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Renal calculus

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https://www.readbyqxmd.com/read/28098121/perspectives-on-hypertension-outcomes-after-single-stage-clearance-of-a-complete-staghorn-renal-calculus
#1
Ranjit Chaudhary, Kulwant Singh, Chirag S Dausage, Nidhi Jain
A 55-year-old male presented, in June 2013, with left flank pain. Investigations revealed a complete staghorn stone. He had undergone two sittings of extracorporeal shock wave lithotripsy (ESWL) in 2008 for left renal stone. One year subsequent to this, he was diagnosed with hypertension and diabetes. The management of complete staghorn stones in a single sitting is a difficult proposition. Percutaneous nephrolithotomy (PCNL) is the gold standard to manage such stones. The patient was subjected to PCNL, and complete clearance was achieved in one sitting...
January 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/27931208/a-randomized-study-of-minimally-invasive-percutaneous-nephrolithotomy-mpcnl-with-the-aid-of-a-patented-suctioning-sheath-in-the-treatment-of-renal-calculus-complicated-by-pyonephrosis-by-one-surgery
#2
Jianrong Huang, Leming Song, Donghua Xie, Monong Li, Xiaolin Deng, Min Hu, Zuofeng Peng, Tairong Liu, Chuance Du, Lei Yao, Shengfeng Liu, Shulin Guo, Jiuqing Zhong
BACKGROUND: Calculus pyonephrosis is difficult to manage. The aim of this study is to explore the value of a patented suctioning sheath assisted minimally invasive percutaneous nephrolithotomy (MPCNL) in the treatment of calculus pyonephrosis. METHODS: One hundred and eighty two patients with calculus pyonephrosis were randomizely divided into observation group (n = 91) and control group (n = 91). The control group was treated with MPCNL traditionally using peel-away sheath while the observation group was treated with MPCNL using the patented suctioning sheath...
December 8, 2016: BMC Urology
https://www.readbyqxmd.com/read/27930897/percutaneous-nephrolithotomy-in-a-patient-with-mainz-pouch-ii-urinary-diversion-a-case-report
#3
Stavros Sfoungaristos, Ioannis Mykoniatis, Evangelos Poulios, Dimitrios Paikos, Dimitrios Hatzichristou
Mainz pouch II is a reliable and viable technique of continent urinary diversion. Patients are at increased risk of long-term complications including urolithiasis of the upper urinary tract and reservoir. We report the case of a 67-year-old male with prior Mainz pouch II due to invasive bladder cancer treated for a large renal calculus. Percutaneous nephrolithotomy (PCNL) was successfully performed. Stone management in these type of patients is of increased interest due to existed "anatomical challenges" concerning the access and safety during the procedure...
2016: Prague Medical Report
https://www.readbyqxmd.com/read/27930563/combining-ultrasonography-and-noncontrast-helical-computerized-tomography-to-evaluate-holmium-laser-lithotripsy
#4
Jia Mi, Jie Li, Qinglu Zhang, Xing Wang, Hongyu Liu, Yanlu Cao, Xiaoyan Liu, Xiao Sun, Mengmeng Shang, Qing Liu
The purpose of the study was to establish a mathematical model for correlating the combination of ultrasonography and noncontrast helical computerized tomography (NCHCT) with the total energy of Holmium laser lithotripsy.In this study, from March 2013 to February 2014, 180 patients with single urinary calculus were examined using ultrasonography and NCHCT before Holmium laser lithotripsy. The calculus location and size, acoustic shadowing (AS) level, twinkling artifact intensity (TAI), and CT value were all documented...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27920983/bacteremic-renal-stone-associated-urinary-tract-infection-caused-by-nontypable-haemophilus-influenzae-a-rare-invasive-disease-in-an-immunocompetent-patient
#5
Masanao Fujii, Harumi Gomi, Haruhiko Ishioka, Noriko Takamura
Haemophilus species are known to colonize the upper respiratory tract and can cause infections. However Haemophilus influenzae has been rarely described as a cause of genitourinary tract infection. We report a 44-year-old nonimmunocompromised Japanese man with bacteremic pyelonephritis caused by a nontypable H. influenzae associated with a left ureteral calculus. The organism was isolated from both blood and urine cultures. Treatment consisted of 14 days of intravenous ceftriaxone and oral amoxicillin one after than other and insertion of a left ureteral stent...
2017: IDCases
https://www.readbyqxmd.com/read/27868099/endourologic-and-open-ureterolithotomy-and-common-sheath-reimplant-for-large-bladder-and-distal-ureteral-calculi
#6
Madeline Cancian, Joseph Brito, Joseph Renzulli, Gyan Pareek
A twenty-eight-year-old female with a history of suprapubic pain and recurrent urinary tract infections presents for urology referral with a kidney, ureter, and bladder radiograph showing a 4.4 cm bladder calculus and 6.5 cm distal left ureteral stone. She underwent effective cystolitholapaxy of the bladder stone. Endourologic attempt (left ureteroscopy) was unsuccessful because of ureteral stone burden. Findings at ureteroscopy revealed a duplicated system on the left with the lower pole moiety joining just proximal to the ureteral orifice...
2016: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/27822582/are-there-any-predictors-of-pyonephrosis-in-patients-with-renal-calculus-disease
#7
Madhusudan Patodia, Apul Goel, Vishwajeet Singh, Bhupendra Pal Singh, Rahul Janak Sinha, Manoj Kumar, Divakar Dalela, Satya Narayan Sankhwar
The objective of the study is to identify factors predicting development of pyonephrosis in patients of renal calculus disease (RCD), as this knowledge is largely unknown. Patients of RCD without pyonephrosis (Group 1) or with pyonephrosis (Group 2) presenting between December 2013 and November 2015 were evaluated. All patients of RCD who had undergone either percutaneous nephrostomy (PCN) or surgical management (percutaneous nephrolithotomy/pyelolithotomy/nephrectomy) were included. Patients treated conservatively, by extracorporeal shock-wave lithotripsy and patients of bilateral RCD were excluded...
November 7, 2016: Urolithiasis
https://www.readbyqxmd.com/read/27790518/adult-idiopathic-renal-vein-thrombosis-mimicking-acute-pyelonephritis
#8
Arpan Choudhary, Prasenjit Majee, Rupesh Gupta, Supriyo Basu, Ranjit Kumar Das
Renal Vein Thrombosis (RVT) is a rarely encountered condition. It occurs due to a hypercoagulable state in the body, caused by nephrotic syndrome and membranous nephropathy in the adults. Mode of presentation is variable. In chronic form, it may remain silent for a long time and presenting later with symptoms of pedal oedema, varicocele, proteinuria. In acute state, it manifests as flank pain, nausea or haematuria. We present a case of 25-year-old male, with left sided flank pain, haematuria and nausea for 4 days...
September 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27770319/efficacy-of-model-based-iterative-reconstruction-technique-in-non-enhanced-ct-of-the-renal-tracts-for-ureteric-calculi
#9
T J Tan, Kenneth K Lau, Dana Jackson, Nicholas Ardley, Adina Borasu
The purpose of this study was to assess the efficacy of model-based iterative reconstruction (MBIR), statistical iterative reconstruction (SIR), and filtered back projection (FBP) image reconstruction algorithms in the delineation of ureters and overall image quality on non-enhanced computed tomography of the renal tracts (NECT-KUB). This was a prospective study of 40 adult patients who underwent NECT-KUB for investigation of ureteric colic. Images were reconstructed using FBP, SIR, and MBIR techniques and individually and randomly assessed by two blinded radiologists...
October 21, 2016: Emergency Radiology
https://www.readbyqxmd.com/read/27633053/percutaneous-nephrolithotomy-of-bilateral-staghorn-renal-calculi-in-pediatric-patients-12%C3%A2-years-experience-in-a-tertiary-care-centre
#10
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
https://www.readbyqxmd.com/read/27622283/outcome-analysis-of-holmium-laser-and-pneumatic-lithotripsy-in-the-endoscopic-management-of-lower-ureteric-calculus-in-pediatric-patients-a-prospective-study
#11
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...
November 2016: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/27621917/spontaneous-nephrocutaneous-fistula-with-tuberculous-autonephrectomy-a-case-report-of-a-delayed-diagnosis
#12
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
https://www.readbyqxmd.com/read/27619668/the-percentage-of-resected-and-ischemic-volume-determined-by-a-geometric-model-is-a-significant-predictor-of-renal-functional-change-after-partial-nephrectomy
#13
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
https://www.readbyqxmd.com/read/27601933/large-subcapsular-hematoma-following-ureteroscopic-laser-lithotripsy-of-renal-calculi-in-a-spina-bifida-patient-lessons-we-learn
#14
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
https://www.readbyqxmd.com/read/27588249/complex-multiple-renal-calculi-stone-distribution-pelvicalyceal-anatomy-and-site-of-puncture-as-predictors-of-pcnl-outcome
#15
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
https://www.readbyqxmd.com/read/27583658/randomized-controlled-study-of-selective-tubeless-minimally-invasive-percutaneous-nephrolithotomy-for-upper-urinary-calculi
#16
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
https://www.readbyqxmd.com/read/27579427/sarcomatoid-squamous-cell-carcinoma-of-the-renal-pelvis-masquerading-as-emphysematous-pyelonephritis-with-staghorn-calculus
#17
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: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/27579403/percutaneous-renal-cyst-ablation-and-review-of-the-current-literature
#18
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: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/27564304/laparoscopic-assisted-transpyelic-rigid-nephroscopy-simple-alternative-when-flexible-ureteroscopy-is-not-available
#19
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
https://www.readbyqxmd.com/read/27558001/a-novel-flexible-ureteroscopy-with-intelligent-control-of-renal-pelvic-pressure-an-initial-experience-of-93-cases
#20
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
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