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Luis Manuel Rodriguez-Mendez, Jose de Jesus Martinez-Ruiz, Ruben Perez-Manzo, Jorge Luis Corona-Hernandez, Juan Luis Alcala-Zermeno, Sergio Sanchez-Enriquez
The incidence of anterior cruciate ligament (ACL) injuries is rising every year. The autologous hamstring tendon graft, using semitendinosus tendon (SMT) and gracilis tendon (GR), is a common repair technique in the management of ACL injuries due to its multiple advantages. Using a final graft with a minimum diameter of 8 mm is necessary to avoid graft failure. The aim of this study was to find a correlation between preoperative ultrasound (USG) measurement of the SMT and GR tendon diameters (SMTd and GRd) and their actual diameters measured during the grafting procedure...
October 25, 2016: Journal of Knee Surgery
Louise Barbier, Manuela Cesaretti, Federica Dondero, François Cauchy, Linda Khoy-Ear, Takeshi Aoyagi, Emmanuel Weiss, Olivier Roux, Safi Dokmak, Claire Francoz, Catherine Paugam-Burtz, Ailton Sepulveda, Jacques Belghiti, François Durand, Olivier Soubrane
BACKGROUND: Older liver grafts have been considered in the past decade due to organ shortage. The aim was to compare outcomes after liver transplantation with either younger or older donors. METHODS: Patients transplanted in our center between 2004 and 2014 with younger donors (younger than 60 years; n = 253) were compared with older donors (older than 75 years; n = 157). Multiorgan transplantations, split grafts, or non-heart-beating donors were not included. RESULTS: Donors in the older group were mostly women deceased from stroke, and only 3 patients had experienced cardiac arrest...
November 2016: Transplantation
Firas Zahr Eldeen, Garrett R Roll, Carlos Derosas, Rajashankar Rao, Muhammad S Khan, Bridget K Gunson, James Hodson, Hynek Mergental, Ben-Hur Ferraz-Neto, John Isaac, Paolo Muiesan, Darius F Mirza, Asim Iqbal, M Thamara P R Perera
BACKGROUND: Whilst causes of hepatic artery thrombosis (HAT) after liver transplantation (LT) are multifactorial, early HAT (E-HAT) remains pertinent complication impacting on graft and patient survival. Currently there is no screening tool that would identify patients with increased risk of developing E-HAT. METHODS: We analyzed the native procoagulant state of LT recipients, identified through pretransplant thromboelastographic (TEG) data among other known risk factors, to identify risk factors for E-HAT...
November 2016: Transplantation
Marek Krawczyk, Michał Grąt, Rene Adam, Wojciech G Polak, Jurgen Klempnauer, Antonio Pinna, Fabrizio Di Benedetto, Franco Filipponi, Norbert Senninger, Aksel Foss, Sebastian Rufián-Peña, William Bennet, Johann Pratschke, Andreas Paul, Utz Settmacher, Giorgio Rossi, Mauro Salizzoni, Carlos Fernandez-Selles, Santiago T Martínez de Rituerto, Miguel A Gómez-Bravo, Jacques Pirenne, Olivier Detry, Pietro E Majno, Petr Nemec, Wolf O Bechstein, Michael Bartels, Silvio Nadalin, Francois R Pruvot, Darius F Mirza, Luigi Lupo, Michele Colledan, Giuseppe Tisone, Jan Ringers, Jorge Daniel, Ramón Charco Torra, Enrique Moreno González, Rafael Bañares Cañizares, Valentin Cuervas-Mons Martinez, Fernando San Juan Rodríguez, Sezai Yilmaz, Piotr Remiszewski
BACKGROUND: Liver transplantation is the most extreme form of surgical management of patients with hepatic trauma, with very limited literature data supporting its use. The aim of this study was to assess the results of liver transplantation for hepatic trauma. METHODS: This retrospective analysis based on European Liver Transplant Registry comprised data of 73 recipients of liver transplantation for hepatic trauma performed in 37 centers in the period between 1987 and 2013...
November 2016: Transplantation
Mehrdad Namdari, Ali Eatemadi
Heart valves are currently under thorough investigation in tissue engineering (TE) research. Mechanical and biological heart valve prostheses which are recently used have several shortcomings. While allogenic and xenogenic biological prostheses are related to graft rejection, degeneration and thrombosis, resulting in a high rate of reoperation. Mechanical prostheses on the other hand are based on metallic, carbon, and polymeric components, and require continuous treatment with anticoagulant, which result in adverse reactions, e...
October 22, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
Fumiaki Shima, Hirokazu Narita, Ayami Hiura, Hiroshi Shimoda, Mitsuru Akashi
There is considerable global demand for three-dimensional (3D) functional tissues which mimic our native organs and tissues for use as in vitro drug screening systems and in regenerative medicine. In particular, there has been an increasing number of patients who suffer from arterial diseases such as arteriosclerosis. As such, in vitro 3D arterial wall models that can evaluate the effects of novel medicines and a novel artificial graft for the treatment are required. In our previous study, we reported the rapid construction of 3D tissues by employing a Layer-by-Layer (LbL) technique and revealed their potential applications in the pharmaceutical fields and tissue engineering...
October 25, 2016: Journal of Biomedical Materials Research. Part A
Johan De Meester
From late nineteen nineties, the higher number of suitable renal transplant candidates has forced the transplant community to re-explore the whole spectrum of deceased donors after brain death (DBD) as well as after cardiac death (DCD); in practice, donors of older age and donors with more chronic diseases or "medical complexities". This new kidney donor population - finally defined as extended criteria donors (ECD) - currently comprises on average 20 to 25%. In his seminal paper in 2003 on the introduction of ECD in the US, Metzger et al...
October 25, 2016: Transplant International: Official Journal of the European Society for Organ Transplantation
Da Hae Lee, Bart Keymeulen, Robert Hilbrands, Zhidong Ling, Ursule Van de Velde, Daniel Jacobs-Tulleneers-Thevissen, Geert Maleux, Bruno Lapauw, Laurent Crenier, Christophe De Block, Chantal Mathieu, Daniel Pipeleers, Pieter Gillard
BACKGROUND: Induction therapy with a T cell depleting agent followed by mycophenolate mofetil (MMF) and tacrolimus (Tac) is presently the most frequently used immune suppression (IS) regimen in islet transplantation. This study assesses its safety and tolerability in nonuremic type 1 diabetic recipients. METHODS: Fifty-one patients (ages between 29-63 years) with high glycemic variability and problematic hypoglycemia received intraportal islet grafts under anti-thymocyte globulin (ATG)-MMF-Tac protocol...
October 25, 2016: Transplantation
Alexander Chern, Jacob B Hunter, Marc L Bennett
OBJECTIVE: To determine if cranioplasty techniques following translabyrinthine approaches to the cerebellopontine angle are cost-effective. STUDY DESIGN: Retrospective case series. PATIENTS: One hundred eighty patients with available financial data who underwent translabyrinthine approaches at a single academic referral center between 2005 and 2015. INTERVENTION: Cranioplasty with a dural substitute, layered fat graft, and a resorbable mesh plate secured with screws Main Outcome Measures: billing data was obtained for each patient's hospital course for translabyrinthine approaches and postoperative cerebrospinal fluid (CSF) leaks...
October 21, 2016: Otology & Neurotology
Franck Leclère, Emilie Desnouveaux, Vincent Casoli
INTRODUCTION: The goal of lower extremity reconstruction after trauma is the coverage of defects to give patients a healed wound and to let them resume their life, ambulate, and return to work while preventing amputation. In this article we describe an innovative use of Integra® for free flap pedicle coverage in lower extremity reconstruction. MATERIALS AND METHODS: Between January 2011 and December 2015, ten patients, 4 women and 6 men, underwent a lower limb reconstruction with an association of free flap and integra® to cover the flap pedicle...
October 25, 2016: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
Ting-Ting Cao, Xiu-Li Sun, Shi-Yan Wang, Xin Yang, Jian-Liu Wang
BACKGROUND: Pelvic organ prolapse (POP) is a major health concern that affects women. Surgeons have increasingly used prosthetic meshes to correct POP. However, the most common used is synthetic mesh, and absorbable mesh is less reported. This research aimed to evaluate the clinical effectiveness of porcine small intestinal submucosa (SIS). METHODS: Consecutive forty POP patients who met the inclusion criteria underwent pelvic reconstruction surgery with SIS between March 2012 and December 2013...
2016: Chinese Medical Journal
Wei Zhu, Chi Xu, Bu-Peng Ma, Zhi-Bo Zheng, Yu-Long Li, Qi Ma, Guo-Liang Wu, Xi-Sheng Weng
BACKGROUND: Three-dimensional (3D) printing technology holds great promise for treating diseases or injuries that affect human bones with enhanced performance over traditional techniques. Different patterns of design can lead to various mechanical properties and biocompatibility to various degrees. However, there is still a long way to go before we can fully take advantage of 3D printing technologies. METHODS: This study tailored 3D printed scaffolds with gelatin and platelets to maximize bone regeneration...
2016: Chinese Medical Journal
Y Law, Y C Chan, S Wk Cheng
INTRODUCTION: The use of a proximal Palmaz stent is a well-recognised technique to treat proximal endoleak in endovascular aortic repair. This study aimed to report the effectiveness and safety of an intra-operative Palmaz stent for immediate type 1a endoleak in Hong Kong patients. METHODS: This case series was conducted at a tertiary hospital in Hong Kong. In a cohort of 494 patients who underwent infrarenal endovascular aortic repair from July 1999 to September 2015, 12 (2...
October 24, 2016: Hong Kong Medical Journal, Xianggang Yi Xue za Zhi
Ricardo Paz-Fumagalli, Zhongzhi Jia, David M Sella, Mark J McKinney, Gregory Frey, Weiping Wang
Iatrogenic hepatic artery dissection is a serious complication that can progress to complete hepatic artery occlusion and graft loss. Restoration of arterial flow to the graft is urgent but the severity and extent of the dissection may interfere with endovascular techniques. The authors describe a technique of percutaneous retrograde transhepatic arterial puncture to regain access into the true lumen of the dissected hepatic artery to restore in-line flow to the liver graft. This article is protected by copyright...
October 25, 2016: American Journal of Transplantation
I Stefani, M A Asnaghi, J J Cooper-White, S Mantero
Cardiovascular diseases represent a major global health burden, with high rates of mortality and morbidity. Autologous grafts are commonly used to replace damaged or failing blood vessels, however such approaches are hampered by the scarcity of suitable graft tissue, donor site morbidity and poor long-term stability. Tissue engineering has been investigated as a means by which exogenous vessel grafts can be produced, with varying levels of success to date, a result of mismatched mechanical properties of these vessel substitutes and inadequate ex vivo vessel tissue genesis...
October 24, 2016: Journal of Tissue Engineering and Regenerative Medicine
Eva Schrezenmeier, Kayin Wu, Fabian Halleck, Lutz Liefeldt, Susanne Brakemeier, Friederike Bachmann, Susanne Kron, Klemens Budde, Michael Duerr
Recurrence of hepatitis C virus (HCV)-associated membranoproliferative glomerulonephritis (MPGN) in the kidney transplant may lead to continuous graft deterioration and the need for further renal replacement therapy. The novel direct acting antiviral agents (DAAs) allow a highly effective and interferon-free treatment option for chronic HCV infected patients. Data on the therapeutic safety and efficacy in HCV infected renal transplant patients are sparse, especially for patients with severe renal impairment...
October 25, 2016: American Journal of Transplantation
Pei-Li Wang, Lei Zhang, Shao-Li Wang, Qiao-Ning Yang, Zhu-Ye Gao, Jian-Peng Du, Da-Wu Zhang, Chang-Geng Fu, Feng Gu, Hao Xu, Li-Zhi Li, Cheng-Long Wang, Da-Zhuo Shi
OBJECTIVE: To evaluate the prognosis effect of Chinese herbal medicines (CHMs) for benefifiting qi and activating blood circulation adjunctive to conventional treatment in patients with acute coronary syndrome (ACS) after percutaneous coronary intervention (PCI). METHODS: A total of 702 patients with ACS who underwent PCI were enrolled and randomly assigned to receive conventional treatment plus CHMs for benefifiting qi and activating blood circulation (treatment group, 351 cases) or conventional treatment alone (control group, 351 cases) for 6 months...
October 24, 2016: Chinese Journal of Integrative Medicine
Ryszard Grenda
Delayed graft function (DGF) is commonly defined as the requirement for dialysis within the first 7 days following renal transplantation. The major underlying mechanism is related to ischaemia/reperfusion injury, which includes microvascular inflammation and cell death and apoptosis, and to the regeneration processes. Several clinical factors related to donor, recipient and organ procurement/transplantation procedures may increase the risk of DGF, including donor cardiovascular instability, older donor age, donor creatinine concentration, long cold ischaemia time and marked body mass index of both the donor and recipient...
October 24, 2016: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
Qian Jiao, Xi-Xun DU, Jun-Xia Xie, Hong Jiang
Neural stem cells (NSCs) offer great promise for the treatment of multiple neurodegenerative diseases. However, the survival and differentiation rates of grafted cells in the host brain need to be enhanced. In this regard, understanding of the underlying mechanism of NSCs survival and death is of great importance for the implications of stem cell-based therapeutic application in the treatments of neurological disorders. Autophagy is a conserved proteolytic mechanism required for maintaining cellular homeostasis, which can affect NSCs fate through regulating their biological behaviors, such as survival and proliferation...
October 25, 2016: Sheng Li Xue Bao: [Acta Physiologica Sinica]
Gisela Reinfeldt Engberg, Clara Ibel Chamorro, Agneta Nordenskjöld, Magdalena Fossum
In order to develop autologous tissue engineering of the whole wall in the urinary excretory system, we studied the regenerative capacity of the muscular bladder wall. Smooth muscle cell expansion on minced detrusor muscle in vitro and in vivo with or without urothelial tissue was studied. Porcine minced detrusor muscle and urothelium were cultured in vitro under standard culture conditions for evaluation of the explant technique and in collagen for tissue sectioning and histology. Autografts of minced detrusor muscle with or without minced urothelium were expanded on 3D cylinder moulds by grafting into the subcutaneous fat of the pig abdominal wall...
2016: BioMed Research International
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