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Renal artery reconstruction

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https://www.readbyqxmd.com/read/29153902/robotic-buccal-mucosal-graft-ureteroplasty-for-complex-ureteral-stricture
#1
Sohrab Arora, Logan Campbell, Mouafak Tourojman, Daniel Pucheril, Lamont R Jones, Craig Rogers
OBJECTIVE: To demonstrate robot-assisted ureterolysis and buccal mucosal graft (BMG) ureteroplasty for the management of a complex, long recurrent ureteral stricture developing after ureterolysis, and also to demonstrate the use of near-infrared fluorescence (NIRF) imaging and intraoperative ureteroscopy during this procedure. METHODS: A 58-year-old man with a history of cabergoline treatment and a cardiac catheterization through the left groin presented with left flank pain and hydronephrosis...
December 2017: Urology
https://www.readbyqxmd.com/read/29123936/reconstruction-of-a-damaged-lower-polar-artery-for-kidney-transplantation-using-tubularised-donor-aorta
#2
A J Vicéns-Morton, C Callaghan, J Olsburgh
Introduction: Live donors, extended donor criteria, and the maximum usage of organs with anatomical variants are some of the mechanisms used to increase the number of organs available. Case: We present the case of a kidney transplant, in which the organ had an iatrogenic injury to a lower pole arterial branch during retrieval. The donor was a 35-year-old male (DCD, Maastricht III). The right kidney was accepted; it had three veins in a single cava patch and three renal arteries, the main artery with aorta patch that is 8 cm long...
2017: Case Reports in Transplantation
https://www.readbyqxmd.com/read/29118687/renoportal-anastomosis-in-left-lateral-lobe-living-donor-liver-transplantation-a-pediatric-case
#3
Hiroyuki Ogasawara, Chikashi Nakanishi, Shigehito Miyagi, Kazuaki Tokodai, Yasuyuki Hara, Wataru Nakanishi, Koji Miyazawa, Kenji Shimizu, Hiroyuki Kumata, Hitoshi Goto, Masafumi Goto, Michiaki Unno, Takashi Kamei
In adult liver transplantation, renoportal anastomosis (RPA) has been introduced as a useful technique for patients with grade 4 portal vein thrombosis and a splenorenal shunt. Here, we report a pediatric case in which RPA allowed a left lateral lobe living donor liver transplantation (LDLT) despite portal vein thrombosis and a large splenorenal shunt. At 36 days old, the patient underwent a Kasai operation for biliary atresia. At 17 months old, she underwent LDLT because of repetitive cholangitis. Pretransplant examinations revealed a large splenorenal shunt and portal vein thrombosis...
September 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/29118534/pure-retroperitoneoscopic-donor-nephrectomy-in-duplication-of-inferior-vena-cava-a-series-of-four-cases
#4
Bipin Chandra Pal, Pranjal R Modi, Syed Jamal Rizvi, Rohit Chauhan, Suresh Kumar, Shruti P Gandhi, Vivek B Kute, Hargovind L Trivedi
Aim: Complex vascular anatomy poses a major challenge to the donor surgeon. Here, we have described the technical nuances in retroperitoneoscopic living donor nephrectomy for the left kidney in the situations of a rare vascular anomaly of duplication of inferior vena. Materials and Methods: Between September 2005 and June 2016, 1460 retroperitoneoscopic living donor nephrectomy were carried out in single surgical unit of our institution. Out of these four donors were found to have duplication of inferior vena cava (IVC)...
October 2017: Urology Annals
https://www.readbyqxmd.com/read/29108513/reconstruction-of-traumatic-external-iliac-artery-dissection-due-to-vascular-clamping
#5
Mahir Kırnap, Ümit Özçelik, Aydıncan Akdur, Ebru H Ayvazoğlu Soy, İclal Işıklar, Feza Yarbuğ Karakayalı, Gökhan Moray, Mehmet Haberal
Traumatic external iliac artery dissection after renal transplant is a rare complication, but it should be urgently managed due to its devastating effects on graft and lower limb circulation. External iliac artery dissection is seen more in recipients with diabetes mellitus and comorbid disease. Recipients with external iliac artery dissection should be treated immediately by percutaneus angioplasty or surgical reconstruction. In this study, we reported the management of 2 kidney transplant cases with external iliac artery dissection due to vascular clamping of the artery...
October 31, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/29107130/robotic-left-sided-level-ii-caval-thrombectomy-and-nephrectomy-using-a-novel-supine-single-dock-approach-primary-description
#6
Monty A Aghazadeh, Alvin C Goh
OBJECTIVES: To demonstrate a novel supine, single-dock approach for robotic nephrectomy and Inferior Vena Cava (IVC) thrombectomy for a left-sided renal cell carcinoma (RCC) with Level II IVC thrombus. METHODS: We perform robotic nephrectomy and IVC thrombectomy in a 79 year-old male with a 6cm left renal mass and level II IVC thrombus. For this approach, the patient is placed in steep Trendelenburg, and a 6-port transperitoneal technique is used, with the robot docked such that the arms are oriented in a cephalad direction...
October 26, 2017: Urology
https://www.readbyqxmd.com/read/29104784/external-validation-of-four-nephrometry-scores-for-trans-peritoneal-robotic-partial-nephrectomy
#7
Bhavan Prasad Rai, Amit Patel, Ahmed Abroaf, Narin Suleyman, Shanmugasundaram Gowriemohan, Venkat Prasad, Nikhil Vasdev, Jim Adshead
Introduction: External validation of four nephrometry scores (NS): Centrality index (C-index), arterial based complexity (ABC), preoperative aspects and dimensions used for an anatomical (PADUA) and radius expohytic/endophytic nearness anterior/posterior location (RENAL) scoring systems in patients who have undergone trans-peritoneal robotic assisted partial nephrectomy (RAPN). Material and methods: A prospective database for RAPN has been maintained. Individual NSs were performed on 3-dimensional reconstructions of MDCT/MRI studies retrospectively by a board certified uroradiologist...
2017: Central European Journal of Urology
https://www.readbyqxmd.com/read/29100509/correction-to-robot-assisted-laparoscopic-reconstructed-management-of-multiple-aneurysms-in-renal-artery-primary-bifurcations-a-case-report-and-literature-review
#8
Hai-Bin Wei, Xiao-Long Qi, Feng Liu, Jie Wang, Xiao-Feng Ni, Qi Zhang, En-Hui Li, Xuan-Yu Chen, Da-Hong Zhang
After publication of this work [1] it was noticed the author - Jie Wang's name was in the wrong order. The original article was corrected. The publisher apologises for this error.
November 3, 2017: BMC Urology
https://www.readbyqxmd.com/read/29076681/anatomical-variants-of-celiac-trunk-hepatic-and-renal-arteries-in-a-population-of-developing-country-using-multidetector-computed-tomography-angiography
#9
Muhammad Arifuzzaman, Syeda Sawaira Nasim Naqvi, Hatem Adel, Syed Omair Adil, Mahreen Rasool, Munawar Hussain
BACKGROUND: Multidetector Computed Tomography (MDCT)s has become a major part in evaluation of hepatic and renal tumours. With improvements in MDCT, CT angiography has also improved and normal anatomy and its variants in patients undergoing operative or interventional procedures can be effectively studied. The purpose of this study was to evaluate the frequency of anatomical variation of celiac trunk, hepatic and renal arterial systems in patients undergoing multidetector CT (MDCT) angiography of the abdominal aorta...
July 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/29074111/polar-orientation-of-renal-grafts-within-the-proximal-seal-zone-affects-risk-of-early-type-ia-endoleaks-after-chimney-endovascular-aneurysm-repair
#10
Kenneth Tran, Brant W Ullery, Nathan Itoga, Jason T Lee
OBJECTIVE: The objective of this study was to describe the polar orientation of renal chimney grafts within the proximal seal zone and to determine whether graft orientation is associated with early type Ia endoleak or renal graft compression after chimney endovascular aneurysm repair (ch-EVAR). METHODS: Patients who underwent ch-EVAR with at least one renal chimney graft from 2009 to 2015 were included in this analysis. Centerline three-dimensional reconstructions were used to analyze postoperative computed tomography scans...
October 23, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29063254/dual-layer-dect-for-multiphasic-hepatic-ct-with-50-percent-iodine-load-a-matched-pair-comparison-with-a-120%C3%A2-kvp-protocol
#11
Yasunori Nagayama, Takeshi Nakaura, Seitaro Oda, Daisuke Utsunomiya, Yoshinori Funama, Yuji Iyama, Narumi Taguchi, Tomohiro Namimoto, Hideaki Yuki, Masafumi Kidoh, Kenichiro Hirata, Masataka Nakagawa, Yasuyuki Yamashita
OBJECTIVES: To evaluate the image quality and lesion conspicuity of virtual-monochromatic-imaging (VMI) with dual-layer DECT (DL-DECT) for reduced-iodine-load multiphasic-hepatic CT. METHODS: Forty-five adults with renal dysfunction who had undergone hepatic DL-DECT with 300-mgI/kg were included. VMI (40-70-keV, DL-DECT-VMI) was generated at each enhancement phase. As controls, 45 matched patients undergoing standard 120-kVp protocol (120-kVp, 600-mgI/kg, and iterative reconstruction) were included...
October 23, 2017: European Radiology
https://www.readbyqxmd.com/read/29058232/iterative-model-reconstruction-imr-algorithm-for-reduced-radiation-dose-renal-artery-ct-angiography-with-different-tube-voltage-protocols
#12
Le Qin, ZePeng Ma, FuHua Yan, WenJie Yang
PURPOSE: To investigate the image quality (IQ) of reduced radiation dose (RRD) renal artery CT angiography (CTA) using iterative model reconstruction (IMR) algorithm at different tube voltage. METHODS: Renal artery CTA scans were acquired with a 256-MDCT scanner on 84 patients assigned into four groups. Group 4 was scanned as standard radiation dose (SRD) group: 120 kVp, automatic tube current modulation (ATCM) technique with an Image Quality Index of 20, and filtered back projection (FBP) algorithm...
October 20, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/29056350/late-patency-of-reconstructed-visceral-arteries-after-open-repair-of-thoracoabdominal-aortic-aneurysm
#13
Andrea Kahlberg, Angela M R Ferrante, Riccardo Miloro, Daniele Mascia, Luca Bertoglio, Domenico Baccellieri, Germano Melissano, Roberto Chiesa
BACKGROUND: In the era of rising endovascular treatment of thoracoabdominal aortic aneurysms (TAAAs), the analysis of visceral vessel (VV) patency after open surgical repair is crucial to provide a future benchmark between these different approaches. This study reports the late outcomes of a single-center experience with open TAAA repair, focusing on the results of different techniques adopted for renal and splanchnic revascularization. METHODS: Data were analyzed for 382 consecutive open TAAA repairs performed between January 2009 and July 2015 (284 men; mean age, 66 ± 10 years)...
October 19, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29050847/anomalous-origin-of-the-left-coronary-artery-from-the-pulmonary-artery-presenting-in-adulthood-a-french-nationwide-retrospective-study
#14
Laura Le Berre, Alban-Elouen Baruteau, Alain Fraisse, Dominique Boulmier, Maria Jimenez, Bruno Gallet, Karine Warin Fresse, Jacques Mansourati, Patrice Guerin
Anomalous origin of the left coronary artery from the pulmonary artery (ALCAPA) is a rare congenital heart disease usually diagnosed during the first months of life. Without surgical treatment, ALCAPA carries a high mortality risk, and disease presentation in adulthood is rare. We describe the diagnosis and management of patients presenting with ALCAPA in adulthood. This multicenter French nationwide retrospective study included adult patients diagnosed from 1980 to 2014. Eleven adult patients (mean age: 38 ± 17 years) were analyzed...
August 25, 2017: Seminars in Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29037183/robot-assisted-laparoscopic-reconstructed-management-of-multiple-aneurysms-in-renal-artery-primary-bifurcations-a-case-report-and-literature-review
#15
Hai-Bin Wei, Xiao-Long Qi, Feng Liu, Wang Jie, Xiao-Feng Ni, Qi Zhang, En-Hui Li, Xuan-Yu Chen, Da-Hong Zhang
BACKGROUND: Renal artery aneurysm (RAA) is rare and its incidence in the general population remains elusive. There have been few reports on the repair of multiple aneurysms conducted with the Da Vinci robot-assisted surgical platform (Intuitive Surgical Inc., Sunnyvale, CA, USA), especially for those located in renal artery primary bifurcations. CASE PRESENTATION: We report our experience in the surgical management of two expanding right-sided RAAs in a 64-year-old man using a robot-assisted laparoscopic approach...
October 16, 2017: BMC Urology
https://www.readbyqxmd.com/read/28982104/repair-of-an-autologous-saphenous-vein-graft-aneurysm-ten-years-after-renal-artery-reconstruction-during-live-donor-renal-transplantation
#16
Markus Oelschlaeger, Ioannis Sokolakis, Charis Kalogirou, Lea Frey, Hubertus Riedmiller, Hubert Kübler, Richard Kellersmann, Daniel Vergho
Saphenous vein graft (SVG) aneurysms (SVGA) after renal transplantation represents a rare vascular complication with subsequent challenging multidisciplinary treatment. We present a case of a 30-year-old female who received a live donor kidney transplantation for end-stage renal disease that was caused due to the hemolytic uremic syndrome. Postoperatively, an insufficient graft perfusion due to an arterial kinking was noted and repaired using an autologous SVG interposition. Ten years later, a 3-cm aneurysm of the SVG at the anastomotic site with the common iliac artery was discovered...
October 6, 2017: Urologia Internationalis
https://www.readbyqxmd.com/read/28914135/hemodynamic-and-anatomic-predictors-of-renovisceral-stent-graft-occlusion-following-chimney-endovascular-repair-of-juxtarenal-aortic-aneurysms
#17
Rosamaria Tricarico, Yong He, Liza Laquian, Salvatore T Scali, Roger Tran-Son-Tay, Adam W Beck, Scott A Berceli
PURPOSE: To identify anatomic and hemodynamic changes associated with impending visceral chimney stent-graft occlusion after endovascular aneurysm repair (EVAR) with the chimney technique (chEVAR). METHODS: A retrospective evaluation was performed of computed tomography scans from 41 patients who underwent juxtarenal chEVAR from 2008 to 2012 to identify stent-grafts demonstrating conformational changes following initial placement. Six subjects (mean age 74 years; 3 men) were selected for detailed reconstruction and computational hemodynamic analysis; 4 had at least 1 occluded chimney stent-graft...
September 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28893708/ex%C3%A2-vivo-reconstruction-and-autotransplantation-for-hilar-renal-artery-aneurysms-in-patients-with-congenital-anomalies
#18
Jaiyeola Adeyemi, Jacob Johnson, Yevgeniy Rits, A George Akingba, Jeffrey Rubin
Renal artery aneurysms (RAAs) are an uncommon finding but are more often associated with other congenital disorders. The complex (hilar) RAAs constitute a subset of RAAs that present a therapeutic dilemma for the vascular surgeon because of their anatomic location. This dilemma worsens when hilar RAAs occur with a solitary kidney where organ preservation is vital. Ex vivo reconstruction with autotransplantation is especially suitable for hilar RAAs, even when they are associated with a solitary kidney. We report 2 of such cases of RAAs with a solitary kidney in patients with pertinent congenital anomalies...
September 8, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28888094/low-dose-scanning-technology-combined-with-low-concentration-contrast-material-in-renal-computed-tomography-angiography-cta-a-preliminary-study
#19
Sulan Liu, Wei Li, Hao Shi, Huaqiang Sheng, Jingli Fan, Jingzhen He, Hongjun Sun
BACKGROUND This study is to investigate the feasibility of low iodine concentration contrast material (CM) combined with low tube voltage and adaptive statistical iterative reconstruction (ASIR) in renal computed tomography angiography (CTA). MATERIAL AND METHODS A total of 136 patients were enrolled in this prospective trial, and randomly divided into two groups: group A (n=68) and group B (n=68). Group A received 120-kVp and iopromide (370 mg/mL) with filtered back projection (FBP) reconstruction, and group B received 100-kVp and iodixanol (270 mg/mL) with ASIR 40% (ASIR40)...
September 9, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28814170/a-novel-reverse-branch-technique-for-reconstruction-of-a-renal-artery-perfused-by-the-false-lumen-after-thoracic-endovascular-aortic-repair
#20
Jie Jin, Jun Bai, Yongfa Wu, Kangkang Zhi, Xiaomin Wang, Xingzhu Wen, Jianjin Wu, Lefeng Qu
PURPOSE: To describe an innovative endovascular technique that successfully reconstructs a renal artery completely perfused by the false lumen after thoracic endovascular aortic repair (TEVAR). CASE REPORT: A 65-year-old patient diagnosed with acute Stanford type B aortic dissection underwent successful TEVAR 4 years ago. Regular follow-up found that the thoracic aorta was well repaired, but the false lumen in the abdominal aorta had enlarged year by year. The left renal artery was supplied entirely by the false lumen, which caused kidney hypoperfusion...
August 1, 2017: Journal of Endovascular Therapy
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