Read by QxMD icon Read

Urinary stones

Ines van Dooren, Kenn Foubert, Sebastiaan Bijttebier, Mart Theunis, Stefaniya Velichkova, Magda Claeys, Luc Pieters, Vassiliki Exarchou, Sandra Apers
Stone diseases present a major health problem in the Western society, since both urinary and biliary stones occur with a relatively high prevalence of 10-12 % and 10-20 %, respectively, and demonstrate a high recurrence rate. At the moment treatment is mainly based on interventional procedures, or prophylactic and dissolution therapy. However, many of the current drugs cause severe side effects, and therefore, there is an increasing interest in natural medicines. At the moment no registered herbal medicinal products are available for treatment of gallstones...
October 24, 2016: Planta Medica
M Fernández Ibieta, A Bujons Tur, J Caffaratti Sfulcini, J Alberola, D Bonín, R Jiménez Corro, H Villavicencio
INTRODUCTION: Extracorporeal Shock Wave lithotripsy (ESWL) is the cornerstone of pediatric urolitiasis management. We evaluated its efficacy and complications in a series of children. MATERIAL AND METHODS: Children who were managed with ESWL between 2003 and 2012 were retrospectively reviewed. We studied etiology, clinical presentation, stonefree ratio and relevant complications. SPSS 17.0 software was used. RESULTS: 90 children aged 0 to 10 years (median 2...
January 15, 2016: Cirugía Pediátrica: Organo Oficial de la Sociedad Española de Cirugía Pediátrica
Yong Sung Won, Seung-Ju Lee, Hee Youn Kim, Dong Sup Lee
INTRODUCTION: Narrow working space is a major problem to overcome during retroperitoneoscopic ureterolithotomy. We evaluated initial 5 years experience of retroperitoneoscopic ureterolithotomy for large impacted upper ureteral calculi. PATIENTS AND METHODS: Between January 2011 and December 2015, a total of 37 consecutive patients were evaluated. A 12-mm camera port at middle of midaxillary line and two 5-mm working ports in posterior axillary line were created...
October 21, 2016: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
Matthew C Ferroni, Kevin J Rycyna, Timothy D Averch, Michelle J Semins
PURPOSE: Vitamin D deficiency is often detected during metabolic evaluation in the nephrolithiasis population. Multiple vitamin D repletion protocols exist, however their differing impact on urinary stone formation risk factors is unclear. MATERIALS AND METHODS: Patients with a history of calcium stones and vitamin D deficiency (<30ng/ml) were randomized to receive either 1,000 International Units (IU) daily or 50,000 IU weekly of vitamin D supplementation for 6 weeks...
October 17, 2016: Journal of Urology
Naoya Niwa, Takashi Ohigashi, Hideharu Bessho, Takashi Arakawa
A bifid ureter with a distal blind-ending branch is a rare congenital anomaly. Most patients are asymptomatic; only patients with complications, such as infection, vesicoureteral reflux, or stone formation, present symptoms. We describe the case of a patient with urinary stone located in the distal blind-ending branch of a bifid ureter diagnosed during transurethral lithotripsy. Preoperative noncontrast-enhanced computed tomography did not reveal a stone in the distal blind-ending branch of the bifid ureter, but a rigid ureteroscope did; however, it could not reach the stone...
October 17, 2016: Urology
Hedieh Alavi Tamaddoni, William W Roberts, Alexander P Duryea, Charles A Cain, Timothy L Hall
Cavitation plays a significant role in the efficacy of stone comminution during shockwave lithotripsy (SWL). Although cavitation on the surface of urinary stones helps to improve fragmentation, cavitation bubbles along the propagation path may shield or block subsequent shockwaves, and potentially induce collateral tissue damage. Previous in vitro work has shown that applying low amplitude acoustic waves after each shockwave can force bubbles to consolidate and enhance SWL efficacy. In this study, the feasibility of applying acoustic bubble coalescence (ABC) in vivo was tested...
October 20, 2016: Journal of Endourology
Chi-Fai Ng, Sylvia Luke, Chi-Hang Yee, Winnie Chu, Ka-Tak Wong, John Yuen
Objectives To perform a prospective study to evaluate the renal protective effects of ramping protocol and pause protocol for extracorporeal shockwave lithotripsy in human subjects. Patients and Methods 320 patients with solitary renal stone <15mm, were randomized to receive one of four protocols: (1) 80% power from beginning until the end of treatment; (2) the first 100 SWs at 40% power, and then 80% power until the end of treatment; (3) the first 100 shocks at 40% power, followed by a 3-minute pause and then further SWs at 80% power until the end of treatment; and (4) the first 100 shocks at 80% power, followed by a 3-minute pause and then further SWs at 80% power until the end of treatment...
October 20, 2016: Journal of Endourology
Mehmet Erol Yıldırım, Metin Canbal, Ekrem Ozyuvali, Ömer Faruk Karataş
OBJECTIVE: Urinary tract conditions have been an important part of diseases from antiquity until today. Historically, many plants and herbs have been used for the treatment of urinary disorders. METHODS: Celâlüddîn Hızır bin Ali el-Konevi (Hadji Pasha) is one of the most famous physician who lived in Anatolia between 13th and 14th centuries. He has written one of the most important medical books of that era, "Müntehab-ıŞifa" (solution of wellness) in Turkish...
September 2016: Avicenna Journal of Phytomedicine
Takuro Sunada, Satoshi Kamido, Akihiro Hamada, Keiji Kato, Hirotsugu Uetsuki, Hiroaki Kawanishi, Kazuhiro Okumura
A 55-year-old woman was referred to our hospital with dysuria. We were unable to catheterize her using a nelaton catheter because of a urethral stricture, resulting in a large residual urine volume on ultrasonography. The circumference of the periurethral tissue was also thickened and the entire length of the urethra was stenotic, without apparent cause, on magnetic resonance imaging. Biopsy did not reveal malignancy. The pathological diagnosis of the periurethral tissue was simply fibrosis, and there was no definitive diagnosis...
September 2016: Hinyokika Kiyo. Acta Urologica Japonica
Joel E Abbott, Roger L Sur
The aim of this paper was to evaluate the current technology and designs of flexible ureterorenoscopes. We will review contemporary fiberoptic and digital ureteroscopes, including a discussion on ureteroscope damage and repair, and lastly present the projected future of flexible ureterorenoscopy. Ureterorenoscopy has evolved dramatically over the past several decades, which has led to landscape reshaping of stone disease treatment and upper tract pathology. Advancements in tip control, miniaturization of scopes, introduction of a digital chip on the tip, disposable devices to augment surgery, surgical experience/familiarity and most recently single use scopes are all independent factors that have increased flexible ureterorenoscopy adoption and success...
October 19, 2016: Minerva Urologica e Nefrologica, the Italian Journal of Urology and Nephrology
Helena Chang, David T Tzou, Manint Usawachintachit, Brian D Duty, Ryan S Hsi, Jonathan D Harper, Mathew D Sorensen, Marshall Stoller, Roger L Sur, Thomas Chi
<b>Objectives</b>: Registry-based clinical research in nephrolithiasis is critical to advancing quality in urinary stone disease management and ultimately reducing stone recurrence. A need exists to develop HIPAA-compliant registries comprised of integrated electronic health record (EHR) data using prospectively defined variables. An EHR-based standardized patient database - The Registry for Stones of the Kidney & Ureter (ReSKU™) was developed and herein we describe our implementation outcomes...
October 19, 2016: Journal of Endourology
Erfan Amini, Farhad Pishgar, Asal Hojjat, Mohammad Soleimani, Majid Ali Asgari, Abdol-Mohammad Kajbafzadeh
This study was designed to evaluate the role of urinary and serum carbohydrate antigen 19-9 (CA19-9) as a biomarker in the assessment of patients with ureteral stone. A total of 38 patients with ureteral stone and hydronephrosis who underwent transurethral lithotripsy (TUL) (Group A) and 24 age-matched healthy controls (Group B) were evaluated in this study. Urinary and serum CA19-9 concentrations were measured in group A patients before TUL as well as 4 and 8 weeks following the operation. Urinary and serum CA19-9 concentrations were also measured in group B participants...
October 18, 2016: Renal Failure
Nicola D Thompson, Lisa LaPlace, Lauren Epstein, Deborah Thompson, Ghinwa Dumyati, Cathleen Concannon, Gail Quinlan, Tory Witten, Linn Warnke, Ruth Lynfield, Meghan Maloney, Richard Melchreit, Nimalie D Stone
OBJECTIVES: To describe the prevalence and epidemiology of antimicrobial use (AU) in nursing home residents. DESIGN: One-day point prevalence survey. SETTING AND PARTICIPANTS: Nine nursing homes in four states; 1,272 eligible residents. MEASUREMENT: Frequency of antimicrobials prescribed, drug name, start date, duration, route, rationale, and treatment site. AU prevalence per 100 residents overall and by resident characteristic...
October 14, 2016: Journal of the American Medical Directors Association
Zhuo Liu, Hongyang Jiang, Jun Yang, Tao Wang, Yufeng Ding, Jihong Liu, Shaogang Wang, Zhangqun Ye
Calcium oxalate stones account for >80% of urinary stones, however the mechanisms underlying their formation remains to be elucidated. Hyperoxaluria serves an important role in the pathophysiological process of stone formation. In the present study, differences in the miRNA expression profiles between experimental hyperoxaluric rats and normal rats were analyzed, in order to identify target genes and signaling pathways involved in the pathogenesis of hyperoxaluria. Ethylene glycol and ammonium chloride was fed to male hyperoxaluric rats (EXP) and normal age‑matched male rats (CON)...
October 12, 2016: Molecular Medicine Reports
Kiran Imran, Mirza Naqi Zafar, Uzma Ozair, Sadia Khan, Syed Adibul Hasan Rizvi
The goal of this study was to investigate metabolic risk factors in pediatric stone formers in an emerging economy. A prospective, data collection enrolled 250 children age <1-15 years at our center. Risk factors were evaluated by gender and in age groups <1-5, 6-10 and 11-15 years. Patients were evaluated for demographics, blood and 24 h urine for calcium, magnesium, phosphate, uric acid, electrolytes and additional protein, citrate, ammonia and oxalate in urine. All reported values were two sided and statistical significance was considered at p value ≤0...
October 15, 2016: Urolithiasis
Yang Liu, Anniwaer Yasheng, Kang Chen, Chuangxin Lan, Hamulati Tusong, Lili Ou, Yeping Liang, Hans-Göran Tiselius, Guohua Zeng, Wenqi Wu
The Objective of this study is to analyze the difference in renal stone composition between Uyghur and Han children with urolithiasis in China and possible reasons. From May 2011 to September 2013, we analyzed the stone compositions of 274 Chinese children with urolithiasis, including 151 Uyghur children from Xinjiang Province and 123 Han children from Guangdong Province. All the stone components were determined by Infrared spectroscopy and the main components were recorded. We also evaluated the data, including age, gender and geographic region of the patients...
October 15, 2016: Urolithiasis
Emmanuel Richard, Jean-Marc Blouin, Jerome Harambat, Brigitte Llanas, Stephane Bouchet, Cecile Acquaviva, Renaud De la Faille
We report the case of a 78-year-old patient with late diagnosis of hyperoxaluria type III (PH3). He developed renal failure after nephrectomy for clear cell papillary renal carcinoma and complained of recurrent urolithiasis for some 30 years whose etiology was never identified. Biochemical laboratory investigations of urine and urolithiasis composition revealed marked hyperoxaluria but normal levels of urinary glyceric and glycolic acid as well as stones of idiopathic calcium-oxalate appearance. Furthermore, the dietary survey showed excessive consumption of food supplements containing massive amounts of oxalate precursors...
October 13, 2016: Annals of Clinical Biochemistry
Volkan Sen, Ibrahim Halil Bozkurt, Ozgu Aydogdu, Tarik Yonguc, Serkan Yarimoglu, Pinar Sen, Omer Koras, Tansu Degirmenci
We evaluated the usefulness of preoperative neutrophil-lymphocyte count ratio (NLCR) in predicting postoperative sepsis after percutaneous nephrolithotomy (PCNL). In total, 487 patients who underwent PCNL for renal stones were included in the present retrospective study. The stone burden, number of tracts and location, operation time, fluoroscopy time, presence of residual stones, and blood transfusion rates were postoperatively recorded in all patients. All patients were followed up for signs of systemic inflammatory response syndrome (SIRS) and sepsis...
October 2016: Kaohsiung Journal of Medical Sciences
Donna Arvans, Yong-Chul Jung, Dionysios Antonopoulos, Jason Koval, Ignacio Granja, Mohamed Bashir, Eltayeb Karrar, Jayanta Roy-Chowdhury, Mark Musch, John Asplin, Eugene Chang, Hatim Hassan
Hyperoxaluria is a major risk factor for kidney stones and has no specific therapy, although Oxalobacter formigenes colonization is associated with reduced stone risk. O. formigenes interacts with colonic epithelium and induces colonic oxalate secretion, thereby reducing urinary oxalate excretion, via an unknown secretagogue. The difficulties in sustaining O. formigenes colonization underscore the need to identify the derived factors inducing colonic oxalate secretion. We therefore evaluated the effects of O...
October 13, 2016: Journal of the American Society of Nephrology: JASN
Adam Geoffrey Kaplan, Tony T Chen, Georgy Sankin, Chen Yang, Joanne Andrea Dale, W Neal Simmons, Pei Zhong, Glenn M Preminger, Michael Eric Lipkin
INTRODUCTION: The Nanopulse Lithotripter (NPL, Lithotech Medical, Israel) is a novel intracorporeal device that uses a nanosecond duration electrical discharge through a reusable flexible coaxial probe to endoscopically fragment urinary stones. This device was compared to a holmium laser lithotripsy (HoL) with regards to stone fragmentation efficiency (SFE) and its impact on flexible ureteroscope (URS) deflection and flow of irrigation. METHODS: Using a custom bench model, a 6mm Begostone cylindrical phantom (mixture 5:2) was confined under 0...
October 13, 2016: Journal of Endourology
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"