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https://www.readbyqxmd.com/read/28212127/surgical-management-of-mandibular-intraosseous-schwannomas
#1
Anthony DeLeonibus, Bahar Bassiri Gharb, Francis Papay, James E Zins, Antonio Rampazzo
Intraosseous schwannomas of the mandible are rare tumors that usually arise from peripheral nerve sheaths of the main trunk or branches of the inferior alveolar nerve (IAN).A systematic review of the English literature through PubMed was conducted from 1945 to 2016. Forty-nine patients of mandibular intraosseous schwannomas were identified. The most common location of the tumor was the posterior mandible (61.2%). There were 28 patients in whom the tumor involved the IAN (57.1%). The most commonly performed procedures included enucleation through a mucoperiosteal flap and a bone window (73%), curettage (10%), segmental mandibulectomy (10%), and sagittal split ramus osteotomy (6%)...
February 16, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28211034/infectious-complications-as-the-leading-cause-of-death-after-kidney-transplantation-analysis-of-more-than-10-000-transplants-from-a-single-center
#2
Flávio de Castro Rodrigues Ferreira, Marina Pontello Cristelli, Mayara Ivani Paula, Henrique Proença, Claudia Rosso Felipe, Helio Tedesco-Silva, José Osmar Medina-Pestana
AIM: To identify specific causes of graft failure in a large sample of kidney transplant patients from a middle-income, developing country. METHODS: Retrospective cohort study analyzing all consecutive single kidney transplants (KTs) performed at a single center in Brazil between January 1st 1998 and December 31st 2013. The database closing date was December 31st 2014. RESULTS: Out of 10,400 KTs, there were 1191 (11.45%) deaths with a functioning graft, 40 cases (0...
February 17, 2017: Journal of Nephrology
https://www.readbyqxmd.com/read/28210413/orbital-adherence-syndrome-following-the-use-of-titanium-precontoured-orbital-mesh-for-the-reconstruction-of-posttraumatic-orbital-floor-defects
#3
Geraldine Hwee Ping Lee, Samuel Yew Ming Ho
Orbital blowout fractures are a common occurrence following orbital trauma. Depending on the size of the defect and the contents that have herniated or incarcerated, possible sequelae include enophthalmos, diplopia, dystopia, and entrapment. Surgical intervention aims to prevent or alleviate this through the use of a bone graft or an alloplastic implant to reconstitute the continuity of the orbit. However, in doing so, the implant itself may result in the unexpected adherence of the periorbita, resulting in orbital adherence syndrome...
March 2017: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/28207510/endovascular-repair-of-bilateral-common-iliac-artery-aneurysms-using-gore-excluder-iliac-branch-endoprosthesis-without-aortobi-iliac-stent-graft-conjunction-a-case-report
#4
Vincenzo Ardita, Alessia Giaquinta, Massimiliano Veroux, Angelo Sanfiorenzo, Carla Virgilio, Giuseppe D'Arrigo, Pierfrancesco Veroux
INTRODUCTION: Bilateral common iliac artery (CIA) aneurysm (CIAA) is a rare entity. In the past decade, different endovascular approaches have been adopted for patients with several comorbidities or unfit for open repair (OR). Recently, the use of iliac branch stent graft has been proposed, resulting in satisfactory patency rates and decrease in morbidity. Currently, according to instruction for use, the iliac branch stent graft is to be used with aortobi-iliac stent graft conjunction...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28204937/a-new-approach-to-upper-eyelid-reconstruction
#5
A Bulla, C Vielà, L Fiorot, A Bolletta, E Pancrazi, G V Campus
BACKGROUND: Reconstruction of large defects of the upper eyelid is challenging because of its complex anatomy and specialized function. The aim of this work is to develop a single-stage reconstruction procedure based on a new approach. The technique consists of the advancement of an orbicularis oculi myocutaneous flap designed within the blepharoplasty skin excision pattern. METHODS: After the tumor's excision is completed with clear margins, the borders of the flap are incised down to the submuscular plane inside the classical pattern of upper eyelid blepharoplasty...
February 15, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28203585/can-grafts-provide-superior-tendon-healing-and-clinical-outcomes-after-rotator-cuff-repairs-a-meta-analysis
#6
Yohei Ono, Diego Alejandro Dávalos Herrera, Jarret M Woodmass, Richard S Boorman, Gail M Thornton, Ian K Y Lo
BACKGROUND: Arthroscopic repair of large to massive rotator cuff tears commonly retear. To improve healing rates, a number of different approaches have been utilized, including the use of grafts, which may enhance the biomechanical and biologic aspects of the repair construct. However, the outcomes after the use of grafts are diverse. PURPOSE: To systematically review the literature for large to massive rotator cuff tears to determine whether the use of grafts generally provides superior tendon healing and clinical outcomes to the repairs without grafts...
December 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28203515/curvilinear-segmental-mandibular-reconstruction-utilizing-distraction-osteogenesis-and-early-open-callus-manipulation
#7
Alberto Rocha Pereira, Paulo Neves, José Rosa, Scott Bartlett
The authors present a new technique for reconstruction of large curvilinear mandibular defects with distraction osteogenesis and early open callus manipulation. In phase 1, transport disks are created from mandibular bone and distracted across the entire length of the defect, without the restriction from a mandible plate fixation. This allows for full-length distraction until enough regenerate is obtained to reconstruct the defect without the need for additional bone grafts. Taking advantage of the soft moldable regenerate, the second and final operative procedure allows for the manipulation, repositioning, and fixation of the transported segments in the ideal position creating perfect tridimensional form and symmetry of the mandible arch...
January 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28203501/partial-breast-reconstruction-with-goldilocks-technique-after-excision-of-giant-fibroadenoma-a-case-report
#8
Ryan P Ter Louw, Sara B Bruce, Maurice Y Nahabedian
Giant juvenile fibroadenomas are relatively rare, accounting for less than 1% fibroadenomas. Large breast tumors create significant asymmetry and provide unique reconstructive challenges after removal. In this case, we describe a 21-year-old female with delayed presentation of a giant fibroadenoma of the right breast. This represents an unusual presentation of benign breast disease requiring reduction of the skin envelope, extensive glandular resection, lower pole reconstruction, and free nipple grafting to achieve symmetry with the opposite breast...
January 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28203474/unexpected-radiation-induced-aortic-wall-thickening-requiring-composite-graft-technique-during-off-pump-coronary-artery-bypass-grafting
#9
Paola Redaelli, Amando Gamba, Antonello Stefano Martino, Michele Triggiani
Mediastinal radiation is commonly used to treat Hodgkin's and non-Hodgkin's lymphoma, lung and breast cancer. Cardiac complications after radiation therapy are well described, although rare. A large spectrum of injuries can occur, causing long term morbidity among survivors. We describe a case of post-actinic ascending aortic wall thickening that prevented saphenous vein proximal anastomosis and was successfully managed with aortic no-touch off-pump coronary artery bypass grafting (OPCAB), 25 years after radiation therapy for Hodgkin's lymphoma...
2017: Case Reports in Surgery
https://www.readbyqxmd.com/read/28203026/-histomorphometric-evaluation-of-ridge-preservation-after-molar-tooth-extraction
#10
Y L Zhan, W J Hu, T Xu, M Zhen, R F Lu
OBJECTIVE: To evaluate bone formation in human extraction sockets with absorbed surrounding walls augmented with Bio-Oss and Bio-Gide after a 6-month healing period by histologic and histomorphometric analyses. METHODS: Six fresh molar tooth extraction sockets in 6 patients who required periodontally compromised moral tooth extraction were included in this study. The six fresh extraction sockets were grafted with Bio-Oss particle covered with Bio-Gide. The 2.8 mm×6...
February 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28201864/recurrent-contrast-induced-encephalopathy-following-coronary-angiography
#11
Roberto Spina, Neil Simon, Romesh Markus, David W M Muller, Krishna Kathir
Contrast-induced encephalopathy (CIE) is an acute and reversible neurological disturbance associated with the intra-arterial administration of iodinated contrast medium during cardiac catheterisation. It may manifest with encephalopathy, motor and sensory disturbances; vision disturbances, including cortical blindness, ophthalmoplegia, aphasia; and seizures. Disruption of the blood-brain barrier and direct neuronal toxicity are believed to be implicated in the pathophysiology of the syndrome. Symptoms appear soon after contrast administration and resolve completely within 24-48 h...
February 2017: Internal Medicine Journal
https://www.readbyqxmd.com/read/28197989/growth-plate-extracellular-matrix-derived-scaffolds-for-large-bone-defect-healing
#12
G M Cunniffe, P J Díaz-Payno, J S Ramey, O R Mahon, A Dunne, E M Thompson, F J O'Brien, D J Kelly
Limitations associated with demineralised bone matrix and other grafting materials have motivated the development of alternative strategies to enhance the repair of large bone defects. The growth plate (GP) of developing limbs contain a plethora of growth factors and matrix cues which contribute to long bone growth, suggesting that biomaterials derived from its extracellular matrix (ECM) may be uniquely suited to promoting bone regeneration. The goal of this study was to generate porous scaffolds from decellularised GP ECM and to evaluate their ability to enhance host mediated bone regeneration following their implantation into critically-sized rat cranial defects...
February 14, 2017: European Cells & Materials
https://www.readbyqxmd.com/read/28197297/reconstruction-of-an-anterior-cervical-necrotizing-fasciitis-defect-using-a-biodegradable-polyurethane-dermal-substitute
#13
Marcus Jd Wagstaff, Yugesh Caplash, John E Greenwood
Introduction: Although we have previously described the use of a novel polyurethane biodegradable dermal substitute in the reconstruction of 20 free flap donor sites, and extensive cutaneous defects, including a large area of exposed calvarium secondary to burn injury, our experience with this material now extends to 35 free flap donor site reconstructions and 13 major or complex burns. Methods: The polyurethane material (NovoSorb BTM; PolyNovo Biomaterials Pty Ltd, Port Melbourne, Victoria, Australia) was recently employed in another complex wound scenario, implanted into a large anterior cervical cutaneous and soft-tissue defect remaining after serial radical debridement for necrotizing fasciitis...
2017: Eplasty
https://www.readbyqxmd.com/read/28195969/acute-mesenteric-ischemia-among-postcardiac-surgery-patients-presenting-with-multiple-organ-failure
#14
Alexis Guillaume, Sébastien Pili-Floury, Sidney Chocron, Eric Delabrousse, Bénédicte De Parseval, Stephane Koch, Emmanuel Samain, Gilles Capellier, Gaël Piton
BACKGROUND: Acute mesenteric ischemia (AMI) is a rare but severe complication after cardiac surgery. However, AMI is likely to be more frequent in the subgroup of patients presenting with multiple organ failure after a cardiac surgery. The primary objective of this study was to identify AMI risk factors among patients requiring intensive care unit (ICU) admission after cardiac surgery. METHODS: Retrospective observational study of all the patients requiring admission to two ICUs in a large university hospital after a cardiac surgery procedure...
March 2017: Shock
https://www.readbyqxmd.com/read/28195891/simple-skin-stretching-device-in-assisted-tension-free-wound-closure
#15
Li-Fu Cheng, Jiunn-Tat Lee, Honda Hsu, Meng-Si Wu
BACKGROUND: Numerous conventional wound reconstruction methods, such as wound undermining with direct suture, skin graft, and flap surgery, can be used to treat large wounds. The adequate undermining of the skin flaps of a wound is a commonly used technique for achieving the closure of large tension wounds; however, the use of tension to approximate and suture the skin flaps can cause ischemic marginal necrosis. The purpose of this study is to use elastic rubber bands to relieve the tension of direct wound closure for simultaneously minimizing the risks of wound dehiscence and wound edge ischemia that lead to necrosis...
February 14, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28195879/fibrin-associated-ebv-positive-large-b-cell-lymphoma-an-indolent-neoplasm-with-features-distinct-from-diffuse-large-b-cell-lymphoma-associated-with-chronic-inflammation
#16
Daniel F Boyer, Penelope A McKelvie, Laurence de Leval, Kerstin L Edlefsen, Young-Hyeh Ko, Zachary A Aberman, Alexandra E Kovach, Aneal Masih, Ha T Nishino, Lawrence M Weiss, Alan K Meeker, Valentina Nardi, Maryknoll Palisoc, Lina Shao, Stefania Pittaluga, Judith A Ferry, Nancy Lee Harris, Aliyah R Sohani
Incidental cases of localized fibrin-associated Epstein-Barr virus (EBV)+ large B-cell proliferations have been described at unusual anatomic sites and have been included in the category of diffuse large B-cell lymphoma associated with chronic inflammation (DLBCL-CI) in the WHO Classification. We describe 12 cases and review the literature to define their clinicopathologic spectrum and compare features with typical cases of DLBCL-CI. Median age was 55.5 years with a M:F ratio of 3. In all 12 cases, the lymphoma was an incidental microscopic finding involving atrial myxomas (n=3), thrombi associated with endovascular grafts (n=3), chronic hematomas (n=2), and pseudocysts (n=4)...
March 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28194628/association-between-ck-mb-area-under-the-curve-and-tranexamic-acid-utilization-in-patients-undergoing-coronary-artery-bypass-surgery
#17
Sean van Diepen, Peter D Merrill, Michel Carrier, Jean-Claude Tardif, Mihai Podgoreanu, John H Alexander, Renato D Lopes
Myonecrosis after coronary artery bypass graft (CABG) surgery is associated with excess mortality. Tranexamic acid (TA), an anti-fibrinolytic agent, has been shown to reduce peri-operative blood loss without increasing the risk of myocardial infarction (MI); however, no large study has examined the association between TA treatment and post-CABG myonecrosis. In the MC-1 to Eliminate Necrosis and Damage in Coronary Artery Bypass Graft Surgery II trial, inverse probability weighting of the propensity to receive TA was used to test for differences among the 656 patients receiving and 770 patients not receiving TA...
February 14, 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/28194536/the-role-of-vasculature-in-bone-development-regeneration-and-proper-systemic-functioning
#18
REVIEW
Joanna Filipowska, Krzysztof A Tomaszewski, Łukasz Niedźwiedzki, Jerzy A Walocha, Tadeusz Niedźwiedzki
Bone is a richly vascularized connective tissue. As the main source of oxygen, nutrients, hormones, neurotransmitters and growth factors delivered to the bone cells, vasculature is indispensable for appropriate bone development, regeneration and remodeling. Bone vasculature also orchestrates the process of hematopoiesis. Blood supply to the skeletal system is provided by the networks of arteries and arterioles, having distinct molecular characteristics and localizations within the bone structures. Blood vessels of the bone develop through the process of angiogenesis, taking place through different, bone-specific mechanisms...
February 13, 2017: Angiogenesis
https://www.readbyqxmd.com/read/28193263/automated-freeze-thaw-cycles-for-decellularization-of-tendon-tissue-a-pilot-study
#19
Susanne Pauline Roth, Sina Marie Glauche, Amelie Plenge, Ina Erbe, Sandra Heller, Janina Burk
BACKGROUND: Decellularization of tendon tissue plays a pivotal role in current tissue engineering approaches for in vitro research as well as for translation of graft-based tendon restoration into clinics. Automation of essential decellularization steps like freeze-thawing is crucial for the development of more standardized decellularization protocols and commercial graft production under good manufacturing practice (GMP) conditions in the future. METHODS: In this study, a liquid nitrogen-based controlled rate freezer was utilized for automation of repeated freeze-thawing for decellularization of equine superficial digital flexor tendons...
February 14, 2017: BMC Biotechnology
https://www.readbyqxmd.com/read/28192870/clinical-and-immunohistochemical-performance-of-lyophilized-platelet-rich-fibrin-ly-prf-on-tissue-regeneration
#20
Jianming Zhang, Xingying Qi, Xiaoding Luo, Dan Li, Haorong Wang, Ting Li
BACKGROUND: Platelet-rich fibrin (PRF) has been widely used in oral implantology and other fields, but benefits of the fresh PRF (FPRF (fresh platelet-rich fibrin)) were consequently limited because of its short-term application. Thus, a protocol for the combination of PRF and lyophilization comes up in the present study to address the issue of PRF storage and delayed clinical application, which has little been reported in this field at home and abroad by now. PURPOSE: The aim of the present study was to evaluate the applicability of lyophilized platelet-rich fibrin (Ly-PRF) used as the scaffold material for craniofacial tissue regeneration and to compare its biochemical properties with commonly used fresh PRF...
February 13, 2017: Clinical Implant Dentistry and related Research
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