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Reconstruction of abdominal wall

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https://www.readbyqxmd.com/read/28431980/shear-stress-alterations-in-the-celiac-trunk-of-patients-with-a-continuous-flow-left-ventricular-assist-device-as-shown-by-in-silico-and-in-vitro-flow-analyses
#1
Francesco Scardulla, Salvatore Pasta, Leonardo D'Acquisto, Sergio Sciacca, Valentina Agnese, Christian Vergara, Alfio Quarteroni, Francesco Clemenza, Diego Bellavia, Michele Pilato
BACKGROUND: The use of left ventricular assist devices (LVADs) to treat advanced cardiac heart failure is constantly increasing, although this device leads to high risk for gastrointestinal bleeding. METHODS: Using in-silico flow analysis, we quantified hemodynamic alterations due to continuous-flow LVAD (HeartWare, Inc., Framingham, MA) in the celiac trunk and major branches of the abdominal aorta, and then explored the relationship between wall shear stress (WSS) and celiac trunk orientation...
March 24, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28413398/desmoid-fibromatosis-of-the-abdominal-wall-surgical-resection-and-reconstruction-with-biological-matrix-egis-%C3%A2
#2
Saveria Tropea, Simone Mocellin, Roberto Stramare, Maria Giuseppina Bonavina, Carlo Riccardo Rossi, Marco Rastrelli
Desmoid tumor is a rare monoclonal fibroblast proliferation that is regarded as benign. The clinical management of desmoid tumors is very complex and requires a multidisciplinary approach because of the unpredictable disease course. For those cases localized in the anterior abdominal wall, symptomatic and unresponsive to medical treatment, radical resection and reconstruction with a prosthetic device are indicated. We present here a case of desmoid fibromatosis of the left anterolateral abdominal wall with a marked increase of the mass that required a large excision followed by reconstruction with biological matrix...
January 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28408920/endoscopic-assisted-linea-alba-reconstruction-new-technique-for-treatment-of-symptomatic-umbilical-trocar-and-or-epigastric-hernias-with-concomitant-rectus-abdominis-diastasis
#3
Ferdinand Köckerling, Marinos Damianos Botsinis, Christine Rohde, Wolfgang Reinpold, Christine Schug-Pass
BACKGROUND: Patients with symptomatic umbilical, trocar, and/or epigastric hernias and concomitant rectus abdominis diastasis represent a growing clinical problem. The optimal management of this complex hernia situation is the subject of debate in the literature. This paper reports the early results of an innovative surgical technique aimed at managing this hernia situation. METHODS: Endoscopic-assisted linea alba reconstruction (ELAR) with mesh augmentation is a surgical technique long known in the literature for its good outcome for incisional hernia repair (myofascial release, overlapping herniorrhaphy, Gibson's operation, shoelace repair, anterior rectus sheath repair, dynamic patch plasty) via a small access route...
2017: European Surgery: ACA: Acta Chirurgica Austriaca
https://www.readbyqxmd.com/read/28367643/computational-fluid-dynamics-in-abdominal-aorta-bifurcation-non-newtonian-versus-newtonian-blood-flow-in-a-real-case-study
#4
Armando A Soares, Sílvia Gonzaga, Carlos Oliveira, André Simões, Abel I Rouboa
Hemodynamic in abdominal aorta bifurcation was investigated in a real case using computational fluid dynamics. A Newtonian and non-Newtonian (Walburn-Schneck) viscosity models were compared. The geometrical model was obtained by 3D reconstruction from CT-scan and hemodynamic parameters obtained by laser-Doppler. Blood was assumed incompressible fluid, laminar flow in transient regime and rigid vessel wall. Finite volume-based was used to study the velocity, pressure, wall shear stress (WSS) and viscosity throughout cardiac cycle...
April 3, 2017: Computer Methods in Biomechanics and Biomedical Engineering
https://www.readbyqxmd.com/read/28363786/non-invasive-monitoring-of-in-vivo-degradation-of-a-radiopaque-thermoreversible-hydrogel-and-its-efficacy-in-preventing-post-operative-adhesions
#5
Kewen Lei, Yipei Chen, Jinyao Wang, Xiaochun Peng, Lin Yu, Jiandong Ding
In vivo behavior of hydrogel-based biomaterials is very important for rational design of hydrogels for various biomedical applications. Herein, we developed a facile method for in situ fabrication of radiopaque hydrogel. An iodinated functional diblock copolymer of poly(ethylene glycol) and aliphatic polyester was first synthesized by coupling the hydroxyl end of the diblock copolymer with 2, 3, 5-triiodobenzoic acid (TIB) and then a radiopaque thermoreversible hydrogel was obtained by mixing it with the virgin diblock copolymer...
March 28, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28356202/role-of-tissue-expansion-in-abdominal-wall-reconstruction-a-systematic-evidence-based-review
#6
Kimberly E Wooten, Cemile Nurdan Ozturk, Can Ozturk, Peter Laub, Nell Aronoff, Raffi Gurunluoglu
BACKGROUND: Tissue expanders (TEs) can be used to assist primary closure of complicated hernias and large abdominal wall defects. However, there is no consensus regarding the optimal technique, use, or associated risk of TE in abdominal wall reconstruction. METHODS: A systematic search of PubMed and Embase databases was conducted to identify articles reporting abdominal wall reconstruction with TE techniques. English articles published between 1980 and 2016 were included on the basis of the following inclusion criteria: two-stage TE surgical technique, >3 cases, reporting of postoperative complications, hernia recurrence, and patient-based clinical data...
February 28, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28351227/early-dynamic-positron-emission-tomography-pet-computed-tomography-and-pet-angiography-for-endoleak-detection-after-abdominal-endovascular-aneurysm-repair
#7
Robert Drescher, Falk Gühne, Martin Freesmeyer
PURPOSE: To propose a positron emission tomography (PET)/computed tomography (CT) protocol including early-dynamic and late-phase acquisitions to evaluate graft patency and aneurysm diameter, detect endoleaks, and rule out graft or vessel wall inflammation after endovascular aneurysm repair (EVAR) in one examination without intravenous contrast medium. TECHNIQUE: Early-dynamic PET/CT of the endovascular prosthesis is performed for 180 seconds immediately after intravenous injection of F-18-fluorodeoxyglucose...
March 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28327475/free-breathing-black-blood-cine-fast-spin-echo-imaging-for-measuring-abdominal-aortic-wall-distensibility-a-feasibility-study
#8
Jyh-Miin Lin, Andrew J Patterson, Tzu-Cheng Chao, Chengcheng Zhu, Hing-Chiu Chang, Jason Mendes, Hsiao-Wen Chung, Jonathan H Gillard, Martin J Graves
The paper reports a free-breathing black-blood CINE fast-spin echo (FSE) technique for measuring abdominal aortic wall motion. The free-breathing CINE FSE includes the following MR techniques: (1) variable-density sampling with fast iterative reconstruction; (2) inner-volume imaging; and (3) a blood-suppression preparation pulse. The proposed technique was evaluated in eight healthy subjects. The inner-volume imaging significantly reduced the intraluminal artifacts of respiratory motion (p  =  0.015)...
March 22, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28327422/abdominal-wall-reconstruction-after-desmoid-type-fibromatosis-radical-resection-case-series-from-a-single-institution-and-review-of-the-literature
#9
S D Couto Netto, F Teixeira, C A M Menegozzo, A Albertini, E H Akaishi, E M Utiyama
BACKGROUND: Abdominal wall desmoid type fibromatosis management has been changing over recent years, from an aggressive approach towards a more conservative one. When radical resection is indicated, the surgical team faces the challenge of abdominal wall reconstruction, for which optimal technique is still debated. The present study reports the experience from a single center with abdominal closures after desmoid type fibromatosis resection. MATERIAL AND METHODS: Retrospective analysis of patients who underwent abdominal wall closure after sporadic abdominal desmoid type fibromatosis radical resection from 1982 to 2013...
March 1, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28322104/feasibility-of-laparoscopic-abdominal-wall-reconstruction-in-an-outpatient-community-hospital-setting-using-cptfe-prosthetic-mesh-a-prospective-multicenter-case-series
#10
Terry Unruh, Joseph Adjei Boachie, Eduardo Smith-Singares
Objective This study investigated the use of prosthetic condensed polytetrafluoroethylene (cPTFE) for laparoscopic ventral hernia repair (LVHR) in an outpatient community-hospital setting. Methods Patients underwent LVHR with cPTFE at one of three community hospitals. Primary endpoint was hernia recurrence at 1-year postoperatively. Secondary endpoints included pain, surgical site infection, medical/surgical complications, and patient-reported outcomes. Results This study included 65 females and 52 males, aged 46...
December 2016: Journal of International Medical Research
https://www.readbyqxmd.com/read/28322040/design-and-fabrication-of-a-thin-walled-free-form-scaffold-on-the-basis-of-medical-image-data-and-a-3d-printed-template-its-potential-use-in-bile-duct-regeneration
#11
Suk-Hee Park, Bo-Kyeong Kang, Ji Eun Lee, Seung Woo Chun, Kiseok Jang, Youn Hwan Kim, Mi Ae Jeong, Yohan Kim, Kyojin Kang, Nak Kyu Lee, Dongho Choi, Han Joon Kim
Three-dimensional (3D) printing, combined with medical imaging technologies, such as computed tomography and magnetic resonance imaging (MRI), has shown a great potential in patient-specific tissue regeneration. Here, we successfully fabricated an ultrathin tubular free-form structure with a wall thickness of several tens of micrometers that is capable of providing sufficient mechanical flexibility. Such a thin geometry cannot easily be achieved by 3D printing alone; therefore, it was realized through a serial combination of processes, including the 3D printing of a sacrificial template, the dip coating of the biomaterial, and the removal of the inner template...
March 30, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28316225/-the-clinical-impact-of-artery-first-approach-combined-with-vascular-resection-and-reconstruction-in-the-treatment-of-pancreatic-head-carcinoma
#12
J L Huang, W G Li, F Z Chen, Z J Su, F M Li, B Liu
Objective: To evaluate the application of artery first, combined vascular resection and reconstruction in the treatment of pancreatic head carcinoma. Methods: The clinical data of 13 patients with pancreatic head cancer were retrospectively analyzed from February 2014 to March 2016 in the Affiliated Hospital of Xiamen University. Preoperative computed tomography of high resolution layer or magnetic resonance imaging examination demonstrated pancreatic head carcinoma, as well as close adhesion, stenosis, compression or displacement of superior mesenteric vein or portal vein wall...
March 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28306194/electrospun-biodegradable-microfibers-induce-new-collagen-formation-in-a-rat-abdominal-wall-defect-model-a-possible-treatment-for-pelvic-floor-repair
#13
Cecilie Glindtvad, Menglin Chen, Jens Vinge Nygaard, Lise Wogensen, Axel Forman, Carl Christian Danielsen, Mehmet Berat Taskin, Karl-Erik Andersson, Susanne Maigaard Axelsen
Half of the female population over age 50 years will experience pelvic organ prolapse. We suggest a new approach based on tissue engineering principles to functionally reconstruct the anatomical structures of the pelvic floor. The aim of this study is to investigate the mechanical performance and effect on collagen and elastin production of a degradable mesh releasing basic fibroblast growth factor (bFGF). Implantation of biodegradable mesh with or without bFGF in their core has been conducted in 40 rats in an abdominal wall defect model...
March 17, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28296717/abdominal-wall-allograft-preclinical-biomechanical-investigation-of-a-novel-reconstructive-adjunct
#14
Brent R DeGeorge, Jonathan Bryce Olenczak, Angela Pineros-Fernandez, Raymond F Morgan, Patrick S Cottler, David B Drake
INTRODUCTION: Acellular dermal matrices have revolutionized abdominal wall reconstruction; however, device failure and hernia recurrence remain significant problems. Fascia grafts are a reconstructive adjunct with increased tensile strength compared with acellular dermal matrices; however, clinical use is limited by insufficient donor material and donor site morbidity. To this end, we investigate the biomechanical properties of human abdominal wall allografts (AWAs) consisting of the anterior rectus sheath from xiphoid to pubis...
March 14, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28286041/combined-submuscular-tissue-expansion-and-anterior-component-separation-technique-for-abdominal-wall-reconstruction-long-term-outcome-analysis
#15
Brendan Alleyne, Cemile Nurdan Ozturk, Antonio Rampazzo, Jeffrey Johnson, Raffi Gurunluoglu
BACKGROUND: We report the long-term outcome analysis of 12 patients who underwent two-stage abdominal wall reconstruction using combined submuscular tissue expansion and anterior components separation (CS) technique. METHODS: Outcome measures were (1) the patients were assessed for the presence or absence of recurrence; (2) patient-reported outcomes on physical functioning in relation with the abdominal wall reconstruction were evaluated using the SF 36-item health survey...
February 17, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28282003/complex-ventral-hernia-repair-with-acellular-dermal-matrices-clinical-and-quality-of-life-outcomes
#16
John Scott Roth, Amanda Zachem, Margaret A Plymale, Daniel L Davenport
Acellular dermal matrices (ADMs) are used in conjunction with complex hernia repair, but their efficacy is often debated. This study assesses clinical and quality of life (QOL) outcomes in multiply comorbid patients undergoing complex ventral hernia repair using ADMs. After obtaining institutional review board approval, a prospective study was conducted evaluating patients undergoing complex ventral incisional hernia repair with abdominal wall reconstruction (AWR) using either human (Flex HD) or porcine ADM (Strattice)...
February 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28277071/chemical-component-separation-a-systematic-review-and-meta-analysis-of-botulinum-toxin-for-management-of-ventral-hernia
#17
Jason M Weissler, Michael A Lanni, Michael G Tecce, Martin J Carney, Valeriy Shubinets, John P Fischer
BACKGROUND: Ventral hernia represents a surgical challenge plagued by high morbidity and recurrence rates. Primary closure of challenging hernias is often prohibited by severe lateral retraction and tension of the abdominal wall musculature. Botulinum toxin injections have recently been identified as a potential pre-operative means to counteract abdominal wall tension, reduce hernia size, and facilitate fascial closure during hernia repair. This systematic review and meta-analysis reviews outcomes associated with botulinum toxin injections in the setting of ventral hernia, and demonstrates an opportunity to leverage this mainstream aesthetic product for use in abdominal wall reconstruction...
February 20, 2017: Journal of Plastic Surgery and Hand Surgery
https://www.readbyqxmd.com/read/28272279/preoperative-computed-tomography-angiogram-cta-measurement-of-abdominal-muscles-is-a-valuable-risk-assessment-for-bulge-formation-after-microsurgical-abdominal-breast-reconstruction
#18
Elisabeth A Kappos, Jeff Jaskolka, Kate Butler, Anne C O'Neill, Stefan Op Hofer, Toni Zhong
BACKGROUND: A major shortcoming associated with abdominal tissue breast reconstruction is the long-term abdominal wall morbidity. Although abdominal core muscle size on computed tomography angiogram (CTA) has been correlated with morbidity following many abdominal surgeries, it has not been studied for abdominal breast reconstruction. Therefore, we evaluated the association between preoperative CTA-derived measurements of abdominal core muscles and postoperative abdominal wall morbidity after abdominal tissue breast reconstruction...
March 6, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28265733/major-complex-abdominal-wall-repair-in-contaminated-fields-with-use-of-a-non-cross-linked-biologic-mesh-a-dual-institutional-experience
#19
J J Atema, E J Furnée, Y Maeda, J Warusavitarne, P J Tanis, W A Bemelman, C J Vaizey, M A Boermeester
BACKGROUND: Data on the use of biologic mesh in abdominal wall repair in complex cases remain sparse. Aim of this study was to evaluate a non-cross-linked porcine acellular dermal matrix for repair of complex contaminated abdominal wall defects. METHODS: Retrospective observational cohort study of consecutive patients undergoing abdominal wall repair with use of Strattice™ Reconstructive Tissue Matrix (LifeCell Corporation, Oxford, UK) between January 2011 and February 2015 at two National Intestinal Failure Units...
March 6, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28260602/recovery-after-abdominal-wall-reconstruction
#20
REVIEW
Kristian Kiim Jensen
Incisional hernia is a common long-term complication to abdominal surgery, occurring in more than 20% of all patients. Some of these hernias become giant and affect patients in several ways. This patient group often experiences pain, decreased perceived body image, and loss of physical function, which results in a need for surgical repair of the giant hernia, known as abdominal wall reconstruction. In the current thesis, patients with a giant hernia were examined to achieve a better understanding of their physical and psychological function before and after abdominal wall reconstruction...
March 2017: Danish Medical Journal
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