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https://www.readbyqxmd.com/read/28916408/robot-assisted-kidney-transplantation-the-european-experience
#1
Alberto Breda, Angelo Territo, Luis Gausa, Volkan Tuğcu, Antonio Alcaraz, Mireia Musquera, Karel Decaestecker, Liesbeth Desender, Michael Stockle, Martin Janssen, Paolo Fornara, Nasreldin Mohammed, Giampaolo Siena, Sergio Serni, Luis Guirado, Carma Facundo, Nicolas Doumerc
BACKGROUND: Robot-assisted kidney transplantation (RAKT) has recently been introduced to reduce the morbidity of open kidney transplantation (KT). OBJECTIVE: To evaluate perioperative and early postoperative RAKT outcomes. DESIGN, SETTING AND PARTICIPANTS: This was a multicenter prospective observational study of 120 patients who underwent RAKT, predominantly with a living donor kidney, in eight European institutions between July 2015 and May 2017, with minimum follow-up of 1 mo...
September 12, 2017: European Urology
https://www.readbyqxmd.com/read/28915249/effect-of-treatment-with-angiopoietin-2-and-vascular-endothelial-growth-factor-on-the-quality-of-xenografted-bovine-ovarian-tissue-in-mice
#2
Hyun Sun Kong, Jaewang Lee, Hye Won Youm, Seul Ki Kim, Jung Ryeol Lee, Chang Suk Suh, Seok Hyun Kim
Cryopreservation and transplantation of ovarian tissue (OT) represents a method for fertility preservation. However, as the transplantation is performed without vessel anastomosis, unavoidable ischemic damage occurs. To reduce this ischemic damage and improve outcomes after transplantation, we used two kind of angiogenic factors, angiopoietin-2 (ang-2) and vascular endothelial growth factor (VEGF). Fresh or vitrified-warmed bovine OTs were prepared for xenotransplantation (XT). Fresh OTs were immediately xenografted into nude mice (XT-Fresh)...
2017: PloS One
https://www.readbyqxmd.com/read/28912005/proximal-radial-artery-arteriovenous-fistula-for-hemodialysis-vascular-access
#3
William C Jennings, Alexandros Mallios, Nasir Mushtaq
OBJECTIVE: This study reviewed our experience with proximal radial artery-based arteriovenous fistulas (PRA-AVFs) for hemodialysis vascular access, evaluating characteristics of the patients, functional patency, risk of steal syndrome, survival of the patient, and technical considerations. METHODS: We retrospectively analyzed our database of consecutive patients, identifying those individuals with a PRA-AVF created during a 12-year period. In addition to physical examination, all patients underwent ultrasound vessel mapping by the operating surgeon, identifying the PRA-AVF configuration and outflow target most likely to succeed...
September 11, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28910897/-the-application-of-microvascular-anastomotic-coupler-in-vascular-anastomosis-of-free-tissue-flap-for-reconstruction-of-defect-after-head-and-neck-cancer-resection
#4
Y J Zhang, Z H Wang, C H Li, J Chen
Objective: To investigate the application and operation skills in vein anastomosis by microvascular anastomotic coupler (MAC) in reconstruction of defects after head and neck cancer resection. Methods: From August 2015 to July 2016, in Department of Head and Neck Surgery, Sichuan Cancer Hosipital, 17 cases underwent the reconstruction of defects after head and neck cancer resection with free tissue flaps, including forearm flaps in 11 casess, anterolateral flaps in 4 casess and fibula flaps in 2 casess. Totally 17 MAC were used, including 14 MAC for end-to-end anastomosis and 3 MAC for end-to-side anastomosis...
September 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28906349/intestinal-obstruction-due-to-kaposiform-hemangioendothelioma-in-a-1-month-old-infant-a-case-report
#5
Joong Kee Youn, Shin-Hoo Park, Ji-Won Han, Chaeyoun Oh, Hyun-Young Kim, Sung-Eun Jung
RATIONALE: Kaposiform hemangioendothelioma (KHE) is an aggressive vascular tumor, mainly occurring in infants and young children and previously reported cases were mainly cutaneous or visceral form. Intestinal kaposiform hemangioma was first reported in 2012. Intestinal type KHE showed better prognosis if the lesion was limited in the gastrointestinal tract and coagulopathy was not accompanied. Since the number of reported cases is small, further study for treatment options and prognosis need to be done...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28906042/vascular-configurations-of-anastomotic-basket-of-conus-medullaris-in-human-spinal-cord
#6
Santiago Rojas, Marisa Ortega, Alfonso Rodríguez-Baeza
INTRODUCTION: The arterial basket of the conus medullaris is one of several anastomoses between the anterior and posterior spinal arteries. The anatomy of this structure has attracted little attention. This work sought to investigate its configuration in human spinal cords. MATERIALS AND METHODS: Spinal cords from male and female cadavers (n=32) were injected with colored latex through the intercostal, lumbar, medial sacral and the posterior trunks of the hypogastric arteries...
September 14, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28904828/usefulness-of-dural-surface-tracing-of-the-cortical-vessels-with-indocyanine-green-videoangiography-just-prior-to-dural-opening-for-various-cerebrovascular-diseases
#7
Naoki Otani, Kojiro Wada, Terushige Toyooka, Satoru Takeuchi, Arata Tomiyama, Kentaro Mori
BACKGROUND: Indocyanine green (ICG) videoangiography can be used to delineate the locations of the cortical vessels just prior to dural opening, allowing safe and optimal dural opening. The present clinical series demonstrates the adjunct use of ICG videoangiography to optimize dural opening for the treatment of various cerebrovascular diseases. METHODS: A total of 45 patients underwent surgery for superficial temporal artery-middle cerebral artery bypass (40), arteriovenous malformation (2), and dural arteriovenous fistula (3) between January 2012 and December 2016...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28901689/prevascularization-of-3d-printed-bone-scaffolds-by-bioactive-hydrogels-and-cell-co-culture
#8
Mitchell A Kuss, Shaohua Wu, Ying Wang, Jason B Untrauer, Wenlong Li, Jung Yul Lim, Bin Duan
Vascularization is a fundamental prerequisite for large bone construct development and remains one of the main challenges of bone tissue engineering. Our current study presents the combination of 3D printing technique with a hydrogel-based prevascularization strategy to generate prevascularized bone constructs. Human adipose derived mesenchymal stem cells (ADMSC) and human umbilical vein endothelial cells (HUVEC) were encapsulated within our bioactive hydrogels, and the effects of culture conditions on in vitro vascularization were determined...
September 13, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28894667/dual-vascular-free-anterolateral-thigh-flap
#9
Toshiaki Numajiri, Daiki Morita, Shoko Tsujiko, Hiroko Nakamura, Yoshihiro Sowa, Akihito Arai, Matsui Masahiro, Hiroshi Nakano, Shigeru Hirano
BACKGROUND: The optimum number of microvascular anastomoses for safe free tissue transfer is controversial. Although the case for 2 venous anastomoses versus 1 anastomosis has been argued, the use of an additional arterial anastomosis has not been examined in detail. METHODS: Twelve patients who underwent 2 arterial anastomoses for a free flap transfer were identified retrospectively from the medical records of patients undergoing reconstruction for head and neck cancer...
August 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28894657/optimization-of-an-arterialized-venous-fasciocutaneous-flap-in-the-abdomen-of-the-rat
#10
Diogo Casal, Eduarda Mota-Silva, Diogo Pais, Inês Iria, Paula A Videira, David Tanganho, Sara Alves, Luís Mascarenhas-Lemos, José Martins Ferreira, Mário Ferraz-Oliveira, Valentina Vassilenko, João Goyri O'Neill
BACKGROUND: Although numerous experimental models of arterialized venous flaps (AVFs) have been proposed, no single model has gained widespread acceptance. The main aim of this work was to evaluate the survival area of AVFs produced with different vascular constructs in the abdomen of the rat. METHODS: Fifty-three male rats were divided into 4 groups. In group I (n = 12), a 5-cm-long and 3-cm-wide conventional epigastric flap was raised on the left side of the abdomen...
August 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28882491/anatomic-and-high-resolution-computed-tomographic-angiography-study-of-the-lateral-femoral-condyle-flap-implications-for-surgical-dissection
#11
Mohamed Morsy, Yoo Joon Sur, Osman Akdag, Amr Eisa, Tarek A El-Gammal, Nirusha Lachman, Steven L Moran
BACKGROUND: The lateral femoral condyle (LFC) flap is a vascularized bone flap based on the superior lateral genicular artery (SLGA). Harvest technique for this flap has not yet been demonstrated. The purpose of this study was to better delineate the blood supply to the bone and skin of this flap to allow for a safe and effective harvest. MATERIALS AND METHODS: Twenty-three lower extremities were injected with latex or a mixture of latex and barium sulfate. The SLGA was identified and dissected, documenting the course, diameter, anatomical relations, length, and branches...
August 16, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28881334/antegrade-jejunojejunal-intussusception-inside-a-retrograde-jejunogastric-intussusception-double-intussusception-a-rare-case-report
#12
Samson Ravirajendran, Sinduja Munnamgi, Akmal Abdul
INTRODUCTION: Jejunogastric intussusception through a gastrojejunal stoma along with a jejunojejunal intussusception (intussusception within an intussusception) is a rare but serious complication of previous gastric surgery such as gastrojejunostomy and Billroth II gastrectomy. The incidence of which is less than 0.1%. CASE PRESENTATION: An elderly male presented with an abdominal lump, diffuse abdominal pain and vomiting for one-day duration. Ultrasound and CECT abdomen revealed dilated stomach with jejunojejunal intussusception herniating into stomach...
August 24, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28880048/histopathological-changes-associated-to-an-absorbable-fibrin-patch-tachosil%C3%A2-covering-in-an-experimental-model-of-high-risk-colonic-anastomoses
#13
C García-Vásquez, S Gómez García de Las Heras, C Pastor Idoate, D De Pablo, M J Fernández-Aceñero
BACKGROUND: TachoSil® is a fibrin sponge that contains fibrinogen and thrombin and is a useful adjuvant to enhance control of air leaks in thoracic surgery and to control bleeding in vascular and general surgery. Its use in intestinal surgery to prevent suture dehiscence is currently under investigation. MATERIAL AND METHODS: We report the results of a prospective randomized experimental study on 33 large white pigs in which a high-risk suture was created by induction of ischemia...
September 7, 2017: Histology and Histopathology
https://www.readbyqxmd.com/read/28877360/improvement-of-the-efficacy-of-vascularized-lymph-node-transfer-for-lower-extremity-lymphedema-via-a-prefabricated-lympho-venous-shunt-through-lymphaticovenular-anastomosis-between-the-efferent-lymphatic-vessel-and-small-vein-in-the-elevated-vascularized-lymph
#14
Shinsuke Akita, Yoshihisa Yamaji, Hideki Tokumoto, Yoshitaro Sasahara, Yoshitaka Kubota, Motone Kuriyama, Nobuyuki Mitsukawa
BACKGROUND: Following vascularized lymph node (VLN) transfer (VLNT), the VLN may be at a risk for sclerosis because of efferent lymphatic vessel obstruction. We developed a new technique to prevent VLN sclerosis via a prefabricated lympho-venous (LV) shunt. This study compared the treatment outcomes of single VLNT with prefabricated LV shunt, conventional multiple VLNTs, and conventional single VLNT. METHODS: Overall, 47 limbs of 45 patients that underwent VLNT for lower-extremity lymphedema (LEL) in late clinical stage II/III were divided into 3 groups: conventional single VLNT group (control; 21 limbs where 4 had primary LEL), multiple VLNTs group (13 limbs where 3 had primary LEL), and prefabricated LV shunt group (13 limbs where 4 had primary LEL)...
September 6, 2017: Microsurgery
https://www.readbyqxmd.com/read/28872504/chondrocutaneous-preauricular-free-flap-for-reconstruction-of-nasal-defects-aided-by-interposition-vascular-graft
#15
Sangjun Yim, Seok-Chan Eun
INTRODUCTION: Reconstruction of a nose deformity with a full-thickness defect is not an easy procedure because the nose is highly noticeable, being located at the center of the face, and plays an important role in breathing. Esthetics and functionality are equally important. Local flap reconstruction is an option but it has limitations for reconstruction of large defects because of the following the scar and the deformity at the recipient site. Chondrocutaneous preauricular free flaps can be used to provide grafts with satisfactory esthetics...
September 1, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28870823/occipital-artery-to-middle-cerebral-artery-bypass-operative-nuances
#16
Toshikazu Kimura, Akio Morita
BACKGROUND: Superficial temporal artery-middle cerebral artery (STA-MCA) anastomosis is a common procedure for vascular neurosurgeons, and it is used in a variety of diseases. However, there are cases in which the STA is absent or is too hypoplastic to be used as a donor for revascularization. Occipital artery-MCA (OA-MCA) bypass may be a treatment option in these cases. METHODS: We encountered four cases of symptomatic cerebral ischemia in which the STA was absent or unavailable...
September 1, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28870051/-choices-of-methods-in-dividing-the-neck-of-pancreas-in-laparoscopic-pancreaticoduodenectomy
#17
R G Lin, H G Huang, Y C Chen, F C Lu, X C Lin, Y Y Yang, H Z Fang, C F Wang
Objective: To discuss the methods, skills and experiences of dividing the neck of pancreas in laparoscopic pancreaticoduodenectomy(LPD). Methods: The clinical data of 58 patients with periampullary tumors who received LPD at the Union Hospital of Fujian Medical University from December 2014 to January 2017 were retrospectively analyzed.There were 26 males and 32 females, ranged from 18 to 65 years, with a mean age of (46±12)years. Results: All of the 58 patients underwent operation smoothly.Three cases underwent open anastomosis via an auxiliary incision after the total resection of specimen laparoscopically, due to the early learning curve of LPD...
September 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/28868207/host-non-inflammatory-neutrophils-mediate-the-engraftment-of-bioengineered-vascular-networks
#18
Ruei-Zeng Lin, Chin Nien Lee, Rafael Moreno-Luna, Joseph Neumeyer, Breanna Piekarski, Pingzhu Zhou, Marsha A Moses, Monisha Sachdev, William T Pu, Sitaram Emani, Juan M Melero-Martin
Notwithstanding remarkable progress in vascular network engineering, implanted bioengineered microvessels largely fail to form anastomoses with the host vasculature. Here, we demonstrate that implants containing assembled human vascular networks (A-Grafts) fail to engraft due to their inability to engage non-inflammatory host neutrophils upon implantation into mice. In contrast, unassembled vascular cells (U-Grafts) readily engage alternatively polarized neutrophils, which in turn serve as indispensable mediators of vascular assembly and anastomosis...
2017: Nature biomedical engineering
https://www.readbyqxmd.com/read/28858383/a-carrel-patch-technique-for-renal-transplantation-in-cats
#19
Casey Budgeon, Robert J Hardie, Jonathan F McAnulty
OBJECTIVE: To evaluate the feasibility of a Carrel patch method in feline renal transplantation. STUDY DESIGN: Descriptive case series. ANIMALS: Nine healthy donor cats and 9 client recipient cats with chronic renal failure. METHODS: Renal transplantation was performed in 9 cats with chronic renal failure after collection of a donor's left kidney with a Carrel patch technique. A patch of donor aortic wall was removed with either 2 or 1 renal artery (ies) (n = 1 and 8 cats, respectively) central to the patch, with a cuff of tissue (≤1 mm) protruding from the base of the vessels...
August 31, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28854521/substitution-rate-based-screening-model-to-assess-stenosis-progression-in-experimental-stenotic-arteriovenous-grafts
#20
Chung-Dann Kan, Wei-Ling Chen, Chia-Hung Lin, Ming-Jui Wu, Yi-Chen Mai
An arteriovenous graft (AVG) has a higher patency rate in stenosis progression at the venous anastomosis site, which causes coexisting inflow and outflow stenoses. This leads to increases in blood pressure, flow velocity, and flow resistance, resulting in hemodialysis (HD) vascular access dysfunction from early clots and thrombosis to the progression of coexisting stenoses. To prevent vascular access complications such as inflow or outflow stenoses, this study proposes a novel examination method in an experimental AVG system using a substitution-rate based screening model...
August 15, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
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