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Duplex Kidney

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https://www.readbyqxmd.com/read/29766465/effects-of-fenoldopam-on-renal-blood-flow-in-hypertensive-chronic-kidney-disease
#1
Valentina Rovella, Michele Ferrannini, Manfredi Tesauro, Giulia Marrone, Andrea Busca, Roberto Sorge, Simone Manca di Villahermosa, Maurizio Casasco, Nicola Di Daniele, Annalisa Noce
BACKGROUND AND AIM: The synthetic drug fenoldopam mesylate (FM) may have a renoprotective role, and a "renal dose" of 0.1 µg/kg/min intravenous (IV) infusion of FM has been reported as able to increase renal blood flow without affecting systemic blood pressure. But conclusive data are still lacking. We aimed to investigate by color-Doppler ultrasonography the effects of IV administration of FM at this dosage in hypertensive chronic kidney disease (CKD) patients, and verify whether it may induce any systemic hemodynamic alteration...
May 15, 2018: Journal of Nephrology
https://www.readbyqxmd.com/read/29736105/duplex-system-with-ectopic-ureter-opens-into-the-posterior-urethra-case-report
#2
Snjezana Milicevic, Radojka Bijelic, Vladimir Krivokuca, Branislava Jakovljevic
Introduction: Duplicated ureter or Duplex Collecting System is a congenital condition in which the ureteric bud, the embryological origin of the ureter, arises twice, resulting in two ureters draining a single kidney. This congenital anomaly is rare, and even rarer when the duplex system with ectopic ureter is present. This type of congenital anomaly is even more rarely diagnosed and surgically treated in adulthood. Case report: This case report presents a case of a 32-year-old male, who had a duplex collecting system with two ureters on the left side...
April 2018: Medical Archives
https://www.readbyqxmd.com/read/29673811/endovascular-aortic-repair-follow-up-protocol-based-on-contrast-enhanced-ultrasound-is-safe-and-effective
#3
Emiliano Chisci, Linda Harris, Azzurra Guidotti, Angelica Pecchioli, Clara Pigozzi, Enrico Barbanti, Leonardo Ercolini, Stefano Michelagnoli
OBJECTIVES: The aim of this study was to define the safety and effectiveness of a contrast enhanced ultrasound (CEUS) based follow up for endovascular aortic repair (EVAR) surveillance at a mid-term period (4 years). METHODS: At the tertiary referral centre EVAR surveillance was based on plain abdominal radiograph and duplex ultrasound (CDU), with computed tomography angiography (CTA) reserved for any non-diagnostic imaging during the period 1999-2011 (Group A)...
April 17, 2018: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/29626631/ift25-is-not-a-cystic-kidney-disease-gene-but-is-required-for-early-steps-of-kidney-development
#4
Paurav B Desai, Jovenal T San Agustin, Michael W Stuck, Julie A Jonassen, Carlton M Bates, Gregory J Pazour
Eukaryotic cilia are assembled by intraflagellar transport (IFT) where large protein complexes called IFT particles move ciliary components from the cell body to the cilium. Defects in most IFT particle proteins disrupt ciliary assembly and cause mid gestational lethality in the mouse. IFT25 and IFT27 are unusual components of IFT-B in that they are not required for ciliary assembly and mutant mice survive to term. The mutants die shortly after birth with numerous organ defects including duplex kidneys. Completely duplex kidneys result from defects in ureteric bud formation at the earliest steps of metanephric kidney development...
April 4, 2018: Mechanisms of Development
https://www.readbyqxmd.com/read/29604531/the-successful-salvage-of-a-thrombosed-pancreatic-graft-at-the-early-postoperative-period-of-a-simultaneous-pancreas-and-kidney-transplantation
#5
Rauf Shahbazov, Feredun Azari, Park Auh Whan, Liu Wei, Avinash Agarwal, Kenneth L Brayman
INTRODUCTION: Simultaneous kidney and pancreas transplant is the preferred treatment option for end-stage renal disease due to type 1 diabetic nephropathy. Vascular complications are detrimental to graft survival and can lead to graft loss in the early postoperative phase of transplantation. Generally, duplex Doppler ultrasound is used for vascular patency monitoring and pancreatectomy followed by re-transplantation is required in the majority of cases. Recently, pancreatic graft salvage with non-operative management, including medical anticoagulation and endovascular thrombectomy, in the early postoperative period has been described with success...
March 16, 2018: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29529969/subclavian-steal-syndrome-in-a-hemodialysis-patient-after-percutaneous-transluminal-angioplasty-of-arteriovenous-access
#6
Yoko Kaneko, Takamoto Yanagawa, Yoshinori Taru, Sonoko Hayashi, Hong Zhang, Tomoki Tsukahara, Tsuneaki Matsunaga, Takashi Ishizu
INTRODUCTION: We describe a hemodialysis patient who developed subclavian steal syndrome via an arteriovenous fistula after percutaneous transluminal angioplasty. CASE DESCRIPTION: A 55-year-old female with end-stage renal failure due to polycystic kidney disease had been treated with hemodialysis for 10 years. Because of an autologous arteriovenous fistula stenosis, percutaneous transluminal angioplasty was performed. After successful treatment with percutaneous transluminal angioplasty, the patient developed dizziness...
March 1, 2018: Journal of Vascular Access
https://www.readbyqxmd.com/read/29483821/disruption-of-gen1-causes-congenital-anomalies-of-the-kidney-and-urinary-tract-in-mice
#7
Herui Wang, Chi Zhang, Xiaowen Wang, Yaru Lian, Bin Guo, Miao Han, Xiaoe Zhang, Xiaoting Zhu, Sixian Xu, Zengli Guo, Yunli Bi, Qian Shen, Xiang Wang, Jiaojiao Liu, Yuan Zhuang, Ting Ni, Hong Xu, Xiaohui Wu
Congenital anomalies of the kidney and urinary tract (CAKUT) are among the most common developmental defects in humans. Despite of several known CAKUT-related loci ( HNF1B , PAX2 , EYA1 , etc.), the genetic etiology of CAKUT remains to be elucidated for most patients. In this study, we report that disruption of the Holliday Junction resolvase gene Gen1 leads to renal agenesis, duplex kidney, hydronephrosis, and vesicoureteral reflux (VUR) in mice. GEN1 interacts with SIX1 and enhances the transcriptional activity of SIX1/EYA1, a key regulatory complex of the GDNF morphogen...
2018: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/29459093/sox11-gene-disruption-causes-congenital-anomalies-of-the-kidney-and-urinary-tract-cakut
#8
Yasmine Neirijnck, Antoine Reginensi, Kirsten Y Renkema, Filippo Massa, Vladimir M Kozlov, Haroun Dhib, Ernie M H F Bongers, Wout F Feitz, Albertien M van Eerde, Veronique Lefebvre, Nine V A M Knoers, Mansoureh Tabatabaei, Herbert Schulz, Helen McNeill, Franz Schaefer, Michael Wegner, Elisabeth Sock, Andreas Schedl
Congenital abnormalities of the kidney and the urinary tract (CAKUT) belong to the most common birth defects in human, but the molecular basis for the majority of CAKUT patients remains unknown. Here we show that the transcription factor SOX11 is a crucial regulator of kidney development. SOX11 is expressed in both mesenchymal and epithelial components of the early kidney anlagen. Deletion of Sox11 in mice causes an extension of the domain expressing Gdnf within rostral regions of the nephrogenic cord and results in duplex kidney formation...
May 2018: Kidney International
https://www.readbyqxmd.com/read/29368877/transperitoneal-laparoscopic-pyeloplasty-in-children-does-upper-urinary-tract-anomalies-affect-surgical-outcomes
#9
João Arthur Brunhara, Paulo Renato Marcelo Moscardi, Marcos Figueiredo Mello, Hiury Silva Andrade, Paulo Afonso Carvalho, Bruno Nicolino Cezarino, Francisco Tibor Dénes, Roberto Iglesias Lopes
OBJECTIVE: to assess the feasibility and outcomes of laparoscopic pyeloplasty in children with complex ureteropelvic junction obstruction (UPJO) and compare to children with iso-lated UPJO without associated urinary tract abnormalities. MATERIAL AND METHODS: Medical records of 82 consecutive children submitted to transperitoneal laparoscopic pyeloplasty in a 12-year period were reviewed. Eleven cases were con-sidered complex, consisting of atypical anatomy including horseshoe kidneys in 6 patients, pelvic kidneys in 3 patients, and a duplex collecting system in 2 patients...
January 26, 2018: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/29324920/technetium-99m-dimercaptosuccinic-acid-renal-scintigraphy-can-guide-clinical-management-in-congenital-hydronephrosis
#10
Biljana Bazić-Đorović, Marija Radulović, Marija Šišić, Ljiljana Jauković, Sanja Dugonjić, Dragan Pucar, Zoran Janković, Slobodanka Beatović, Milica Janković, Zoran Krstić, Boris Ajdinović
OBJECTIVE: The purpose of this study was to evaluate damage of the kidney with technetium-99m-dimercaptosuccinic acid (99m Tc-DMSA) scintigraphy in children with congenital hydronephrosis (CH) and the influence of other postnatal associated diagnoses on abnormal 99m Tc-DMSA findings. SUBJECTS AND METHODS: 99m Tc-DMSA scintigraphy in 54 children (17 girls and 37 boys), aged from 2 months to 5 years (median 11 months) with 66 congenital hydronephrotic renal units (RU) (42 unilateral hydronephrosis-29 boys and 13 girls; 12 bilateral hydronephrosis-8 boys and 4 girls) was performed...
September 2017: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/29290905/duplex-collecting-system-in-a-pelvic-kidney-an-unusual-combination
#11
Francesca Giorlando, Chiara Recaldini, Anna Leonardi, Edoardo Macchi, Carlo Fugazzola
Pelvic kidney is a relatively common renal malformation as well as duplex kidney; however, the unilateral coexistence of these abnormalities is not frequently found. We present a case of a young woman with a history of hypertension in whom a pelvic and dysmorphic left kidney was discovered during ultrasound examination performed for the study of the renal arteries. Magnetic resonance imaging and computed tomography imaging revealed a duplex pelvic kidney. This combination is very rare; we have not found a similar case reported in the literature...
December 2017: Journal of Radiology Case Reports
https://www.readbyqxmd.com/read/29224026/heminephrectomy-in-adults-a-systematic-review-with-cumulative-analysis
#12
Keiran Clement, Jane Hendry, Francis X Keeley, Omar M Aboumarzouk
INTRODUCTION: Duplex collecting system of the kidney is a relatively common abnormality, with the majority of symptomatic cases discovered in childhood. Treatment is commonly a heminephrectomy of the affected moiety. We aimed to conduct a systematic review of the literature to provide the best available evidence for heminephrectomy for duplex kidneys in the adult population. MATERIALS AND METHODS: A literature search was conducted in September 2017 with no limitations being placed on language, region, date or publication type...
December 8, 2017: Urologia Internationalis
https://www.readbyqxmd.com/read/29203188/congenital-segmental-megaureter-in-an-ectopic-kidney
#13
Ashish Khanna, Ravimohan Suryanarayana Mavuduru, Girdhar S Bora, Sudheer K Devana, Arup K Mandal
We describe the imaging findings of a 19-year-old female patient who presented with recurrent urinary tract infections and pain abdomen which was diagnosed to be due to a left-sided focal segmental megaureter with a calculus. The highlights of the case are functioning moiety with no other associated anomalies like vesicoureteral reflux, Duplex system, and so on.
March 2018: Urology
https://www.readbyqxmd.com/read/29201520/transurethral-incision-of-ureteroceles-in-paediatric-age-group
#14
Hemanshi Shah, Charu Tiwari, Neha Sisodiya Shenoy, Pankaj Dwivedi, Suraj Gandhi
Objective: Ureteroceles are a great clinical challenge because of variations in anatomy and clinical presentations. We present our experience with primary transurethral incision of ureteroceles in children. Material and methods: Data of thirteen children managed for ureterocele from 2009 to 2016 was retrospectively analyzed with respect to age, sex, clinical presentation and symptomatology, type and localization of ureterocele, investigations, surgical management and follow-up...
December 2017: Turkish Journal of Urology
https://www.readbyqxmd.com/read/29186176/analysis-of-dna-topology-of-ebv-minichromosomes-in-hek-293-cells
#15
Alicia Castán, Vanessa Fernández-Calleja, Pablo Hernández, Dora B Krimer, Jorge B Schvartzman, María-José Fernández-Nestosa
Simian Virus 40 (SV40) and Epstein-Barr Virus (EBV) are frequently used as model systems to study DNA replication. Their genomes are both circular duplex DNAs organized in a single replicon where replication initiates at a precise site upon binding of a specific protein: the large tumor (T) antigen for SV40 and the Epstein-Barr Nuclear Antigen 1 (EBNA-1) for EBV. Despite the abundant information available on the genetics and biochemistry of the replication process in these systems, little is known about the changes in DNA topology that take place as molecules are transfected into eukaryotic cells, assembled into chromatin and bind initiator proteins to start replication...
2017: PloS One
https://www.readbyqxmd.com/read/29135146/-laparoscopic-heminephrureterectomy-for-duplex-kidney-in-children
#16
I M Kagantsov, V V Sizonov, V I Dubrov, S G Bon-Darenko, N R Akramov, O S Shmyrov, G I Kuzovleva, N V Markov, D E Sablin, R V Surov, A V Pirogov, A A Logval
INTRODUCTION: Duplication of the upper urinary tract is one of the most common congenital urological anomalies. In patients with critically decreased or lost function of one of the renal segments, heminephrureterectomy is usually the treatment of choice. Until recently, this was an open surgery; in cases of complete removal of the ureter, an additional incision in the iliac region was required. Currently, heminephrureterectomy is increasingly performed laparoscopically. We report the experience in laparoscopic heminephrureterectomy (LHNUE) in 10 clinics in Russia and Belarus...
October 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/29037562/dandy-walker-syndrome-with-duplex-kidney-abnormalities-in-trisomy-18-a-rare-case-report
#17
Tun-Jun Wang, Yi-Ying Li, Wan-Ju Wu, Chi-Kang Lin, Chun-Kai Wang, Chen-Yu Wang, Kwei-Shuai Hwang, Her-Young Su
OBJECTIVE: Trisomy 18 is one of the major numerical chromosomal disorders. The incidence of trisomy 18 is approximately one in 6000 live births. Dandy-Walker malformation (DWM) is the most common congenital malformation of the cerebellum, with an incidence of about one in 5000 live births. The incidence of trisomy 18 associated with DWM is rare and long-term survival rate is very low. CASE REPORT: A case involving a 39-year-old pregnant female with a case of trisomy 18 associated with DWM...
October 2017: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29027269/partial-nephrectomy-for-small-children-robot-assisted-versus-open-surgery
#18
Quentin Ballouhey, Aurélien Binet, Pauline Clermidi, Karim Braik, Thierry Villemagne, Jérôme Cros, Hubert Lardy, Laurent Fourcade
OBJECTIVES: To compare the outcomes of robot-assisted heminephrectomy for duplex kidney in children with those of open heminephrectomy. METHODS: The present retrospective multicentric analysis reviewed the records of robot-assisted versus open heminephrectomy carried out for duplex kidney in children from 2007 to 2014. Demographic data, weight, surgical time, hospital stay, complications and outcome were recorded. Follow up was based on a clinical review, renal sonography and dimercaptosuccinic acid renal scintigraphy...
December 2017: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/28958477/duplex-scan-and-histologic-assessment-of-acute-renal-injury-in-a-kidney-kidney-crosstalk-swine-experimental-model
#19
Anna Paula W Baptista Sincos, Angela Mazzeo, Igor Rafael Sincos, Felipe Coelho Neto, Nelson Wolosker, Ricardo Aun, Katia R M Leite, Vitoria Penido de Paula, Oskar G Kaufmann
OBJECTIVE: The objective of this study was to identify the effect of two left renal vasculature occlusion strategies on the duplex ultrasound-assessed rheology and histology of the contralateral kidney. METHODS: Pigs were randomly assigned to one of two groups: left renal artery-only clamping (A group, n = 8) or left renal artery and vein clamping (AV group, n = 9). Bilateral renal parenchymal biopsy specimens were taken every 10 minutes for 90 minutes. Duplex ultrasound resistive index (RI) and pulsatility index (PI) were measured...
September 25, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28943272/clinical-outcomes-of-the-upper-urinary-tract-after-ureteral-clipping-for-treatment-of-low-functioning-or-nonfunctioning-renal-moieties
#20
Roberto Iglesias Lopes, Nicolas Fernandez, Martin A Koyle, Joana Dos Santos, Jaime Perez, Rodrigo Romao, Armando J Lorenzo
PURPOSE: A growing body of evidence suggests that it is safe to ligate the ureter of poorly functioning renal moieties during renal transplantation. We present clinical outcomes and data on hydronephrosis progression in pediatric cases associated with ectopic ureters and obstructive ureteroceles. MATERIALS AND METHODS: We prospectively collected data for 35 consecutive patients (23 females and 12 males) who underwent ureteral clipping between February 2011 and August 2016...
February 2018: Journal of Urology
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