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126 papers 25 to 100 followers Vascularized composite allotransplantation of the face
By Mafer Amber QxMD ambassador, Mexican med student currently in 4° year, doing clinical research in vascularized composite allotransplantation
https://www.readbyqxmd.com/read/28390109/vascularized-composite-allograft-vca-donation-and-transplantation-a-survey-of-public-attitudes-in-the-united-states
#1
James R Rodrigue, David Tomich, Aaron Fleishman, Alexandra K Glazier
Vascularized composite allograft (VCA) transplantation has emerged as a groundbreaking surgical intervention to return identity and function following traumatic injury, congenital deformity, or disfigurement. While public attitudes toward traditional organ/tissue donation are favorable, little is known about attitudes toward VCA donation and transplantation. A survey was conducted of 1,485 U.S. residents in August 2016 to assess VCA donation attitudes. Participants also completed the Revised Health Care System Distrust Scale...
April 8, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28371289/prolonged-cold-ischemia-time-results-in-local-and-remote-organ-dysfunction-in-a-murine-model-of-vascularized-composite-transplantation
#2
Néha Datta, Sean G Devaney, Ronald W Busuttil, Kodi Azari, Jerzy W Kupiec-Weglinski
Vascularized composite allotransplantation (VCA) is a viable reconstructive option for complex tissue defects. Although grafts with large muscular component may be uniquely susceptible to ischemia/reperfusion (I/R) syndrome, the safe cold ischemia time in VCA has not been established. We investigated the effects of cold ischemia on innate immune response and recipient survival in a murine orthotopic hindlimb transplantation model. Surprisingly, mice receiving grafts exposed to 6h or longer of cold storage demonstrated reduced survival and massive elevations in serum creatinine, BUN and creatine kinase, as compared to 1h of cold storage recipients...
March 30, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28371193/chronic-allograft-deterioration-a-clinical-reality-in-vascularized-composite-allotransplantation
#3
EDITORIAL
N Krezdorn, B Pomahac
No abstract text is available yet for this article.
March 30, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28303433/the-decade-of-face-transplant-outcomes
#4
Maria Siemionow
At the 10th year anniversary of the first face transplantation, 37 patients worldwide, were the recipients of faces coming from human donors. Five patients died due to complications, noncompliance with immunosuppressive medications and development of cancer. Despite the initial debates and ethical concerns, face transplantation became a clinical reality with satisfactory functional outcomes. The areas of controversy still include the impact of life-long immunosuppression on otherwise healthy patients as well as the selection process of face transplant candidates...
May 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28252516/decellularization-of-the-porcine-ear-generates-a-biocompatible-nonimmunogenic-extracellular-matrix-platform-for-face-subunit-bioengineering
#5
Jérôme Duisit, Giuseppe Orlando, Donovan Debluts, Louis Maistriaux, Daela Xhema, Yann-Alex J de Bisthoven, Cesare Galli, Andrea Peloso, Catherine Behets, Benoît Lengelé, Pierre Gianello
OBJECTIVE: The purpose of this study was to assess whether perfusion-decellularization technology could be applied to facial grafts. BACKGROUND: Facial allotransplantation remains an experimental procedure. Regenerative medicine techniques allow fabrication of transplantable organs from an individual's own cells, which are seeded into extracellular matrix (ECM) scaffolds from animal or human organs. Therefore, we hypothesized that ECM scaffolds also can be created from facial subunits...
March 1, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28141920/face-transplantation-partial-graft-loss-of-the-first-case-10-years-later
#6
E Morelon, P Petruzzo, J Kanitakis, S Dakpé, O Thaunat, V Dubois, G Choukroun, S Testelin, J-M Dubernard, L Badet, B Devauchelle
Ten years after the first face transplantation, we report the partial loss of this graft. After two episodes of acute rejection (AR) occurred and completely reversed in the first posttransplantation year, at 90 months posttransplantation the patient developed de novo class II donor-specific antibodies, without clinical signs of AR. Some months later, she developed several skin rejection episodes treated with steroid pulses. Despite rapid clinical improvement, some months later the sentinel skin graft underwent necrosis...
January 31, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28138125/face-transplant-in-an-advanced-neurofibromatosis-type-1-patient
#7
Łukasz Krakowczyk, Adam Maciejewski, Cezary Szymczyk, Krzysztof Oleś, Stanisław Półtorak
BACKGROUND The human face is a one-of-a-kind structure with unique morphology, complexity, and function, in which different subunits are not even similar to other parts of the body. Therefore, extended complex deficits of the face are usually difficult to reconstruct, and autologous tissue restoration is generally not able to give a satisfactory aesthetic and functional outcome. The main goal of face allotransplantation is to restore symmetry, contour, and appearance as well as function of the face, especially control of orbicularis oculi and oris muscle physiology...
January 31, 2017: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/28058213/face-transplantation-anesthetic-challenges
#8
REVIEW
Aparna Dalal
Face transplantation is a complex vascular composite allotransplantation (VCA) surgery. It involves multiple types of tissue, such as bone, muscles, blood vessels, nerves to be transferred from the donor to the recipient as one unit. VCAs were added to the definition of organs covered by the Organ Procurement and Transplantation Network Final Rule and National Organ Transplant Act. Prior to harvest of the face from the donor, a tracheostomy is usually performed. The osteotomies and dissection of the midface bony skeleton may involve severe hemorrhagic blood loss often requiring transfusion of blood products...
December 24, 2016: World Journal of Transplantation
https://www.readbyqxmd.com/read/28032849/reflections-on-a-decade-of-face-transplantation
#9
Giorgio Giatsidis, Indranil Sinha, Bohdan Pomahac
On November 27, 2005, Isabelle Dinoire underwent the world's first partial face transplant in Amiens (France) after a dog attack had left her face severely disfigured. The abrupt surgical leap found the medical community and society unprepared to deal with the scientific, ethical, and societal implications of a surgical procedure that was striving to transition from sci-fi novels to science. Today, 10 years and over 35 transplants later, public opinion has become accustomed to the concept of "face restoration" through transplantation...
April 26, 2016: Annals of Surgery
https://www.readbyqxmd.com/read/28027248/quality-of-life-after-face-transplantation-outcomes-assessment-tools-and-future-directions
#10
Mario A Aycart, Harriet Kiwanuka, Nicco Krezdorn, Muayyad Alhefzi, Ericka M Bueno, Bohdan Pomahac, Megan L Oser
BACKGROUND: Face transplantation has emerged as a clinical reality for the restoration of complex facial defects. Critical to the advancement of the burgeoning field of reconstructive transplantation is the quality of the methods used to measure and report the impact of face transplantation on quality of life. METHODS: A systematic search using PubMed and EMBASE was conducted for all studies matching the a priori inclusion criteria from 2005 through 2015. Bibliographies of included studies were also reviewed...
January 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28024304/nasal-unit-transplantation-a-cadaveric-anatomical-feasibility-study
#11
Amir H Dorafshar, Gerhard S Mundinger, Brent Robinson, Sami Tuffaha, Gerald Brandacher, Patrick Byrne, Robert L Walton
Background The science and technical acumen in the field of vascularized composite allotransplantation has progressed rapidly over the past 15 years, and transplantation of specialized units of the face, such as the nose, appears possible. No study to date has evaluated the technical feasibility of isolated nasal unit transplantation (NUT). In this study, we explore the anatomy and technical specifics of NUT. Methods In this study, four fresh cadaver heads were studied. Bilateral vascular pedicle dissections were performed in each cadaver...
May 2017: Journal of Reconstructive Microsurgery
https://www.readbyqxmd.com/read/28005656/skeletal-changes-of-an-osteomyocutaneous-facial-allograft-five-years-following-transplantation
#12
Bahar Bassiri Gharb, Antonio Rampazzo, Gaby Doumit, Steven Bernard, Maria Siemionow, Francis Papay, Risal Djohan
BACKGROUND: More than 30 face transplantations have been performed worldwide, most including part of the facial skeletal framework. In this study, the modifications of the skeletal component of a facial allograft were evaluated. METHODS: Standard head computed tomography (CT) scans, CT angiogram, and bone mineral densitometry were evaluated. Cephalometric analysis was performed. The pre and postoperative CT images were overlapped and the skeletal changes were expressed in a numeric and color-coded scale...
March 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27997448/the-retroauricular-approach-to-the-facial-nerve-trunk
#13
Jordan W Swanson, Jason W Yu, Jesse A Taylor, Stephen Kovach, Suhail Kanchwala, Laurent Lantieri
BACKGROUND: Exposure of the common trunk of the facial nerve has traditionally been approached based on principles of parotidectomy, which is associated with high rates of facial nerve palsy and landmarks that may be unreliable. On the basis of experience gained with vascularized composite allotransplantation of the face, the authors propose a retroauricular approach that may be more time-effective and safe. METHODS: In the proposed retroauricular facial nerve approach, an incision is made posterior to the ear in the retroauricular sulcus, and dissection proceeds anteriorly to the mastoid fascia to the base of the conchal bowl...
March 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27941036/the-miracle-of-face-transplantation-after-10-years
#14
REVIEW
Maria Siemionow
INTRODUCTION: At the 10th year anniversary of the first face transplantation, there are currently 36 patients worldwide, who are the recipients of faces coming from human donors. AREAS OF AGREEMENT: Despite the initial debates and ethical concerns, face transplantation became a clinical reality with satisfactory functional outcomes. AREAS OF CONTROVERSY: The areas of controversy still include the impact of lifelong immunosuppression on otherwise healthy patients as well as the selection process of face transplant candidates...
December 2016: British Medical Bulletin
https://www.readbyqxmd.com/read/27941098/from-face-off-to-the-face-race-the-case-of-isabelle-dinoire-and-the-future-of-the-face-transplant
#15
Fay Bound Alberti
Isabelle Dinoire, the world's first face transplant recipient has died, 11 years after the procedure that brought her unwanted fame and media attention. While medical debates centre mainly on ethical and medical concerns like immunosuppressant use, the psychological hazards of face transplants are still being overlooked. Using medical and media reports and examining the gendering of clinical and patient narratives, this article argues we need to look again at face transplants and their motivation for individuals as well as society...
December 9, 2016: Medical Humanities
https://www.readbyqxmd.com/read/27888277/looking-the-world-in-the-face-the-benefits-and-challenges-of-facial-transplantation-for-blind-patients
#16
Katrina A Bramstedt, Jan A Plock
Total bilateral blindness in the setting of facial transplantation is a controversial matter. Some transplant teams exclude these candidates, while others accept them onto their facial transplant waiting list. Using 3 cases, the clinical and ethical complexity of total bilateral blindness is explored. Guidance (medical, psychological, and social) for total bilateral blindness as both an inclusion and exclusion criterion is provided, with the stipulation that total bilateral blindness should not be an automatic exclusion criterion for facial transplantation...
November 25, 2016: Progress in Transplantation
https://www.readbyqxmd.com/read/27893628/watershed-areas-in-face-transplantation
#17
Bahar Bassiri Gharb, Russell S Frautschi, Brianna C Halasa, Gaby D Doumit, Risal S Djohan, Steven L Bernard, Brian R Gastman, Maria Z Siemionow, Francis A Papay, Antonio Rampazzo
BACKGROUND: Maxillary artery has traditionally been considered the main blood supply of the facial skeleton. However, the deep and concealed location makes the harvest of facial allografts based on this artery challenging, giving preference to the facial artery. There is growing evidence that the junction between the hard and soft palate may represent a watershed area in facial artery based allografts. The aim of this study was to review the occurrence of partial allograft necrosis and modify the available craniofacial techniques allowing for a reliable harvest of maxillary artery based facial allografts...
November 21, 2016: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27801681/immunological-effect-of-skin-allograft-in-burn-treatment-impact-on-future-vascularized-composite-allotransplantation
#18
Rebecca M Garza, Barry H Press, Dolly B Tyan, Yvonne L Karanas, Gordon K Lee
Skin allografts are the gold standard in temporary burn wound coverage, but allografts are hypothesized to place a high antigenic load on recipients. This project aims to determine the degree of human leukocyte antigen sensitization in burn patients treated with allografts. Serum was obtained from nine adult, nontransfused, and nontransplanted burn patients treated with allografts. Group 1 included patients tested in the acute burn period, while group 2 included different patients tested months to years after injury...
May 2017: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/27755395/an-anatomical-murine-model-of-heterotopic-periorbital-subunit-transplantation
#19
Bowen Gao, Qingxiong Yu, Feng Xie, Lingling Sheng, Xiyuan Mao, Qingfeng Li, Hainan Zhu
BACKGROUND: Conventional reconstructive methods fail to achieve satisfactory results in total eyelid defect cases. Vascularized composite tissue allotransplantation might provide both good appearance and function for these patients. The structure of the eyelid is exceptional because it simultaneously consists of skin, connective tissue, the striated muscle, fiber structure, aponeuroses, and mucosa. Thus, before clinical application of eyelid allotransplantation, more experiments are needed to clarify the impact of ischemia, immunal suppressive agents, and deinnervation effects on these sophisticated structures...
October 13, 2016: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27753587/face-transplantation-in-a-highly-sensitized-recipient
#20
Anil Chandraker, Ramon Arscott, George Murphy, Christine Lian, Ericka Bueno, Francisco Marty, Helmut Rennke, Edgar Milford, Stefan Tullius, Bodhan Pomahac
No abstract text is available yet for this article.
October 2016: Military Medicine
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