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nephrolithotomy

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https://www.readbyqxmd.com/read/28073208/experience-of-percutaneous-access-under-ultrasound-guidance-in-renal-transplant-patients-with-allograft-lithiasis
#1
Silvano Palazzo, Ottavio Colamonico, Saverio Forte, Matteo Matera, Giuseppe Lucarelli, Pasquale Ditonno, Michele Battaglia, Pasquale Martino
OBJECTIVE: Urolithiasis of the transplanted kidney has an incidence of 0.2 to 1.7%, it increases the risk of infection in immunosuppressed patients and it can lead to ureteral obstruction that is often associated with deterioration of renal function. Urolithiasis of the transplanted kidney has different characteristics compared to the native kidney, due to the absence of innervation, which does not lead to colic pain. Percutaneous approach is an optimal choice in transplant patients. MATERIAL AND METHODS: Here we report our experience in two cadaveric transplant patients with urolithiasis...
December 30, 2016: Archivio Italiano di Urologia, Andrologia
https://www.readbyqxmd.com/read/28070668/what-happens-to-asymptomatic-lower-pole-kidney-stones-smaller-than-10%C3%A2-mm-in-children-during-watchful-waiting
#2
Onur Telli, Nurullah Hamidi, Uygar Bagci, Arif Demirbas, Ahmet Metin Hascicek, Tarkan Soygur, Berk Burgu
BACKGROUND: The optimal management of lower pole kidney (LPK) stones in children is controversial. The aim of this study was to determine the outcomes of children with asymptomatic isolated LPK stones smaller than 10 mm during follow-up. METHODS: A total of 242 patients with 284 stones presenting at our institution between June 2004 and December 2014 with an asymptomatic, single LPK stone with a diameter of <10 mm were enrolled in the study. All children were assigned to receive first-line therapy and then categorized according to the need for medical intervention...
January 9, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28057990/predictors-of-systemic-inflammatory-response-syndrome-following-percutaneous-nephrolithotomy
#3
Karunamoorthy Ramaraju, Arun Kumar Paranjothi, Dhinakar Babu Namperumalsamy, Ilamparuthi Chennakrishnan
INTRODUCTION AND OBJECTIVES: Sepsis remains one of the dreaded complications of percutaneous nephrolithotomy (PCNL). To analyze prospectively the preoperative and intraoperative factors that predict the occurrence of systemic inflammatory response syndrome (SIRS) in patients undergoing PCNL so that we can aggressively manage those patients from the preoperative period itself and avert the dangerous complications. MATERIALS AND METHODS: A prospective study was carried out between August 2012 and March 2013 including all patients who underwent PCNL...
October 2016: Urology Annals
https://www.readbyqxmd.com/read/28057987/factors-predicting-infectious-complications-following-percutaneous-nephrolithotomy
#4
Kuldeep Sharma, Satya Narayan Sankhwar, Apul Goel, Vishwajeet Singh, Pradeep Sharma, Yogesh Garg
OBJECTIVE: To determine the predictors of infectious complications following percutaneous nephrolithotomy (PCNL) in a prospective study. MATERIALS AND METHODS: A total of 332 patients with renal or upper ureteric calculi who underwent PCNL between January 2013 and June 2014 were included in the study. Infectious complications included febrile urinary tract infection and septicemia. The patients were divided into Group A and B depending on whether they developed or did not develop infectious complications...
October 2016: Urology Annals
https://www.readbyqxmd.com/read/28056285/-recurrent-bleeding-following-the-renal-artery-embolization-treating-post-percutaneous-nephrolithotomy-hemorrhage-causes-and-countermeasure
#5
Y M Ren, X M Wu, Y Wen, Q Lai, W Z Chen, Y X Qian, R G Liang
Objective: To explore the causes and countermeasure in recurrent bleeding following the selective renal artery embolization treating post-percutaneous nephrolithotomy hemorrhage. Methods: A total of 334 patients of severe renal hemorrhage associated with percutaneous nephrolithotomy (PCNL) from March 2011 to April 2015 were analyzed retrospectively.All the patients underwent super selective angiography and renal artery embolization.The causes of recurrent hemorrhage were analyzed and principles for diagnosis and embolization were studied...
January 3, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28052697/are-you-familiar-with-the-flow-of-the-roboflex-avicenna-pump-allow-me-to-explain
#6
Salvatore Butticè, Silvia Proietti, Laurian Dragos, Olivier Traxer
Flexible ureteroscopy in the last few years has become a valid alternative to extracorporeal shock-wave and percutaneous nephrolithotomy even for larger renal calculi. Since 2012, ELMED (Ankara, Turkey) has been working on a robot specifically designed for flexible ureteroscopy. Today we know of the mechanics and electronic parts of Roboflex, what is unknown is the flow rate that the pump develops. We've taken a container connected to the irrigation system of the pump and we measured the quantity of saline solution for each speed...
January 4, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28035623/the-learning-curve-for-access-creation-in-solo-ultrasonography-guided-percutaneous-nephrolithotomy-and-the-associated-skills
#7
Weimin Yu, Ting Rao, Xing Li, Yuan Ruan, Run Yuan, Chenglong Li, Haoyong Li, Fan Cheng
AIM: The aim of the current trial was to evaluate the learning curve of access creation through solo ultrasonography (US)-guided percutaneous nephrolithotomy (PCNL), and clarify the technical details of the procedure. MATERIALS AND METHODS: We evaluated the first 240 solo US-guided PCNLs performed by one surgeon at our institution. The data including the puncture procedure, access characteristics, access-related complications and stone-free rates were assessed in four sequential groups...
December 29, 2016: International Urology and Nephrology
https://www.readbyqxmd.com/read/28033147/miniaturization-of-percutaneous-nephrolithotomy-smaller-but-better
#8
Stephan Huusmann, Udo Nagele, Thomas R W Herrmann
PURPOSE OF REVIEW: Miniaturized percutaneous nephrolithotomy (PCNL) procedures have reached big popularity in the past years. Following the idea that decreasing the diameter of the instruments would decrease the complication rate instruments with outer diameter down to 4,8 Fr was established. In this review, we want to take a critical insight of the most popular miniaturized procedures, regarding the key advantages and disadvantages of the miniaturized instruments. RECENT FINDINGS: For all techniques displayed, a number of studies are available to support their effectivity in the given range of indication...
December 28, 2016: Current Opinion in Urology
https://www.readbyqxmd.com/read/28029669/safety-and-efficacy-of-spinal-anaesthesia-in-percutaneous-nephrolithotomy
#9
R Shah, A S Thapa, N Lamichhane, S R Kc
INTRODUCTION: Renal stone is one of the common entities occurring in our population. There are different treatment modalities of stones; out of those percutaneous nephrolithotomy is one of the most popular and effective for the renal and upper tract stones. This study is based to compare the safety and efficacy of spinal anaesthesia and general anaesthesia in PCNL. METHODS: In a randomized prospective study 60 patients were divided in two groups; group 1 (n=30) underwent PCNL in general anaesthesia and group 2 (n=30) underwent PCNL in spinal anaesthesia in prone position with the conventional technique...
October 2016: JNMA; Journal of the Nepal Medical Association
https://www.readbyqxmd.com/read/28024969/ultrasound-guidance-reduces-percutaneous-nephrolithotomy-cost-compared-to-fluoroscopy
#10
Matthew Hudnall, Manint Usawachintachit, Ian Metzler, David T Tzou, Brittany Harrison, Errol Lobo, Thomas Chi
OBJECTIVE: To examine the cost factors associated with ultrasound and fluoroscopic guidance for percutaneous nephrolithotomy (PCNL) and determine which method can be performed at a lower cost per case. METHODS: A cost comparison study was performed utilizing clinical data from a prospectively maintained research database. We included the most recent 33 consecutive ultrasound-guided PCNL cases in 2016 and the most recent 40 consecutive fluoroscopy-guided PCNL cases before the operative surgeon transitioned to ultrasound guidance in May 2014...
December 23, 2016: Urology
https://www.readbyqxmd.com/read/28013344/residual-stones-after-percutaneous-nephrolithotomy-comparison-of-intraoperative-assessment-and-postoperative-non-contrast-computerized-tomography
#11
Ahmed M Harraz, Yasser Osman, Ahmed R El-Nahas, Amr A Elsawy, Islam Fakhreldin, Osama Mahmoud, Ahmed El-Assmy, Ahmed A Shokeir
OBJECTIVES: To compare the intraoperative surgeon perspective for detection of residual fragments (RFs) after percutaneous nephrolithotomy (PNL) with postoperative NCCT. METHODS: A prospective study of adult patients who underwent PNL between March and September 2014 was conducted. Stone complexity was evaluated using the Guy's stone score (GSS). All patients were evaluated by pre- and postoperative NCCT. After the procedure, the surgeon had been asked whether there were residual stones or not...
December 24, 2016: World Journal of Urology
https://www.readbyqxmd.com/read/28012445/editorial-comment-to-antegrade-ultrasound-contrast-injection-facilitates-accurate-nephrostomy-tube-positioning-during-percutaneous-nephrolithotomy
#12
Piotr Bryniarski
No abstract text is available yet for this article.
December 24, 2016: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/28003822/guy-s-stone-score-gss-based-on-intravenous-pyelogram-ivp-findings-predicting-upper-pole-access-percutaneous-nephrolithotomy-pcnl-outcomes
#13
Bannakij Lojanapiwat, Pattara Rod-Ong, Pruit Kitirattrakarn, Wilaiwan Chongruksut
Objective. To predict the success rate and complications following percutaneous nephrolithotomy via the upper pole using the Guy's Stone Score (GSS) based on the findings of a preoperative intravenous pyelogram (IVP). Patients and Methods. Two hundred and twenty-seven renal operations, which were carried out using PCNL via the upper pole, were classified according to the GSS assigned. Any complications were classified according to the Clavien classification. The success rates and incidence of any complications were compared between each GSS...
2016: Advances in Urology
https://www.readbyqxmd.com/read/27999875/outcomes-of-percutaneous-nephrolithotomy-in-spinal-cord-injury-patients-as-compared-to-a-matched-cohort
#14
Kristin G Baldea, Robert H Blackwell, Srikanth Vedachalam, Anai N Kothari, Paul C Kuo, Gopal N Gupta, Thomas M T Turk
Spinal cord injury patients are at increased risk of developing nephrolithiasis and may require percutaneous nephrolithotomy for treatment of large stone burdens. Our objective was to compare outcomes of PCNL in SCI patients as compared to a matched cohort of non-SCI patients. Data from the Healthcare Cost and Utilization Project State Inpatient Database for Florida and California were used to identify patients by ICD-9 codes who underwent PCNL between 2007 and 2011. SCI was identified by having a paralysis diagnosis on the chronic comorbidity indicator...
December 20, 2016: Urolithiasis
https://www.readbyqxmd.com/read/27998863/-staged-retrograde-flexible-ureteroscopic-lithotripsy-versus-miniaturized-percutaneous-nephrolithotomy-for-renal-stones-of-2-4-cm-in-diameter-a-randomized-controlled-trial
#15
Jian-Wei Li, Fang Wang, Fang-Zhen Cai, Hong-Zhi Gao
OBJECTIVE: To compare the efficacy and safety of staged retrograde flexible ureteroscopic lithotripsy (FURS) and miniaturized percutaneous nephrolithotomy (m-PCNL) for treatment of renal stones of 2-4 cm in diameter. METHODS: This randomized controlled trial was conducted in 70 patients with renal stones of 2-4 cm in diameter admitted in our hospital between January 2013 and December 2015. The patients were randomized to receive staged FURS (35 cases) or m-PCNL (35 cases), and the total treatment time, total hospital stay after procedure, total medical cost, treatment success, decrease in hemoglobin level and complications were compared between the two groups...
December 20, 2016: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/27995302/a-double-blind-placebo-controlled-randomized-clinical-trial-to-evaluate-the-efficacy-of-tranexamic-acid-in-irrigant-solution-on-blood-loss-during-percutaneous-nephrolithotomy-a-pilot-study-from-tertiary-care-center-of-north-india
#16
Ankur Bansal, Aditi Arora
PURPOSE: To evaluate the efficacy and safety of 0.1% tranexamic acid in irrigant fluid in reducing blood loss during PCNL. MATERIALS AND METHODS: The study involved 400 patients who were planned for PCNL and were prospectively randomized into two equal groups. In tranexamic group, 0.1% tranexamic acid was given in irrigant fluid, while in placebo group, distilled water was added to irrigant fluid during surgery. Operative data were recorded which included fall in hemoglobin, total blood loss, operative time, irrigation fluid, length of stay in hospital, requirement of blood transfusion, complications related to PCNL and adverse events of tranexamic acid...
December 19, 2016: World Journal of Urology
https://www.readbyqxmd.com/read/27979532/re-comparison-of-minimally-invasive-percutaneous-nephrolithotomy-and-flexible-ureteroscopy-for-the-treatment-of-intermediate-proximal-ureteral-and-renal-stones-in-the-elderly
#17
https://www.readbyqxmd.com/read/27973459/percutaneous-nephrolithotomy-with-amplatz-and-alken-dilators-an-eight-year-single-tertiary-care-centre-experience
#18
Piotr Bryniarski, Paweł Stelmach, Piotr Taborowski, Paweł Rajwa, Mateusz Adamkiewicz, Marcin Życzkowski, Andrzej Paradysz
BACKGROUND Percutaneous nephrolithotomy (PNL) is the standard procedure for patients with renal stones over 2 cm in diameter. We analyzed complications after this procedure focusing on two different methods of tract dilation. MATERIAL AND METHODS Between August 2008 and April 2016 222 percutaneous nephrolithotomies were performed in a total of 208 patients. The Group I (n=123) comprised patients where Alken dilatators were used, while Group II (n=99) comprised patients where Amplatz dilators were used. Efficacy was examined based on ultrasound and x-ray examination one month after the procedure...
December 14, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27967216/randomized-study-of-ureteral-catheter-vs-double-j-stent-in-tubeless-minimally-invasive-percutaneous-nephrolithotomy-patients
#19
Yizhou Zhou, Jianguo Zhu, Alberto Gurioli, Dongbo Yuan, Jiawei Luo, Zhilin Li, Wei Zhang, Shiwei Xiao, Yongda Liu
OBJECTIVE: To prospectively analyze and compare the outcomes of using externalized ureteral catheter (EUC) vs Double-J ureteral stent (DJ) in tubeless minimally invasive percutaneous nephrolithotomy (MPCNL). PATIENTS AND METHODS: A total of 109 patients underwent tubeless MPCNL in our institute and have been enrolled into this study. Fifty-six and 53 patients had EUC and DJ positioning at the conclusion of the procedure, respectively. The two approaches have been compared for operative time, intraoperative blood loss, postoperative visual analogue pain scale (VAS) score, analgesic requirement, stent-related symptoms, hospital stay, degree of vesicoureteral reflux (VUR) on the operative side, and complications according to the modified Clavien system...
January 12, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/27960540/pediatric-per-cutaneous-nephrolithotomy-experience-of-a-tertiary-care-center
#20
Sher Singh Yadav, Satinder Pal Aggarwal, Rajeev Mathur, Krishan Kumar Sharma, Ram Gopal Yadav, Vinay Drjsraj Rediffmail Com Tomar, Ram Dayal Teli, Deepak Jain
OBJECTIVE: To present the experience of pediatric percutaneous nephrolithotomy (PCNL) of our centre. MATERIAL & METHODS: This study was conducted from 1995 to 2015, on patients < 15 years of age having renal and upper ureteric stones, who underwent PCNL. Stones were classified as per Guy's stone score (GSS). Standard bull's eye technique was used for subcostal puncture. To avoid supracostal puncture, puncture was done in full inspiration or by oblique tract. If these maneuvers failed, then supracostal puncture was done...
December 14, 2016: Journal of Endourology
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