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Wounds : a Compendium of Clinical... Dec 2019Burn wounds are one of the main causes of skin damage. Based on World Health Organization statistics, almost 300 000 people worldwide die of burns each year. In severe... (Review)
Review
Burn wounds are one of the main causes of skin damage. Based on World Health Organization statistics, almost 300 000 people worldwide die of burns each year. In severe burns, the cells and blood vessels are often injured and the blood supply to the wound is disturbed. Many factors such as oxygenation, infection, aging, hormones, and nutrition potentially can influence burn progression and disrupt repair with unbalanced release of various growth factors and cytokines. Different treatment approaches such as dressings and skin substitutes have been applied to aid wound healing. A thorough understanding of the effective factors on burns can improve wound healing outcomes. This review evaluates articles published on the Scopus, EMBASE, and PubMed databases that attempt to explain the pathophysiology, molecular components, and therapeutic approaches involved in the burn wound healing process.
Topics: Bandages; Burns; Disease Progression; Humans; Oxidative Stress; Skin Transplantation; Skin, Artificial; Wound Healing
PubMed: 31730513
DOI: No ID Found -
Cells Mar 2021With the global prevalence of type 2 diabetes mellitus steeply rising, instances of chronic, hard-healing, or non-healing diabetic wounds and ulcers are predicted to... (Review)
Review
With the global prevalence of type 2 diabetes mellitus steeply rising, instances of chronic, hard-healing, or non-healing diabetic wounds and ulcers are predicted to increase. The growing understanding of healing and regenerative mechanisms has elucidated critical regulators of this process, including key cellular and humoral components. Despite this, the management and successful treatment of diabetic wounds represents a significant therapeutic challenge. To this end, the development of novel therapies and biological dressings has gained increased interest. Here we review key differences between normal and chronic non-healing diabetic wounds, and elaborate on recent advances in wound healing treatments with a particular focus on biological dressings and their effect on key wound healing pathways.
Topics: Chronic Disease; Diabetes Mellitus, Type 2; Diabetic Foot; Humans; Skin, Artificial; Wound Healing; Wounds and Injuries
PubMed: 33804192
DOI: 10.3390/cells10030655 -
International Journal of Molecular... Apr 2017Tissue engineered skin substitutes for wound healing have evolved tremendously over the last couple of years. New advances have been made toward developing skin... (Review)
Review
Tissue engineered skin substitutes for wound healing have evolved tremendously over the last couple of years. New advances have been made toward developing skin substitutes made up of artificial and natural materials. Engineered skin substitutes are developed from acellular materials or can be synthesized from autologous, allograft, xenogenic, or synthetic sources. Each of these engineered skin substitutes has their advantages and disadvantages. However, to this date, a complete functional skin substitute is not available, and research is continuing to develop a competent full thickness skin substitute product that can vascularize rapidly. There is also a need to redesign the currently available substitutes to make them user friendly, commercially affordable, and viable with longer shelf life. The present review focuses on providing an overview of advances in the field of tissue engineered skin substitute development, the availability of various types, and their application.
Topics: Biocompatible Materials; Humans; Regeneration; Skin Physiological Phenomena; Skin Transplantation; Skin, Artificial; Tissue Engineering; Wound Healing
PubMed: 28387714
DOI: 10.3390/ijms18040789 -
Critical Care (London, England) Jun 2015Burns are a prevalent and burdensome critical care problem. The priorities of specialized facilities focus on stabilizing the patient, preventing infection, and... (Review)
Review
Burns are a prevalent and burdensome critical care problem. The priorities of specialized facilities focus on stabilizing the patient, preventing infection, and optimizing functional recovery. Research on burns has generated sustained interest over the past few decades, and several important advancements have resulted in more effective patient stabilization and decreased mortality, especially among young patients and those with burns of intermediate extent. However, for the intensivist, challenges often exist that complicate patient support and stabilization. Furthermore, burn wounds are complex and can present unique difficulties that require late intervention or life-long rehabilitation. In addition to improvements in patient stabilization and care, research in burn wound care has yielded advancements that will continue to improve functional recovery. This article reviews recent advancements in the care of burn patients with a focus on the pathophysiology and treatment of burn wounds.
Topics: Bandages; Biomarkers; Burns; Diagnostic Imaging; Edema; Fluid Therapy; Humans; Inflammation; Keratinocytes; Nutritional Support; Obesity; Resuscitation; Skin Transplantation; Skin, Artificial; Stem Cell Transplantation; Wound Healing; Wound Infection
PubMed: 26067660
DOI: 10.1186/s13054-015-0961-2 -
The Cochrane Database of Systematic... Mar 2013An acute burn wound is a complex and evolving injury. Extensive burns produce systemic consequences, in addition to local tissue damage. Treatment of partial thickness... (Meta-Analysis)
Meta-Analysis Review
BACKGROUND
An acute burn wound is a complex and evolving injury. Extensive burns produce systemic consequences, in addition to local tissue damage. Treatment of partial thickness burn wounds is directed towards promoting healing and a wide variety of dressings are currently available. Improvements in technology and advances in understanding of wound healing have driven the development of new dressings. Dressing selection should be based on their effects on healing, but ease of application and removal, dressing change requirements, cost and patient comfort should also be considered.
OBJECTIVES
To assess the effects of burn wound dressings on superficial and partial thickness burns.
SEARCH METHODS
For this first update we searched The Cochrane Wounds Group Specialised Register (searched 8 November 2012); The Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library 2012, Issue 10); Ovid MEDLINE (2008 to October Week 4 2012); Ovid MEDLINE (In-Process & Other Non-Indexed Citations, November 07, 2012); Ovid EMBASE (2008 to 2012 Week 44); AND EBSCO CINAHL (1982 to 2 November 2012).
SELECTION CRITERIA
All randomised controlled trials (RCTs) that evaluated the effects of burn wound dressings on the healing of superficial and partial thickness burns.
DATA COLLECTION AND ANALYSIS
Two authors extracted the data independently using standardised forms. We assessed each trial for internal validity and resolved differences by discussion.
MAIN RESULTS
A total of 30 RCTs are included in this review. Overall both the quality of trial reporting and trial conduct were generally poor and meta analysis was largely precluded due to study heterogeneity or poor data reporting. In the context of this poor quality evidence, silver sulphadiazine (SSD) was consistently associated with poorer healing outcomes than biosynthetic (skin substitute) dressings, silver-containing dressings and silicon-coated dressings. Burns treated with hydrogel dressings appear to heal more quickly than those treated with usual care.
AUTHORS' CONCLUSIONS
There is a paucity of high-quality evidence regarding the effect of different dressings on the healing of superficial and partial thickness burn injuries. The studies summarised in this review evaluated a variety of interventions, comparators and clinical endpoints and all were at risk of bias. It is impossible to draw firm and confident conclusions about the effectiveness of specific dressings, however silver sulphadiazine was consistently associated with poorer healing outcomes than biosynthetic, silicon-coated and silver dressings whilst hydrogel-treated burns had better healing outcomes than those treated with usual care.
Topics: Bandages; Bandages, Hydrocolloid; Burns; Humans; Randomized Controlled Trials as Topic; Silicon Compounds; Silver Sulfadiazine; Skin, Artificial; Wound Healing
PubMed: 23543513
DOI: 10.1002/14651858.CD002106.pub4 -
Plastic and Reconstructive Surgery Jul 2019The management of deep partial-thickness and full-thickness skin defects remains a significant challenge. Particularly with massive defects, the current standard...
BACKGROUND
The management of deep partial-thickness and full-thickness skin defects remains a significant challenge. Particularly with massive defects, the current standard treatment, split-thickness skin grafting, is fraught with donor-site limitations and unsatisfactory long-term outcomes. A novel, autologous, bioengineered skin substitute was developed to address this problem.
METHODS
To determine whether this skin substitute could safely provide permanent defect coverage, a phase I clinical trial was performed at the University Children's Hospital Zurich. Ten pediatric patients with acute or elective deep partial- or full-thickness skin defects were included. Skin grafts of 49 cm were bioengineered using autologous keratinocytes and fibroblasts isolated from a patient's small skin biopsy specimen (4 cm), incorporated in a collagen hydrogel.
RESULTS
Graft take, epithelialization, infection, adverse events, skin quality, and histology were analyzed. Median graft take at 21 days postoperatively was 78 percent (range, 0 to 100 percent). Healed skin substitutes were stable and skin quality was nearly normal. There were four cases of hematoma leading to partial graft loss. Histology at 3 months revealed a well-stratified epidermis and a dermal compartment comparable to native skin. Mean follow-up duration was 15 months.
CONCLUSIONS
In the first clinical application of this novel skin substitute, safe coverage of skin defects was achieved. Safety and efficacy phase II trials comparing the novel skin substitute to split-thickness skin grafts are ongoing.
CLINICAL QUESTION/LEVEL OF EVIDENCE
Therapeutic, IV.
Topics: Adolescent; Bioengineering; Burns; Cells, Cultured; Child; Child, Preschool; Dermis; Epidermal Cells; Epidermis; Female; Fibroblasts; Humans; Infant; Keratinocytes; Male; Prospective Studies; Skin; Skin Transplantation; Skin, Artificial; Transplantation, Autologous
PubMed: 31246829
DOI: 10.1097/PRS.0000000000005746 -
Clinical Oral Implants Research Sep 2009The aim of the present review was to systematically assess the dental literature in terms of soft tissue grafting techniques. The focused question was: is one method... (Meta-Analysis)
Meta-Analysis Review
AIM
The aim of the present review was to systematically assess the dental literature in terms of soft tissue grafting techniques. The focused question was: is one method superior over others for augmentation and stability of the augmented soft tissue in terms of increasing the width of keratinized tissue (part 1) and gain in soft tissue volume (part 2).
METHODS
A Medline search was performed for human studies focusing on augmentation of keratinized tissue and/or soft tissue volume, and complemented by additional hand searching. Relevant studies were identified and statistical results were reported for meta-analyses including the test minus control weighted mean differences with 95% confidence intervals, the I-squared statistic for tests of heterogeneity, and the number of significant studies.
RESULTS
Twenty-five (part 1) and three (part 2) studies met the inclusion criteria; 14 studies (part 1) were eligible for comparison using meta-analyses. An apically positioned flap/vestibuloplasty (APF/V) procedure resulted in a statistically significantly greater gain in keratinized tissue than untreated controls. APF/V plus autogenous tissue revealed statistically significantly more attached gingiva compared with untreated controls and a borderline statistical significance compared with APF/V plus allogenic tissue. Statistically significantly more shrinkage was observed for the APF/V plus allogenic graft compared with the APF/V plus autogenous tissue. Patient-centered outcomes did not reveal any of the treatment methods to be superior regarding postoperative complications. The three studies reporting on soft tissue volume augmentation could not be compared due to lack of homogeneity. The use of subepithelial connective tissue grafts (SCTGs) resulted in statistically significantly more soft tissue volume gain compared with free gingival grafts (FGGs).
CONCLUSIONS
APF/V is a successful treatment concept to increase the width of keratinized tissue or attached gingiva around teeth. The addition of autogenous tissue statistically significantly increases the width of attached gingiva. For soft tissue volume augmentation, only limited data are available favoring SCTGs over FGG.
Topics: Collagen; Connective Tissue; Gingiva; Gingivoplasty; Humans; Keratins; Skin, Artificial; Vestibuloplasty
PubMed: 19663961
DOI: 10.1111/j.1600-0501.2009.01784.x -
Minerva Medica Jun 2021Wound healing, especially of chronic wounds, is still an unmet therapeutic area since assessment and management are extremely complicated. Although many efforts have... (Review)
Review
Wound healing, especially of chronic wounds, is still an unmet therapeutic area since assessment and management are extremely complicated. Although many efforts have been made to treat wounds, all strategies have achieved limited results for chronic wounds. Stem cell-based therapy is considered a promising approach for complex wounds such as those occurring in diabetics. Mesenchymal stem cell transplantation significantly improves wound closure, angiogenesis and wound healing. However, cell therapy is complex, expensive and time-consuming. Recent studies have shown that stem cell-derived exosomes can be an exciting approach to treat wounds. Exosomes derived from mesenchymal stem cells can induce benefit in almost all stages of wound healing, including control of immune responses, inhibition of inflammation, promoting cell proliferation and angiogenesis, while reducing scar formation during the wound healing process. This review aimed at offering an updated overview of the use of exosomes in biological applications, such as wound healing, and addresses not only current applications but also new directions for this next-generation approach in wound healing.
Topics: Animals; Bandages; Cell Proliferation; Chronic Disease; Cytokines; Exosomes; Extracellular Matrix; Hemostasis; Humans; Inflammation; Intercellular Signaling Peptides and Proteins; Mesenchymal Stem Cells; Models, Animal; Neovascularization, Physiologic; Skin, Artificial; Wound Healing; Wounds and Injuries
PubMed: 33263376
DOI: 10.23736/S0026-4806.20.07205-5 -
Dermatologic Clinics Jul 2000No longer an option of last resort, skin grafting has become a technique that is routinely and sometimes preferentially considered as skin replacement for burns, chronic... (Review)
Review
No longer an option of last resort, skin grafting has become a technique that is routinely and sometimes preferentially considered as skin replacement for burns, chronic ulcers, and skin defects after cutaneous surgical procedures. When selected as the best alternative for wound closure, autologous skin grafts are commonly considered the gold standard. Availability of autologous grafts is a major obstacle, however, and the search for a manufactured skin replacement has continued. In cases in which autologous grafts cannot be performed, skin substitutes have become an attractive alternative.
Topics: Dermatology; Humans; Skin Transplantation; Skin, Artificial; Transplantation, Autologous; Transplantation, Homologous
PubMed: 10943546
DOI: 10.1016/s0733-8635(05)70199-6 -
International Wound Journal Sep 2023Fish skin grafting as a new skin substitute is currently being used in clinical applications. Acceleration of the wound healing, lack of disease transmission, and low... (Review)
Review
Fish skin grafting as a new skin substitute is currently being used in clinical applications. Acceleration of the wound healing, lack of disease transmission, and low cost of the production process can introduce fish skin as a potential alternative to other grafts. An appropriate decellularization process allows the design of 3D acellular scaffolds for skin regeneration without damaging the morphology and extracellular matrix content. Therefore, the role of decellularization processes is very important to maintain the properties of fish skin. In this review article, recent studies on various decellularization processes as well as biological, physical, and mechanical properties of fish skin and its applications with therapeutic effects in wound healing were investigated.
Topics: Animals; Wound Healing; Skin Transplantation; Skin, Artificial; Extracellular Matrix; Fishes; Acellular Dermis
PubMed: 36924081
DOI: 10.1111/iwj.14158