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Hypertrophic scar

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https://www.readbyqxmd.com/read/28425593/medium-sized-nevus-spilus-of-the-neck-treated-with-pulsed-dye-laser
#1
Vito Abrusci, Valentina Benzecry
Patients with large benign melanocytic lesions located on the neck represent a therapeutic challenge since the neck is a high-risk area for hypertrophic scarring and/or retraction. When treating a benign, extensive and visible melanocytic lesion, the choice of therapy mainly depends on the likelihood of improved cosmesis. We report a case of a 33-year-old woman with a medium-sized Nevus Spilus located on the neck, successfully treated with four sessions of pulsed dye laser. We achieved an excellent clinical and cosmetic result in such a challenging area...
April 20, 2017: Dermatologic Therapy
https://www.readbyqxmd.com/read/28403507/endothelial-dysfunction-and-mechanobiology-in-pathological-cutaneous-scarring-lessons-learned-from-soft-tissue-fibrosis
#2
REVIEW
C Huang, L Liu, Z You, Y Zhao, J Dong, Y Du, R Ogawa
Hypertrophic scars/keloids are pathogenic scars that are characterized by collagen and fibroblast accumulation. The endothelia in the lesions are mechanosensitive and participate actively in the pathogenesis of these scars. The present review summarizes how endothelium responds to mechanical stimuli such as shear, stretch, and hydrostatic pressure. It also shows that in heart, liver, kidney, and lung fibrosis, endothelial dysfunctions (EDs) associate with changes in vascular tone, endothelial permeability, coagulation, and vasomodulation that result in inflammation, hypertension, and coagulation...
April 12, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28403265/improvement-of-atrophic-acne-scars-in-skin-of-color-using-topical-synthetic-epidermal-growth-factor-egf-serum-a-pilot-study
#3
Marie Alexia Stoddard, Jennifer Herrmann, Lauren Moy, Ronald Moy
<p>BACKGROUND: Atrophic scarring in skin of color is a common, permanent, and distressing result of uncontrolled acne vulgaris. Ablative lasers and chemical peels are frequently used to improve the appearance of atrophic scars, primarily through the stimulation of collagen and elastin; however, these treatment modalities are associated with risks, such as dyspigmentation and hypertrophic scarring, especially in patients with darker skin.</p> <p>OBJECTIVE: We evaluated the efficacy of topically applied synthetic epidermal growth factor (EGF) serum in reducing the appearance of atrophic acne scars in skin of color...
April 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28402404/long-term-outcome-of-surgical-cryoablation-for-refractory-ventricular-tachycardia-in-patients-with-non-ischemic-cardiomyopathy
#4
Jackson J Liang, Brian P Betensky, Daniele Muser, Erica S Zado, Elad Anter, Nimesh D Desai, David J Callans, Rajat Deo, David S Frankel, Mathew D Hutchinson, David Lin, Michael P Riley, Robert D Schaller, Gregory E Supple, Pasquale Santangeli, Michael A Acker, Joseph E Bavaria, Wilson Y Szeto, Prashanth Vallabhajosyula, Francis E Marchlinski, Sanjay Dixit
Aims: Limited data exist on the long-term outcome of patients (pts) with non-ischemic cardiomyopathy (NICM) and ventricular tachycardia (VT) refractory to conventional therapies undergoing surgical ablation (SA). We aimed to investigate the long-term survival and VT recurrence in NICM pts with VT refractory to radiofrequency catheter ablation (RFCA) who underwent SA. Methods and results: Consecutive pts with NICM and VT refractory to RFCA who underwent SA were included...
April 10, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28401348/ultrapulsed-fractional-ablative-carbon-dioxide-laser-treatment-of-hypertrophic-burn-scars-evaluation-of-an-in-patient-controlled-standardized-treatment-approach
#5
Julian Poetschke, Ulf Dornseifer, Matteo Tretti Clementoni, Markus Reinholz, Hannah Schwaiger, Stephanie Steckmeier, Thomas Ruzicka, Gerd G Gauglitz
In this study, we aimed to quantify the effects of fractional ablative carbon dioxide laser therapy in the treatment of widespread hypertrophic burn scars. While many different pilot studies have described the potential of the technology and expert groups and current guidelines, alike, recommend its use, the level of evidence for the efficacy of fractional CO2-laser treatment for burn scars is currently very low. Ten patients (three male, seven female) with hypertrophic burn scars were treated with a single course of fractional CO2-laser therapy in an in-patient controlled setup, using a standardized treatment paradigm...
April 12, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28388720/new-uses-of-abobotulinumtoxina-in-aesthetics
#6
Joel Schlessinger, Erin Gilbert, Joel L Cohen, Joely Kaufman
BotulinumtoxinA (BoNT-A) is now widely established for the main approved indication of reducing glabellar lines, and is also widely used off-label to improve the appearance of wrinkles and lines in other parts of the face. The number of aesthetic procedures continues to increase as the patient population becomes more diverse, in particular with increasing numbers of people of color and men. Further developments in treatment may continue to expand the audience for BoNT-A by making procedures more comfortable and by delivering a more natural, less static appearance...
May 1, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/28384007/effect-of-chymase-activity-on-skin-thickness-in-the-clawn-miniature-pig-hypertrophic-scarring-model
#7
Shotaro Jimi, Hajime Matsumura
OBJECTIVE: The female red Duroc pig, a heavy and cumbersome animal, is routinely used as an animal model for hypertrophic scarring. Chymase, a chymotrypsin-like serine protease, plays an important role in skin fibrosis. This study aimed to create a lightweight pig hypertrophic scarring model using Clawn miniature pigs, and to investigate the role of chymase in hypertrophic scarring. METHODS: After creating four skin wounds (7.5 × 7.5 cm, depth = 0.15 cm) in each pig, skin biopsies were performed after 15, 30, 60, 90, 120, and 150 days...
April 6, 2017: Journal of Plastic Surgery and Hand Surgery
https://www.readbyqxmd.com/read/28374304/septum-enhanced-mammaplasty-in-inferocentral-pedicled-breast-reduction-for-macromastia-and-gigantomastia-patients
#8
Aurelio Portincasa, Francesco Ciancio, Luigi Cagiano, Alessandro Innocenti, Domenico Parisi
BACKGROUND: Inferior pedicle and free nipple grafting are commonly used as breast reduction techniques for patients with breast hypertrophy and gigantomastia. Limitations of these techniques are, respectively, possible vascular compromise and total/partial necrosis of the nipple-areola complex (NAC). The authors describe the innovative inferocentral pedicled reduction mammaplasty (ICPBR) enhanced by preservation of Würinger's septum for severe hypertrophic breasts. MATERIALS AND METHODS: Among 287 breast reductions performed between January 2001 and 2015, 83 (28...
April 3, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28370943/hypochlorous-acid-gel-technology-its-impact-on-postprocedure-treatment-and-scar-prevention
#9
REVIEW
Michael H Gold, Anneke Andriessen, Steven H Dayan, Sabrina G Fabi, Z Paul Lorenc, Meagan-Helen Henderson Berg
BACKGROUND: A pre-and postprocedure regime aimed at prevention of infection, reduction of inflammation and risk of scarring, is to enable optimal outcomes. OBJECTIVES: The role of a hypochlorous acid containing spray and translucent scar gel formulation that combines modified silicon oil with hypochlorous acid, was explored for pre- and postprocedure treatment and scar management. METHODS: For this purpose a literature review was conducted to explore the value of the technology used in pre-and postprocedural regimes...
March 30, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/28370931/thermal-injury-model-in-the-rabbit-ear-with-quantifiable-burn-progression-and-hypertrophic-scar
#10
Emily E Friedrich, Solmaz Niknam-Bienia, Ping Xie, Sheng-Xian Jia, Seok Jong Hong, Thomas A Mustoe, Robert D Galiano
Hypertrophic scar is a major clinical outcome of deep-partial thickness to full thickness thermal burn injury. Appropriate animal models are a limitation to burn research due to the lack of, or access to, animal models which address the endpoint of hypertrophic scar. Lower species, such as rodents, heal mainly by contracture, which limits the duration of study. Higher species, such as pigs, heal more similarly to humans, but are associated with high cost, long duration for scar development, challenges in quantifying scar hypertrophy, and poor manageability...
April 1, 2017: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/28370679/secreted-factors-from-equine-mesenchymal-stromal-cells-diminish-the-effects-of-tgf-%C3%AE-1-on-equine-dermal-fibroblasts-and-alter-the-phenotype-of-dermal-fibroblasts-isolated-from-cutaneous-fibroproliferative-wounds
#11
Rebecca M Harman, Ivanna V Bihun, Gerlinde R Van de Walle
The prevalence of cutaneous fibroproliferative disorders (CFPDs) is high and almost exclusively occurs in humans (keloids and hypertrophic scars) and horses (exuberant granulation tissue), making the horse a valuable translational model for studies on prevention and treatment of human CFPDs. CFPDs arise as a result of dysregulated wound healing characterized by persistently high levels of cytokines, such as transforming growth factor beta 1 (TGF-β1), that contribute to excessive extracellular matrix deposition, and the physical disorganization of dermal fibroblasts (DF)...
April 1, 2017: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/28368916/topical-negative-pressure-wound-therapy-of-burned-hands-functional-outcomes
#12
Denis Ehrl, Paul I Heidekrueger, P Niclas Broer, Holger C Erne
Extensive partial- and full-thickness burns, especially of the hands, continue to pose a surgical challenge. With improved knowledge regarding fluid balance, burn pathophysiology, and lately also given the introduction of topical negative pressure wound (TNPW) therapy, treatment regimes have changed in many burn centers. The authors evaluated the results regarding long-term outcomes of patients with partial- and full-thickness burns of the hands treated with TNPW. Over a period of 72 months, 51 patients with 80 hand burns received TNPW treatment...
March 31, 2017: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/28363664/evaluating-accuracy-and-reliability-of-active-stereophotogrammetry-using-mavis-iii-wound-camera-for-three-dimensional-assessment-of-hypertrophic-scars
#13
Samuel Su, Sarthak Sinha, Vincent Gabriel
OBJECTIVE: Current strategies for estimating positive scar volume following burns is limited to employing subjective scar scales. This study assesses the accuracy and reliability of Measurement of Area and Volume Instrument System (MAVIS) III, a portable 3D active stereophotogrammetric imaging system, for non-invasive assessment of hypertrophic scar volume and elucidates factors that leads to inaccurate volume determination. METHODS: To determine accuracy, hypertrophic scars arising in various skin and wound types were modeled using moldable putty substance...
March 28, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/28363297/scar-management-of-the-burned-hand
#14
REVIEW
Michael Sorkin, David Cholok, Benjamin Levi
Burn injury can result in hypertrophic scar formation that can lead to debilitating functional deficits and poor aesthetic outcomes. Although nonoperative modalities in the early phase of scar maturation are critical to minimize hypertrophic scar formation, surgical management is often indicated to restore hand function. The essential tenant of operative scar management is release of tension, which can often be achieved through local tissue rearrangement. Laser therapy has emerged as a central pillar of subsequent scar rehabilitation...
May 2017: Hand Clinics
https://www.readbyqxmd.com/read/28363295/biological-principles-of-scar-and-contracture
#15
REVIEW
Peter O Kwan, Edward E Tredget
Hypertrophic scar and contracture in burn patients is a complex process. Contributing factors include critical injury depth and activation of key cell subpopulations, including deep dermal fibroblasts, myofibroblasts, fibrocytes, and T-helper cells, which cause scarring rather than regeneration. These cells influence each other via cellular profibrotic and antifibrotic signals, which help to determine the outcome. These cells also both modify and interact with extracellular matrix of the wound, ultimately forming hypertrophic scar...
May 2017: Hand Clinics
https://www.readbyqxmd.com/read/28362515/fbp1-is-highly-expressed-in-human-hypertrophic-scars-and-increases-fibroblast-proliferation-apoptosis-and-collagen-expression
#16
Jieyi Zuo, Zhiying Chen, Xinchao Zhong, Wanli Lan, Yizhen Kuang, Dong Huang
PURPOSE: FBP1, one of the far-upstream element binding proteins (FBPs), is a distal upstream binding protein of c-myc, which is highly expressed in tumor tissues. This study aimed to investigate FBP1 expression in human hypertrophic scars and to determine the effects of FBP1 on fibroblasts. MATERIALS AND METHODS: Human normal skin and scar specimens were collected during clinical surgery. One portion of each tissue specimen was embedded in paraffin and sliced to observe differences in histological features and FBP1 expression by immunohistochemistry and western blotting...
March 31, 2017: Connective Tissue Research
https://www.readbyqxmd.com/read/28346732/asiaticoside-hinders-the-invasive-growth-of-keloid-fibroblasts-through-inhibition-of-the-gdf-9-mapk-smad-pathway
#17
Xin Wu, Difei Bian, Yannong Dou, Zhunan Gong, Qian Tan, Yufeng Xia, Yue Dai
Higher expression of growth differentiation factor-9 (GDF-9) in keloids compared with hypertrophic scars and normal skin tissues has been reported recently. The present study was performed to investigate the role of GDF-9 in keloid pathogenesis, and to elucidate its implication for asiaticoside in the keloid management. The data showed that GDF-9 could enhance the proliferation, migration, and invasion of keloid fibroblasts (KFs), while it only slightly elevated collagen expression, indicating that the effect of GDF-9 was opposite to that of TGF-β1...
March 27, 2017: Journal of Biochemical and Molecular Toxicology
https://www.readbyqxmd.com/read/28341261/occlusive-drainage-system-for-split-thickness-skin-graft-a-prospective-randomized-controlled-trial
#18
Sara Fu-Yin Hsiao, Hsu Ma, Yu-Hei Wang, Tien-Hsiang Wang
BACKGROUND: Split-thickness skin grafts are widely used in reconstruction of large area defects. Conventional postoperative recipient site care includes saline-moistened gauze with a protective layer of petroleum gauze and splints for immobilization. This method causes pain while changing the dressing. We designed a better occlusive drainage system for split-thickness skin grafts. We compared the treatment effect and subjective evaluation of our occlusive drainage system with that of the conventional method for coverage of split-thickness skin grafts...
March 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/28319503/myocardial-infarction-in-a-patient-with-hypertrophic-cardiomyopathy-but-normal-coronary-arteries
#19
Shuheng Li, Xiaoxin Sun, Zongyao Zhang, Zuo-Xiang He
A 57-year-old man with a history of hypertrophic cardiomyopathy diagnosed by echocardiography experienced atypical chest pain and dyspnea for 6 months. A rest Tc-MIBI myocardial SPECT imaging and a F-FDG myocardial PET/CT imaging were performed, which showed multiple matched myocardial perfusion/metabolism defects in the left ventricle, indicating scar tissue. Surprisingly, subsequent contrast coronary angiography revealed no significant coronary artery stenosis.
March 17, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28316163/-effects-of-silencing-smad-ubiquitination-regulatory-factor-2-on-the-function-of-human-hypertrophic-scar-derived-fibroblasts
#20
Z Zhang, F Kuang, C L Liu, B Chen, W B Tang, X J Li
Objective: To explore the effects of silencing Smad ubiquitination regulatory factor 2 (Smurf2) on the secretion of transforming growth factor beta 1 (TGF-β(1)), alpha-smooth muscle actin (α-SMA), and collagen type Ⅰ by human hypertrophic scar-derived fibroblasts. Methods: The human normal skin-derived fibroblasts and hypertrophic scar-derived fibroblasts were cultured with explant culture technique from the normal skin and hypertrophic scar tissue, which was obtained from 9 patients with hypertrophic scars after burn...
March 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
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