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https://www.readbyqxmd.com/read/28624422/endovascular-proximal-forearm-arteriovenous-fistula-for-hemodialysis-access-results-of-the-prospective-multicenter-novel-endovascular-access-trial-neat
#1
Charmaine E Lok, Dheeraj K Rajan, Jason Clement, Mercedeh Kiaii, Ravi Sidhu, Ken Thomson, George Buldo, Christine Dipchand, Louise Moist, Joanna Sasal
BACKGROUND: Hemodialysis arteriovenous fistulas (AVFs) are suboptimally used primarily due to problems with maturation, early thrombosis, and patient nonacceptance. An endovascular approach to fistula creation without open surgery offers another hemodialysis vascular access option. STUDY DESIGN: Prospective, single-arm, multicenter study (Novel Endovascular Access Trial [NEAT]). SETTINGS & PARTICIPANTS: Consecutive adult non-dialysis-dependent and dialysis-dependent patients referred for vascular access creation at 9 centers in Canada, Australia, and New Zealand...
June 9, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28621637/surgical-techniques-and-procedures-for-kidney-transplant-recipients-with-severe-atherosclerosis
#2
Koji Nanmoku, Yoshihiko Watarai, Shunji Narumi, Norihiko Goto, Takayuki Yamamoto, Makoto Tsujita, Takahisa Hiramitsu, Akio Katayama, Takaaki Kobayashi, Kazuharu Uchida
OBJECTIVES: Atherosclerosis is becoming a more common problem for dialysis patients. Therefore, transplant surgeons are faced with the need to develop surgical techniques and procedures for severe atherosclerosis. This study aimed to clarify the clinical features, the usefulness of examinations, and operative procedures for kidney transplant recipients with the complication of severe atherosclerosis. MATERIALS AND METHODS: Among 220 kidney transplant candidates, 13 patients (severe atherosclerosis group) were predicted complications due to arterial calcification in the bilateral iliac arterial system using a computed tomographic scan...
June 16, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28616681/frequency-and-anatomical-features-of-the-mandibular-lingual-foramina-systematic-review-and-meta-analysis
#3
REVIEW
Sara Bernardi, Serena Bianchi, Maria Adelaide Continenza, Guido Macchiarelli
Lingual mandibular foramina are peculiar anatomical variations often present on the bone surface of the inferior jaw. These structures host vascular and nervous anastomosis deriving from the branches of the submental artery, lingual artery, and the mylohyoid nerve. Reports pointed out intra-operative massive bleeding accidents during implant interventions occurred in this area. The aim of this systematic review and meta-analysis was to summarize quantitatively the features of the lingual foramina on the midline of the inferior jaw...
June 14, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28615828/simple-way-of-splinting-the-arm-following-vascular-anastomosis-in-the-axilla
#4
Pravin H P Kumar, Vijay Dattatrya Kadam, Sushil Nahar, Rahul Krishnarao Patil, Ashok Raj Koul
No abstract text is available yet for this article.
January 2017: Indian Journal of Plastic Surgery: Official Publication of the Association of Plastic Surgeons of India
https://www.readbyqxmd.com/read/28614918/the-significance-of-sdf-1alpha-cxcr4-axis-in-in-vivo-angiogenic-ability-of-human-periodontal-ligament-stem-cells
#5
Yoon-Kyung Bae, Gee-Hye Kim, Jae Cheoun Lee, Byoung-Moo Seo, Kyeung-Min Joo, Gene Lee, Hyun Nam
Periodontal ligament stem cells (PDLSCs) are multipotent stem cells derived from periodontium and have mesenchymal stem cell (MSC)-like characteristics. Recently, the perivascular region was recognized as the developmental origin of MSCs, which suggests the in vivo angiogenic potential of PDLSCs. In this study, we investigated whether PDLSCs could be a potential source of perivascular cells, which could contribute to in vivo angiogenesis. PDLSCs exhibited typical MSC-like characteristics such as the expression pattern of surface markers (CD29, CD44, CD73, and CD105) and differentiation potentials (osteogenic and adipogenic differentiation)...
June 14, 2017: Molecules and Cells
https://www.readbyqxmd.com/read/28613221/clinicopathologic-correlation-of-retinal-angiomatous-proliferation-treated-with-ranibizumab
#6
Alison H Skalet, Audra K Miller, Michael L Klein, Andreas K Lauer, David J Wilson
PURPOSE: To describe histopathologic features of an eye with retinal angiomatous proliferation (RAP) secondary to age-related macular degeneration treated with serial ranibizumab injections and to correlate these findings with spectral domain optical coherence tomography. METHODS: Histopathologic features from serial sections through the globe of a 93-year-old man with age-related macular degeneration were studied and compared with spectral domain optical coherence tomography images obtained 7 weeks before his death...
April 26, 2017: Retina
https://www.readbyqxmd.com/read/28608190/endoluminal-laser-assisted-vascular-anastomosis-an-in-vivo-study-in-a-pig-model
#7
Zacharia Mbaidjol, David Kiermeir, Annemarie Schönfeld, Jörg Arnoldi, Martin Frenz, Mihai A Constantinescu
Microvascular surgery is time consuming and requires high expertise. Laser-assisted vascular anastomosis (LAVA) is a promising sutureless technique that has the potential to facilitate this procedure. In this study, we evaluate the handling of our soldering material and the 1-week patency rate in a porcine model. Six pigs were subjected to LAVA. For each pig, the saphenous artery on one side was transected while the contralateral side was used as control. A porous polycaprolactone scaffold soaked in 40% (w/w) bovine serum albumin solution in combination with 0...
June 12, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28607785/pseudoaneurysm-of-the-anterior-tibial-artery-following-ankle-arthroscopy-in-a-soccer-player
#8
Ichiro Tonogai, Tetsuya Matsuura, Toshiyuki Iwame, Keizo Wada, Tomoya Takasago, Tomohiro Goto, Daisuke Hamada, Yohei Kawatani, Eiki Fujimoto, Tetsuya Kitagawa, Shyoichiro Takao, Seiji Iwamoto, Moriaki Yamanaka, Masafumi Harada, Koichi Sairyo
Ankle arthroscopy carries a lower risk of vascular complications when standard anterolateral and anteromedial portals are used. However, the thickness of the fat pad at the anterior ankle affords little protection for the thin-walled anterior tibial artery, rendering it susceptible to indirect damage during procedures performed on the anterior ankle joint. To our knowledge, only 11 cases of pseudoaneurysm involving the anterior tibial artery after ankle arthroscopy have been described in the literature. Here we reported a rare case of a 19-year-old soccer player who presented with pseudoaneurysm of the anterior tibial artery following ankle arthroscopy using an ankle distraction method and underwent anastomosis for the anterior tibial artery injury...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/28600750/intra-operative-hemorrhage-due-to-hyperperfusion-during-direct-revascularization-surgery-in-an-adult-patient-with-moyamoya-disease-a-case-report
#9
Hiroki Uchida, Hidenori Endo, Miki Fujimura, Toshiki Endo, Kuniyasu Niizuma, Teiji Tominaga
Hemorrhagic complication is one of the notable surgical complications of the revascularization surgery for moyamoya disease (MMD). Cerebral hyperperfusion (CHP) has been considered as the underlying cause of this complication. It mostly occurs several days after surgery, but the intra-operative hemorrhage immediately after bypass has not been reported previously. A 21-year-old woman presented right thalamic hemorrhage and was diagnosed as having MMD by cerebral angiography. In light of the location of the hemorrhage at the vascular territory of posterior circulation and the manifestation of transient ischemic attack during the follow-up period, she underwent revascularization surgery to prevent future ischemic attack and rebleeding...
June 9, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/28597797/percutaneous-intervention-for-central-shunts-new-routes-new-strategies
#10
Bjorn Cools, Stephen C Brown, Derize E Boshoff, Benedicte Eyskens, Ruth Heying, Filip Rega, Bart Meyns, Marc Gewillig
Introduction In traditional locations, the standard Blalock-Taussig shunt presents numerous technical difficulties for percutaneous intervention. We changed our strategy to a central type shunt (Laks-type) with end-to-side pulmonary and side-to-side aortic anastomosis. The aim of this study was to determine whether this modified strategy would allow easier percutaneous manipulation in patients with small pulmonary arteries. Methods All children with a stretchable central vascular graft who required any form of percutaneous intervention were prospectively enrolled in the study...
April 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/28594742/outcomes-of-lymphedema-microsurgery-for-breast-cancer-related-lymphedema-with-or-without-microvascular-breast-reconstruction
#11
Holger Engel, Chia-Yu Lin, Jung-Ju Huang, Ming-Huei Cheng
OBJECTIVE: This study investigated the outcome of lymphedema microsurgery with or without microsurgical breast reconstruction for breast cancer-related lymphedema (BCRL). BACKGROUND: Complete decongestive therapy, lymphovenous anastomosis, and vascularized lymph node flap transfer are the 3 major treatment modalities for BCRL. Releasing axillary contracture and transferring a free flap may potentially improve the BCRL. METHODS: Between 2004 and 2015, 124 patients with BCRL who underwent 3 treatment modalities without or with microsurgical breast reconstruction were included in this study as groups I and II, respectively...
June 7, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28579068/the-impact-of-age-on-urethroplasty-success
#12
Mya Levy, Ronak A Gor, Alex J Vanni, Kristian Stensland, Bradley A Erickson, Jeremy B Myers, Bryan B Voelzke, Thomas G Smith, Benjamin N Breyer, Christopher McClung, Nejd F Alsikafi, Yunhua Fan, Sean P Elliott
OBJECTIVE: To determine if age is an independent predictor of surgical success in patients undergoing urethroplasty. Urethroplasty performed by excision and primary anastomosis depends on vascular collateralization. Successful augmented urethroplasty depends on graft neovascularization. Older patients have more comorbid conditions including peripheral vascular disease associated with reduced penile blood flow. MATERIALS AND METHODS: A retrospective review of urethroplasties from 11 institutions...
June 1, 2017: Urology
https://www.readbyqxmd.com/read/28560125/learning-microvascular-anastomosis-in-low-socioeconomic-vascular-models-during-residency
#13
Karuna Tamrakar
Microvascular anastomosis procedure has become an essential practice for the management of most neurovascular diseases. Increasing use of neurosurgical techniques necessitates intensive laboratory training in microsurgery. Umbilical artery is used for quantifiable representation to set up microvascular anastomosis model for the beginners. These arteries are found to be between 4 and 5 mm in diameter. Chicken wings are set up as second anastomosis model. Five to six centimeter long brachial artery extracted from a chicken is measured approximately 1-2 mm in diameter...
April 27, 2017: Curēus
https://www.readbyqxmd.com/read/28557287/epidemiology-and-clinical-features-of-inflammatory-retinal-vascular-occlusions-pooled-data-from-two-tertiary-referral-institutions
#14
Aniruddha Agarwal, Samendra Karkhur, Kanika Aggarwal, Alessandro Invernizzi, Ramandeep Singh, Mangat R Dogra, Vishali Gupta, Amod Gupta, Diana V Do, Quan D Nguyen
IMPORTANCE: In a subset of patients with retinal vasculitis, there is occlusion of blood flow through the retinal vessels. These eyes are at high risk of sight-threatening complications. BACKGROUND: To characterize epidemiology, clinical course, treatment and outcomes of occlusive retinal vasculitis (ORV). DESIGN: Retrospective study PARTICIPANTS: Seventy-seven uveitis patients with ORV at two large tertiary-care institutions (the USA and India)...
May 29, 2017: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/28549521/techniques-of-parenchyma-sparing-hepatectomy-for-the-treatment-of-tumors-involving-the-hepatocaval-confluence-a%C3%A2-reliable-way-to-assure-an-adequate-future-liver-remnant-volume
#15
Lucio Urbani, Piero Colombatto, Riccardo Balestri, Gabriella Licitra, Chiara Leoni, Francesco Forfori, Gianluca Masi, Piero Boraschi, Maura Castagna, Piero Buccianti
BACKGROUND: Parenchyma-sparing hepatectomy techniques allow a lesser volume resection (<3 adjacent segments) for tumors involving the hepatic veins at the hepatocaval confluence, assuring adequate volume of the future liver remnant. We report the ability to perform parenchyma-sparing hepatectomy as planned from the preoperative imaging and the type of vascular intervention used to preserve hepatic outflow. METHODS: We analyzed 60 consecutive parenchyma-sparing hepatectomies in 54 patients for 7 primary and 53 metastatic tumors (48 colorectal), located in segments I, VII, VIII, or IVa and involving the hepatocaval confluence...
May 24, 2017: Surgery
https://www.readbyqxmd.com/read/28544979/preoperative-left-hepatic-lobe-devascularisation-to-minimize-perioperative-bleeding-in-a-jehovah-s-witness-undergoing-left-hepatectomy
#16
Laurence Weinberg, Georgina Hanus, Jonathan Banting, Diana Abu-Ssaydeh, Manfred Spanger, Su Kah Goh, Vijayaragavan Muralidharan
INTRODUCTION: Major liver resection in a Jehovah's Witness presents unique clinical challenges requiring multimodal blood minimization strategies to reduce perioperative complications. We report a case where complete left hepatic lobe devascularisation was undertaken to minimize bleeding in a Jehovah's Witness undergoing left hepatectomy. PRESENTATION OF CASE: A 65-year-old male Jehovah's Witness presented for open left hepatectomy for a large left-sided hepatocellular carcinoma involving segment IV of the liver...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28539296/-establishment-of-a-rabbit-model-of-small-diameter-vascular-graft-replacement
#17
Jia-Qing Zhang, Kun-Tang Chen, Fu-Wei Zhang, Shao-Bin Li, Yuan-Zhou Wu, Jing Feng, Wu-Jun Wang, Yu-Sheng Yan
OBJECTIVE: To establish an rabbit model that mimics the hemodynamics of the bypass graft after coronary artery bypass surgery. METHODS: Sixteen New Zealand rabbits were randomly divided into two groups for abdominal aortic artery replacement using a 3-cm-long ePTFE graft with an inner diameter 4 mm through an incision at 1/3 from the middle to the lower part of the abdomen (group A) or in the lower abdomen (group B). The general conditions of the rabbits, operative time, number of collateral vessels that needed to be ligated, rate of massive intraoperative bleeding, fluctuation of vascular anastomosis after surgery, patency rate of the graft on day 7 after the operation were compared between the two groups...
May 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28538566/predicting-thrombosis-formation-in-1-mm-diameter-arterial-anastomoses-with-transit-time-ultrasound-technology
#18
Gabrielle Shaughness, Collin Blackburn, Alberto Ballestín, Yelena Akelina, Jeffrey A Ascherman
BACKGROUND: Thrombosis is a common source of failure in anastomoses, flaps, and vascular grafts. Ensuring vessel patency is critical to the success of microvascular procedures. Any tool that can accurately predict the patency of an anastomosis intraoperatively would enable the surgeon to detect and correct flow restrictions while the patient is still in the operating room. METHODS: The authors used transit-time ultrasound technology in this pilot study to investigate whether a minimal cutoff value for quantitative postoperative blood flow (in milliliters per minute) could be established that would reliably predict sustained vessel patency at 24 hours postoperatively...
June 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28536807/prognostic-factors-for-enteroatmospheric-fistula-in-open-abdomen-treated-with-negative-pressure-wound-therapy-a-multicentre-experience
#19
Guillaume Giudicelli, A Rossetti, C Scarpa, N C Buchs, R Hompes, R J Guy, K Ukegjini, P Morel, F Ris, M Adamina
BACKGROUND: Reductions in mortality were reported with negative pressure wound therapy for laparostomy. However, some authors have voiced concern over an increased risk of enteroatmospheric fistulae. In this retrospective study, we hypothesized that surgical and metabolic derangements could increase the incidence of enteroatmospheric fistulae. We aimed to assess our experience and report long-term outcomes. METHODS: A multicentre review of all patients with a laparostomy managed with negative pressure wound therapy between 2005 and 2015 was undertaken...
May 23, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28532969/lip-reconstruction-using-a-functioning-serratus-anterior-free-flap-preliminary-study
#20
A O Gundeslioglu, E C Karadag, I Inan, L Jasharllari, M N Selimoglu, F Guney, B Yuruten, M Bekerecioglu
Reconstructive surgery to the lips requires the replacement of defective tissues with similarly functioning tissues. While non-dynamic free tissue transfers provide adequate lower lip reconstruction, improved benefits may be obtained with innervated free muscle flaps. This study reports the use of innervated serratus anterior muscle free flaps for lip reconstruction in five patients. All patients had squamous cell carcinoma of either the upper or lower lip. After resection of the tumours, the resultant defects comprised two-thirds of the lips...
May 19, 2017: International Journal of Oral and Maxillofacial Surgery
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