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https://www.readbyqxmd.com/read/28916983/surface-changes-of-nanotopography-by-carbon-ion-implantation-to-enhance-the-biocompatibility-of-silicone-rubber-an-in-vitro-study-of-the-optimum-ion-fluence-and-adsorbed-protein
#1
Xianhui Li, Xin Zhou, Yao Chen, Shu Yu, Xin Chen, Xin Xia, Xiaohua Shi, Yiming Zhang, Dongli Fan
Lower cellular adhesion and dense fibrous capsule formation around silicone breast implants caused by lower biocompatibility is a serious clinical problem. Preliminary work has shown that ion implantation enhances cell adhesion. Whether the biocompatibility is further enhanced by higher doses of carbon ion implantation and the mechanism by which ion implantation enhances biocompatibility remain unclear. In this study, five doses of carbon ions, which gradually increase, were implanted on the surface of silicone rubber and then the surface characteristics were surveyed...
September 15, 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28894664/aesthetic-female-to-male-chest-transformation-power-of-combining-modified-mastectomy-with-a-pectoral-implant
#2
Turkia Abbed, David A Shifrin
Gender reassignment surgery has gained in popularity with increased media exposure and society's recognition of gender dysphoria. Female-to-male gender reassignment often begins with the "top" or chest surgery. Mastectomy with free nipple grafting is the most frequently described technique in the literature. This technique is reliable yet lacks the ability to provide a true male chest shape. We discuss our technique for female-to-male "top" surgery combining traditional mastectomy techniques with a lower pole pedicle vascularized areola and a pectoral implant...
August 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28890745/a-simple-and-practical-method-for-setting-up-a-criterion-of-projection-of-silicone-breast-implant-after-simple-mastectomy
#3
Naohiro Ishii, Jiro Ando, Michiko Harao, Masaru Takemae, Kazuo Kishi
Objective: In breast reconstruction, decision of projection of silicone breast implant in tissue expander replacement is difficult because of the need to consider several parameters that cannot be expressed in accurate numerical form. The present study aimed at a quantitative analysis based on decreased projection of the reconstructed side compared with silicone breast implant projection and to develop a new method for simple and practical decision of silicone breast implant projection. Methods: Thirty-five patients who had mammary carcinoma and were treated with simple mastectomy, tissue expander insertion, and replacement with anatomical silicone breast implant from April 2013 to March 2016 were retrospectively identified...
2017: Eplasty
https://www.readbyqxmd.com/read/28885130/a-comparison-of-relative-proton-stopping-power-measurements-across-patient-size-using-dual-and-single-energy-ct
#4
Gregory Michalak, Vicki Taasti, Bernhard Krauss, Amanda Deisher, Ahmed Halaweish, Cynthia McCollough
PURPOSE: To evaluate the accuracy and precision across phantom size of a dual-energy computed tomography (DECT) technique used to calculate relative proton stopping power (SPR) in tissue-simulating materials and a silicone implant relative to conventional single-energy CT (SECT). MATERIAL AND METHODS: A 32 cm lateral diameter (CIRS model 062M, Norfolk, Virginia) electron density phantom containing inserts which simulated the chemical composition of eight tissues in a solid-water background was scanned using SECT and DECT...
September 8, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28862115/new-language-and-old-problems-in-breast-cancer-radiotherapy
#5
Ion Christian Chiricuţă
New developments in breast cancer radiotherapy make possible new standards in treatment recommandations based on international guidelines. Developments in radiotherapy irradiation techniques from 2D to 3D-Conformal RT and to IMRT (Intensity Modulated Arc Therapy) make possible to reduce the usual side effects on the organs at risk as: skin, lung, miocard, bone, esophagus and brahial plexus. Dispite of all these progresses acute and late side effects are present. Side effects are as old as the radiotherapy was used...
July 2017: Chirurgia
https://www.readbyqxmd.com/read/28842766/desmoid-tumor-and-silicone-breast-implant-surgery-is-there-really-a-connection-a-literature-review
#6
REVIEW
R Tzur, E Silberstein, Y Krieger, Y Shoham, Y Rafaeli, A Bogdanov-Berezovsky
BACKGROUND: Desmoid tumors are borderline tumors of the connective tissue, arising in the musculo-aponeurotic stromal elements. A desmoid tumor (DT) has an infiltrative and locally aggressive growth pattern and usually does not metastasize; however, it has a high recurrence and complication rate. DT located in the breast (BDT) represents a rare extra-abdominal form. Recently, the presence of breast silicone implants was suggested by several researchers as a risk factor for developing BDT...
August 25, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28837752/enhancing-surface-properties-of-breast-implants-by-using-electrospun-silk-fibroin
#7
A A Valencia-Lazcano, R Román-Doval, E De La Cruz-Burelo, E J Millán-Casarrubias, A Rodríguez-Ortega
In the present study, a new electrospun silk fibroin coating of silicone breast implants with improved biocompatibility and mechanical properties was obtained. Fibrous scaffolds were produced by electrospinning a solution containing silk fibroin, derived from Bombyx mori cocoons, and polyethylene oxide (PEO) to be used as a coating of breast implants. A randomly oriented structure of fibroin/PEO was electrospun on implants as assessed by SEM analysis, roughness measurements and ATR-FTIR spectroscopy. The scaffold showed 0...
August 24, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28831356/hypercalcemia-secondary-to-silicone-breast-implant-rupture-a-rare-entity-to-keep-in-mind
#8
Ivan E Rodriguez, Frederic W-B Deleyiannis
No abstract text is available yet for this article.
July 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28831345/characterization-of-the-capsule-surrounding-smooth-and-textured-tissue-expanders-and-correlation-with-contracture
#9
Erika Kuriyama, Hiroko Ochiai, Yoshikazu Inoue, Yoshiaki Sakamoto, Naoki Yamamoto, Toshiaki Utsumi, Kazuo Kishi, Takayuki Okumoto, Akihiro Matsuura
Capsular contracture is a common complication after breast augmentation surgery. This study pathologically evaluated the soft-tissue response to surface modifications in both smooth and textured tissue expander prostheses. METHODS: Smooth tissue expanders and textured tissue expanders in 5 cases each were used for breast reconstruction after mastectomy. Histological samples were harvested from the capsules when the tissue expanders were replaced by silicone implants. Collagen orientation and cellular responses were assessed histologically...
July 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28831335/subcutaneously-placed-breast-implants-after-a-skin-sparing-mastectomy-do-we-always-need-adm
#10
Apresh Singla, Animesh Singla, Eric Lai, David Caminer
Immediate breast reconstruction is an acceptable treatment option after mastectomy for prophylaxis of early breast cancer. Different options exist for implant placement, incision technique, patient suitability, and institutional experience. This article is a case series exploring the feasibility and outcomes of patients undergoing immediate breast reconstruction using skin-sparing mastectomy without mesh or acellular dermal matrix (ADM) and with a vertical inframammary incision. METHODS: A single-institution retrospective analysis was performed for all patients who underwent immediate single-stage reconstruction with subcutaneous silicon implants without ADM between 2009 and 2014 inclusive...
July 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28828097/radiologic-images-of-an-aggressive-implant-associated-fibromatosis-of-the-breast-and-chest-wall-case-report-and-review-of-the-literature
#11
Lourdes Alanis, Robyn Roth, Nati Lerman, Julieta E Barroeta, Pauline Germaine
Fibromatosis of the breast is a rare benign disease compromising <0.2% of all primary breast tumors. Although the chest wall is a common location, occurrences of implant-associated fibromatosis of the breast are extremely rare; only 33 cases have been reported. We present a case of a 42-year-old female who underwent breast augmentation with silicone breast implants, and 2 years later developed an aggressive implant-associated fibromatosis of the breast and chest wall. On imaging studies, the tumor mimicked breast carcinoma, and despite chemotherapy, the fibromatosis rapidly enlarged and was locally invasive requiring wide surgical excision...
September 2017: Radiology case reports
https://www.readbyqxmd.com/read/28773799/chemical-and-structural-characterization-of-several-mid-term-explanted-breast-prostheses
#12
Angela Amoresano, Luca De Stefano, Ilaria Rea, Federica Pane, Leila Birolo, Fabrizio Schonauer
The recent scandal of poly implant prostheses (PIP), which were found in some cases to be made of non-medical grade silicone (as reported by the European Scientific Committee on Emerging and Newly Identified Health Risks), had a great social impact. Thousands of patients asked for implant removal with significant costs for public health care systems. We analysed, by a multidisciplinary approach, sixteen different breast implants after explantation by using several analytical and structural techniques, such as Fourier Transform infrared spectroscopy (FT-IR), mass spectrometry equipped by ion coupled plasma (ICP-MS), gas-chromatography (GC-MS), and tensile testing...
August 9, 2016: Materials
https://www.readbyqxmd.com/read/28740781/direct-to-implant-reconstruction-in-nipple-sparing-mastectomy-patient-selection-by-preoperative-digital-mammogram
#13
Alberto O Rancati, Claudio H Angrigiani, Dennis C Hammond, Maurizio B Nava, Eduardo G Gonzalez, Julio C Dorr, Gustavo F Gercovich, Nicola Rocco, Roman L Rostagno
BACKGROUND: Digital mammography clearly distinguishes gland tissue density from the overlying nonglandular breast tissue coverage, which corresponds to the existing tissue between the skin and the superficial layer of the fascia superficialis surrounding the gland (i.e., dermis and subcutaneous fat). Preoperative digital imaging can determine the thickness of this breast tissue coverage, thus facilitating planning and reducing the rate of necrotic complications after direct to implant (DTI) reconstruction in nipple sparing mastectomy (NSM)...
June 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28739610/silicone-implant-incompatibility-syndrome-siis-in-a-57-year-old-woman-with-unilateral-silicone-breast-implant
#14
Juliane Schierbeck, Jesper Rømhild Davidsen, Sanne Grindsted Nielsen, Camilla Bille
Since the 1960s, silicone implants have been used for breast augmentations, both cosmetically and in reconstructive surgery. Tissue exposed to silicone can react with multiple adverse advents. Autoimmune/inflammatory syndrome induced by adjuvants due to silicone exposure from ruptured silicone implants can lead to different interstitial lung manifestations predominantly with granuloma evolvement, leading to the so-called silicone implant incompatibility syndrome (SIIS). This case describes a 57-year-old woman with multiple lung infiltrations and a left-sided breast implant...
July 24, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28739171/efficacy-of-ultrasound-mammography-and-magnetic-resonance-imaging-in-detecting-breast-implant-rupture-a-retrospective-study-of-175-reconstructive-and-aesthetic-sub-pectoral-breast-augmentation-cases
#15
Alessio Stivala, Kessara Rem, Sara Leuzzi, Vivien Moris, Caroline François, Marc Revol, Sarra Cristofari
To date, the effectiveness of radiological imaging in detecting silicone breast implant rupture is uncertain. The purpose of this study is to retrospectively evaluate the effectiveness of radiological imaging when diagnosing a rupture. In this study, 175 patients with 242 breast implants were included, of which 168 and 74 implants were used for breast reconstruction and aesthetic augmentation, respectively. All patients who underwent revision surgery, between January 2015 and June 2016, following breast augmentation or reconstruction were included, regardless of any pre-operative diagnosis of rupture that had been made...
June 3, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28710678/breast-magnetic-resonance-imaging-tips-for-the-diagnosis-of-silicone-induced-granuloma-of-a-breast-implant-capsule-sigbic
#16
REVIEW
Eduardo de Faria Castro Fleury, Ana Claudia Gianini, Veronica Ayres, Luciana C Ramalho, Rodrigo Oliveira Seleti, Decio Roveda
Complications resulting from the placement of silicone breast implants are becoming more frequent in our clinical practice. This is due to the increase in breast aesthetic surgeries at the beginning of the century, where breast augmentation using silicone implants was the main intervention performed. Generally, studies that discuss the complications of breast implants are restricted to reports of intra- or extra-capsular ruptures, contractures and haematomas. Currently, much importance has been given to anaplastic large cell lymphoma (ALCL) as a more severe complication related to silicone implants...
August 2017: Insights Into Imaging
https://www.readbyqxmd.com/read/28697402/functional-biocompatibility-testing-of-silicone-breast-implants-and-a-novel-classification-system-based-on-surface-roughness
#17
S Barr, E W Hill, A Bayat
PURPOSE: Increasing numbers of women undergo breast implantation for cosmetic and reconstructive purposes. Contracture of the fibrous capsule, which encases the implant leads to significant pain and reoperation. Texture, wettability and the cellular reaction to implant surfaces are poorly understood determinants of implant biocompatibility. The aim of this study was to evaluate the in-vitro characteristics of a range of commercial available implants using a macrophage based assay of implant biocompatibility and a quantitative assessment of wettability and texture...
June 27, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28681666/the-effects-of-colchicine-impregnated-oxidized-regenerated-cellulose-on-capsular-contracture
#18
Burcin Acuner, Nesrin Tan Baser, Gurcan Aslan, Ahmet Terzioglu, Muzaffer Caydere, Huseyın Ustun, Metin Görgü
Capsular contracture is the most common complication of breast augmentation. Oxidized regenerated cellulose can be used as a matrix for drug transport. Colchicine is an antimitotic drug that interferes with various steps of wound healing. The aim of this study was to evaluate the effects of oxidized regenerated cellulose alone or in combination with colchicine on capsular contracture. Twenty-one adult female Wistar-Albino rats were divided into 3 groups. In group 1 silicone blocks only, in group 2 oxidized regenerated cellulose-wrapped silicone blocks, and in group 3 colchicine-impregnated oxidized regenerated cellulose-wrapped silicone blocks were inserted in the dorsal region...
June 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28670313/macrophage-polarization-contributes-to-the-anti-tumoral-efficacy-of-mesoporous-nanovectors-loaded-with-albumin-bound-paclitaxel
#19
Fransisca Leonard, Louis T Curtis, Matthew James Ware, Taraz Nosrat, Xuewu Liu, Kenji Yokoi, Hermann B Frieboes, Biana Godin
Therapies targeted to the immune system, such as immunotherapy, are currently shaping a new, rapidly developing branch of promising cancer treatments, offering the potential to change the prognosis of previously non-responding patients. Macrophages comprise the most abundant population of immune cells in the tumor microenvironment (TME) and can undergo differentiation into functional phenotypes depending on the local tissue environment. Based on these functional phenotypes, tumor-associated macrophages (TAMs) can either aid tumor progression (M2 phenotype) or inhibit it (M1 phenotype)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28663846/flexible-silicon-sensors-for-diffuse-reflectance-spectroscopy-of-tissue
#20
David M Miller, Nan M Jokerst
Diffuse reflectance spectroscopy (DRS) is being used in exploratory clinical applications such as cancer margin assessment on excised tissue. However, when interrogating nonplanar tissue anomalies can arise from non-uniform pressure. Herein is reported the design, fabrication, and test of flexible, thin film silicon photodetectors (PDs) bonded to a flexible substrate designed for use in conformal DRS. The PDs have dark currents and responsivities comparable to conventional Si PDs, and were characterized while flat and while flexed at multiple radii of curvature using liquid phantoms mimicking adipose and malignant breast tissue...
March 1, 2017: Biomedical Optics Express
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