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Journal of the European Academy of... Nov 2020The cutaneous manifestations of COVID-19 patients have been increasingly reported, but not summarized, and the potential mechanisms remain to be investigated. Herein, we...
The cutaneous manifestations of COVID-19 patients have been increasingly reported, but not summarized, and the potential mechanisms remain to be investigated. Herein, we performed a comprehensive review of literatures (from inception to 30 May 2020) using PubMed, CNKI, medRxiv and bioRxiv with the terms "((novel coronavirus) OR (2019 novel coronavirus) OR (2019-nCoV) OR (Coronavirus disease 2019) OR (COVID-19) OR (SARS-CoV-2)) AND ((Dermatology) OR (skin) OR (rash) OR (cutaneous))" and "((ACE2) OR (Angiotensin-converting enzyme)) AND ((skin) OR (epidermis) OR (dermis))." Totally, 44 articles met the inclusion criteria. A total of 507 patients with cutaneous manifestations were summarized, and 96.25% patients were from Europe. The average age of the patients was 49.03 (range: 5-91) with a female ratio of 60.44%. The skin lesions were polymorphic, and erythema, chilblain-like and urticarial lesions were most common, occurring on an average of 9.92 days (range: 1-30) after the onset of systemic symptoms. The receptor of SARS-CoV-2, ACE2, was found to be expressed on skin, mainly on keratinocytes. Our review systematically presented the clinical characteristics of 507 patients and showed that skin might be the potential target of the infection according to ACE2 expression. More work should be done to better understand the underlying pathogenesis.
Topics: COVID-19; Humans; Peptidyl-Dipeptidase A; SARS-CoV-2; Skin Diseases
PubMed: 32594572
DOI: 10.1111/jdv.16778 -
Medicina (Kaunas, Lithuania) May 2023Laser treatments have become popular in Dermatology. In parallel to technologic development enabling the availability of different laser wavelengths, non-invasive skin...
Laser treatments have become popular in Dermatology. In parallel to technologic development enabling the availability of different laser wavelengths, non-invasive skin imaging techniques, such as reflectance confocal microscopy (RCM), have been used to explore morphologic and qualitative skin characteristics. Specifically, RCM can be applied to cosmetically sensitive skin areas such as the face, without the need for skin biopsies. For these reasons, apart from its current use in skin cancer diagnosis, our systematic review reveals how RCM can be employed in the field of laser treatment monitoring, being particularly suitable for the evaluation of variations in epidermis and dermis, and pigmentary and vascular characteristics of the skin. This systematic review article aims to provide an overview on current applications of RCM laser treatment monitoring, while describing RCM features identified for different applications. Studies on human subjects treated with laser treatments, monitored with RCM, were included in the current systematic review. Five groups of treatments were identified and described: skin rejuvenation, scar tissue, pigmentary disorders, vascular disorders and other. Interestingly, RCM can assist treatments with lasers targeting all chromophores in the skin and exploiting laser induced optical breakdown. Treatment monitoring encompasses assessment at baseline and examination of changes after treatment, therefore revealing details in morphologic alterations underlying different skin conditions and mechanisms of actions of laser therapy, as well as objectify results after treatment.
Topics: Humans; Skin; Skin Neoplasms; Skin Diseases; Pigmentation Disorders; Microscopy, Confocal
PubMed: 37374244
DOI: 10.3390/medicina59061039 -
JSES Reviews, Reports, and Techniques Aug 2022is a commensal intradermal microorganism that is commonly isolated at revision shoulder arthroplasty. Standard practice chlorhexidine gluconate (CHG) skin preparation... (Review)
Review
BACKGROUND
is a commensal intradermal microorganism that is commonly isolated at revision shoulder arthroplasty. Standard practice chlorhexidine gluconate (CHG) skin preparation agents have limited effectiveness at eradicating in the dermis. Benzoyl peroxide (BPO) has demonstrated effectiveness against . This meta-analysis compares the efficacy of at-home shoulder decolonization before surgery using CHG vs. BPO to reduce shoulder burden.
METHODS
This was a Preferred Reporting Items for Systematic Reviews and Meta-Analyses systematic review. PubMed and MEDLINE databases were searched for studies evaluating the effects of CHG and BPO in reducing at the shoulder. Trial results were extracted and pooled using a random effects model, separating data from randomized controlled trials (RCTs) and non-RCTs. Methodologic quality of studies was assessed using the Cochrane Risk of Bias Assessment Tools.
RESULTS
Ten studies (589 patients) were included. RCTs showed that both BPO and CHG led to significant reductions in culture positivity compared with negative controls (risk ratio [RR] with 95% confidence interval [CI] = 0.20 [0.13, 0.30], < .0001 and 0.46 [0.37, 0.57], < .0001, respectively). Non-RCT data demonstrated similar results comparing BPO and CHG to the control (RR with 95% CI = 0.34 [0.21, 0.57], < .0001 and 0.31 [0.20, 0.49], < .0001, respectively). Comparing BPO and CHG, RCT data showed a significant reduction in culture positivity with BPO (RR with 95% CI = 0.46 [0.27, 0.77], < .009). Of RCTs, 5 were low and one was of moderate risk of bias. Of non-RCTs, 3 had low risk of bias, whereas one had moderate risk of bias.
CONCLUSION
This review demonstrated that preoperative CHG and BPO can reduce at the shoulder. However, BPO exhibits greater efficacy than CHG, potentially because of the compound's ability to penetrate the dermis. BPO is a simple and economical agent that may reduce joint exposure to in shoulder surgery.
PubMed: 37588870
DOI: 10.1016/j.xrrt.2022.02.002 -
Dermatology Research and Practice 2021Photoaging can significantly contribute to lower quality of life. Medium-deep peeling using trichloroacetic acid allows controlled keratocoagulation through the dermis... (Review)
Review
Photoaging can significantly contribute to lower quality of life. Medium-deep peeling using trichloroacetic acid allows controlled keratocoagulation through the dermis and into the dermal papillary layer that is effective for skin rejuvenation. The purpose of this article is to give updates regarding the efficacy, possible adverse events, and patient satisfaction of trichloroacetic acid (TCA) peeling for skin rejuvenation by assessing various photoaging parameters. A systematic review of prospective trial articles collected from PubMed, MEDLINE, EMBASE, Cochrane, and Scopus databases was conducted on November 2, 2020. Treatment efficacy was assessed based on the photoaging parameters used by each study. Adverse events and patient satisfaction as the secondary outcome were assessed based on patients-perceived improvements. Five studies included three randomized comparison studies and two prospective cohort studies. These studies show that TCA peeling significantly improve the cosmesis of photoaged facial skin. Low concentration is effective for superficial sun damage. Medium-depth peels using a higher concentration of TCA or as combination therapy are effective as skin resurfacing agents to reduce wrinkles. Some adverse effects may occur but usually resolve within weeks. Overall patients were satisfied with the treatment result. An equivalent basic skin preparation such as topical retinoic acid skin priming prior to intervention is necessary for more objective comparison. Further research studies with a larger sample size and longer follow-up period are required. This evidence suggests that TCA peeling is effective in photoaging treatment, either as monotherapy or as combination therapy with other modalities.
PubMed: 34504524
DOI: 10.1155/2021/3085670 -
BMJ Global Health Oct 2023Microarray patches (MAPs) deliver vaccines to the epidermis and the upper dermis, where abundant immune cells reside. There are several potential benefits to using MAPs,... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Microarray patches (MAPs) deliver vaccines to the epidermis and the upper dermis, where abundant immune cells reside. There are several potential benefits to using MAPs, including reduced sharps risk, thermostability, no need for reconstitution, tolerability and self-administration. We aimed to explore and evaluate the immunogenicity, safety, usability and acceptability of MAPs for vaccination.
METHODS
We searched CINAHL, Cochrane Library, Ovid Embase, Ovid MEDLINE and Web of Science from inception to January 2023. Eligibility criteria included all research studies in any language, which examined microarrays or microneedles intended or used for vaccination and explored immunogenicity, safety, usability or acceptability in their findings. Two reviewers conducted title and abstract screening, full-text reviewing and data extraction.
RESULTS
Twenty-two studies were included (quantitative=15, qualitative=2 and mixed methods=5). The risk of bias was mostly low, with two studies at high risk of bias. Four clinical trials were included, three using influenza antigens and one with Japanese encephalitis delivered by MAP. A meta-analysis indicated similar or higher immunogenicity in influenza MAPs compared with needle and syringe (N&S) (standardised mean difference=10.80, 95% CI: 3.51 to 18.08, p<0.00001). There were no significant differences in immune cell function between MAPs and N&S. No serious adverse events were reported in MAPs. Erythema was more common after MAP application than N&S but was brief and well tolerated. Lower pain scores were usually reported after MAP application than N&S. Most studies found MAPs easy to use and highly acceptable among healthcare professionals, laypeople and parents.
CONCLUSION
MAPs for vaccination were safe and well tolerated and evoked similar or enhanced immunogenicity than N&S, but further research is needed. Vaccine uptake may be increased using MAPs due to less pain, enhanced thermostability, layperson and self-administration. MAPs could benefit at-risk groups and low and middle-income countries.
PROSPERO REGISTRATION NUMBER
CRD42022323026.
Topics: Humans; Influenza, Human; Vaccination; Vaccines; Pain
PubMed: 37827725
DOI: 10.1136/bmjgh-2023-012247 -
Journal of Plastic, Reconstructive &... Nov 2023Animal-derived acellular dermal matrices (ADMs) are increasingly being used in prepectoral direct-to-implant (DTI) breast reconstruction. However, the indications and... (Review)
Review
BACKGROUND
Animal-derived acellular dermal matrices (ADMs) are increasingly being used in prepectoral direct-to-implant (DTI) breast reconstruction. However, the indications and complication profile associated with this type of reconstruction remain unclear. This study aimed to perform a systematic review of the available literature on the use of animal-derived ADM in prepectoral DTI breast reconstruction.
METHODS
Three different literature databases, namely, PubMed, Web of Sciences, and Embase were screened using the following keywords: "immediate" AND "pre-pectoral" OR "prepectoral" AND "ADM breast reconstruction." Animal-derived ADM used (porcine - Braxon® and non-Braxon® - and bovine - Surgimend®) anthropometric information, clinical data, and complications profile were considered.
RESULTS
A total of 340 articles were initially identified, of which only 45 articles (5089 patients and 6598 reconstructed breasts) satisfied our inclusion criteria. The most widely used ADM was Braxon® in the context of conservative mastectomies. In most studies, a subcutaneous layer > 1 cm and lack of previous radiotherapy were considered prerequisites for this type of reconstruction. An increased risk of complications was found in smokers, patients who underwent radiation treatment, patients with high breast volumes, and patients with cancers requiring axillary dissection. Data related to the role of diabetes, high body mass index, and breast implant size on surgical outcomes were instead inconcludent. Age was not directly proportional to the complications.
CONCLUSION
The complications associated with different animal-derived ADMs are generally comparable. The profile of patients required for eligibility for this type of reconstruction appears to have been identified and is in line with current recommendations.
Topics: Humans; Animals; Cattle; Swine; Female; Mastectomy; Acellular Dermis; Breast Neoplasms; Mammaplasty; Breast Implantation; Breast Implants; Retrospective Studies
PubMed: 37716255
DOI: 10.1016/j.bjps.2023.08.020 -
Frontiers in Medicine 2021The skin is a flexible organ that forms a barrier between the environment and the body's interior; it is involved in the immune response, in protection and regulation,...
The skin is a flexible organ that forms a barrier between the environment and the body's interior; it is involved in the immune response, in protection and regulation, and is a dynamic environment in which skin lipids play an important role in maintaining homeostasis. The different layers of the skin differ in both the composition and amount of lipids. The epidermis displays the best characteristics in this respect. The main lipids in this layer are cholesterol, fatty acids (FAs) and ceramides. FAs can occur in free form and as components of complex molecules. The most poorly characterized FAs are very long-chain fatty acids (VLCFAs) and ultra long-chain fatty acids (ULCFAs). VLCFAs and ULCFAs are among the main components of ceramides and are part of the free fatty acid (FFA) fraction. They are most abundant in the brain, liver, kidneys, and skin. VLCFAs and ULCFAs are responsible for the rigidity and impermeability of membranes, forming the mechanically and chemically strong outer layer of cell membranes. Any changes in the composition and length of the carbon chains of FAs result in a change in their melting point and therefore a change in membrane permeability. One of the factors causing a decrease in the amount of VLCFAs and ULCFAs is an improper diet. Another much more important factor is mutations in the genes which code proteins involved in the metabolism of VLCFAs and ULCFAs-regarding their elongation, their attachment to ceramides and their transformation. These mutations have their clinical consequences in the form of inborn errors in metabolism and neurodegenerative disorders, among others. Some of them are accompanied by skin symptoms such as ichthyosis and ichthyosiform erythroderma. In the following review, the structure of the skin is briefly characterized and the most important lipid components of the skin are presented. The focus is also on providing an overview of selected proteins involved in the metabolism of VLCFAs and ULCFAs in the skin.
PubMed: 34497816
DOI: 10.3389/fmed.2021.730855 -
International Journal of Environmental... Oct 2022The present review aimed to systematically review skin toxicity changes following breast cancer radiotherapy (RT) using ultrasound (US). PubMed and Scopus databases were... (Review)
Review
The present review aimed to systematically review skin toxicity changes following breast cancer radiotherapy (RT) using ultrasound (US). PubMed and Scopus databases were searched according to PRISMA guidelines. The characteristics of the selected studies, measured parameters, US skin findings, and their association with clinical assessments were extracted. Seventeen studies were included with a median sample size of 29 (range 11-166). There were significant US skin changes in the irradiated skin compared to the nonirradiated skin or baseline measurements. The most observed change is skin thickening secondary to radiation-induced oedema, except one study found skin thinning after pure postmastectomy RT. However, eight studies reported skin thickening predated RT attributed to axillary surgery. Four studies used US radiofrequency (RF) signals and found a decrease in the hypodermis's Pearson correlation coefficient (PCC). Three studies reported decreased dermal echogenicity and poor visibility of the dermis-subcutaneous fat boundary (statistically analysed by one report). The present review revealed significant ultrasonographic skin toxicity changes in the irradiated skin most commonly skin thickening. However, further studies with large cohorts, appropriate US protocol, and baseline evaluation are needed. Measuring other US skin parameters and statistically evaluating the degree of the association with clinical assessments are also encouraged.
Topics: Humans; Female; Breast Neoplasms; Mastectomy; Breast; Skin Diseases; Skin
PubMed: 36294025
DOI: 10.3390/ijerph192013439 -
Annals of Palliative Medicine Jul 2022The efficacy and safety between connective tissue graft (CTG) and acellular dermal matrix (ADM) remain inconsistent. Meta-analysis is a valuable approach to resolve... (Meta-Analysis)
Meta-Analysis
Efficacy and safety of acellular dermal matrix versus connective tissue graft for root coverage of Miller's Class I and II gingival recession: a systematic review and meta-analysis.
BACKGROUND
The efficacy and safety between connective tissue graft (CTG) and acellular dermal matrix (ADM) remain inconsistent. Meta-analysis is a valuable approach to resolve inconsistencies across studies and provide a high level of evidence to comprehensively evaluate the effect and safety of ADM versus CTG for root coverage of Miller's Class I and II gingival recession. Our study was conducted to comprehensively analyze the efficacy and safety of ADM versus CTG for root coverage in patients with gingival recession.
METHODS
Articles on randomized controlled trials (RCTs) that compared the ADM with CTG for adult patients with the gingival recession in terms of percent root coverage (PRC), clinical attachment level (CAL), keratinized tissue (KT), probing depth (PD), recession width (RW), and recession depth (RD) were identified in PubMed, Embase, Cochrane Library, and Web of Science databases until 15 May 2020. Weighted mean difference (WMD) was used as the statistic for measurement data and the effect sizes were expressed as 95% confidence intervals (CIs).
RESULTS
A total of 24 RCTs were eligible for the final analysis. A total of 587 patients with 1,315 gingival recession sites were involved in the study. There were 724 loci in the ADM group and 591 loci in the CTG group. The patients who underwent ADM had a higher gain in CAL (WMD: 0.25, 95% CI: 0.03 to 0.47, P=0.026) but a smaller gain in KT width (WMD: -0.44, 95% CI: -0.63 to -0.25, P<0.001) than those who underwent CTG. No significant differences were found between the patients who underwent ADM and those who received CTG in PRC (WMD: -1.61, 95% CI: -3.49 to 0.28, P=0.094), PD (WMD: 0.07, 95% CI: -0.01 to 0.14, P=0.067), RW (WMD: 0.07, 95% CI: -0.10 to 0.23, P=0.437), and RD (WMD: 0.11, 95% CI: -0.10 to 0.31, P=0.294).
DISCUSSION
The ADM treatment for patients with gingival recession may be superior to CTG in gaining CAL, but CTG has a significant advantage over ADM for gaining KT width. ADM can be considered in the future as a treatment for root coverage in patients with gingival recession.
Topics: Acellular Dermis; Adult; Connective Tissue; Gingiva; Gingival Recession; Humans; Surgical Flaps; Treatment Outcome
PubMed: 35927781
DOI: 10.21037/apm-22-656 -
Journal of Plastic, Reconstructive &... Nov 2023Most breast reconstructions are implant-based and can be performed either in a one-stage, direct-to-implant or in a two-stage, expander-implant-based reconstruction. The... (Meta-Analysis)
Meta-Analysis Review
BACKGROUND
Most breast reconstructions are implant-based and can be performed either in a one-stage, direct-to-implant or in a two-stage, expander-implant-based reconstruction. The objective of this systematic review is to compare the safety and patient satisfaction of the two reconstruction approaches.
METHODS
A literature search was conducted on 27 September 2022 using various databases. Studies comparing one-stage and two-stage implant reconstructions and reporting the following outcomes were included: patient satisfaction, aesthetics, complications, and/or costs. Reviews, case reports, or series with less than 20 patients and letters or comments were excluded. Comparisons were made between the one-stage reconstruction with and without acellular dermal matrix (ADM) and two-stage implant-based breast reconstruction groups. The data extracted from all articles were analysed using random-effects meta-analyses.
RESULTS
Of the 1381 records identified, a total of 33 articles were included, representing 21529 patients. There were no significant differences between the one-stage and two-stage groups, except for the costs. The one-stage operation without ADM had lower costs than the two-stage operation without ADM, although the use of an ADM substantially increased the price of the operation to more than a two-stage reconstruction.
DISCUSSION
Equal patient satisfaction, aesthetic outcomes, and complication rates with lower costs justify one-stage breast reconstruction in carefully selected patients. This review shows that there is no evidence-based superior surgical approach. Future research should focus on the costs of the ADM versus an additional stage and patient-reported outcomes.
Topics: Humans; Female; Breast Implants; Breast Implantation; Treatment Outcome; Mastectomy; Mammaplasty; Acellular Dermis; Breast Neoplasms; Retrospective Studies
PubMed: 37716248
DOI: 10.1016/j.bjps.2023.08.021