIALS AND METHODS: Patients diagnosed with a ureter stone were prescribed aceclofenac 100 mg or a combined medication of tramadol 37.5 mg and acetaminophen 325 mg. Patients then randomly received either naftopidil 75 mg or placebo. Primary endpoint was the stone passage rate at 14 days after medication...
2017: PloS One
https://www.readbyqxmd.com/read/28427449/urolithiasis-analysis-in-a-multiethnic-population-at-a-tertiary-hospital-in-nairobi-kenya
#20
Francis K Wathigo, Alfred Hayombe, Daniel Maina
BACKGROUND: Urolithiasis is a global problem whose incidence is reported to be on the rise across the world. Previously, urolithiasis was reported as being rare among the indigenous African population but recent data suggest otherwise. This study reviewed the demographic and clinical characteristics of patients with urolithiasis seen at the Aga Khan University hospital Nairobi (AKUHN) as well as the chemical composition of the stones and the modalities of therapy used. METHODS: This was a retrospective study which utilized patients' clinical and laboratory records from 2013 to 2014...
April 20, 2017: BMC Research Notes
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