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https://www.readbyqxmd.com/read/28221147/-update-in-the-management-of-ureteral-lithiasis-semirigid-and-flexible-ureterorenoscopy
#1
Carlos Torrecilla Ortiz, Sergi Colom Feixas
OBJECTIVE: The contribution of therapeutic ureteroscopy done by Perez Castro in 1980 varied the management algorithm for ureteral lithiasis worldwide. The techniques of Retrograde Ureteroscopy and transrenal antegrade ureteroscopy led to the abandonment of open surgery for the treatment of ureteral lithiasis. Only Shock wave lithotripsy has maintained similar success rates in selected cases. METHODS: Descriptive analysis of the semirigid and flexible ureteroscopy techniques performed in our department over the last 10 years giving detail on the technique and safety tips to increase the efficacy and efficiency of ureteroscopy...
January 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28219599/aminophylline-effect-on-renal-ischemia-reperfusion-injury-in-mice
#2
K Seo, J W Choi, D-W Kim, D Han, S J Noh, H S Jung
BACKGROUND: Aminophylline increases the intracellular concentration of cAMP and exerts an anti-inflammatory effect. The aim of this study was to investigate the effect of aminophylline on renal ischemia-reperfusion (I/R) injury in mice. METHODS: Thirty C57BL/6 mice were divided into 3 groups. In the sham group (group S, n = 10), only right nephrectomy was performed. In the control group (group C, n = 10), after right nephrectomy, the mice were subjected to 30 minutes of left renal ischemia...
March 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28219134/-role-of-nuclear-factor-of-activated-t-cells-cytoplasmic-1-on-vascular-calcification-in-rats-with-chronic-renal-failure
#3
J X Zhang, J S Xu, Y Y Han, Y L Bai, L W Cui, H R Zhang, S L Zhang
Objective: To explore the role of nuclear factor of activated T-cells cytoplasmic 1 (NFATc1) on vascular calcification in chronic renal failure rats. Methods: Nineteen male Sprague-Dawley (SD) rats were randomly divided into three groups: sham-operated group (n=6), 5/6 Nephrectomy (Nx) group (n=6), 5/6 Nx+ calcitriol group (n=7). Vascular calcification was determined by von Kossa staining and orthocresolphthalein complexone (OCPC) method. Protein expressions of NFATc1 and runt-related transcription factor 2 (Runx2) in aortas were measured by immunohistochemistry...
February 14, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28216945/ex-vivo-partial-nephrectomy-after-living-donor-nephrectomy-surgical-technique-for-expanding-kidney-donor-pool
#4
Yaw A Nyame, Paurush Babbar, Ahmed A Aboumohamed, Ryan L Mori, Stuart M Flechner, Charles S Modlin
Renal transplantation has profound improvements in mortality, morbidity, and overall quality of life compared to renal replacement therapy. This report aims to illustrate the use of ex-vivo partial nephrectomy in a patient with a renal angiomyolipoma prior to living donor transplantation. The surgical outcomes of the donor nephrectomy and recipient transplantation are reported with 2 years of follow-up. Both the donor and recipient are healthy and without any significant comorbidities. In conclusion, urologic techniques such as partial nephrectomy can be used to expand the living donor pool in carefully selected and well informed transplant recipients...
January 2017: Urology Annals
https://www.readbyqxmd.com/read/28216937/renal-cell-carcinoma-atypical-metastasis-to-inguinal-lymph-nodes
#5
Qamar Saeed Chaudhry, Tanweer Ahmed Naveed Bhatty, Ziauddin Khan, Elsawi Medani Osman
Renal cell carcinoma (RCC) is a common tumor of the urinary tract. It is known to have variable presentations due to the extremely vascular nature of the organ. RCC are known to metastasize to lungs, bone, and brain commonly but atypical metastasis to various sites are reported in literature but as very rare pathology. We report a case of a 60-year-old female who presented with multiple inguinal and axillary lymph node enlargements which on excision biopsy showed metastatic RCC. RCC can present with synchronous metastatic deposits in the various organs...
January 2017: Urology Annals
https://www.readbyqxmd.com/read/28216932/role-of-calculated-glomerular-filtration-rate-using-percutaneous-nephrostomy-creatinine-clearance-in-the-era-of-radionuclide-scintigraphy
#6
Sunil Raghunath Patil, Prakash Wamanrao Pawar, Abhishek Jaysukhbhai Savalia, Shankar Tanaji Mundhe, Sayalee Suryabhan Narwade, Ashwin Sunil Tamhankar
CONTEXT: Gates method tends to over-estimate glomerular filtration rate (GFR) in borderline functioning kidneys. We study the role of calculated GFR in these cases in decision-making regarding performing kidney-sparing surgery or nephrectomy. AIMS: The aim of this study is to find the correlation between GFR calculated by percutaneous nephrostomy (PCN) urine creatinine clearance in obstructed kidneys and GFR by radionuclide scintigraphy. It also studies the role of this calculated GFR in borderline functioning kidneys...
January 2017: Urology Annals
https://www.readbyqxmd.com/read/28216925/feasibility-of-laparoscopic-partial-nephrectomy-in-the-obese-patient-and-assessment-of-predictors-of-perioperative-outcomes
#7
Evan Jonathan Wiens, Deepak Kumar Pruthi, Ruchi Chhibba, Thomas Brian McGregor
INTRODUCTION: Partial nephrectomy is the gold standard for treatment of small renal masses. Our study compares outcomes for obese (body mass index [BMI] ≥30) and healthy (BMI <30) patients undergoing laparoscopic partial nephrectomy (LPN) with the intention of defining preoperative risk factors for complications and renal insufficiency in the obese. MATERIALS AND METHODS: We conducted a retrospective review of 187 consecutive patients who underwent LPN. We examined the association between BMI and postoperative complication, estimated blood loss (EBL), hospital length of stay, warm ischemic time (WIT), and postoperative renal function...
January 2017: Urology Annals
https://www.readbyqxmd.com/read/28216391/should-hand-assisted-retroperitoneoscopic-nephrectomy-replace-the-standard-laparoscopic-technique-for-living-donor-nephrectomy-a-meta-analysis
#8
REVIEW
Ahmed Elmaraezy, Abdelrahman Ibrahim Abushouk, Moaz Kamel, Ahmed Negida, Omar Naser
OBJECTIVE: We performed this meta-analysis to compare hand assisted retroperitoneoscopic (HARP) and traditional laparoscopic (TLS) techniques for living donor nephrectomy. METHODS: We searched PubMed, Cochrane Central, EMBASE, and Web of science for prospective studies, comparing HARP and TLS techniques. Data were extracted from eligible studies and pooled as risk ratios (RR) or standardized mean difference (SMD), using RevMan software (version 5.3 for windows)...
February 16, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28215846/active-surveillance-is-superior-to-radical-nephrectomy-and-equivalent-to-partial-nephrectomy-for-preserving-renal-function-in-patients-with-small-renal-masses-results-from-the-dissrm-registry
#9
M R Danzig, R A Ghandour, P Chang, A A Wagner, P M Pierorazio, M E Allaf, J M McKiernan
PURPOSE: We compared renal function outcomes among patients in the surveillance and intervention arms of the DISSRM registry. MATERIALS AND METHODS: Patients were grouped into chronic kidney disease stages by estimated glomerular filtration rate range. Cases were considered up staged if a more advanced chronic kidney disease stage was entered during followup. Chronic kidney disease up staging-free survival was compared among groups using Kaplan-Meier analysis and paired comparisons log rank tests...
March 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28214486/robotic-inferior-vena-cava-surgery
#10
Victor J Davila, Cristine S Velazco, William M Stone, Richard J Fowl, Haidar M Abdul-Muhsin, Erik P Castle, Samuel R Money
OBJECTIVE: Inferior vena cava (IVC) surgery is uncommon and has traditionally been performed through open surgical approaches. Renal cell carcinoma with IVC extension generally requires vena cavotomy and reconstruction. Open removal of malpositioned IVC filters (IVCF) is occasionally required after endovascular retrieval attempts have failed. As our experience with robotic surgery has advanced, we have applied this technology to surgery of the IVC. We reviewed our institution's experience with robotic surgical procedures involving the IVC to determine its safety and efficacy...
March 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28214280/current-guidelines-do-not-sufficiently-discriminate-venous-thromboembolism-risk-in-urology
#11
Kristen McAlpine, Rodney H Breau, Ranjeeta Mallick, Sonya Cnossen, Ilias Cagiannos, Christopher Morash, Marc Carrier, Luke T Lavallée
PURPOSE: Venous thromboembolism (VTE) is the leading cause of noncancer death following major cancer surgery. Current thromboprophylaxis guidelines do not address procedure-specific risk of venous thromboembolism for urological patients. This project was created to determine the risk and timing of VTE after major urological surgery and to evaluate if surgical procedure was an independent risk factor for VTE after adjusting for previously established risk factors. MATERIAL AND METHODS: The American College of Surgeons׳ National Surgical Quality Improvement Program was used to create a cohort of patients who received major abdominal or pelvic urologic surgery between 2006 and 2014...
February 14, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28213570/blunted-transcriptional-response-to-skeletal-muscle-ischemia-in-rats-with-chronic-kidney-disease-potential-role-for-impaired-ischemia-induced-angiogenesis
#12
Rafael U Heiss, Fabian Fahlbusch, Johannes Jacobi, Christoph Daniel, Arif B Ekici, Nada Cordasic, Kerstin Amann, Andrea Hartner, Karl F Hilgers
Chronic kidney disease (CKD) is associated with increased cardiovascular morbidity and mortality. Previous studies indicated an impairment of ischemia-induced angiogenesis in skeletal muscle of rats with CKD. We performed a systematic comparison of early gene expression in response to ischemia in rats with or without CKD to identify potential molecular mechanisms underlying impaired angiogenesis in CKD. CKD was induced in male rats by 5/6 nephrectomy (SNX); control rats were sham operated (sham). Eight weeks later, ischemia of the right limb was induced by ligation and resection of the femoral artery...
February 17, 2017: Physiological Genomics
https://www.readbyqxmd.com/read/28213366/tumor-infiltrating-and-peripheral-blood-t-cell-immunophenotypes-predict-early-relapse-in-localized-clear-cell-renal-cell-carcinoma
#13
Nicolas A Giraldo, Etienne Becht, Yann Vano, Florent Petitprez, Laetitia Lacroix, Pierre Validire, Rafael Sanchez-Salas, Alexandre Ingels, Stephane Marie Oudard, Audrey Moatti, Bénédicte Buttard, Sarah Bourras, Claire Germain, Xavier Cathelineau, Wolf-Herman Fridman, Catherine Sautes-Fridman
PURPOSE: The efficacy of PD-1 Checkpoint Blockade (ChB) as adjuvant therapy in localized clear cell Renal Cell Carcinoma (ccRCC) is currently unknown. The identification of tumor microenvironment (TME) prognostic biomarkers in this setting may help to define which patients could benefit from ChB and to uncover new therapeutic targets. EXPERIMENTAL DESIGN: We performed multiparametric flow cytometry immunophenotypic analysis of T cells isolated from tumor tissue (TIL), adjacent non-malignant renal tissue (RIL) and peripheral blood (PBL), in a cohort of patients (n=40) with localized ccRCC...
February 17, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28212853/long-term-survival-after-resection-of-sentinel-node-metastatic-renal-cell-carcinoma
#14
Teele Kuusk, Jeroen De Jong, Nikolaos Grivas, Simon Horenblas, Axel Bex
We present a case of a patient who took part in a prospective sentinel lymph node (SN) study to investigate the drainage pattern from renal tumors. The patient was treated with laparoscopic radical nephrectomy (LRN), SN and non-SN lymph node dissection (LND) for a clinically node negative (cN0) left renal tumor of 6 cm (cT1b). Histopathological examination revealed a papillary type 2 pT1b renal cell carcinoma (RCC) with two para-aortic metastatic SNs (pN1). No adjuvant treatment was applied. The patient is free of disease at 63 months after surgery...
February 14, 2017: Urology
https://www.readbyqxmd.com/read/28212559/the-selective-mek1-inhibitor-selumetinib-enhances-the-antitumor-activity-of-everolimus-against-renal-cell-carcinoma-in-vitro-and-in-vivo
#15
Yun Zou, Jianfeng Wang, Xuejiao Leng, Jiwei Huang, Wei Xue, Jin Zhang, Yiran Huang
Renal cell carcinoma (RCC) is a urologic malignant cancer and often diagnosed at an advanced stage, which results in high mortality. Targeted therapy may improve the quality of life and survival of patients who are not suitable for nephrectomy. Everolimus, an mTOR inhibitor, is currently used as sequential or second-line therapy for RCC refractory to Sunitinib or sorafenib. However, its efficiency is palliative. In this study, we evaluated whether the antitumor activity of everolimus against RCC is enhanced by Selumetinib, a selective MEK1 inhibitor...
February 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28211281/jejunal-metastasis-of-renal-cell-carcinoma
#16
Pamela Estévez Boullosa, Alfonso Martínez Turnes, Roberto Carracedo Iglesias, José Ignacio Rodríguez Prada
A 71-year-old female presented with melena and anemia. She had a past medical history of renal cell carcinoma diagnosed six years earlier and treated with left nephrectomy. Gastroscopy and colonoscopy showed no abnormalities. Renal cell carcinoma (RCC) is the third commonest urological malignancy, and approximately 25-50% of patients develop metastatic disease after surgery of the primary tumor. The most common sites of metastasis involve lung, lymph nodes, liver, bone and adrenal glands.
February 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28210573/emphysematous-pyelonephritis-in-a-transplanted-kidney
#17
Cristiano Claudino Oliveira, Paula Dalsoglio Garcia, Rosa Marlene Viero
Emphysematous pyelonephritis is a rare infection characterized by necrosis and gas accumulation in the renal parenchyma, adjacent tissues, and/or urinary collecting system. This entity is rarely reported in transplanted kidneys. Computed tomography imaging is necessary for diagnosis and risk classification. The authors described the case of a 58-year-old man who underwent a kidney transplant and presented sepsis from a urinary tract infection. An abdominal tomography showed some characteristics of emphysematous pyelonephritis associated with an abscess...
October 2016: Autopsy & case reports
https://www.readbyqxmd.com/read/28210502/a-single-perioperative-injection-of-dexamethasone-decreases-nausea-vomiting-and-pain-after-laparoscopic-donor-nephrectomy
#18
Shigeyoshi Yamanaga, Andrew Mark Posselt, Chris Earl Freise, Takaaki Kobayashi, Mehdi Tavakol, Sang-Mo Kang
Background. A single dose of perioperative dexamethasone (8-10 mg) reportedly decreases postoperative nausea, vomiting, and pain but has not been widely used in laparoscopic donor nephrectomy (LDN). Methods. We performed a retrospective cohort study of living donors who underwent LDN between 2013 and 2015. Donors who received a lower dose (4-6 mg)  (n = 70) or a higher dose (8-14 mg) of dexamethasone (n = 100) were compared with 111 donors who did not receive dexamethasone (control). Outcomes and incidence of postoperative nausea, vomiting, and pain within 24 h after LDN were compared before and after propensity-score matching...
2017: Journal of Transplantation
https://www.readbyqxmd.com/read/28210271/the-effect-of-obesity-and-increased-waist-circumference-on-the-outcome-of-laparoscopic-nephrectomy
#19
D B Hennessey, E M Bolton, A Z Thomas, R P Manecksha, T H Lynch
Introduction. The prevalence of obesity is increasing worldwide. Obesity can be determined by body mass index (BMI); however waist circumference (WC) is a better measure of central obesity. This study evaluates the outcome of laparoscopic nephrectomy on patients with an abnormal WC. Methods. A WC of >88 cm for women and >102 cm for men was defined as obese. Data collected included age, gender, American Society of Anaesthesiologists (ASA) score, renal function, anaesthetic duration, surgery duration, blood loss, complications, and duration of hospital stay...
2017: Advances in Urology
https://www.readbyqxmd.com/read/28210225/increased-apoptosis-in-the-paraventricular-nucleus-mediated-by-at1r-ras-erk1-2-signaling-results-in-sympathetic-hyperactivity-and-renovascular-hypertension-in-rats-after-kidney-injury
#20
Hongguo Zhu, Lishan Tan, Yumin Li, Jiawen Li, Minzi Qiu, Lanying Li, Mengbi Zhang, Min Liang, Aiqing Li
Background: The central nervous system plays a vital role in the development of hypertension, but the molecular regulatory mechanisms are not fully understood. This study aimed to explore signaling in the paraventricular nucleus (PVN) which might contribute to renal hypertension. Methods: Renal hypertension model was established by five-sixth nephrectomy operation (5/6Nx) in male Sprague Dawley rats. Ten weeks afterwards, they were random assigned to no treatment, or intracerebroventricular injection (ICV) with artificial cerebrospinal fluid, losartan [angiotensin II receptor type 1 (AT1R) antagonist], farnesylthiosalicylic acid (Ras inhibitor), PD98059 (MEK inhibitor), or SB203580 (p38 inhibitor) and Z-DEVD-FMK (caspase-3 inhibitor)...
2017: Frontiers in Physiology
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