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Renal calculus

Bimalesh Purkait, Manoj Kumar, Ashok Kumar Sokhal, Ankur Bansal, Satya Narayan Sankhwar, Ashok Kumar Gupta
To assess the outcomes of percutaneous nephrolithotomy (PCNL) in bilateral staghorn calculi in pediatric patients, we have performed a retrospective analysis. Staghorn calculus is defined as stone that fills a greater part of the pelvic-caliceal system. Still, in developing countries, patients may present with staghorn calculus. PCNL is the preferred treatment modality for staghorn calculus both in adult and children. Our study included fifty-one pediatric patients (<15 years) of bilateral staghorn calculi from 2004 to 2015...
September 15, 2016: Urolithiasis
Ankur Jhanwar, Ankur Bansal, Satyanarayan Sankhwar, Manoj Kumar, Gautam Kanodia, Gaurav Prakash
OBJECTIVE: To analyse outcomes of holmium laser and pneumatic lithotripsy in treatment of lower ureteric calculus in pediatric patients. MATERIALS AND METHODS: Prospective study conducted between August 2013 and July 2015. Inclusion criteria were lower ureteric calculus with stone size ≤1.5cms. Exclusion criteria were other than lower ureteric calculus, stone size ≥1.5cms, congenital renal anomalies, previous ureteral stone surgery. Patients were divided into two groups...
September 1, 2016: International Braz J Urol: Official Journal of the Brazilian Society of Urology
Murat Akand, Ozcan Kilic, Mustafa Kucur, Mehmet Kaynar, Serdar Goktas
INTRODUCTION: Spontaneous nephrocutaneous fistula is a rare manifestation of renal disease that can occur due to various etiologies, such as renal calculus, chronic pyelonephritis, stricture of the ureteropelvic junction, and renal tuberculosis (TB). An autonephrectomy with a nephrocutaneous fistula due to renal tuberculosis can be diagnosed quite late if it is not suspected. CASE PRESENTATION: We report a case of a spontaneous nephrocutaneous fistula with tuberculous autonephrectomy...
June 2016: Iranian Red Crescent Medical Journal
Wei-Hsuan Huang, Chao-Hsiang Chang, Chi-Ping Huang, Hsi-Chin Wu, Po-Fan Hsieh I
PURPOSE: The percentage of parenchyma preserved plays a predominant role in predicting renal function after partial nephrectomy (PN). Currently there is no standard method to estimate preserved renal parenchyma. In this study we propose a formula of the percentage of resected and ischemic volume (PRAIV) determined by a geometric model and evaluate the relationships between renal functional change and PRAIV as well as other clinical parameters. MATERIALS AND METHODS: We identified 71 patients who underwent open PN between January 2004 and April 2014...
September 12, 2016: International Braz J Urol: Official Journal of the Brazilian Society of Urology
Subramanian Vaidyanathan, Azi Samsudin, Gurpreet Singh, Peter L Hughes, Bakul M Soni, Fahed Selmi
INTRODUCTION: Paraplegic patients are at greater risk of developing complications following ureteroscopic lithotripsy because of urine infection associated with neuropathic bladder, difficulties in access due to altered anatomy of urinary bladder and urethra, spinal curvature, spasticity, and contractures. We report the occurrence of large subcapsular hematoma following ureteroscopy and discuss lessons we learn from this case. CASE REPORT: A 48-year-old male patient with spina bifida underwent ureteroscopy with laser lithotripsy and ureteric stenting for left ureteric stone and staghorn calculus with hydronephrosis; laser lithotripsy was repeated after 3 months; both procedures were performed by a senior urologist and did not result in any complications...
2016: International Medical Case Reports Journal
Amit Verma, Vinay Tomar, Shersingh Yadav
PURPOSE: Management of patients with complex multiple renal calculi has always remained challenging and they pose many difficulties during percutaneous nephrolithotomy (PCNL) like higher incidence of residual calculus and multiple tracts requirement. The aim of our study was to evaluate the impact of pelvicalyceal system (PCS) anatomy, stone distribution and the site of puncture on the outcome of PCNL in patients with complex multiple renal calculi. MATERIALS AND METHODS: One hundred and ten patients with complex multiple renal calculi undergoing PCNL during January 2015 to December 2015 were enrolled in our study...
2016: SpringerPlus
Ming Liu, Jianhua Huang, Jingyi Lu, Lanting Hu, Zhengxin Wang, Weiguo Ma, Jian Zhang, Xiaofeng Zhao, Xiao Chen, Binjie Su
BACKGROUND: To investigate the feasibility and safety of tubeless minimally invasive percutaneous nephrolithotomy (MPCNL) in a randomized controlled trial. METHODS: Patients receiving MPCNL from September 2014 to November 2015 were selected according to inclusion and exclusion criteria after nephrolithotomy and divided into study group (tubeless MPCNL) and control group (standard MPCNL) by random number table. A total of 62 patients were included (n=31 in each), and there was no significant difference in age, gender and calculus size between the two groups (P > 0...
September 1, 2016: Minerva Urologica e Nefrologica, the Italian Journal of Urology and Nephrology
Dana Kivlin, Carmen Tong, Justin Friedlander, Patricia Perosio, Jay Simhan
BACKGROUND: Staghorn calculi are well-established risk factors for recurrent urinary tract infections (UTIs) and subsequent renal deterioration. Less commonly, long-term urothelial irritation from a calculus may also pose a risk of malignant transformation. CASE PRESENTATION: A 77-year-old male with multiple medical comorbidities presented with a chronic right renal pelvic staghorn calculus and findings concerning for emphysematous pyelonephritis. He was subsequently taken to the operating room for a planned laparoscopic right nephrectomy...
2016: J Endourol Case Rep
Devang Desai, Sunny Modi, Matthew Pavicic, Melissa Thompson, John Pisko
Renal cysts are common and most often are discovered incidentally, but may require intervention if associated with pain, hypertension, or hematuria. Minimally invasive treatment options are preferred with numerous modalities available, including renal cyst ablation. This case report of a 61-year-old female describes the effective percutaneous drainage and endoscopic ablation of a simple parapelvic renal cyst for management of symptomatic renal calculus. Current literature regarding this surgical intervention and alternative methods is discussed...
2016: J Endourol Case Rep
Marcos Tobias-Machado, Alexandre Kiyoshi Hidaka, Igor Nunes-Silva, Carlos Alberto Chagas, Leandro Correa Leal, Antonio Carlos Lima Pompeo
INTRODUCTION: In special situations such as malrotated or ectopic kidneys and UPJ stenosis treatment of renal lithiasis can be challenging. In these rare cases laparoscopy can be indicated. OBJECTIVE: Describe the Laparoscopic-assisted rigid nephroscopy performed via transpyelic approach and report the feasibility. PATIENTS AND METHODS: We present two cases of caliceal lithiasis. The first is a patient that ESWL and previous percutaneous lithotripsy have failed, with pelvic kidney where laparoscopic dissection of renal pelvis was carried out followed by nephroscopy utilizing the 30 Fr rigid nephroscope to remove the calculus...
July 2016: International Braz J Urol: Official Journal of the Brazilian Society of Urology
Xiaolin Deng, Leming Song, Donghua Xie, Difu Fan, Lunfeng Zhu, Lei Yao, Xiaolin Wang, Shaohua Liu, Yonghua Zhang, Xiaohui Liao, Shengfeng Liu, Zuofeng Peng, Min Hu, Xianxin Zhu, Jianrong Huang, Tairong Liu, Chuance Du, Shulin Guo, Zhongsheng Yang, Guanghua Peng, Zhangqun Ye
BACKGROUND: Flexible ureteroscopic lithotripsy (URS) is rapidly becoming a first-line therapy for patients with renal and ureteral calculi. Most current medical infusion devices can only monitor infusion flow and pressure, but not renal pelvic pressure (RPP). PATIENTS AND METHODS: We designed a patented intelligent system to facilitate flexible URS that included an irrigation and suctioning platform and a ureteral access sheath (UAS) with a pressure-sensitive tip, enabling regulation of the infusion flow precisely and control of the vacuum suctioning by computerized real-time recording and monitoring of RPP...
October 2016: Journal of Endourology
Andrzej Deptala, Agnieszka Romanowicz, Aleksandra Czerw, Jerzy Walecki, Wojciech Rogowski, Anna Nasierowska-Guttmejer
OBJECTIVE: To analyze whether the presence of congenital anomalies of the genitourinary system that are accompanied by specific types of cancer and predispose patients to many complications, including infection, obstruction, stasis, calculus formation, and impaired renal function, could help in the diagnosis of the primary site of a metastatic tumor. CASE PRESENTATION: We report a case of a 58-year-old man with metastatic adenocarcinoma, in whom congenital anomalies of the genitourinary system proved helpful for the diagnosis of the primary site of cancer originating in the seminal vesicles...
2016: OncoTargets and Therapy
David Habashy, Ryan Xia, William Ridley, Lewis Chan, Lloyd Ridley
INTRODUCTION: Dual energy CT (DECT) is a recent technique that is increasingly being used to differentiate between calcium and uric acid urinary tract calculi. The aim of this study is to determine if urinary calculi composition analysis determined by DECT scanning results in a change of patient management. METHOD: All patients presenting with symptoms of renal colic, who had not previously undergone DECT scanning underwent DECT KUB. DECT data of all patients between September 2013 and July 2015 were reviewed...
October 2016: Journal of Medical Imaging and Radiation Oncology
Sandro Roberto da Silva Gaspar, Tiago Mendonça, Pedro Oliveira, Tiago Oliveira, José Dias, Tomé Lopes
OBJECTIVE: To present an updated description of the relation between Crohn's disease (CD) and Urolithiasis. PATIENTS AND METHODS: A literature search for English-language original and review articles was conducted in Medline, Embase, and Cochrane databases in the month of December 2014 for papers either published or e-published up to that date, addressing the association between CD and urolithiasis as its consequence. All articles published in English language were selected for screening based on the following search terms: "CD," "renal calculus," "IBD," and "urolithiasis...
July 2016: Urology Annals
Jiten Jaipuria, Manav Suryavanshi, Tridib K Sen
OBJECTIVES: To assess the reliability of the Guy's Stone Score, the Seoul National University Renal Stone Complexity (S-ReSC) score and the S.T.O.N.E. scores in percutaneous nephrolithotomy (PCNL), and assess their utility in discriminating outcomes [stone free rate (SFR), complications, need for multiple PCNL sessions, and auxiliary procedures] valid across parameters of experience of surgeon, independence from surgical approach, and variations in institution-specific instrumentation...
July 22, 2016: BJU International
Zhanli Fu, Ziao Li, Jia Huang, Jin Zhang, Meng Liu, Qian Li, Yi Li
AIM: To assess the high (18)F-fluorodeoxyglucose ((18)F-FDG) uptake in urinary calculi on positron-emission tomography/computed tomography (PET/CT). METHODS: In this study, (18)F-FDG PET/CT examinations were retrospectively reviewed from November 2013 to February 2016 in a single center, and patients with high (18)F-FDG uptake in urinary calculi were identified. The following data were collected from each patient, including age, sex, primary disease, method to verify the urinary calculus, and imaging characteristics of the calculus...
August 2016: European Journal of Radiology
Gaurav Aggarwal, Samiran Das Adhikary
BACKGROUND: Rupture of the urinary collecting system with or without any perinephric extravasation is an extremely rare occurrence and usually known to occur following an obstructive pathology. Spontaneous or non-traumatic rupture, in the absence of any distal obstruction, though reported in literature, is not yet a proven entity and needs to be distinguished from physiological forniceal rupture, to validate its occurrence. Our case illustrates that spontaneous ureteric rupture does exist and requires a high level of vigil for prompt diagnosis and early simple management...
2016: BMC Urology
Grant D Innes, Frank Scheuermeyer, Mike Law, Andrew McRae, Bryce Weber, Heidi Boyda, Kevin Lonergan, James Andruchow
BACKGROUND: Sex-related differences occur in many areas of medicine. ED studies have suggested differences in access to care, diagnostic imaging use, pain management, and intervention. We investigated sex-based differences in the care and outcomes for ED patients with acute renal colic. METHODS: This was a multi-center population-based retrospective observational cohort study using administrative data and supplemented by structured chart review. All patients seen in Calgary Health Region (CHR) emergency departments between January 1, 2014 and December 31, 2014 with an ED diagnosis of renal colic based on the following ICD-10 codes were eligible for inclusion: calculus of kidney (N200), calculus of ureter (N201), calculus of kidney with calculus of ureter (N202), hydronephrosis with renal and ureteral calculous obstruction (N132), unspecified renal colic (N23), and unspecified urinary calculus (N209)...
June 30, 2016: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
Sanjay Kumar, Vinay Tomar, Sher S Yadav, Hema Udawat, Shivam Priyadarshi, Nachiket Vyas, Neeraj Agarwal
Primary squamous cell carcinoma (SCC) of renal pelvis is a rare neoplasm. A 75-year old male presented with history of chronic dull aching pain in left flank region for last 10-years with history of left pyelolithotomy about 30-years back. After proper workup, large calculus with heterogeneous density mass detected in nonfunctioning left kidney. After radical nephrectomy, histopathological examination revealed squamous cell carcinoma of renal pelvis. SCC should be suspected in a patient with long history of renal calculous and associated mass in non functioning kidney...
September 2016: Urology Case Reports
Andy W Yang, Justin D Johnson, Carolyn M Fronczak, Chad A LaGrange
BACKGROUND: Urolithiasis affects an estimated 5% of the population and the lifetime risk of passing a stone in the urinary tract is estimated to be 8-10%. Urinary calculus formation is highly variable and while certain risk factors such as age, gender, seasonality, anatomic abnormality, and metabolic diseases have been identified, not much is known regarding the association of environmental factors such as lunar phases on renal colic. We conducted a retrospective study to test the hypothesis that full moon phase is an environmental factor associated for increased emergency department (ED) visits for renal colic due to ureteral calculus...
2016: PloS One
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