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Renal calculi

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https://www.readbyqxmd.com/read/29349571/fluoroscopy-free-ultrasonography-guided-percutaneous-nephrolithotomy-in-pediatric-patients-a-single-center-experience
#1
Akbar Nouralizadeh, Farzaneh Sharifiaghdas, Hamid Pakmanesh, Abbas Basiri, Mohammad Hadi Radfar, Mohammad Hossein Soltani, Mahmoodreza Nasiri, Esmaeil Rezghi Maleki, Emal Lesha, Mohammad Ghasemi-Rad, Behzad Narouie
OBJECTIVES: To present the safety and efficacy of fluoroscopy-free ultrasound-guided PCNL for the treatment of renal calculi in pediatric patients of all ages. METHODS: 30 children with mean age of 5 years (6 months-12 years) underwent totally ultrasound-guided PCNL from March 2013 to August 2016. The pyelocalyceal system was punctured in prone position using only ultrasonography guidance, and the tract was dilated using a single shot dilation technique. No fluoroscopy was used during any of the stages of renal access...
January 18, 2018: World Journal of Urology
https://www.readbyqxmd.com/read/29343912/lateral-percutaneous-nephrolithotomy-a-safe-and-effective-surgical-approach
#2
Jonathan Jian Wei Gan, Jaslyn Ju Lia Gan, Jasmine Ju Hsien Gan, Kim Tiong Lee
Introduction: Percutaneous nephrolithotomy (PCNL) is traditionally performed with the patient in the prone position for large renal calculi. However, anesthetic limitations exist with the prone position. Similarly, the supine position is associated with poorer ergonomics due to the awkward downward position of the renal tract, a smaller window for percutaneous puncture, and a higher risk of anterior calyx puncture. This study aimed to demonstrate the feasibility and safety of lateral-PCNL in managing large renal calculi without the disadvantages of prone and supine positions...
January 2018: Indian Journal of Urology: IJU: Journal of the Urological Society of India
https://www.readbyqxmd.com/read/29322602/outcomes-of-more-than-1-000-percutaneous-nephrolithotomies-and-validation-of-guy-s-stone-score
#3
Petronio Augusto de Souza Melo, Fabio Carvalho Vicentini, Artur Agostinho Beraldi, Marcelo Hisano, Claudio Bovolenta Murta, Joaquim Francisco de Almeida Claro
OBJECTIVE: To present the experience with percutaneous nephrolithotomy (PCNL) at a high-volume Brazilian centre and to evaluate Guy's stone score (GSS) as a predictor of success and complications in PCNL. PATIENTS AND METHODS: We prospectively evaluated patients who underwent PCNL between June 2011 and October 2016. Indications for PCNL included renal stones larger than 2 cm and calculi smaller than 2 cm in which first-line techniques had failed. All patients underwent a complete pre-operative evaluation, including non-contrast-enhanced abdominal computed tomography (CT)...
January 11, 2018: BJU International
https://www.readbyqxmd.com/read/29289639/bone-in-the-stone
#4
Tarun Jindal
Heterotrophic bone formation in the pelvicalyceal system acting as a nidus for stone formation is a rare phenomenon. We report a case of a 16 years old female who, during percutaneous nephrolithotomy for right renal calculi, was found to have bone attached to the renal pelvic epithelium over which stone formation had occurred.
December 28, 2017: Urology
https://www.readbyqxmd.com/read/29279871/primary-vaginal-calculus-in-a-woman-with-disability-case-report-and-literature-review
#5
Pietro Castellan, Michele Nicolai, Piergustavo De Francesco, Luciano Di Tizio, Roberto Castellucci, Maida Bada, Michele Marchioni, Luca Cindolo, Luigi Schips
Background: Vaginal stones are rare and often unknown entities. Most urologists may never see a case in their careers. Case Presentation: We present the case of a 34-year-old bedridden Caucasian woman with mental and physical disabilities who presented with a large primary vaginal calculus, which, surprisingly, had remained undiagnosed until the patient suffered a right renal colic caused by a ureteral stone. The vagina was completely filled and a digital examination was not possible. For this reason, the stone was removed using surgical pliers with some maneuvering...
2017: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/29277882/mesalazine-a-novel-etiology-for-drug-induced-urinary-calculi
#6
Blaise Corbery, Souhil Lebdai, Shahed Borojeni, Pierre Bigot, Abdel-Rahmène Azzouzi, Thibaut Culty
We report the case of a 23-year-old woman treated by mesalazine for ulcerative colitis and who subsequently presented recurrent renal colic due to mesalazine urinary stones. This is the second case described in the literature.Mesalazine stones are soft, friable and have an orange-beige color. They are not visible on non-contrast computed tomography (CT). Their diagnosis is based on morpho-constitutional analysis and CT-urography. Patients treatedby mesalazine who present renal colic should undergo CT-urography in order to make the diagnosis...
December 26, 2017: Urology Journal
https://www.readbyqxmd.com/read/29251585/complications-and-their-prevention-in-experimental-renal-transplantation-in-rats
#7
Badri Man Shrestha, John Haylor
OBJECTIVES: Experimental rat models of renal transplant have played a pivotal role in renal transplant research. Both intraoperative and postoperative complications during donor nephrectomy and implantation in the recipient can be associated with significant morbidity and mortality. The aim of this paper is to discuss the incidence, pathophysiology, and prevention of complications that occurred in the process of establishment of a rat model of chronic allograft injury at our institution...
December 18, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/29234530/a-prospective-randomised-double-blind-placebo-controlled-trial-to-assess-the-effect-of-diuretics-on-shockwave-lithotripsy-of-calculi
#8
Sagar Sabharwal, L Jeyaseelan, Arabind Panda, Lionel Gnanaraj, Nitin S Kekre, Antony Devasia
Objective: To assess the effect of diuretics with shockwave lithotripsy (SWL) on the treatment of renal and upper ureteric calculi. Patients and methods: Adult patients with a solitary non-obstructive radio-opaque renal or upper ureteric calculus with normal renal function were included. They were prospectively randomised to receive either SWL with placebo or SWL with diuretics (40 mg parenteral furosemide) in a double-blind manner with a sample size of 48 patients in each arm...
December 2017: Arab Journal of Urology
https://www.readbyqxmd.com/read/29212373/propensity-score-matched-analysis-comparing-retrograde-intrarenal-surgery-with-percutaneous-nephrolithotomy-for-large-stones-in-patients-with-a-solitary-kidney
#9
Xiaolei Shi, Yonghan Peng, Xiao Li, Qi Wang, Ling Li, Min Liu, Xiaofeng Gao, Yinghao Sun
PURPOSES: To evaluate the clinical efficacy, safety, and cost of retrograde intrarenal surgery (RIRS) and percutaneous nephrolithotomy (PCNL) in the treatment for large renal stones in patients with a solitary kidney. PATIENTS AND METHODS: In this study, 117 patients with a solitary kidney who had undergone PCNL or RIRS for renal stones larger than 2 cm between January 2010 and December 2016 were retrospectively evaluated. The patients' demographic data, clinical characteristics, and perioperative outcomes were collected through a review of their medical records...
December 6, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/29195830/retrograde-intrarenal-surgery-using-ureteral-access-sheaths-is-a-safe-and-effective-treatment-for-renal-stones-in-children-weighing-20%C3%A2-kg
#10
Alfredo Berrettini, Luca Boeri, Emanuele Montanari, Mirella Mogiatti, Pietro Acquati, Elisa De Lorenzis, Andrea Gallioli, Erika Adalgisa De Marco, Dario Guido Minoli, Gianantonio Manzoni
INTRODUCTION: Surgical treatment of pediatric kidney stones has changed dramatically in recent years because of the miniaturization of surgical instruments and the availability of intracorporeal lithotripters. The retrograde intrarenal surgery (RIRS) technique is nowadays considered an effective and safe procedure but studies in very young children are lacking and use of a ureteral access sheath (UAS) has also been debated. OBJECTIVE: To assess safety and efficacy of RIRS using UAS in children weighing < 20 kg...
November 11, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/29177820/single-use-flexible-ureteropyeloscopy-a-systematic-review
#11
REVIEW
N F Davis, M R Quinlan, C Browne, N R Bhatt, R P Manecksha, F T D'Arcy, N Lawrentschuk, D M Bolton
PURPOSE: Data assessing the effectiveness of single-use flexible ureteropyeloscopy (FURS) are limited. This study evaluates and compares single-use FURS with conventional reusable FURS. METHODS: A systematic search using electronic databases (Pubmed and Embase) was performed for studies evaluating single-use FURS in the setting of urinary tract stone disease. Outcome measures included a comparative evaluation of their mechanical, optical and clinical outcomes. RESULTS: Eleven studies on 466 patients met inclusion criteria...
November 24, 2017: World Journal of Urology
https://www.readbyqxmd.com/read/29173274/single-lower-calyceal-percutaneous-tract-combined-with-flexible-nephroscopy-a-valuable-treatment-paradigm-for-staghorn-stones
#12
Stavros Sfoungaristos, Ioannis Mykoniatis, Ioannis Katafigiotis, Ayman Isid, Ofer N Gofrit, Constantinos A Constantinides, Mordechai Duvdevani
INTRODUCTION: We evaluated the efficacy and safety of single lower calyceal tract combined with flexible nephroscopy for the management of staghorn renal stones by percutaneous nephrolithotomy. METHODS: The medical records of patients who underwent percutaneous nephrolithotomy for the management of staghorn stones were analyzed. We included patients aged >18 years, while patients with incomplete data and renal anatomical anomalies were excluded from the study...
December 1, 2017: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/29172872/ultrasonography-in-the-diagnosis-and-management-of-cats-with-ureteral-obstruction
#13
Christopher R Lamb, Stefano Cortellini, Zoe Halfacree
Objectives The objective was to identify clinical or ultrasonographic results associated with ureteral obstruction or outcome in cats with azotaemia. Methods This was a retrospective cross-sectional study of cats with azotaemia (serum creatinine >180 μmol/l) that had ultrasonography of the urinary tract, ultrasound images available for review and received treatment for azotaemia. Cats with pre-renal azotaemia or urethral obstruction were excluded. Associations between clinical and ultrasonographic results and the dependent variables 'tentative diagnosis of ureteral obstruction', 'pyelography positive for ureteral obstruction' and 'death in hospital' were tested using binary logistic regression...
February 1, 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/29160109/editorial-comment-on-end-2017-0618-or-r1
#14
Mordechai Duvdevani
Percutaneous nephrolithotomy (PCNL) is currently the treatment of choice for large and complex renal calculi. One of the main advantages of PCNL is gaining a real stone-free status in a single session. However, there are several major complications that necessitate careful patient selection for this surgery (1). In this well written manuscript the authors deal with the true rates and importance of residual fragments following PCNL surgeries done in a high volume center. They reviewed 658 PCNL procedures from 2008-2013 that underwent a CT scan on post-operative day one...
November 21, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/29134277/should-mini-percutaneous-nephrolithotomy-minipnl-miniperc-be-the-ideal-tract-for-medium-sized-renal-calculi-15-30%C3%A2-mm
#15
Rajesh A Kukreja
INTRODUCTION: Reducing the percutaneous nephrolithotomy (PCNL) tract size reduces the morbidity associated with the procedure. Prolonged procedure time is a concern. Modification in technique required is to fragment the stone into smaller particles and remove them using the vacuum cleaner effect. This prospective study compares the efficacy and morbidity of reducing the tract size from the standard 24-16.5 Fr for stones sized from 16 to 30 mm. METHODS: 123 patients were enrolled in this prospective study and distributed into 2 groups based on the tract size used (group A 16...
November 13, 2017: World Journal of Urology
https://www.readbyqxmd.com/read/29130789/the-evaluation-of-radiologic-methods-for-access-guidance-in-percutaneous-nephrolithotomy-a-systematic-review-of-the-literature
#16
Alberto Breda, Angelo Territo, Cesare Scoffone, Christian Seitz, Thomas Knoll, Thomas Herrmann, Mariannhe Brehmer, Palle J S Osther, Evangelos Liatsikos
INTRODUCTION: Percutaneous nephrolithotomy (PNL) is the treatment of choice for larger and complex renal calculi. First step in performing PNL is to obtain access to the renal cavity using either fluoroscopy or ultrasound (US) guidance or a combination of both. Which guiding method to choose is controversial? A systematic review of the literature was performed comparing image guidance modalities for obtaining access in PNL. Evidence acquisition and synthesis: A PubMed, Scopus and Cochrane search for peer-reviewed studies was performed using the keywords "ultrasound" AND "fluoroscopy" AND "Percutaneous nephrolithotomy"...
November 12, 2017: Scandinavian Journal of Urology
https://www.readbyqxmd.com/read/29130401/combined-single-tract-of-minimally-percutaneous-nephrolithotomy-and-flexible-ureteroscopy-for-staghorn-calculi-in-oblique-supine-lithotomy-position
#17
Songbai Leng, Donghua Xie, Yi Zhong, Ming Huang
PURPOSE: To present our experience of combined single-percutaneous tract minimally invasive percutaneous nephrolithotomy (MPCNL) and flexible ureteroscopic lithotripsy (FURL) in managing staghorn calculi (SC) in oblique supine lithotomy position and to define the safety, efficiency, and feasibility of this approach. PATIENTS AND METHODS: Eighty-seven patients with SC treated with surgery in our hospital from March 2014 to January 2016 were retrospectively analyzed...
November 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/29118539/laparoscopic-heminephrectomy-in-horseshoe-kidneys-a-single-center-experience
#18
Santosh Agrawal, Jaisukh Kalathia, Saurabh Sudhir Chipde, Udit Mishra, Anurag Tyagi, Sanjay Parashar
Introduction: Laparoscopic approach in horseshoe kidney (HSK) is a challenge because of the aberrant vessels, the renal isthmus and the renal ectopia are all unique features of this anomaly encountered during the surgery. We report our single center experience with this technique in managing three patients with HSK. Methods: A total of 15 cases (9 males and 6 females) were operated between June 2011 and December 2016 for various indications. Of these four patients were managed laparoscopically, two patients with HSK had non-functioning renal moiety underwent transperitoneal heminephrectomy...
October 2017: Urology Annals
https://www.readbyqxmd.com/read/29098192/forgotten-perinephric-drain-anchored-in-the-tissues-lessons-to-be-learned
#19
Prashant Kumar, Rishi Nayyar
Background: Drainage of any deep seated abscess often requires placement of catheters along with other conservative measures. These catheters are removed when the drainage volume reduces to clinically insignificant levels. However, if left in situ, there are potential complications. One such complication necessitating additional surgical procedure is highlighted in this case report. Malecot's catheter and children may be more at risk for such a complication. Case Presentation: A 7-year-old girl presented with recurrent episodes of right flank pain associated with high-grade fever with chills for the last 5 months and right perinephric drain in situ...
2017: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/29093983/the-importance-of-magnesium-in-clinical-healthcare
#20
REVIEW
Gerry K Schwalfenberg, Stephen J Genuis
The scientific literature provides extensive evidence of widespread magnesium deficiency and the potential need for magnesium repletion in diverse medical conditions. Magnesium is an essential element required as a cofactor for over 300 enzymatic reactions and is thus necessary for the biochemical functioning of numerous metabolic pathways. Inadequate magnesium status may impair biochemical processes dependent on sufficiency of this element. Emerging evidence confirms that nearly two-thirds of the population in the western world is not achieving the recommended daily allowance for magnesium, a deficiency problem contributing to various health conditions...
2017: Scientifica
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