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https://www.readbyqxmd.com/read/28812172/delayed-post-mastectomy-breast-reconstructions-with-allogeneic-acellular-dermal-matrix-prepared-by-a-new-decellularizationmethod
#1
Martin Bohac, Ivan Varga, Stefan Polak, Jana Dragunova, Jozef Fedeles, Jan Koller
Acellular dermal matrix (ADM) is a tissue graft of allogeneic origin from post-mortem tissue donors prepared by an innovative decellularization process. The newly developed non-toxic and low cost decellularization process of cadaver origin dermis included ADM in breast reconstruction procedures proved to help coverage of the lower-pole of breast expanders or implants. As the results have shown, it did help to eliminate autologous dermis donor site morbidity along with shortening the operation time by avoiding elevation of additional muscle or fascia during the operation...
August 16, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28807337/evaluation-of-cd43-expression-in-non-hematopoietic-malignancies
#2
Bjorn H Batdorf, Steven H Kroft, Paul R Hosking, Alexandra M Harrington, Alexander C Mackinnon, Horatiu Olteanu
OBJECTIVES: CD43 is normally expressed only on the surface of leukocytes, and is considered a sensitive and specific marker for hematologic malignancies. As such, it may have diagnostic utility in confirming hematolymphoid lineage in cases that are negative for CD45. Aberrant CD43 expression has been described in non-hematopoietic tumors, although literature data on this topic is variable and sometimes contradictory. To clarify and expand on existing literature findings, we evaluated CD43 expression by immunohistochemistry (IHC) in a large cohort (307) of non-hematopoietic neoplasms, including poorly differentiated malignancies...
August 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28806288/acellular-dermal-matrix-in-immediate-expander-implant-breast-reconstruction-a-multicenter-assessment-of-risks-and-benefits
#3
Michael Sorkin, Ji Qi, Hyungjin M Kim, Jennifer B Hamill, Jeffrey H Kozlow, Andrea L Pusic, Edwin G Wilkins
INTRODUCTION: Acellular dermal matrix (ADM) has gained widespread acceptance in immediate expander/implant reconstruction due to perceived benefits, including improved expansion dynamics and superior aesthetic results. Although previous investigators have evaluated its risks, few studies have assessed the impact of ADM on other outcomes, including patient-reported measures. METHODS: The Mastectomy Reconstruction Outcomes Consortium (MROC) Study used a prospective cohort design to evaluate patients undergoing post-mastectomy reconstruction from 10 centers and 58 participating surgeons between 2012 and 2015...
August 3, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28779906/-reverse-expansion-a-new-technique-of-breast-reconstruction-with-autologous-tissue
#4
L Fabiocchi, G Semprini, F Cattin, L Dellachiesa, T Fogacci, G Frisoni, D Samorani
The treatment for breast cancer is sometimes long and requires a multidisciplinary approach. In 2010, in our centre, we began to perform fat grafting for breast reconstruction using the so-called 'reverse expansion' technique. This consists of the insertion of a skin expander during mastectomy, in its expansion and then in its gradual deflation in the surgical theatre during fat grafting. We performed a complete breast reconstruction in 57 patients by reverse expansion. We harvested fat from the fat excess areas using a normal liposuction cannula...
July 18, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28766219/a-10-year-experience-with-mastectomy-and-tissue-expander-placement-to-facilitate-subsequent-radiation-and-reconstruction
#5
Zeina Ayoub, Eric A Strom, Valentina Ovalle, George H Perkins, Wendy A Woodward, Welela Tereffe, Benjamin D Smith, Simona F Shaitelman, Michael C Stauder, Karen E Hoffman, Sarah M DeSnyder, Patrick B Garvey, Mark W Clemens, Carlos H Barcenas, Henry M Kuerer, Steven Kronowitz
BACKGROUND: An integrated approach to skin sparing mastectomy with tissue expander placement followed by radiotherapy and delayed reconstruction was initiated in our institution in 2002. The purpose of this study was to assess the surgical outcomes of this strategy. METHODS: Between September 2002 and August 2013, a total of 384 reconstructions had a tissue expander placed at the time of mastectomy and subsequently underwent radiotherapy. Rates and causes of tissue expander explantation before, during, and after radiotherapy, as well as tumor specific outcomes and reconstruction approaches, were collected...
August 1, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28765784/tissue-expansion-for-breast-reconstruction-methods-and-techniques
#6
REVIEW
Nicolò Bertozzi, Marianna Pesce, PierLuigi Santi, Edoardo Raposio
OBJECTIVE: In this work, the authors review recent data on the different methods and techniques of TE/implant-based reconstruction to determine the complication profiles and the advantages and disadvantages of the different techniques. This information will be valuable for surgeons performing breast reconstructions. MATERIALS AND METHODS: A thorough literature review was conducted by the authors concerning the current strategy of tissue expander (TE)/implant-based breast reconstruction following breast cancer surgery...
September 2017: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/28743464/stem-cell-therapy-for-abrogating-stroke-induced-neuroinflammation-and-relevant-secondary-cell-death-mechanisms
#7
REVIEW
Connor Stonesifer, Sydney Corey, Shaila Ghanekar, Zachary Diamandis, Sandra A Acosta, Cesar V Borlongan
Ischemic stroke is a leading cause of death worldwide. A key secondary cell death mechanism mediating neurological damage following the initial episode of ischemic stroke is the upregulation of endogenous neuroinflammatory processes to levels that destroy hypoxic tissue local to the area of insult, induce apoptosis, and initiate a feedback loop of inflammatory cascades that can expand the region of damage. Stem cell therapy has emerged as an experimental treatment for stroke, and accumulating evidence supports the therapeutic efficacy of stem cells to abrogate stroke-induced inflammation...
July 22, 2017: Progress in Neurobiology
https://www.readbyqxmd.com/read/28740794/tissue-expanders-and-proton-beam-radiotherapy-what-you-need-to-know
#8
Ashley L Howarth, Joshua R Niska, Kenneth Brooks, Aman Anand, Martin Bues, Carlos E Vargas, Raman C Mahabir
Proton beam radiotherapy (PBR) has gained acceptance for the treatment of breast cancer because of unique beam characteristics that allow superior dose distributions with optimal dose to the target and limited collateral damage to adjacent normal tissue, especially to the heart and lungs. To determine the compatibility of breast tissue expanders (TEs) with PBR, we evaluated the structural and dosimetric properties of 2 ex vivo models: 1 model with internal struts and another model without an internal structure...
June 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28740779/using-the-venous-pectoral-branch-from-the-thoracoacromial-system-as-a-lifeboat-in-autologous-breast-reconstruction
#9
Michael Tarakji, Matthew J Bartow, Charles Dupin, Oren Tessler
The most common recipient vessels for autologous free flap breast reconstruction are the internal mammary vessels. At times, there are problems with the exposed internal mammary vein (IMV) that require other options such as using the contralateral IMV, superior rib resection to access proximal IMV, retrograde IMV use, and thoracodorsal vein access with or without a vein graft. This case demonstrates using the pectoral branch of the thoracoacromial venous system without a vein graft as a lifeboat option when the IMV is not suitable for anastomosis...
June 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28718036/paravertebral-blocks-reduce-narcotic-use-without-affecting-perfusion-in-patients-undergoing-autologous-breast-reconstruction
#10
Elizabeth B Odom, Nili Mehta, Rajiv P Parikh, Ryan Guffey, Terence M Myckatyn
BACKGROUND: Autologous breast reconstruction offers excellent long term outcomes after mastectomy. However, maintaining adequate postoperative analgesia remains challenging. Use of paravertebral blocks (PVBs) reduces postoperative narcotic use and length of stay, and enhanced recovery protocols with mixed analgesia methods are gaining popularity, but few studies have explored the intraoperative effects of these interventions. METHODS: Patients who underwent abdominally based autologous breast reconstruction between 2010 and 2016 were compiled into a retrospective database...
July 17, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28716116/catching-and-monitoring-clinical-innovation-through-performance-indicators-the-case-of-the-breast-conserving-surgery-indicator
#11
Anna Maria Murante, Silvio Candelori, Paola Rucci, Sabina Nuti, Manuela Roncella, Matteo Ghilli, Andrea Mercatelli, Maria Pia Fantini
BACKGROUND: The evolution in the surgical and diagnostic procedures, the attention to women's preferences, the case mix, and differences in professional practices may lead to a variability in the quality of breast cancer clinical pathway. To catch and manage this variability it is important to use valid measures. The aim of this paper is to examine the concurrent validity of the breast-conserving surgery (BCS) indicator and to provide evidence to guide the quality improvement process...
July 17, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28714966/nanoscale-imaging-of-clinical-specimens-using-pathology-optimized-expansion-microscopy
#12
Yongxin Zhao, Octavian Bucur, Humayun Irshad, Fei Chen, Astrid Weins, Andreea L Stancu, Eun-Young Oh, Marcello DiStasio, Vanda Torous, Benjamin Glass, Isaac E Stillman, Stuart J Schnitt, Andrew H Beck, Edward S Boyden
Expansion microscopy (ExM), a method for improving the resolution of light microscopy by physically expanding a specimen, has not been applied to clinical tissue samples. Here we report a clinically optimized form of ExM that supports nanoscale imaging of human tissue specimens that have been fixed with formalin, embedded in paraffin, stained with hematoxylin and eosin, and/or fresh frozen. The method, which we call expansion pathology (ExPath), converts clinical samples into an ExM-compatible state, then applies an ExM protocol with protein anchoring and mechanical homogenization steps optimized for clinical samples...
August 2017: Nature Biotechnology
https://www.readbyqxmd.com/read/28713853/factors-associated-with-acute-postoperative-pain-following-breast-reconstruction
#13
Anita R Kulkarni, Andrea L Pusic, Jennifer B Hamill, Hyungjin M Kim, Ji Qi, Edwin G Wilkins, Randy S Roth
INTRODUCTION: Post-mastectomy breast reconstruction has become an increasingly important component of breast cancer treatment. Unfortunately, some patients experience severe postoperative pain, placing them at risk for increased clinical morbidity and the development of disabling chronic pain. In an attempt to identify at-risk patients, we prospectively evaluated patient characteristics and medical/surgical variables associated with more severe acute post-reconstruction pain. METHODS: Women (N = 2207; one-week 82...
March 2017: JPRAS Open
https://www.readbyqxmd.com/read/28679691/metastatic-triple-negative-breast-cancer-patient-with-tp53-tumor-mutation-experienced-11-months-progression-free-survival-on-bortezomib-monotherapy-without-adverse-events-after-ending-standard-treatments-with-grade-3-adverse-events
#14
Tobias Meißner, Adam Mark, Casey Williams, Wolfgang E Berdel, Stephanie Wiebe, Andrea Kerkhoff, Eva Wardelmann, Timo Gaiser, Carsten Müller-Tidow, Philip Rosenstiel, Norbert Arnold, Brian Leyland-Jones, Andre Franke, Martin Stanulla, Michael Forster
A triple-negative breast cancer patient had no hereditary BRCA1, BRCA2, or TP53 risk variants. After exhaustion of standard treatments, she underwent experimental treatments and whole-exome sequencing of tumor, blood, and a metastasis. Well-tolerated experimental bortezomib monotherapy was administered for a progression-free period of 11 mo. After progression, treatments were changed and the exome data were evaluated, expanded with RNA and exome sequencing of a late-stage metastasis. In the final stage, eribulin alone and in combination with anthracyclines were administered...
July 2017: Cold Spring Harbor Molecular Case Studies
https://www.readbyqxmd.com/read/28671886/effect-of-drain-placement-on-infection-seroma-and-return-to-operating-room-in-expander-based-breast-reconstruction
#15
Caleb J Ollech, Lisa M Block, Ahmed M Afifi, Samuel O Poore
INTRODUCTION: There is significant variability in the location and management of drains in breast reconstruction, with most surgeons attempting to shorten the duration of drains while preventing complications possibly related to early removal. The aim of this work was to compare our experiences with placement of 1 versus 2 drains in tissue expander breast reconstruction. METHODS: This is a retrospective cohort study comparing 2 groups of patients after breast tissue expander placement in a complete submuscular pocket and without the use of acellular dermal matrix...
June 1, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28671885/effects-of-the-metallic-port-in-tissue-expanders-on-dose-distribution-in-postmastectomy-radiotherapy-a-tridimensional-experimental-model-of-dosimetry-in-breast-reconstruction
#16
Marcelo Felix da Silva, Harley Francisco de Oliveira, Leandro Frederich Borges, Helio Humberto Angotti Carrara, Jayme Adriano Farina
The purpose of this research was to develop an experimental model of dosimetry using a breast phantom and evaluate the effects of the metallic port in tissue expanders on dose distribution in postmastectomy radiotherapy. Dose distribution was assessed using an experimental acrylic dosimetry simulator in the absence and presence of a metallic disc (MD), which is similar to that used in tissue expanders containing a magnetic port, by collecting coronal and sagittal radiochromic films. Dosimetry film analysis did not show any changes in dose distribution, except for a MD shadow in the sagittal film where the dose distribution rate was on average 14% lower than in other areas...
June 1, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28656281/microrna-503-inhibits-the-proliferation-and-invasion-of-breast-cancer-cells-via-targeting-insulin-like-growth-factor-1-receptor
#17
Jingwang Yan, Yonghuan Xu, Haipeng Wang, Taiping Du, Hao Chen
MicroRNAs (miRs), a class of non-coding RNAs that are 18‑25 nucleotides in length, serve as key regulators in the development and progression of human cancers. Previously, miR‑503 has been implicated in breast cancer. However, the underlying mechanism of miR‑503 in regulating the proliferation and invasion of breast cancer cells remains largely unknown. In the present study, reverse transcription‑quantitative polymerase chain reaction analysis indicated that the expression of miR‑503 was significantly reduced in breast cancer tissues compared with their matched adjacent normal tissues...
August 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28641917/complications-in-tissue-expansion-a-logistic-regression-analysis-for-risk-factors
#18
Christian Smolle, Alexandru Tuca, Paul Wurzer, Stephanie M Spendel, Abigail A Forbes, Stephan Spendel, Michael Schintler, Emir Haxhija, Katja Schwenzer-Zimmerer, Herwig Friedl, Lars-Peter Kamolz, Daryousch Parvizi
BACKGROUND: Tissue expansion is frequently used in reconstructive surgery. Although the surgical procedure is typically considered simple, reported complication rates of tissue expansions exceed 40%. There is little evidence concerning risk factors for complications in tissue expansion in body regions other than breast. The aim was to determine risk factors for complications in non-breast tissue expansion. METHODS: 34 patients treated with subcutaneous tissue expanders between 2005 and 2014 were analyzed...
June 19, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/28634940/3d-primary-culture-model-to-study-human-mammary-development
#19
Daniel H Miller, Ethan S Sokol, Piyush B Gupta
We present a protocol for expanding human mammary tissues from primary patient-derived cells in three-dimensional (3D) cultures. The primary epithelial cells are seeded into 3D hydrogels with defined components, which include both proteins and carbohydrates present in mammary tissue. Over a span of 10-14 days, the seeded cells form mammary tissues with complex ductal-lobular topologies and include luminal and basal cells in the correct orientation, together with cells that stain positively for stem cell markers...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28611768/innate-immunity-and-breast-milk
#20
REVIEW
Nicole Theresa Cacho, Robert M Lawrence
Human milk is a dynamic source of nutrients and bioactive factors; unique in providing for the human infant's optimal growth and development. The growing infant's immune system has a number of developmental immune deficiencies placing the infant at increased risk of infection. This review focuses on how human milk directly contributes to the infant's innate immunity. Remarkable new findings clarify the multifunctional nature of human milk bioactive components. New research techniques have expanded our understanding of the potential for human milk's effect on the infant that will never be possible with milk formulas...
2017: Frontiers in Immunology
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