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Dissemond J, Chadwick P, Weir D, Alves P, Isoherranen K, Lázaro Martínez JL, Swanson T, Gledhill A, Malone M. M.O.I.S.T. Concept for the Local Therapy of Chronic Wounds: An International Update. INT J LOW EXTR WOUND 2024:15347346241245159. [PMID: 38571403 DOI: 10.1177/15347346241245159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2024]
Abstract
Chronic wounds remain a significant clinical challenge both for those affected and for healthcare systems. The treatment is often comprised and complex. All patients should receive wound care that is integrated into a holistic approach involving local management that addresses the underlying etiology and provides for gold standard therapy to support healing, avoid complications and be more cost effective. There have been significant advances in medicine over the last few decades. The development of new technologies and therapeutics for the local treatment of wounds is also constantly increasing. To help standardize clinical practice with regard to the multitude of wound products, the M.O.I.S.T. concept was developed by a multidisciplinary expert group. The M stands for moisture balance, O for oxygen balance, I for infection control, S for supporting strategies, and T for tissue management. Since the M.O.I.S.T. concept, which originated in the German-speaking countries, is now intended to provide healthcare professionals with an adapted instrument to be used in clinical practice, and a recent update to the concept has been undertaken by a group of interdisciplinary experts to align it with international standards. The M.O.I.S.T. concept can now be used internationally both as an educational tool and for the practical implementation of modern local treatment concepts for patients with chronic wounds and can also be used in routine clinical practice.
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Affiliation(s)
- Joachim Dissemond
- Department of Dermatology, Venerology and Allergology, University of Essen, Essen, Germany
| | | | - Dot Weir
- Saratoga Hospital Center for Wound Healing and Hyperbaric Medicine, Saratoga Springs, NY, USA
| | - Paulo Alves
- Universidade Católica Portuguesa, Institute of Health Sciences - Wounds Research Lab, Lisboa, Portugal
| | - Kirsi Isoherranen
- Department of Dermatology and Allergology, University of Helsinki and Inflammation center, Helsinki University Hospital and Helsinki University, Helsinki, Finland
| | | | - Terry Swanson
- Wound Education Research Consultancy, Warrnambool, Victoria, Australia
| | - Andrea Gledhill
- Department of Podiatric Surgery, Trauma and Orthopaedics, Great Western Hospital NHSFT, Swindon, UK
| | - Matthew Malone
- Research and Development, Molnlycke Healthcare AB, Gothenburg, Sweden
- Infectious Diseases Microbiology, School of Medicine, Western Sydney University, Sydney, Australia
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Layer JP, Layer K, Glasmacher AR, Sarria GR, Böhner AMC, Layer YL, Dejonckheere CS, Wiegreffe S, Nour Y, Caglayan L, Grau F, Feyer P, Baumert BG, Baumann R, Krug D, Scafa D, Leitzen C, Landsberg J, Giordano FA, Schmeel LC. Pharmaceutical management of acute radiation dermatitis in the German speaking radiation oncology community. J Dtsch Dermatol Ges 2024; 22:198-207. [PMID: 38092687 DOI: 10.1111/ddg.15279] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 09/20/2023] [Indexed: 02/17/2024]
Abstract
BACKGROUND Radiation dermatitis (RD) remains the most common side effect in radiation therapy (RT) with various pharmaceutical options available for prevention and treatment. We sought to determine pharmaceutical management patterns of radiation dermatitis among radiation oncology professionals. METHODS We conducted a survey on RD among the German-speaking community of radiation oncologists inquiring for their opinion on preventive and therapeutic pharmaceutical approaches for acute RD. RESULTS 244 health professionals participated. Dexpanthenol lotion is the agent most widely used both for prevention (53.0%) and treatment (76.9%) of RD, followed by urea (29.8%) for prevention and corticosteroids (46.9%) for treatment. A wide range of substances is used by participants, though the overall experience with them is rather limited. 32.5% of participants do generally not recommend any preventative treatment. 53.4% of participants recommend alternative medicine for RD management. While seldomly used, corticosteroids were considered most effective in RD therapy, followed by dexpanthenol and low-level laser therapy. A majority of participants prefers moist over dry treatment of moist desquamation and 43.8% prescribe antiseptics. CONCLUSIONS Pharmaceutical management of RD in the German-speaking radiation oncology community remains controversial, inconsistent, and partially not supported by evidence-based medicine. Stronger evidence level and interdisciplinary consensus is required amongst practitioners to improve these care patterns.
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Affiliation(s)
- Julian P Layer
- Department of Radiation Oncology, University Hospital Bonn, University of Bonn, Bonn, Germany
- Institute of Experimental Oncology, University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Katharina Layer
- Department of Radiation Oncology, University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Andrea R Glasmacher
- Department of Radiation Oncology, University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Gustavo R Sarria
- Department of Radiation Oncology, University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Alexander M C Böhner
- Department of Radiation Oncology, University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Yonah L Layer
- Department of Radiation Oncology, University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Cas S Dejonckheere
- Department of Radiation Oncology, University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Shari Wiegreffe
- Department of Radiation Oncology, University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Youness Nour
- Department of Radiation Oncology, University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Lara Caglayan
- Department of Radiation Oncology, University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Franziska Grau
- Department of Radiation Oncology, University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Petra Feyer
- Department of Radiation Oncology, Vivantes Hospital Neukölln, Berlin, Germany
| | - Brigitta G Baumert
- Institute of Radiation Oncology, Cantonal Hospital Graubünden, Chur, Switzerland
| | - René Baumann
- Department of Radiation Oncology, St. Marien Hospital Siegen, Siegen, Germany
| | - David Krug
- Department of Radiation Oncology, University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Davide Scafa
- Department of Radiation Oncology, University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Christina Leitzen
- Department of Radiation Oncology, University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Jennifer Landsberg
- Department of Dermatology, University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Frank A Giordano
- Department of Radiation Oncology, University Hospital Mannheim, University of Heidelberg, Mannheim, Germany
- DKFZ Hector Cancer Institute, University Medical Center Mannheim, Mannheim, Germany
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Layer JP, Layer K, Glasmacher AR, Sarria GR, Böhner AMC, Layer YL, Dejonckheere CS, Wiegreffe S, Nour Y, Caglayan L, Grau F, Feyer P, Baumert BG, Baumann R, Krug D, Scafa D, Leitzen C, Landsberg J, Giordano FA, Schmeel LC. Pharmazeutische Behandlung der akuten Radiodermatitis in der deutschsprachigen strahlentherapeutischen Gemeinschaft: Pharmaceutical management of acute radiation dermatitis in the German speaking radiation oncology community. J Dtsch Dermatol Ges 2024; 22:198-209. [PMID: 38361198 DOI: 10.1111/ddg.15279_g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 09/20/2023] [Indexed: 02/17/2024]
Abstract
ZusammenfassungHintergrundDie Radiodermatitis (RD) ist die häufigste Nebenwirkung der Strahlentherapie (RT), wobei verschiedene pharmazeutische Optionen zur Vorbeugung/Behandlung zur Verfügung stehen. Unser Ziel war, die pharmazeutischen Behandlungsmuster für die RD unter strahlentherapeutischen Fachleuten zu ermitteln.MethodikWir haben eine Umfrage zum Thema RD in der deutschsprachigen radioonkologischen Gemeinschaft durchgeführt und ihre Meinung zu präventiven und therapeutischen pharmazeutischen Therapieansätzen betreffend die akute RD erfragt.Ergebnisse244 Angehörige zugehöriger Gesundheitsberufe nahmen teil. Dexpanthenol‐Lotion ist das am häufigsten verwendete Mittel sowohl zur Vorbeugung (53%) als auch zur Behandlung (76,9%) der RD, gefolgt von Harnstoff (29,8%) zur Vorbeugung und Kortikosteroiden (46,9%) zur Behandlung. Die Teilnehmer verwenden eine breite Palette an Substanzen, haben aber insgesamt wenig Erfahrung mit diesen. 32,5% der Teilnehmer empfehlen generell keine präventive Behandlung. 53,4% der Teilnehmer empfehlen Alternativmedizin. Obwohl selten eingesetzt, wurden Kortikosteroide als wirksamstes Behandlungsmittel angesehen, gefolgt von Dexpanthenol und Low‐Level‐Lasertherapie. Die Mehrheit der Teilnehmer bevorzugt die feuchte gegenüber der trockenen Behandlung der feuchten Desquamation und 43,8% verschreiben Antiseptika.SchlussfolgerungenDie pharmazeutische Behandlung der RD in der deutschsprachigen strahlentherapeutischen Fachwelt ist nach wie vor umstritten, sowie mitunter inkonsistent und nicht durch evidenzbasierte Medizin gestützt. Ein interdisziplinärer Konsens ist erforderlich, um die bestehenden Behandlungskonzepte zu verbessern.
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Affiliation(s)
- Julian P Layer
- Abteilung für Strahlentherapie und Radioonkologie, Universitätsklinikum Bonn, Universität Bonn, Bonn, Deutschland
- Institut für Experimentelle Onkologie, Universitätsklinikum Bonn, Universität Bonn, Bonn, Deutschland
| | - Katharina Layer
- Abteilung für Strahlentherapie und Radioonkologie, Universitätsklinikum Bonn, Universität Bonn, Bonn, Deutschland
| | - Andrea R Glasmacher
- Abteilung für Strahlentherapie und Radioonkologie, Universitätsklinikum Bonn, Universität Bonn, Bonn, Deutschland
| | - Gustavo R Sarria
- Abteilung für Strahlentherapie und Radioonkologie, Universitätsklinikum Bonn, Universität Bonn, Bonn, Deutschland
| | - Alexander M C Böhner
- Abteilung für Strahlentherapie und Radioonkologie, Universitätsklinikum Bonn, Universität Bonn, Bonn, Deutschland
| | - Yonah L Layer
- Abteilung für Strahlentherapie und Radioonkologie, Universitätsklinikum Bonn, Universität Bonn, Bonn, Deutschland
| | - Cas S Dejonckheere
- Abteilung für Strahlentherapie und Radioonkologie, Universitätsklinikum Bonn, Universität Bonn, Bonn, Deutschland
| | - Shari Wiegreffe
- Abteilung für Strahlentherapie und Radioonkologie, Universitätsklinikum Bonn, Universität Bonn, Bonn, Deutschland
| | - Youness Nour
- Abteilung für Strahlentherapie und Radioonkologie, Universitätsklinikum Bonn, Universität Bonn, Bonn, Deutschland
| | - Lara Caglayan
- Abteilung für Strahlentherapie und Radioonkologie, Universitätsklinikum Bonn, Universität Bonn, Bonn, Deutschland
| | - Franziska Grau
- Abteilung für Strahlentherapie und Radioonkologie, Universitätsklinikum Bonn, Universität Bonn, Bonn, Deutschland
| | - Petra Feyer
- Abteilung für Strahlenonkologie, Vivantes Klinikum Neukölln, Berlin, Deutschland
| | | | - René Baumann
- Abteilung für Strahlenonkologie, St. Marien-Krankenhaus Siegen, Siegen, Deutschland
| | - David Krug
- Abteilung für Strahlenonkologie, Universitätsklinikum Schleswig-Holstein, Kiel, Deutschland
| | - Davide Scafa
- Abteilung für Strahlentherapie und Radioonkologie, Universitätsklinikum Bonn, Universität Bonn, Bonn, Deutschland
| | - Christina Leitzen
- Abteilung für Strahlentherapie und Radioonkologie, Universitätsklinikum Bonn, Universität Bonn, Bonn, Deutschland
| | - Jennifer Landsberg
- Abteilung für Dermatologie, Universitätsklinikum Bonn, Universität Bonn, Bonn, Deutschland
| | - Frank A Giordano
- Abteilung für Strahlenonkologie, Universitätsklinikum Mannheim, Universität Heidelberg, Mannheim, Deutschland
- DKFZ Hector Cancer Institute am Universitätsklinikum Mannheim, Mannheim, Germany
| | - Leonard Christopher Schmeel
- Abteilung für Strahlentherapie und Radioonkologie, Universitätsklinikum Bonn, Universität Bonn, Bonn, Deutschland
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Gould LJ, Alderden J, Aslam R, Barbul A, Bogie KM, El Masry M, Graves LY, White-Chu EF, Ahmed A, Boanca K, Brash J, Brooks KR, Cockron W, Kennerly SM, Livingston AK, Page J, Stephens C, West V, Yap TL. WHS guidelines for the treatment of pressure ulcers-2023 update. Wound Repair Regen 2024; 32:6-33. [PMID: 37970711 DOI: 10.1111/wrr.13130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 09/04/2023] [Accepted: 11/09/2023] [Indexed: 11/17/2023]
Abstract
The major populations at risk for developing pressure ulcers are older adults who have multiple risk factors that increase their vulnerability, people who are critically ill and those with spinal cord injury/disease. The reported prevalence of pressure ulcers in the United States is 2.5 million. However, this estimate is derived from acute care facilities and does not include people who are living at home or in nursing facilities. Despite the implementation of hospital and facility-based preventive measures, the incidence of pressure ulcers has not decreased in decades. In addition to the burden of pain, infection and death, it is estimated that hospital-acquired pressure ulcers cost the health system $26.8 billion annually with over 50% of the cost attributed to treating Stage 3 and 4 pressure injuries. Thus, it is critical to examine the literature and develop guidelines that will improve the outcomes of this complex and costly condition. This guideline update is a compendium of the best available evidence for the treatment of Pressure Ulcers published since the last update in 2015 and includes a new section based on changing demographics entitled 'Palliative wound care for seriously ill patients with pressure ulcers'. The overall goal of the Wound Healing Society Guideline project is to present clear, concise and commercial free guidelines that clinicians can use to guide care, that researchers can use to develop studies that will improve treatment and that both clinicians and researchers can use to understand the gaps in our knowledge base.
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Affiliation(s)
- Lisa J Gould
- South Shore Hospital, Weymouth, Massachusetts, USA
- Chairperson WHS Pressure Ulcer Guideline Working Group
| | - Jenny Alderden
- School of Nursing, Boise State University, Boise, Idaho, USA
| | - Rummana Aslam
- School of Medicine, Yale University, New Haven, Connecticut, USA
| | | | - Kath M Bogie
- Louis Stokes Cleveland VA Medical Center, Cleveland, Ohio, USA
- Case Western Reserve University, Cleveland, Ohio, USA
- Chairperson WHS Education Committee
| | - Mohamed El Masry
- McGowan Institute for Regenerative Medicine, Department of Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Department of Plastic Surgery, Zagazig University, Zagazig, Egypt
| | - Letitia Y Graves
- Louis Stokes Cleveland VA Medical Center, Cleveland, Ohio, USA
- School of Nursing, The University of Texas Medical Branch, Galveston, Texas, USA
| | - E Foy White-Chu
- VA Portland Health Care System, Portland, Oregon, USA
- Oregon Health and Science University, Portland, Oregon, USA
| | - Amany Ahmed
- School of Medicine, Zagazig University, Zagazig, Egypt
| | | | - Jessica Brash
- School of Nursing, The University of Texas Medical Branch, Galveston, Texas, USA
| | - Katie R Brooks
- Duke University School of Nursing, Durham, North Carolina, USA
| | - Wendy Cockron
- School of Nursing, The University of Texas Medical Branch, Galveston, Texas, USA
| | - Susan M Kennerly
- East Carolina University College of Nursing, Greenville, North Carolina, USA
| | | | - Jeni Page
- School of Nursing, The University of Texas Medical Branch, Galveston, Texas, USA
| | - Catherine Stephens
- School of Nursing, The University of Texas Medical Branch, Galveston, Texas, USA
| | - Velena West
- Michael E. DeBakey VA Medical Center, Houston, Texas, USA
| | - Tracey L Yap
- Duke University School of Nursing, Durham, North Carolina, USA
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Li Z, Ma X, Gao Q, Zhang M, Hu H. A Photocurable Polysaccharide-Based Hydrogel Delivery of Polydeoxyribonucleotide-Loaded Vectors for Wound Treatment. Molecules 2023; 28:6788. [PMID: 37836631 PMCID: PMC10574488 DOI: 10.3390/molecules28196788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 09/12/2023] [Accepted: 09/19/2023] [Indexed: 10/15/2023] Open
Abstract
The wounds caused by war, accidents, and diseases require timely and effective treatment. Polysaccharides, as natural macromolecules, have good biocompatibility and unique functions, and are excellent substrates for constructing new wound dressings. Short-chain chitosan (SCS) has good water solubility and, importantly, retains a large number of active amino groups. We first introduce double bonds to SCS. This chitosan derivative can be entangled with sodium alginate (SA) through electrostatic interaction. The flowing sol can be applied to a wound with an irregular shape. Under the initiation of a photoinitiator, the internal double bonds are broken and cross-linked to form a gel. The prepared hydrogel wound dressing exhibited good antibacterial properties and can provide a microenvironment conducive to wound repair. A polydeoxyribonucleotide (PDRN) has been proven to have encouraging therapeutic effects for wound healing. PDRN can be condensed by branched polyethylenimine (PEI) to form a nucleic acid delivery system, which can be efficiently uptaken by cells. The cooperation of hydrogel and nucleic-acid-based therapy presented good results in a mouse full-thickness skin wound model.
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Affiliation(s)
- Zonghui Li
- Department of Dermatology, The First Affiliated Hospital of Soochow University, Suzhou 215000, China;
| | - Xiaojun Ma
- The Affiliated Hospital of Qingdao University, Qingdao 266071, China;
| | - Qiang Gao
- Department of Urology, Qingdao Women’s and Children’s Hospital of Qingdao University, Qingdao 266071, China;
| | - Mingxin Zhang
- The Affiliated Hospital of Qingdao University, Qingdao 266071, China;
| | - Hao Hu
- Institute of Biomedical Materials and Engineering, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
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Serrano-Castañeda P, Ochoa Loyo MA, Tinoco Hernández CE, Anaya-Ortega BM, Guadarrama-Escobar OR, Anguiano-Almazán E, Rodríguez-Pérez B, Peña-Juárez MC, Vázquez-Durán A, Méndez-Albores A, Rodríguez-Cruz IM, Morales-Florido MI, Escobar-Chávez JJ. Ceftriaxone-Loaded Polymeric Microneedles, Dressings, and Microfibers for Wound Treatment. Polymers (Basel) 2023; 15:2610. [PMID: 37376256 DOI: 10.3390/polym15122610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 05/31/2023] [Accepted: 06/05/2023] [Indexed: 06/29/2023] Open
Abstract
The objective of this study was to create polymeric dressings, microfibers, and microneedles (MN) loaded with ceftriaxone, using PMVA (Poly (Methyl vinyl ether-alt-maleic acid), Kollicoat® 100P, and Kollicoat® Protect as polymers to treat diabetic wounds and accelerate their recovery. These formulations were optimized through a series of experiments and were subsequently subjected to physicochemical tests. The results of the characterization of the dressings, microfibers, and microneedles (PMVA and 100P) were, respectively, a bioadhesion of 281.34, 720, 720, 2487, and 510.5 gf; a post-humectation bioadhesion of 186.34, 831.5, 2380, and 630.5 gf, tear strength of 2200, 1233, 1562, and 385 gf, erythema of 358, 8.4, 227, and 188; transepidermal water loss (TEWL) of 2.6, 4.7, 1.9, and 5.2 g/h·m2; hydration of 76.1, 89.9, 73.5, and 83.5%; pH of 4.85, 5.40, 5.85, and 4.85; and drug release (Peppas kinetics release) of n: 0.53, n: 0.62, n: 0.62, and n: 0.66). In vitro studies were performed on Franz-type diffusion cells and indicated flux of 57.1, 145.4, 718.7, and 2.7 µg/cm2; permeation coefficient (Kp) of 13.2, 19.56, 42, and 0.00015 cm2/h; and time lag (tL) of 6.29, 17.61, 27. 49, and 22.3 h, respectively, in wounded skin. There was no passage of ceftriaxone from dressings and microfibers to healthy skin, but that was not the case for PMVA/100P and Kollicoat® 100P microneedles, which exhibited flux of 194 and 0.4 µg/cm2, Kp of 11.3 and 0.00002 cm2/h, and tL of 5.2 and 9.7 h, respectively. The healing time of the formulations in vivo (tests carried out using diabetic Wistar rats) was under 14 days. In summary, polymeric dressings, microfibers, and microneedles loaded with ceftriaxone were developed. These formulations have the potential to address the challenges associated with chronic wounds, such as diabetic foot, improving the outcomes.
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Affiliation(s)
- Pablo Serrano-Castañeda
- Unidad de Investigación Multidisciplinaria-Lab 12, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Carretera Cuautitlán-Teoloyucan, km 2.5 San Sebastián Xhala, Cuautitlán Izcalli 54714, Mexico
| | - Miguel Alejandro Ochoa Loyo
- Unidad de Investigación Multidisciplinaria-Lab 12, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Carretera Cuautitlán-Teoloyucan, km 2.5 San Sebastián Xhala, Cuautitlán Izcalli 54714, Mexico
| | - Cristian Ezequiel Tinoco Hernández
- Unidad de Investigación Multidisciplinaria-Lab 12, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Carretera Cuautitlán-Teoloyucan, km 2.5 San Sebastián Xhala, Cuautitlán Izcalli 54714, Mexico
| | - Brian Miguel Anaya-Ortega
- Unidad de Investigación Multidisciplinaria-Lab 12, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Carretera Cuautitlán-Teoloyucan, km 2.5 San Sebastián Xhala, Cuautitlán Izcalli 54714, Mexico
| | - Omar Rodrigo Guadarrama-Escobar
- Unidad de Investigación Multidisciplinaria-Lab 12, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Carretera Cuautitlán-Teoloyucan, km 2.5 San Sebastián Xhala, Cuautitlán Izcalli 54714, Mexico
| | - Ericka Anguiano-Almazán
- Unidad de Investigación Multidisciplinaria-Lab 12, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Carretera Cuautitlán-Teoloyucan, km 2.5 San Sebastián Xhala, Cuautitlán Izcalli 54714, Mexico
| | - Betsabé Rodríguez-Pérez
- Laboratorio de Servicio de Análisis de Propóleos (LASAP), Unidad de Investigación Multidisciplinaria (UIM), Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Cuautitlán Izcalli 54714, Mexico
| | - Ma Concepción Peña-Juárez
- Unidad de Investigación Multidisciplinaria-Lab 12, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Carretera Cuautitlán-Teoloyucan, km 2.5 San Sebastián Xhala, Cuautitlán Izcalli 54714, Mexico
| | - Alma Vázquez-Durán
- Unidad de Investigación Multidisciplinaria L14 (Ciencia y Tecnología de los Materiales), Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Cuautitlán Izcalli 54714, Mexico
| | - Abraham Méndez-Albores
- Unidad de Investigación Multidisciplinaria L14 (Ciencia y Tecnología de los Materiales), Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Cuautitlán Izcalli 54714, Mexico
| | - Isabel Marlen Rodríguez-Cruz
- Unidad de Enseñanza e Investigación, Hospital Regional de Alta Especialidad de Zumpango, Carretera Zumpango-Jilotzingo #400, Barrio de Santiago, 2ª Sección, Zumpango 55600, Mexico
| | - Miriam Isabel Morales-Florido
- Unidad de Investigación Multidisciplinaria-Lab 12, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Carretera Cuautitlán-Teoloyucan, km 2.5 San Sebastián Xhala, Cuautitlán Izcalli 54714, Mexico
| | - José Juan Escobar-Chávez
- Unidad de Investigación Multidisciplinaria-Lab 12, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Carretera Cuautitlán-Teoloyucan, km 2.5 San Sebastián Xhala, Cuautitlán Izcalli 54714, Mexico
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Luo J, Sun F, Rao P, Zhu T, Liu Y, Du J, Chen S, Jin X, Jin J, Chai Y. A poly (glycerol-sebacate-acrylate) nanosphere enhanced injectable hydrogel for wound treatment. Front Bioeng Biotechnol 2023; 10:1091122. [PMID: 36714634 PMCID: PMC9877222 DOI: 10.3389/fbioe.2022.1091122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 12/22/2022] [Indexed: 01/15/2023] Open
Abstract
Wound repair remains a huge clinical challenge, which can cause bleeding, infection, and patient death. In our current research, a bioactive, injectable, multifunctional composite hydrogel doped with nanospheres was prepared with antibacterial and angiogenesis-promoting functions for the treatment of wounds. Amino groups in ε-polylysine (ε-EPL) undergo dynamic Schiff base reaction cross-linking with oxidized hyaluronic acid (OHA), and F127 exhibits unique temperature sensitivity to form an injectable thermosensitive hydrogel (FHE10), which can form a hydrogel to cover the wound at body temperature. Nanospheres (PNs) prepared using poly (glyceryl-sebacate-acrylate) (PGSA) were loaded into hydrogels (FHE10) for promoting wound repair. The prepared FHE10 exhibited rapid gelation, good injectable abilities, and showed resistance to the flourish of Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). In vitro investigations showed that FHE10 had good hemocompatibility and cytocompatibility. FHE10@PNs exhibited good proliferation, migration, and tube formation of human umbilical vein endothelial cells (HUVECs) and human foreskin fibroblasts (HFF-1). Furthermore, FHE10@PNs significantly promoted reepithelialization and collagen deposition as well as micro-vascularization compared with the use of FHE10 or PNs alone, thereby accelerating the repair of wounds. In general, this study demonstrated that the multifunctional injectable composite hydrogel showed great potential in wound treatment.
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Affiliation(s)
- Jiajia Luo
- School of Chemistry and Chemical Engineering, Institute for Frontier Medical Technology, Shanghai Engineering Research Center of Pharmaceutical Intelligent Equipment, Shanghai Frontiers Science Research Center for Druggability of Cardiovascular Non-coding RNA, Shanghai University of Engineering Science, Shanghai, China
| | - Fenglei Sun
- Department of Neurosurgery, Weifang People’s Hospital, Weifang, Shandong, China
| | - Pinhua Rao
- School of Chemistry and Chemical Engineering, Institute for Frontier Medical Technology, Shanghai Engineering Research Center of Pharmaceutical Intelligent Equipment, Shanghai Frontiers Science Research Center for Druggability of Cardiovascular Non-coding RNA, Shanghai University of Engineering Science, Shanghai, China,*Correspondence: Pinhua Rao, ; Jiale Jin, ; Yi Chai,
| | - Tonghe Zhu
- School of Chemistry and Chemical Engineering, Institute for Frontier Medical Technology, Shanghai Engineering Research Center of Pharmaceutical Intelligent Equipment, Shanghai Frontiers Science Research Center for Druggability of Cardiovascular Non-coding RNA, Shanghai University of Engineering Science, Shanghai, China
| | - Yonghang Liu
- School of Chemistry and Chemical Engineering, Institute for Frontier Medical Technology, Shanghai Engineering Research Center of Pharmaceutical Intelligent Equipment, Shanghai Frontiers Science Research Center for Druggability of Cardiovascular Non-coding RNA, Shanghai University of Engineering Science, Shanghai, China
| | - Juan Du
- School of Chemistry and Chemical Engineering, Institute for Frontier Medical Technology, Shanghai Engineering Research Center of Pharmaceutical Intelligent Equipment, Shanghai Frontiers Science Research Center for Druggability of Cardiovascular Non-coding RNA, Shanghai University of Engineering Science, Shanghai, China
| | - Sihao Chen
- School of Chemistry and Chemical Engineering, Institute for Frontier Medical Technology, Shanghai Engineering Research Center of Pharmaceutical Intelligent Equipment, Shanghai Frontiers Science Research Center for Druggability of Cardiovascular Non-coding RNA, Shanghai University of Engineering Science, Shanghai, China
| | - Xiangyun Jin
- Department of Orthopaedics, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jiale Jin
- Spine Lab, Department of Orthopaedic Surgery, The First Affiliated Hospital, Zhejiang University, Hangzhou, China,*Correspondence: Pinhua Rao, ; Jiale Jin, ; Yi Chai,
| | - Yi Chai
- Department of Neurosurgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China,*Correspondence: Pinhua Rao, ; Jiale Jin, ; Yi Chai,
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8
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Huang HN, Zhang T, Yang CT, Sheen YJ, Chen HM, Chen CJ, Tseng MW. Image segmentation using transfer learning and Fast R-CNN for diabetic foot wound treatments. Front Public Health 2022; 10:969846. [PMID: 36203688 PMCID: PMC9530356 DOI: 10.3389/fpubh.2022.969846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Accepted: 08/15/2022] [Indexed: 01/25/2023] Open
Abstract
Diabetic foot ulcers (DFUs) are considered the most challenging forms of chronic ulcerations to handle their multifactorial nature. It is necessary to establish a comprehensive treatment plan, accurate, and systematic evaluation of a patient with a DFU. This paper proposed an image recognition of diabetic foot wounds to support the effective execution of the treatment plan. In the severity of a diabetic foot ulcer, we refer to the current qualitative evaluation method commonly used in clinical practice, developed by the International Working Group on the Diabetic Foot: PEDIS index, and the evaluation made by physicians. The deep neural network, convolutional neural network, object recognition, and other technologies are applied to analyze the classification, location, and size of wounds by image analysis technology. The image features are labeled with the help of the physician. The Object Detection Fast R-CNN method is applied to these wound images to build and train machine learning modules and evaluate their effectiveness. In the assessment accuracy, it can be indicated that the wound image detection data can be as high as 90%.
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Affiliation(s)
- Huang-Nan Huang
- Department of Applied Mathematics, Tunghai University, Taichung, Taiwan
| | - Tianyi Zhang
- Department of Computer Science, Tunghai University, Taichung, Taiwan
| | - Chao-Tung Yang
- Department of Computer Science, Tunghai University, Taichung, Taiwan,Research Center for Smart Sustainable Circular Economy, Tunghai University, Taichung, Taiwan,*Correspondence: Chao-Tung Yang
| | - Yi-Jing Sheen
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan,Yi-Jing Sheen
| | - Hsian-Min Chen
- Department of Medical Research, Center for Quantitative Imaging in Medicine (CQUIM), Taichung Veterans General Hospital, Taichung, Taiwan,Hsian-Min Chen
| | - Chur-Jen Chen
- Department of Applied Mathematics, Tunghai University, Taichung, Taiwan
| | - Meng-Wen Tseng
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
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9
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Seidel D, Lefering R. NPWT Resource Use Compared With Conventional Wound Treatment in Subcutaneous Abdominal Wounds With Healing Impairment After Surgery: SAWHI Randomized Clinical Trial Results. Ann Surg 2022; 275:e290-e298. [PMID: 34117147 PMCID: PMC8746894 DOI: 10.1097/sla.0000000000004960] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To compare resource utilization of NPWT and CWT for SAWHI after surgery. SUMMARY OF BACKGROUND DATA NPWT is widely used in the management of complex wounds but high-level evidence of its resource use remains sparse. METHODS The multicenter, multinational, randomized clinical SAWHI study enrolled a total of 539 consecutive, compliant adult patients with SAWHI after surgery without fascial dehiscence between August 2, 2011, and January 31, 2018. Patients were randomly assigned to NPWT and CWT stratified by study site and wound size using a centralized web-based tool. Evaluation of direct resource use comprised inpatient and outpatient time, personnel and material for wound treatment, and associated wound-related procedures. The resource use analysis was primarily based on the per protocol population (NPWT 157; CWT 174). RESULTS Although treatment length within 42 days was significantly shorter in the NPWT arm {Mean [Standard deviation (SD)] NPWT 22.8 (13.4); CWT 30.6 (13.3); P < 0.001 U-test}, hospitalization time was shorter with CWT [Mean (SD) NPWT 13.9 (11.1); CWT 11.8 (10.8); P = 0.047 U-test]. Significantly more study participants were outpatient with CWT [N=167 (96.0%)] than with NPWT [N = 140 (89.2%) (P = 0.017)]. Time for dressing changes per study participant [Mean (SD) (min) NPWT N = 133, 196 (221.1); CWT N = 152, 278 (208.2); P < .001 U-test] and for wound-related procedures [Mean (SD) (min) NPWT 167 (195); CWT 266 (313); P < 0.001 U-test] was significantly lower with NPWT. CONCLUSIONS NPWT reduces resource use and maybe an efficient treatment alternative to CWT for SAWHI after surgery.
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Affiliation(s)
- Dörthe Seidel
- Institut für Forschung in der Operativen Medizin (IFOM), Witten/Herdecke University, Cologne, Germany
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10
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Tettelbach WH, Armstrong DG, Chang TJ, Jong JLD, Glat PM, Hsu JH, Kelso MR, Niezgoda JA, Labovitz JM, Hubbs B, Forsyth RA, Cohen BG, Reid NM, Padula WV. Cost-effectiveness of dehydrated human amnion/chorion membrane allografts in lower extremity diabetic ulcer treatment. J Wound Care 2022; 31:S10-S31. [PMID: 35148642 DOI: 10.12968/jowc.2022.31.sup2.s10] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
OBJECTIVE To evaluate the cost-effectiveness and budget impact of using standard care (no advanced treatment, NAT) compared with an advanced treatment (AT), dehydrated human amnion/chorion membrane (DHACM), when following parameters for use (FPFU) in treating lower extremity diabetic ulcers (LEDUs). METHOD We analysed a retrospective cohort of Medicare patients (2015-2019) to generate four propensity-matched cohorts of LEDU episodes. Outcomes for DHACM and NAT, such as amputations, and healthcare utilisation were tracked from claims codes, analysed and used to build a hybrid economic model, combining a one-year decision tree and a four-year Markov model. The budget impact was evaluated in the difference in per member per month spending following completion of the decision tree. Likewise, the cost-effectiveness was analysed before and after the Markov model at a willingness to pay (WTP) threshold of $100,000 per quality adjusted life year (QALY). The analysis was conducted from the healthcare sector perspective. RESULTS There were 10,900,127 patients with a diagnosis of diabetes, of whom 1,213,614 had an LEDU. Propensity-matched Group 1 was generated from the 19,910 episodes that received AT. Only 9.2% of episodes were FPFU and DHACM was identified as the most widely used AT product among Medicare episodes. Propensity-matched Group 4 was limited by the 590 episodes that used DHACM FPFU. Episodes treated with DHACM FPFU had statistically fewer amputations and healthcare utilisation. In year one, DHACM FPFU provided an additional 0.013 QALYs, while saving $3,670 per patient. At a WTP of $100,000 per QALY, the five-year net monetary benefit was $5003. CONCLUSION The findings of this study showed that DHACM FPFU reduced costs and improved clinical benefits compared with NAT for LEDU Medicare patients. DHACM FPFU provided better clinical outcomes than NAT by reducing major amputations, ED visits, inpatient admissions and readmissions. These clinical gains were achieved at a lower cost, in years 1-5, and were likely to be cost-effective at any WTP threshold. Adoption of best practices identified in this retrospective analysis is expected to generate clinically significant decreases in amputations and hospital utilisation while saving money.
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Affiliation(s)
- William H Tettelbach
- MIMEDX Group, Inc., US.,College of Podiatric Medicine, Western University of Health Sciences, US.,Duke University School of Medicine, Department of Anesthesiology, US.,Association for the Advancement of Wound Care.,Western Peaks Specialty Hospital, US.,Encompass Health & Rehabilitation Hospital of Utah, US
| | - David G Armstrong
- Southwestern Academic Limb Salvage Alliance (SALSA).,Keck School of Medicine, University of Southern California, Department of Surgery, US
| | | | | | | | | | | | | | | | | | - R Allyn Forsyth
- MIMEDX Group, Inc., US.,Department of Biology, San Diego State University, San Diego, California, US
| | | | | | - William V Padula
- Monument Analytics, Baltimore, MD, US.,Department of Pharmaceutical & Health Economics, School of Pharmacy, University of Southern California, Los Angeles, CA, US.,The Leonard D. Schaeffer Center for Health Policy & Economics, University of Southern California, Los Angeles, CA, US.,Department of Acute & Chronic Care, Johns Hopkins School of Nursing, Baltimore, MD, US
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11
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Grigoryan AY, Bezhin AI, Pankrusheva TA, Sukovatykh BS. [Local management of purulent wounds with wound dressings]. Khirurgiia (Mosk) 2022:42-48. [PMID: 36398954 DOI: 10.17116/hirurgia202211142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Purulent-inflammatory lesions of skin and soft tissues account for 30-35% of causes of admission to surgical hospitals. In outpatient system, this value reaches 35-60%. Moreover, suppuration of wounds after elective surgery occurs in 2-5% of cases. Adequately selected drugs for local wound therapy can achieve localization of purulent process and avoid spread of infection. This review summarizes data on development, experimental and clinical testing of wound dressings over the past 10 years, presents classification options and analyzes their advantages and disadvantages. The authors emphasize higher efficacy of hydrophilic coatings, and coatings based on chitosan, collagen, methylcellulose and its derivatives are preferred. It is advisable to introduce a component with antimicrobial, anesthetic and hemostatic activity stimulating tissue regeneration into the matrix of wound dressing. The priority is introduction of antiseptic substances causing fewer side effects compared to antibiotics. Further research and development of new wound dressings is a priority in surgery considering changing landscape and development of resistance of microorganisms.
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Affiliation(s)
| | - A I Bezhin
- Kursk State Medical University, Kursk, Russia
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12
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Willmore J, Wrotslavsky P. Preoperative contaminated wound management using short-term negative pressure wound therapy with instillation. J Wound Care 2021; 30:994-1000. [PMID: 34882001 DOI: 10.12968/jowc.2021.30.12.994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND The short-term application of negative pressure wound therapy with instillation and dwell time (NPWTi-d) enables the delivery of topical wound solutions, the solubilisation of debris and cleansing of the wound bed. The application of NPWTi-d may support the transition of the wound to a more manageable state and minimises the use of more invasive techniques. METHOD In this case series, we describe the process of applying NPWTi-d early as part of a contaminated wound treatment plan. RESULTS The case series included 15 patients in the preoperative setting. Wound types included surgical dehiscence, hard-to-heal wounds, heel pressure ulcers, diabetic foot ulcers, a cat bite and an amputation left open. Normal saline or a 0.125% sodium hypochlorite solution were instilled and allowed to dwell for five minutes, followed by 15 minutes of continuous negative pressure at -125mmHg. NPWTi-d was continued for 4-36 hours, or until the operating room became available. After NPWTi-d, we observed a decreased amount of devitalised tissue in the wound bed and reduced oedema and erythema in the periwound area. Patient white blood cells also significantly decreased in all cases after NPWTi-d (p<0.001). CONCLUSION Short-term use of NPWTi-d may be a useful option for supporting the surgical treatment of contaminated lower extremity wounds.
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Affiliation(s)
- James Willmore
- Advanced Foot and Ankle Center of San Diego, San Diego, CA, US
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13
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Reilly A, Sorensen J, Strapp H, Patton D, Blair A, Avsar P, Burns J, Moore Z. Costing pressure ulcer care in an Irish acute care setting: a feasibility study. J Wound Care 2021; 30:940-944. [PMID: 34747209 DOI: 10.12968/jowc.2021.30.11.940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE To test the feasibility of using a standardised data collection tool to estimate the cost of stage 2-4 pressure ulcer (PU) care within an acute care setting. METHOD Data on resource use and cost were obtained through a retrospective survey of nursing and medical notes collecting cost data for individual patients who received care for stage 2-4 PUs. RESULTS Data for 20 patients (12 male/8 female) were analysed. The average patient age was 69 years (range: 37-95 years). Of this sample, seven patients had hospital-acquired PUs (HAPUs) and 14 patients had community-acquired PUs (CAPU) (one patient had both-in different anatomical areas). Over half of the total sample (55%; n=11) had a stage 2 PU. The average length of stay was 31.8 days (range: 5-119 days). Most of the patients (70%; n=14) had a CAPU. The average cost per patient with PU care was €878 (range: €39-2393). The mean cost for patients with a HAPU was €866 (SD: €1313) versus €911 (SD: €567) for patients with a CAPU. The majority of the cost related to equipment and staff time for treatment. CONCLUSION Overall, the application of the standardised data collection tool to obtain cost data from retrospective inspection of nursing and medical notes is feasible. The cost of PU care in this sample was high, indicating that these wounds may impose a substantial burden on health systems. The costs varied greatly between patients in the sample, reflecting the complexity of PU care. Furthermore, given that costs increased with the higher PU stages, there is a potential to reduce costs by preventing the development of higher stage PUs. Larger-scale studies are required to understand the cost variation and full economic impact of PU care. DECLARATION OF INTEREST The authors have no conflicts of interest.
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Affiliation(s)
| | - Jan Sorensen
- Healthcare Outcomes Research Centre, Royal College of Surgeons in Ireland
| | | | - Declan Patton
- School of Nursing and Midwifery, Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin.,Adjunct Associate Professor, Fakeeh College of Health Sciences, Jeddah, Saudi Arabia.,Honorary Senior Fellow, Faculty of Science, Medicine and Health, University of Wollongong, Australia.,Adjunct Professor, Griffith University, Australia
| | - Amy Blair
- Royal College of Surgeons in Ireland
| | - Pinar Avsar
- School of Nursing and Midwifery, Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin
| | - Jane Burns
- Athlone Institute of Technology, Ireland
| | - Zena Moore
- School of Nursing and Midwifery, Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin.,Adjunct Professor, Fakeeh College of Health Sciences, Jeddah, Saudi Arabia.,Adjunct Professor, Faculty of Medicine, Nursing and Health Sciences, Monash University, Australia.,Professor, Department of Public Health, Faculty of Medicine and Health Sciences, Ghent University, Belgium.,Honorary Professor, Lida Institute, Shanghai, China.,Visiting Professor, University of Wales, Cardiff, UK.,Adjunct Professor, Griffith University, Australia
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14
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Scotti F, Mou L, Huang C, Booker A, Weckerle C, Maake C, Heinrich M. Treating Chronic Wounds Using Photoactive Metabolites: Data Mining the Chinese Pharmacopoeia for Potential Lead Species. Planta Med 2021; 87:1206-1218. [PMID: 34528222 PMCID: PMC8585569 DOI: 10.1055/a-1578-8778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Accepted: 08/02/2021] [Indexed: 06/13/2023]
Abstract
Efficient wound treatment that addresses associated infections and inflammation remains one of the big unmet needs, especially in low- and middle-income countries. One strategy for securing better healthcare can be using medicinal plants if sufficient evidence on their safety and therapeutic benefits can be ascertained. A unique novel opportunity could be photo-enhanced wound treatment with a combination of light-sensitive plant preparations and local exposure to daylight. Data mining strategies using existing resources offer an excellent basis for developing such an approach with many potential plant candidates. In the present analysis, we researched the 535 botanical drugs included in the Chinese pharmacopeia and identified 183 medicinal plant species, 82 for treating open wounds caused by trauma and 101 for inflammatory skin conditions. After further screening for reports on the presence of known photoactive compounds, we determined a core group of 10 scientifically lesser-known botanical species that may potentially be developed into more widely used topical preparations for photodynamic treatment of infected wounds. Our predictive approach may contribute to developing a more evidence-based use of herbal medicines.
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Affiliation(s)
- Francesca Scotti
- Research Group “Pharmacognosy and Phytotherapy”, UCL School of Pharmacy, London, UK
| | - Linru Mou
- Research Group “Pharmacognosy and Phytotherapy”, UCL School of Pharmacy, London, UK
| | - Chen Huang
- Research Group “Pharmacognosy and Phytotherapy”, UCL School of Pharmacy, London, UK
| | - Anthony Booker
- Research Group “Pharmacognosy and Phytotherapy”, UCL School of Pharmacy, London, UK
- Research Centre for Optimal Health, School of Life Sciences, College of Liberal Arts and Sciences, University of Westminster. London, UK
| | - Caroline Weckerle
- Institute of Systematic and Evolutionary Botany, University of Zürich, Zürich, Switzerland
| | - Caroline Maake
- Institute of Anatomy, University of Zürich, Zürich, Switzerland
| | - Michael Heinrich
- Research Group “Pharmacognosy and Phytotherapy”, UCL School of Pharmacy, London, UK
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15
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Aleksandrowicz H, Owczarczyk-Saczonek A, Placek W. Venous Leg Ulcers: Advanced Therapies and New Technologies. Biomedicines 2021; 9:1569. [PMID: 34829797 PMCID: PMC8615583 DOI: 10.3390/biomedicines9111569] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/08/2021] [Accepted: 10/23/2021] [Indexed: 12/19/2022] Open
Abstract
The prevalence of venous leg ulcers (VLUs) differs between 1.5% and 3% in the general population. The challenge in treating VLUs is common recurrence. Moreover, VLUs can be resistant to healing, despite appropriate treatment. In these cases, advanced wound therapies should be considered. The number of new technologies, applied in VLUs treatment, has increased in the last years. These therapies include biophysical interventions such as ultrasound therapy, electrical stimulations, electromagnetic therapy, or phototherapy. Furthermore, stem cell therapies, biologic skin equivalents, platelet-rich plasma therapy, oxygen therapies, anti-TNF therapy, or negative pressure wound therapy are advanced venous ulcer therapeutic methods that may support the standard of care. Medical devices, such as a muscle pump activator, or intermittent pneumatic compression device, may be especially useful for specific subgroups of patients suffering from VLUs. Some of the above-mentioned technologies require broader evidence of clinical efficacy and are still considered experimental therapies in dermatology.
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Affiliation(s)
- Hubert Aleksandrowicz
- Department and Clinic of Dermatology, Sexually Transmitted Diseases and Clinical Immunology, University of Warmia and Mazury, Al. Wojska Polskiego 30, 10-959 Olsztyn, Poland; (A.O.-S.); (W.P.)
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16
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Moog P, Jensch M, Betzl J, Bauer AT, Cerny MK, Schmauss D, Kükrek H, Erne H, Machens HG, Megerle K. Bacterial bioburden of wounds: influence of debridement and negative-pressure wound therapy (NPWT). J Wound Care 2021; 30:604-611. [PMID: 34382852 DOI: 10.12968/jowc.2021.30.8.604] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE To clarify the role of microbiological swabs in surgical decision-making, we investigated the effect of negative-pressure wound therapy (NPWT) and serial surgical debridement on bacterial bioburden in hard-to-heal wounds and ultimately correlated them with the success of surgical closure. METHOD All patients were treated with surgical debridement, jet lavage and NPWT before their wounds were finally closed. The treatment effect was assessed by correlating microbiological swabs obtained immediately after intervention with those obtained after removal of the dressings during the following surgical procedures. The result of the last microbiological swab taken before definitive surgical closure was correlated with the requirement for revision surgery. RESULTS We included the results of 704 microbiological swabs from 97 patients in 110 wound localisations in this monocentric, retrospective study. NPWT did not improve bacterial bioburden in 77% of cases and the duration of NPWT did not affect the result. Furthermore, no significant effect of NPWT could be found for either anaerobic (p=0.96) or aerobic bacteria (p=0.43). In contrast, surgical debridement decreased bacterial load in approximately 60% of cases. If sterile wound swabs could be obtained at all, it was during the first four surgical debridements in 60% of patients; after that only 10% became sterile. CONCLUSIONS Sterile microbiological wound swabs before surgical closure were associated with lower rates of revision surgery, while low or medium bacterial loads did not increase revision rates.
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Affiliation(s)
- Philipp Moog
- Department for Plastic Surgery and Hand Surgery, Klinikum Rechts der Isar, Technische Universität München, D-81675, Munich, Germany
| | - Maryna Jensch
- Department for Plastic Surgery and Hand Surgery, Klinikum Rechts der Isar, Technische Universität München, D-81675, Munich, Germany
| | - Julia Betzl
- Department for Plastic Surgery and Hand Surgery, Klinikum Rechts der Isar, Technische Universität München, D-81675, Munich, Germany
| | - Anna-Theresa Bauer
- Department for Plastic Surgery and Hand Surgery, Klinikum Rechts der Isar, Technische Universität München, D-81675, Munich, Germany
| | - Michael K Cerny
- Department for Plastic Surgery and Hand Surgery, Klinikum Rechts der Isar, Technische Universität München, D-81675, Munich, Germany
| | - Daniel Schmauss
- Department for Plastic, Reconstructive and Aesthetic Surgery, Ospedale Regionale di Lugano, Lugano, Switzerland
| | - Haydar Kükrek
- Department for Plastic Surgery and Hand Surgery, Klinikum Rechts der Isar, Technische Universität München, D-81675, Munich, Germany
| | - Holger Erne
- Department for Plastic Surgery and Hand Surgery, Klinikum Rechts der Isar, Technische Universität München, D-81675, Munich, Germany
| | - Hans-Günther Machens
- Department for Plastic Surgery and Hand Surgery, Klinikum Rechts der Isar, Technische Universität München, D-81675, Munich, Germany
| | - Kai Megerle
- Department for Plastic Surgery and Hand Surgery, Klinikum Rechts der Isar, Technische Universität München, D-81675, Munich, Germany
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17
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Hobart-Porter N, Stein M, Toh N, Amega N, Nguyen HB, Linakis J. Safety and efficacy of rabies immunoglobulin in pediatric patients with suspected exposure. Hum Vaccin Immunother 2021; 17:2090-2096. [PMID: 33563087 PMCID: PMC8189119 DOI: 10.1080/21645515.2020.1854000] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
Rabies is a deadly viral zoonosis with global disease burden. Following exposure to a rabid animal, post-exposure prophylaxis (PEP) is the standard of care for unvaccinated persons. Despite the large proportion of pediatric cases, limited safety and efficacy data exist for use in pediatric patients. We report the safety, efficacy, and immunogenicity of a phase 4, prospective, 2-center, open-label, single-arm clinical trial evaluating human rabies immunoglobulin (HRIG150; KEDRAB 150 IU/mL) as part of PEP in patients (aged <17) with suspected or confirmed rabies exposure, where PEP was indicated. Thirty participants received 20 IU/kg HRIG150 infiltrated into the detectable wound site(s), with any remainder injected intramuscularly, concomitantly with the first of a 4-dose series (days 0, 3, 7, and 14) of rabies vaccine. Rabies virus neutralizing antibody (RVNA) titers and tolerability were assessed on day 14 following administration. Participant safety was monitored for 84 days. No serious adverse events, rabies infections, or deaths were recorded. Twenty-one participants (70.0%) experienced a total of 57 treatment-emergent adverse events (TEAEs) within 14 days following administration. Twelve participants (40.0%) experienced a total of 13 adverse events deemed treatment related. All TEAEs were mild in severity. On day 14, 28 participants (93.3%) had RVNA levels of ≥0.5 IU/mL (mean±standard deviation: 18.89 ± 31.61). These results demonstrate that HRIG150 is well tolerated and effective in pediatric patients as a component of PEP. To the authors' knowledge, this study is the first to establish pediatric safety and efficacy of HRIG in the US.
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Affiliation(s)
- Nicholas Hobart-Porter
- Department of Pediatrics, Division of Pediatric Emergency Medicine, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Michal Stein
- Department of Medical Affairs, Kamada Ltd., Beit Kama, Israel
| | - Naveh Toh
- Department of Medical Affairs, Kamada Ltd., Beit Kama, Israel
| | - Novinyo Amega
- Department of Medical Affairs, Kedrion Biopharma Inc., Fort Lee, NJ, USA
| | - Huy-Binh Nguyen
- Department of Medical Affairs, Kedrion Biopharma Inc., Fort Lee, NJ, USA
| | - James Linakis
- Departments of Emergency Medicine and Pediatrics, The Warren Alpert Medical School of Brown University, Rhode Island Hospital, Providence, RI, USA
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18
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Armstrong DG, Tettelbach WH, Chang TJ, De Jong JL, Glat PM, Hsu JH, Kelso MR, Niezgoda JA, Tucker TL, Labovitz JM. Observed impact of skin substitutes in lower extremity diabetic ulcers: lessons from the Medicare Database (2015-2018). J Wound Care 2021; 30:S5-S16. [PMID: 34256590 DOI: 10.12968/jowc.2021.30.sup7.s5] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
OBJECTIVE To evaluate large propensity-matched cohorts to assess outcomes in patients receiving advanced treatment (AT) with skin substitutes for lower extremity diabetic ulcers (LEDUs) versus no AT (NAT) for the management of LEDUs. METHOD The Medicare Limited Dataset (1 October 2015 through 2 October 2018) were used to retrospectively analyse people receiving care for a LEDU treated with AT or NAT (propensity-matched Group 1). Analysis included major and minor amputations, emergency department (ED) visits and hospital readmissions. In addition, AT following parameters for use (FPFU) was compared with AT not FPFU (propensity-matched Group 2). A paired t-test was used for comparisons of the two groups. For comparisons of three groups, the Kruskal-Wallis test was used. A Bonferroni correction was performed when multiple comparisons were calculated. RESULTS There were 9,738,760 patients with a diagnosis of diabetes, of whom 909,813 had a LEDU. In propensity-matched Group 1 (12,676 episodes per cohort), AT patients had statistically fewer minor amputations (p=0.0367), major amputations (p<0.0001), ED visits (p<0.0001), and readmissions (p<0.0001) compared with NAT patients. In propensity-matched Group 2 (1131 episodes per cohort), AT FPFU patients had fewer minor amputations (p=0.002) than those in the AT not FPFU group. CONCLUSION AT for the management of LEDUs was associated with significant reductions in major and minor amputation, ED use, and hospital readmission compared with LEDUs managed with NAT. Clinics should implement AT in accordance with the highlighted parameters for use to improve outcomes and reduce costs.
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Affiliation(s)
- David G Armstrong
- Southwestern Academic Limb Salvage Alliance (SALSA), US
- Keck School of Medicine, University of Southern California, Department of Surgery, US
| | - William H Tettelbach
- MIMEDX Group, Inc., US
- College of Podiatric Medicine, Western University of Health Sciences, US
- Duke University School of Medicine, Department of Anesthesiology, US
- Association for the Advancement of Wound Care, US
- Western Peaks Specialty Hospital, US
- Encompass Health and Rehabilitation Hospital of Utah, US
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19
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Alven S, Buyana B, Feketshane Z, Aderibigbe BA. Electrospun Nanofibers/Nanofibrous Scaffolds Loaded with Silver Nanoparticles as Effective Antibacterial Wound Dressing Materials. Pharmaceutics 2021; 13:964. [PMID: 34206857 DOI: 10.3390/pharmaceutics13070964] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/09/2021] [Accepted: 04/16/2021] [Indexed: 01/21/2023] Open
Abstract
The treatment of wounds is expensive and challenging. Most of the available wound dressings are not effective and suffer from limitations such as poor antimicrobial activity, toxicity, inability to provide suitable moisture to the wound and poor mechanical performance. The use of inappropriate wound dressings can result in a delayed wound healing process. Nanosize range scaffolds have triggered great attention because of their attractive properties, which include their capability to deliver bioactive agents, high surface area, improved mechanical properties, mimic the extracellular matrix (ECM), and high porosity. Nanofibrous materials can be further encapsulated/loaded with metal-based nanoparticles to enhance their therapeutic outcomes in wound healing applications. The widely studied metal-based nanoparticles, silver nanoparticles exhibit good properties such as outstanding antibacterial activity, display antioxidant, and anti-inflammatory properties, support cell growth, making it an essential bioactive agent in wound dressings. This review article reports the biological (in vivo and in vitro) and mechanical outcomes of nanofibrous scaffolds loaded with silver nanoparticles on wound healing.
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20
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Alven S, Khwaza V, Oyedeji OO, Aderibigbe BA. Polymer-Based Scaffolds Loaded with Aloe vera Extract for the Treatment of Wounds. Pharmaceutics 2021; 13:961. [PMID: 34206744 PMCID: PMC8309095 DOI: 10.3390/pharmaceutics13070961] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/15/2021] [Accepted: 04/15/2021] [Indexed: 12/16/2022] Open
Abstract
The treatment of wounds is one challenging biomedical field due to delayed wound healing common in chronic wounds. Several factors delay wound healing, including microbial infections, malnutrition, underlying physiological conditions, etc. Most of the currently used wound dressing materials suffer from poor antimicrobial properties, poor biodegradability and biocompatibility, and weak mechanical performance. Plant extracts, such as Aloe vera, have attracted significant attention in wound management because of their interesting biological properties. Aloe vera is composed of essential constituents beneficial for the wound healing process, such as amino acids, vitamins C and E, and zinc. Aloe vera influences numerous factors that are involved in wound healing and stimulates accelerated healing. This review reports the therapeutic outcomes of aloe vera extract-loaded polymer-based scaffolds in wound management.
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Affiliation(s)
| | | | | | - Blessing A. Aderibigbe
- Department of Chemistry, University of Fort Hare, Alice 5700, Eastern Cape, South Africa; (S.A.); (V.K.); (O.O.O.)
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21
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Kupke LS, Arndt S, Lenzer S, Metz S, Unger P, Zimmermann JL, Bosserhoff AK, Gruber M, Karrer S. Cold Atmospheric Plasma Promotes the Immunoreactivity of Granulocytes In Vitro. Biomolecules 2021; 11:902. [PMID: 34204360 PMCID: PMC8235417 DOI: 10.3390/biom11060902] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 06/01/2021] [Accepted: 06/15/2021] [Indexed: 12/22/2022] Open
Abstract
Cold atmospheric plasma (CAP) reduces bacteria and interacts with tissues and cells, thus improving wound healing. The CAP-related induction of neutrophils was recently described in stained sections of wound tissue in mice. Consequently, this study aimed to examine the functionality of human polymorphonuclear cells (PMN)/granulocytes through either a plasma-treated solution (PTS) or the direct CAP treatment with different plasma modes and treatment durations. PTS analysis yielded mode-dependent differences in the production of reactive oxygen species (ROS) and reactive nitrogen species (RNS) after CAP treatment. Live-cell imaging did not show any chemo-attractive or NETosis-inducing effect on PMNs treated with PTS. The time to maximum ROS production (TmaxROS) in PMNs was reduced by PTS and direct CAP treatment. PMNs directly treated with CAP showed an altered cell migration dependent on the treatment duration as well as decreased TmaxROS without inducing apoptosis. Additionally, flow cytometry showed enhanced integrin and selectin expression, as a marker of activation, on PMN surfaces. In conclusion, the modification of PMN immunoreactivity may be a main supporting mechanism for CAP-induced improvement in wound healing.
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Affiliation(s)
- Laura S. Kupke
- Department of Anesthesiology, University Hospital Regensburg, 93053 Regensburg, Germany; (L.S.K.); (S.L.); (S.M.); (M.G.)
- Department of Dermatology, University Hospital Regensburg, 93053 Regensburg, Germany; (P.U.); (S.K.)
| | - Stephanie Arndt
- Department of Dermatology, University Hospital Regensburg, 93053 Regensburg, Germany; (P.U.); (S.K.)
| | - Simon Lenzer
- Department of Anesthesiology, University Hospital Regensburg, 93053 Regensburg, Germany; (L.S.K.); (S.L.); (S.M.); (M.G.)
- Department of Dermatology, University Hospital Regensburg, 93053 Regensburg, Germany; (P.U.); (S.K.)
| | - Sophia Metz
- Department of Anesthesiology, University Hospital Regensburg, 93053 Regensburg, Germany; (L.S.K.); (S.L.); (S.M.); (M.G.)
| | - Petra Unger
- Department of Dermatology, University Hospital Regensburg, 93053 Regensburg, Germany; (P.U.); (S.K.)
| | | | - Anja-Katrin Bosserhoff
- Emil-Fischer-Center, Institute of Biochemistry, University of Erlangen-Nuernberg (FAU), 91054 Erlangen, Germany;
| | - Michael Gruber
- Department of Anesthesiology, University Hospital Regensburg, 93053 Regensburg, Germany; (L.S.K.); (S.L.); (S.M.); (M.G.)
| | - Sigrid Karrer
- Department of Dermatology, University Hospital Regensburg, 93053 Regensburg, Germany; (P.U.); (S.K.)
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22
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Wang J, Li MM, Zhou LP, Xie RH, Pakhale S, Krewski D, Wen SW. Treatment for grade 4 peripheral intravenous infiltration with type 3 skin tears: A case report and literature review. Int Wound J 2021; 19:222-229. [PMID: 34129273 PMCID: PMC8684851 DOI: 10.1111/iwj.13624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 05/08/2021] [Accepted: 05/12/2021] [Indexed: 11/26/2022] Open
Abstract
Grade 4 peripheral intravenous infiltration with skin tears has seldom been reported. On 4 August 2020, a 35‐year‐old female patient was admitted to the emergency department of our hospital because of postprandial abdominal pain for 2 hours. She was diagnosed with a severe acute pancreatitis with type II diabetes mellitus. On 7 August, a vein detained needle was inserted into the dorsal vein of her right foot to infuse drugs. On 9 August, a grade 4 infiltration, discoloured and bruised skin with a swollen area of 11 cm × 9 cm around the infusion part of her right foot, was discovered. The infusion was stopped immediately and the residual drug was aspirated at the infusion site. When removing the vein detained needle, the skin surrounding the infusion site on the right foot was torn by the adhesive dressing. The size of the skin tears was 6 cm × 3 cm (type 3). The patient was provided with appropriate dressing, manual lymphatic drainage, and surgical intervention. Two months later, she was fully recovered with no functional impairment of the affected foot. Timely local wound interventions could lead to a satisfactory outcome for severe peripheral intravenous infiltration with skin tears.
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Affiliation(s)
- Jie Wang
- Department of Nursing, The Seventh Affiliated Hospital of Southern Medical University, Foshan, Guangdong, China
| | - Man-Man Li
- Digestive Medical Center, The Seventh Affiliated Hospital of Southern Medical University, Foshan, Guangdong, China
| | - Le-Peng Zhou
- Department of Nursing, The Seventh Affiliated Hospital of Southern Medical University, Foshan, Guangdong, China
| | - Ri-Hua Xie
- Department of Nursing, The Seventh Affiliated Hospital of Southern Medical University, Foshan, Guangdong, China
| | - Smita Pakhale
- Division of Respirology, Department of Medicine, The Ottawa Hospital, Ottawa, Ontario, Canada.,Ottawa Hospital Research Institute Clinical Epidemiology Program, Ottawa, Ontario, Canada.,School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Daniel Krewski
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada.,McLaughlin Centre for Population Health Risk Assessment, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada.,Risk Science International, Ottawa, Ontario, Canada
| | - Shi Wu Wen
- Ottawa Hospital Research Institute Clinical Epidemiology Program, Ottawa, Ontario, Canada.,School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada.,Department of Obstetrics & Gynecology, University of Ottawa Faculty of Medicine, Ottawa, Ontario, Canada
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23
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Trucillo P, Di Maio E. Classification and Production of Polymeric Foams among the Systems for Wound Treatment. Polymers (Basel) 2021; 13:1608. [PMID: 34065750 PMCID: PMC8155881 DOI: 10.3390/polym13101608] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/28/2021] [Accepted: 05/14/2021] [Indexed: 12/19/2022] Open
Abstract
This work represents an overview on types of wounds according to their definition, classification and dressing treatments. Natural and synthetic polymeric wound dressings types have been analyzed, providing a historical overview, from ancient to modern times. Currently, there is a wide choice of materials for the treatment of wounds, such as hydrocolloids, polyurethane and alginate patches, wafers, hydrogels and semi-permeable film dressings. These systems are often loaded with drugs such as antibiotics for the simultaneous delivery of drugs to prevent or cure infections caused by the exposition of blood vessel to open air. Among the presented techniques, a focus on foams has been provided, describing the most diffused branded products and their chemical, physical, biological and mechanical properties. Conventional and high-pressure methods for the production of foams for wound dressing are also analyzed in this work, with a proposed comparison in terms of process steps, efficiency and removal of solvent residue. Case studies, in vivo tests and models have been reported to identify the real applications of the produced foams.
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Affiliation(s)
- Paolo Trucillo
- Department of Chemical, Material and Industrial Production Engineering (DICMAPI), University of Naples Federico II, Piazzale Vincenzo Tecchio 80, 80125 Napoli, Italy;
- IODO S.r.l., 84123 Salerno, Italy
| | - Ernesto Di Maio
- Department of Chemical, Material and Industrial Production Engineering (DICMAPI), University of Naples Federico II, Piazzale Vincenzo Tecchio 80, 80125 Napoli, Italy;
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24
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Ernlund AW, Moffatt LT, Timm CM, Zudock KK, Howser CW, Blount KM, Alkhalil A, Shupp JW, Karig DK. Examining the effect of wound cleansing on the microbiome of venous stasis ulcers. Wound Repair Regen 2021; 29:766-776. [PMID: 33991156 DOI: 10.1111/wrr.12926] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 03/11/2021] [Accepted: 04/21/2021] [Indexed: 11/30/2022]
Abstract
Common treatment for venous leg wounds includes topical wound dressings with compression. At each dressing change, wounds are debrided and washed; however, the effect of the washing procedure on the wound microbiome has not been studied. We hypothesized that wound washing may alter the wound microbiome. To characterize microbiome changes with respect to wound washing, swabs from 11 patients with chronic wounds were sampled before and after washing, and patient microbiomes were characterized using 16S rRNA sequencing and culturing. Microbiomes across patient samples prior to washing were typically polymicrobial but varied in the number and type of bacterial genera present. Proteus and Pseudomonas were the dominant genera in the study. We found that washing does not consistently change microbiome diversity but does cause consistent changes in microbiome composition. Specifically, washing caused a decrease in the relative abundance of the most highly represented genera in each patient cluster. The finding that venous leg ulcer wound washing, a standard of care therapy, can induce changes in the wound microbiome is novel and could be potentially informative for future guided therapy strategies.
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Affiliation(s)
- Amanda W Ernlund
- Department of Research and Exploratory Development, Johns Hopkins Applied Physics Laboratory, Laurel, Maryland, USA
| | - Lauren T Moffatt
- The Firefighters' Burn and Surgical Research Laboratory, MedStar Health Research Institute, Hyattsville, Maryland, USA.,Departments of Surgery, Biochemistry and Molecular & Cellular Biology, Georgetown University School of Medicine, Washington, District of Columbia, USA
| | - Collin M Timm
- Department of Research and Exploratory Development, Johns Hopkins Applied Physics Laboratory, Laurel, Maryland, USA
| | - Kristina K Zudock
- Department of Research and Exploratory Development, Johns Hopkins Applied Physics Laboratory, Laurel, Maryland, USA
| | - Craig W Howser
- Department of Research and Exploratory Development, Johns Hopkins Applied Physics Laboratory, Laurel, Maryland, USA
| | - Kianna M Blount
- Department of Research and Exploratory Development, Johns Hopkins Applied Physics Laboratory, Laurel, Maryland, USA
| | - Abdulnaser Alkhalil
- The Firefighters' Burn and Surgical Research Laboratory, MedStar Health Research Institute, Hyattsville, Maryland, USA
| | - Jeffrey W Shupp
- The Firefighters' Burn and Surgical Research Laboratory, MedStar Health Research Institute, Hyattsville, Maryland, USA.,Departments of Surgery, Biochemistry and Molecular & Cellular Biology, Georgetown University School of Medicine, Washington, District of Columbia, USA
| | - David K Karig
- Department of Research and Exploratory Development, Johns Hopkins Applied Physics Laboratory, Laurel, Maryland, USA.,Department of Bioengineering, Clemson University, 301 Rhodes Research Center, Clemson, South Carolina, USA
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25
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Moeini S, Gottlieb H, Jørgensen TS, Larsen MRB, Brorson S. Treatment of Diabetic Foot Ulcers With Inforatio Technique to Promote Wound Healing: A Feasibility Trial. INT J LOW EXTR WOUND 2021; 22:241-250. [PMID: 33909504 DOI: 10.1177/15347346211002364] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Chronic foot ulcers have extensive consequences for diabetic patients' quality of life and increase risks of amputation and death. The aim of this trial was to assess the feasibility of conducting a larger clinical trial to evaluate the clinical effect of inforatio technique on healing of diabetic foot ulcers (DFUs). Inforatio technique is a novel minimal invasive procedure where small cuts are made on wound beds with punch biopsy tools. This study was a feasibility trial conducted at an outpatient wound care clinic at Zealand University Hospital. Twelve patients with DFUs were included. During a 90-day follow-up, participants visited the clinic 5 times and received inforatio technique twice. Feasibility was assessed with regard to recruitment, acceptability, burden, benefits, protocol adherence, and adverse events. The recruitment rate was 1 patient per eighth day (95% confidence interval [CI] = [4th-13th]), and the retention rate was 100% (95% CI = [74-100]). During follow-up, healing was observed for 4 ulcers (33%, 95% CI = [10-65]) with a mean time for healing of 59 days (range, 22-89) (95% CI = [5-113]). Five ulcers had a reduction of wound area and 3 ulcers had an increase in area from baseline to 90-day follow-up. No temporal relationship was found between inforatio application and wound area increase. There were no patient-reported harmful effects and no adverse events with probable relation to inforatio technique. Patient acceptability and participant adherence were promising. Thus, a larger clinical trial for evaluating the clinical effect of inforatio technique is considered feasible to conduct.
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Affiliation(s)
- Sahar Moeini
- 524788Zealand University Hospital, Koege, Denmark
| | | | | | | | - Stig Brorson
- 524788Zealand University Hospital, Koege, Denmark
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26
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Heinrich M, Jiang H, Scotti F, Booker A, Walt H, Weckerle C, Maake C. Medicinal plants from the Himalayan region for potential novel antimicrobial and anti-inflammatory skin treatments. J Pharm Pharmacol 2021; 73:956-967. [PMID: 33886964 DOI: 10.1093/jpp/rgab039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 02/12/2021] [Indexed: 01/17/2023]
Abstract
BACKGROUND AND OBJECTIVES Adequate treatment of wounds remains one of the major medical needs globally, most notably in the regions with poor or limited access to health care. In many local and traditional systems of medicine, plants are often widely used for treating infected wounds. AIM AND OBJECTIVES The overarching aim of this project was selection of potential species for use in a future treatment by combining with plant resources with aspects of antimicrobial photodynamic therapy (aPDT). Specifically, we focussed on species used locally in the Himalayan region for the treatment of skin disorders and then assessed the existing pharmacological evidence for key species based on the published evidence available. METHODS Database searches were performed to identify relevant publications describing local and traditional uses of plants in the Himalayan region of Bhutan, PR China, India, Nepal and Pakistan. Using the Global Biodiversity Information Facility (GBIF), species were researched in terms of their distribution including in different climatic regions, focussing on species mostly found in higher climatic zones (based on the Köppen-Geiger climate classification). For species used in three or more countries and restricted to the higher altitudes, data on safety, pharmacology, as it relates to dermatological conditions, and phytochemistry were retrieved. KEY FINDINGS The study identified a total of 606 species that are used in the treatment of various skin conditions often associated with infections reported in 84 articles. Common weeds like Ageratum conyzoides and Bidens pilosa, widely used and cultivated species like Centealla asiatiaca and Prunus armenica were excluded. This ultimately led to the identification of a core group of five widely used species restricted to the Himalayan region (Cedrus deodara, Nardostachys jatamansi, Pinus wallichiana, Pinus roxburghii and Valeriana jatamansi). CONCLUSIONS Here we apply a novel approach comprising an assessment of the published information on the use of medicinal plants (i.e. local and traditional knowledge) in the context of their potential to be used in a biomedical form of clinical treatment - aPDT. Then, once sustainable sourcing based on access and benefit-sharing arrangements is in place, these species are investigated for their potential in wound treatment. Ultimately, the goal is to develop a new baseline for primary health care in some of the regions of the world with poor or limited access to health care.
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Affiliation(s)
- Michael Heinrich
- Research Group 'Pharmacognosy and Phytotherapy', UCL School of Pharmacy, University College London, London, UK.,'Graduate Institute of Integrated Medicine, College of Chinese Medicine', and 'Chinese Medicine Research Center', China Medical University, Beitun District, Taichung, Taiwan
| | - Haiping Jiang
- Research Group 'Pharmacognosy and Phytotherapy', UCL School of Pharmacy, University College London, London, UK
| | - Francesca Scotti
- Research Group 'Pharmacognosy and Phytotherapy', UCL School of Pharmacy, University College London, London, UK
| | - Anthony Booker
- Research Group 'Pharmacognosy and Phytotherapy', UCL School of Pharmacy, University College London, London, UK.,Research Centre for Optimal Health, School of Life Sciences, College of Liberal Arts and Sciences, University of Westminster, London, UK
| | - Heinrich Walt
- Department for Cranio-Maxillo-Facial Surgery, University Hospital Zurich, Zurich, Switzerland
| | - Caroline Weckerle
- Institute of Systematic and Evolutionary Botany, University of Zürich, Zürich, Switzerland
| | - Caroline Maake
- Institute of Anatomy, University of Zurich, Zurich, Switzerland
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27
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Silina E, Manturova N, Stupin V. Mesenchymal Stem Cells Application in Wound Tissue Healing in Old Animals. Stem Cells Cloning 2020; 13:103-116. [PMID: 33204113 PMCID: PMC7667208 DOI: 10.2147/sccaa.s267967] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 10/19/2020] [Indexed: 01/15/2023]
Abstract
Purpose An assessment of the effectiveness of progenitor mesenchymal stem cell as injections and as part of a polymer hydrogel for the wounds treatment. Materials and Methods Fixed-size wounds (average area of 135.8 mm2) were modeled on the back of white Wistar rats, aged 9 months. Mesenchymal stem cells (MSC) isolated from a human umbilical cord were injected into the wounds once on the modeling day (SC group). In other animals, MSC were periodically applied externally as one of the components in the polymer hydrogel (Polymer_sc group). The systemic effect of the cells was assessed via the analysis of intact contralateral wounds located on the opposite side of the same animal’s back (groups Control_sc and Control_Psc, respectively). The reference intact wounds belonged to the Control_0 group. The wound area was studied in dynamics. Descriptive microscopy was supplemented by an assessment of the collagen fibers’ maturity, the epidermal layers, and the number of fibroblasts and leukocytes in different parts of the wounds. Results Both the local and systemic application of MSC led to an improvement in wound regeneration. During the acute inflammatory phase (up to 3 days), the method and place of application did not affect the dynamics of wound healing. The use of Polymer_sc ultimately demonstrated the best effectiveness. The anti-inflammatory effect of MSC was confirmed by a decrease in leukocyte infiltration in the wound centers (Polymer_sc and SC groups) and edges (all groups, with the greatest extent in the Polymer_sc group). The proliferative phase that expresses itself via accelerated growth in fibroblast number and collagen production was affected in the Control_Psc group and mostly in the Polymer_sc group. Conclusion The applications of MSC in various ways improve and accelerate wound healing even in old animals. The best performance was achieved in the Polymer_sc group.
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Affiliation(s)
- Ekaterina Silina
- Department of Human Pathology, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - Natalia Manturova
- Department of Plastic and Reconstructive Surgery, Cosmetology and Cell Technologies, Pirogov Russian National Research Medical University, Moscow, Russia
| | - Victor Stupin
- Department of Hospital Surgery №1, Pirogov Russian National Research Medical University, Moscow, Russia
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Aranci K, Uzun M, Su S, Cesur S, Ulag S, Amin A, Guncu MM, Aksu B, Kolayli S, Ustundag CB, Silva JC, Ficai D, Ficai A, Gunduz O. 3D Propolis-Sodium Alginate Scaffolds: Influence on Structural Parameters, Release Mechanisms, Cell Cytotoxicity and Antibacterial Activity. Molecules 2020; 25:E5082. [PMID: 33147742 DOI: 10.3390/molecules25215082] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 10/28/2020] [Accepted: 10/29/2020] [Indexed: 12/20/2022] Open
Abstract
In this study, the main aim was to fabricate propolis (Ps)-containing wound dressing patches using 3D printing technology. Different combinations and structures of propolis (Ps)-incorporated sodium alginate (SA) scaffolds were developed. The morphological studies showed that the porosity of developed scaffolds was optimized when 20% (v/v) of Ps was added to the solution. The pore sizes decreased by increasing Ps concentration up to a certain level due to its adhesive properties. The mechanical, swelling-degradation (weight loss) behaviors, and Ps release kinetics were highlighted for the scaffold stability. An antimicrobial assay was employed to test and screen antimicrobial behavior of Ps against Escherichia coli and Staphylococcus aureus strains. The results show that the Ps-added scaffolds have an excellent antibacterial activity because of Ps compounds. An in vitro cytotoxicity test was also applied on the scaffold by using the extract method on the human dermal fibroblasts (HFFF2) cell line. The 3D-printed SA–Ps scaffolds are very useful structures for wound dressing applications.
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29
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Seidel D, Storck M, Lawall H, Wozniak G, Mauckner P, Hochlenert D, Wetzel-Roth W, Sondern K, Hahn M, Rothenaicher G, Krönert T, Zink K, Neugebauer E. Negative pressure wound therapy compared with standard moist wound care on diabetic foot ulcers in real-life clinical practice: results of the German DiaFu-RCT. BMJ Open 2020; 10:e026345. [PMID: 32209619 PMCID: PMC7202734 DOI: 10.1136/bmjopen-2018-026345] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVES The aim of the DiaFu study was to evaluate effectiveness and safety of negative pressure wound therapy (NPWT) in patients with diabetic foot wounds in clinical practice. DESIGN In this controlled clinical superiority trial with blinded outcome assessment patients were randomised in a 1:1 ratio stratified by study site and ulcer severity grade using a web-based-tool. SETTING This German national study was conducted in 40 surgical and internal medicine inpatient and outpatient facilities specialised in diabetes foot care. PARTICIPANTS 368 patients were randomised and 345 participants were included in the modified intention-to-treat (ITT) population. Adult patients suffering from a diabetic foot ulcer at least for 4 weeks and without contraindication for NPWT were allowed to be included. INTERVENTIONS NPWT was compared with standard moist wound care (SMWC) according to local standards and guidelines. PRIMARY AND SECONDARY OUTCOME MEASURES Primary outcome was wound closure within 16 weeks. Secondary outcomes were wound-related and treatment-related adverse events (AEs), amputations, time until optimal wound bed preparation, wound size and wound tissue composition, pain and quality of life (QoL) within 16 weeks, and recurrences and wound closure within 6 months. RESULTS In the ITT population, neither the wound closure rate (difference: n=4 (2.5% (95% CI-4.7% - 9.7%); p=0.53)) nor the time to wound closure (p=0.244) was significantly different between the treatment arms. 191 participants (NPWT 127; SMWC 64) had missing endpoint documentations, premature therapy ends or unauthorised treatment changes. 96 participants in the NPWT arm and 72 participants in the SMWC arm had at least one AE (p=0.007), but only 16 AEs were related to NPWT. CONCLUSIONS NPWT was not superior to SMWC in diabetic foot wounds in German clinical practice. Overall, wound closure rate was low. Documentation deficits and deviations from treatment guidelines negatively impacted the outcome wound closure. TRIAL REGISTRATION NUMBERS NCT01480362 and DRKS00003347.
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Affiliation(s)
- Dörthe Seidel
- Institut für Forschung in der Operativen Medizin (IFOM), Universität Witten/Herdecke, Köln, Germany
| | - Martin Storck
- Klinik für Gefäß- und Thoraxchirurgie, Städtisches Klinikum Karlsruhe gGmbH, Karlsruhe, Germany
| | - Holger Lawall
- Praxis für Herzkreislauferkrankungen, Ettlingen, Germany
- Innere Medizin, Max-Grundig Klinik, Bühlerhöhe, Germany
| | - Gernold Wozniak
- Gefäßchirurgische Klinik, Knappschaftskrankenhaus Bottrop GmbH, Bottrop, Germany
| | - Peter Mauckner
- Innere Medizin, St. Remigius Krankenhaus Opladen, Leverkusen, Germany
| | - Dirk Hochlenert
- Gemeinschaftspraxis Schlotmann-Hochlenert-Zavaleta-Haberstock, Köln, Germany
| | | | - Klemens Sondern
- Klinik für Innere Medizin/Diabetologie, Marien Hospital Dortmund-Hombruch, Dortmund, Germany
| | - Matthias Hahn
- Allgemein- und Viszeralchirurgie, Helfenstein Klinik, Geisslingen, Germany
| | | | - Thomas Krönert
- Klinik für Gefäßchirurgie, Thüringen-Kliniken "Georgius Agricola" GmbH, Saalfeld, Germany
| | - Karl Zink
- Diabetes Klinik, Diabetes Zentrum Mergentheim, Bad Mergentheim, Germany
| | - Edmund Neugebauer
- Department fur Humanmedizin, Universität Witten/Herdecke, Witten, Germany
- Medizinische Hochschule Brandenburg -Theodor Fontane, Neuruppin, Germany
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López-Iglesias C, Barros J, Ardao I, Gurikov P, Monteiro FJ, Smirnova I, Alvarez-Lorenzo C, García-González CA. Jet Cutting Technique for the Production of Chitosan Aerogel Microparticles Loaded with Vancomycin. Polymers (Basel) 2020; 12:polym12020273. [PMID: 32013071 PMCID: PMC7077406 DOI: 10.3390/polym12020273] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 01/25/2020] [Accepted: 01/26/2020] [Indexed: 01/06/2023] Open
Abstract
Biopolymer-based aerogels can be obtained by supercritical drying of wet gels and endowed with outstanding properties for biomedical applications. Namely, polysaccharide-based aerogels in the form of microparticles are of special interest for wound treatment and can also be loaded with bioactive agents to improve the healing process. However, the production of the precursor gel may be limited by the viscosity of the polysaccharide initial solution. The jet cutting technique is regarded as a suitable processing technique to overcome this problem. In this work, the technological combination of jet cutting and supercritical drying of gels was assessed to produce chitosan aerogel microparticles loaded with vancomycin HCl (antimicrobial agent) for wound healing purposes. The resulting aerogel formulation was evaluated in terms of morphology, textural properties, drug loading, and release profile. Aerogels were also tested for wound application in terms of exudate sorption capacity, antimicrobial activity, hemocompatibility, and cytocompatibility. Overall, the microparticles had excellent textural properties, absorbed high amounts of exudate, and controlled the release of vancomycin HCl, providing sustained antimicrobial activity.
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Affiliation(s)
- Clara López-Iglesias
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, I+D Farma group (GI-1645), Faculty of Pharmacy, Agrupación Estratégica de Materiales (AeMAT) and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain; (C.L.-I.); (C.A.-L.)
| | - Joana Barros
- Instituto de Investigação e Inovação em Saúde (i3S), Instituto Nacional de Engenharia Biomédica (INEB) and Faculdade de Engenharia Universidade do Porto (FEUP), Universidade do Porto, 4200-135 Porto, Portugal; (J.B.); (F.J.M.)
| | - Inés Ardao
- BioFarma Research group, Center for Research in Molecular Medicine and Chronic Diseases (CiMUS), Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain;
| | - Pavel Gurikov
- Laboratory for Development and Modelling of Novel Nanoporous Materials, Eißendorfer Str. 38, 21073 Hamburg, Germany;
| | - Fernando J. Monteiro
- Instituto de Investigação e Inovação em Saúde (i3S), Instituto Nacional de Engenharia Biomédica (INEB) and Faculdade de Engenharia Universidade do Porto (FEUP), Universidade do Porto, 4200-135 Porto, Portugal; (J.B.); (F.J.M.)
| | - Irina Smirnova
- Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Str. 38, 21073 Hamburg, Germany;
| | - Carmen Alvarez-Lorenzo
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, I+D Farma group (GI-1645), Faculty of Pharmacy, Agrupación Estratégica de Materiales (AeMAT) and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain; (C.L.-I.); (C.A.-L.)
| | - Carlos A. García-González
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, I+D Farma group (GI-1645), Faculty of Pharmacy, Agrupación Estratégica de Materiales (AeMAT) and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain; (C.L.-I.); (C.A.-L.)
- Correspondence: ; Tel.: +34-881-814882
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Jones M, Kujundzic M, John S, Bismarck A. Crab vs. Mushroom: A Review of Crustacean and Fungal Chitin in Wound Treatment. Mar Drugs 2020; 18:E64. [PMID: 31963764 PMCID: PMC7024172 DOI: 10.3390/md18010064] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 01/14/2020] [Accepted: 01/15/2020] [Indexed: 12/13/2022] Open
Abstract
Chitin and its derivative chitosan are popular constituents in wound-treatment technologies due to their nanoscale fibrous morphology and attractive biomedical properties that accelerate healing and reduce scarring. These abundant natural polymers found in arthropod exoskeletons and fungal cell walls affect almost every phase of the healing process, acting as hemostatic and antibacterial agents that also support cell proliferation and attachment. However, key differences exist in the structure, properties, processing, and associated polymers of fungal and arthropod chitin, affecting their respective application to wound treatment. High purity crustacean-derived chitin and chitosan have been widely investigated for wound-treatment applications, with research incorporating chemically modified chitosan derivatives and advanced nanocomposite dressings utilizing biocompatible additives, such as natural polysaccharides, mineral clays, and metal nanoparticles used to achieve excellent mechanical and biomedical properties. Conversely, fungi-derived chitin is covalently decorated with -glucan and has received less research interest despite its mass production potential, simple extraction process, variations in chitin and associated polymer content, and the established healing properties of fungal exopolysaccharides. This review investigates the proven biomedical properties of both fungal- and crustacean-derived chitin and chitosan, their healing mechanisms, and their potential to advance modern wound-treatment methods through further research and practical application.
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Affiliation(s)
- Mitchell Jones
- School of Engineering, RMIT University, Bundoora East Campus, P.O. Box 71, Bundoora VIC 3083, Australia
| | - Marina Kujundzic
- Institute of Material Chemistry and Research, Polymer and Composite Engineering (PaCE) Group, Faculty of Chemistry, University of Vienna, Währinger Straße 42, 1090 Vienna, Austria
| | - Sabu John
- School of Engineering, RMIT University, Bundoora East Campus, P.O. Box 71, Bundoora VIC 3083, Australia
| | - Alexander Bismarck
- Institute of Material Chemistry and Research, Polymer and Composite Engineering (PaCE) Group, Faculty of Chemistry, University of Vienna, Währinger Straße 42, 1090 Vienna, Austria
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Abstract
Honey is a complex sweet food stuff with well-established antimicrobial and antioxidant properties. It has been used for millennia in a variety of applications, but the most noteworthy include the treatment of surface wounds, burns and inflammation. A variety of substances in honey have been suggested as the key component to its antimicrobial potential; polyphenolic compounds, hydrogen peroxide, methylglyoxal and bee-defensin 1. These components vary greatly across honey samples due to botanical origin, geographical location and secretions from the bee. The use of medical grade honey in the treatment of surface wounds and burns has been seen to improve the healing process, reduce healing time, reduce scarring and prevent microbial contamination. Therefore, if medical grade honeys were to be included in clinical treatment, it would reduce the demand for antibiotic usage. In this review, we outline the constituents of honey and how they affect antibiotic potential in a clinical setting. By identifying the key components, we facilitate the development of an optimally antimicrobial honey by either synthetic or semisynthetic production methods.
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Affiliation(s)
| | | | - Jonathan A. G. Cox
- School of Life and Health Sciences, Aston University, Aston Triangle, Birmingham B4 7ET, UK; (V.C.N.); (J.H.)
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Abstract
Cold atmospheric plasmas (CAP) have been used in multiple medical fields and have become a promising medical technology. CAP-generating devices are safe and easy to operate and can now be manufactured at a low cost due to advancements in electronics and microchips. A primary application of CAP is as a broad-spectrum antimicrobial technology. With the high incidence of infections caused by drug-resistant microorganisms, a non-antibiotic based treatment modality such as CAP holds great therapeutic promise, particularly in the wound care field. In addition to its antimicrobial properties, CAP treatment enhances wound healing by increasing cutaneous microcirculation, monocyte stimulation, and keratinocyte proliferation. CAP has been used by dentists for disinfection of teeth, enhancing gingival fibroblast activity, and even teeth whitening. CAP can combat tumour growth by increasing the efficacy of antitumour therapeutic agents, reactivating apoptotic pathways, or down-regulating growth-related gene sites. Most of the health-care related research on CAP has occurred in the past 15 years; the field is relatively young and needs additional research, as well as confirmation of the existing supporting literature. The purpose of this report is to provide the reader with an overview of the therapeutic application of the cold plasma technology.
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Affiliation(s)
- Mina Izadjoo
- President and Chief Science Officer, Trideum Biosciences, Integrated Pharma Services, Integrated MicroSciences, Frederick, Maryland, US
| | | | - Hosan Kim
- Senior Scientist, Trideum Biosciences, Integrated Pharma Services
| | - Jeffry Skiba
- Chief Technology Officer, Integrated Pharma Services, Integrated MicroSciences, Frederick, Maryland, US
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34
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Loan Khanh L, Thanh Truc N, Tan Dat N, Thi Phuong Nghi N, van Toi V, Thi Thu Hoai N, Ngoc Quyen T, Thi Thanh Loan T, Thi Hiep N. Gelatin-stabilized composites of silver nanoparticles and curcumin: characterization, antibacterial and antioxidant study. Sci Technol Adv Mater 2019; 20:276-290. [PMID: 31068981 PMCID: PMC6484479 DOI: 10.1080/14686996.2019.1585131] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Revised: 02/16/2019] [Accepted: 02/16/2019] [Indexed: 05/10/2023]
Abstract
This is a preliminary study of a material comprising gelatin (Gel), silver nanoparticles (AgNPs) and curcumin (Cur) aimed for wound-healing treatment. Gelatin was used to stabilize AgNPs and encapsulate curcumin to form a therapeutic composite (GelCurAg) for their strong bactericidal and antioxidant properties. GelCurAg formulations with different gelatin concentrations were characterized to attain information about their physiochemical properties and the loading efficiency of therapeutic agents. In vitro assessment of GelCurAg focused on antibacterial, antioxidant and cytotoxic aspects. The results suggested that Gel1CurAg (synthesized from 1% gelatin solution) could be utilized as potential therapeutic agents in treating infectious wound owing to its bactericidal and antioxidant effects and low toxicity for clinical uses.
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Affiliation(s)
- Ly Loan Khanh
- Department of Biomedical Engineering, International University, Vietnam National University - Ho Chi Minh City (VNU-HCM), Ho Chi Minh City, Vietnam
| | - Nguyen Thanh Truc
- Department of Biomedical Engineering, International University, Vietnam National University - Ho Chi Minh City (VNU-HCM), Ho Chi Minh City, Vietnam
| | - Nguyen Tan Dat
- Department of Biomedical Engineering, International University, Vietnam National University - Ho Chi Minh City (VNU-HCM), Ho Chi Minh City, Vietnam
| | - Nguyen Thi Phuong Nghi
- Department of Biomedical Engineering, International University, Vietnam National University - Ho Chi Minh City (VNU-HCM), Ho Chi Minh City, Vietnam
| | - Vo van Toi
- Department of Biomedical Engineering, International University, Vietnam National University - Ho Chi Minh City (VNU-HCM), Ho Chi Minh City, Vietnam
| | - Nguyen Thi Thu Hoai
- Department of Biotechnology, International University, Vietnam National University - Ho Chi Minh City (VNU-HCM), Ho Chi Minh City, Vietnam
| | - Tran Ngoc Quyen
- Institute of Applied Materials Science, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam
- Graduate School of Science and Technology Viet Nam, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam
| | - Tran Thi Thanh Loan
- Department of Histology, Embryology and Pathology, University of Medicine and Pharmacy, Ho Chi Minh City, Vietnam
| | - Nguyen Thi Hiep
- Department of Biomedical Engineering, International University, Vietnam National University - Ho Chi Minh City (VNU-HCM), Ho Chi Minh City, Vietnam
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Zhang S, Sunami Y, Hashimoto H. Mini Review: Nanosheet Technology towards Biomedical Application. Nanomaterials (Basel) 2017; 7:nano7090246. [PMID: 28858235 PMCID: PMC5618357 DOI: 10.3390/nano7090246] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 08/26/2017] [Accepted: 08/28/2017] [Indexed: 12/11/2022]
Abstract
The fabrication technique of ultrathin film (commonly known as nanosheets) has been significantly developed over the years. Due to the mechanical properties of nanosheets, such as high levels of adhesion and flexibility, this made nanosheets the ideal candidate in biomedical applications. In this review, innovative biomedical applications of nanosheets are discussed, which include, drug delivery, wound treatment, and functional nanosheets towards flexible biodevices, etc. Finally, the future outlook of nanosheet technology towards a biomedical application is discussed.
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Affiliation(s)
- Sheng Zhang
- Micro/Nano Technology Center, Tokai University, 4-1-1 Kitakaname, Hiratsuka-city, Kanagawa 259-1292, Japan.
| | - Yuta Sunami
- Micro/Nano Technology Center, Tokai University, 4-1-1 Kitakaname, Hiratsuka-city, Kanagawa 259-1292, Japan.
- Department of Mechanical Engineering, Tokai University, 4-1-1 Kitakaname, Hiratsuka-city, Kanagawa 259-1292, Japan.
| | - Hiromu Hashimoto
- Department of Mechanical Engineering, Tokai University, 4-1-1 Kitakaname, Hiratsuka-city, Kanagawa 259-1292, Japan.
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Masiero FS, Aquino MFK, Nassu MP, Pereira DIB, Leite DS, Thyssen PJ. First Record of Larval Secretions of Cochliomyia macellaria (Fabricius, 1775) (Diptera: Calliphoridae) Inhibiting the Growth of Staphylococcus aureus and Pseudomonas aeruginosa. Neotrop Entomol 2017; 46:125-129. [PMID: 27696133 DOI: 10.1007/s13744-016-0444-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 09/05/2016] [Indexed: 06/06/2023]
Abstract
Maggot debridement therapy (MDT) consists on the intentional and controlled application of sterilized larvae of the order Diptera on necrotic skin lesions with the purpose of cleaning necrotic tissue and removing pathogenic bacteria. During MDT, a marked antimicrobial activity has been reported in literature specially associated with antibacterial substances from Lucilia sericata (Meigen); however, regarding Cochliomyia macellaria (Fabricius), little is known. This study aimed to evaluate in vitro inhibition of bacterial growth of Pseudomonas aeruginosa and Staphylococcus aureus in contact with excretions and secretions (ES) from C. macellaria larvae. Larval ES were extracted in sterile distilled water and divided in three groups: ES, containing 400 μL of autoclaved ES; ES+BAC, containing 400 μL of autoclaved ES+0.5-μL bacterial inoculum; and CONT-BAC, containing 400 μL of sterile distilled water +0.5 μL of bacterial inoculum. Aliquots of each experimental group were plated by spreading onto Petri dishes. Seedings were made at 0, 1, 2, 4, and 12 h after the extraction of ES. In ES+BAC groups, inhibition of S. aureus was verified between times 1 and 2 h and P. aeruginosa was inhibited between 0 and 4 h. There was no growth observed in any ES group. In the CONT-BAC groups, the number of colonies from time 4 h became countless for S. aureus and decreased for P. aeruginosa. As reported in the literature, we note here that ES have excellent bactericidal activity for both gram-positive and gram-negative bacteria, and this study shows for the first time the action of the bactericidal activity of exosecretions of C. macellaria against S. aureus and P. aeruginosa.
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Affiliation(s)
- F S Masiero
- Dept of Microbiology and Parasitology, Federal Univ of Pelotas, Pelotas, Brasil
| | - M F K Aquino
- Dept of Animal Biology, State Univ of Campinas, 255 Monteiro Lobato St, 13083-862, Campinas, SP, Brasil.
| | - M P Nassu
- Dept of Animal Biology, State Univ of Campinas, 255 Monteiro Lobato St, 13083-862, Campinas, SP, Brasil
| | - D I B Pereira
- Dept of Microbiology and Parasitology, Federal Univ of Pelotas, Pelotas, Brasil
| | - D S Leite
- Dept of Genetics, Evolution and BioAgents, State Univ of Campinas, Campinas, Brasil
| | - P J Thyssen
- Dept of Animal Biology, State Univ of Campinas, 255 Monteiro Lobato St, 13083-862, Campinas, SP, Brasil
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Ozkan G, Kamiloglu S, Ozdal T, Boyacioglu D, Capanoglu E. Potential Use of Turkish Medicinal Plants in the Treatment of Various Diseases. Molecules 2016; 21:257. [PMID: 26927038 DOI: 10.3390/molecules21030257] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 02/05/2016] [Accepted: 02/18/2016] [Indexed: 11/16/2022] Open
Abstract
Medicinal plants are sources of health-promoting substances, including phytochemicals and phytoalexins that comprise polyphenols, flavonoids, carotenoids, vitamins A, C, E and several other constituents. Many studies have indicated that medicinal plants have been used to treat human diseases for thousands of years owing to their antimicrobial and antioxidant activities. Medicinal plants reduce the oxidative stress in cells and prevent cancer, cardiovascular and inflammatory diseases, neurodegenerative and digestive system disorders. These potential beneficial effects have been attributed to the presence of bioactive compounds that show antioxidant properties by acting as free radical scavengers or metal chelators, reducing the reactions that produce reactive oxygen and nitrogen species (ROS/RNS). Considering the importance of medicinal plants in terms of their beneficial health effects, some of the medicinally important plants grown in Turkey are covered in this review with respect to their antioxidant potential and phytochemical profile.
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Abstract
Traditionally, native Australian aborigines have used emu oil for the treatment of inflammation and to accelerate wound healing. Studies on mice suggest that topically applied emu oil may have anti-inflammatory properties and may promote wound healing. We investigated the effects of ratite oils (6 emu, 3 ostrich, 1 rhea) on immortalized human keratinocytes (HaCaT cells) in vitro by culturing the cells in media with oil concentrations of 0%, 0.5%, and 1.0%. Peking duck, tea tree, and olive oils were used as comparative controls. The same oils at 0.5% concentration were evaluated for their influence on peripheral blood mononuclear cell (PBMC) survival over 48 hr and their ability to inhibit IFNγ production in PBMCs activated by phytohemagglutinin (PHA) in ELISpot assays. Compared to no oil control, significantly shorter population doubling time durations were observed for HaCaT cells cultured in emu oil (1.51×faster), ostrich oil (1.46×faster), and rhea oil (1.64×faster). Tea tree oil demonstrated significant antiproliferative activity and olive oil significantly prolonged (1.35×slower) cell population doubling time. In contrast, almost all oils, particularly tea tree oil, significantly reduced PBMC viability. Different oils had different levels of inhibitory effect on IFNγ production with individual emu, ostrich, rhea, and duck oil samples conferring full inhibition. This preliminary investigation suggests that emu oil might promote wound healing by accelerating the growth rate of keratinocytes. Combined with anti-inflammatory properties, ratite oil may serve as a useful component in bandages and ointments for the treatment of wounds and inflammatory skin conditions.
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Affiliation(s)
| | - Gigi Leung
- Department of Dermatology and Skin Science, University of British Columbia, Vancouver, British Columbia, Canada Vancouver Coastal Health Research Institute, Vancouver, British Columbia V5Z 1M9, Canada
| | - Eddy Wang
- Department of Dermatology and Skin Science, University of British Columbia, Vancouver, British Columbia, Canada Vancouver Coastal Health Research Institute, Vancouver, British Columbia V5Z 1M9, Canada
| | - Sam Ma
- Department of Dermatology and Skin Science, University of British Columbia, Vancouver, British Columbia, Canada
| | - Blanche K K Lo
- Department of Dermatology and Skin Science, University of British Columbia, Vancouver, British Columbia, Canada Vancouver Coastal Health Research Institute, Vancouver, British Columbia V5Z 1M9, Canada
| | - Kevin J McElwee
- Department of Dermatology and Skin Science, University of British Columbia, Vancouver, British Columbia, Canada Vancouver Coastal Health Research Institute, Vancouver, British Columbia V5Z 1M9, Canada
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Fagerdahl AM. The Patient's Conceptions of Wound Treatment with Negative Pressure Wound Therapy. Healthcare (Basel) 2014; 2:272-81. [PMID: 27429276 DOI: 10.3390/healthcare2030272] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 06/10/2014] [Accepted: 07/02/2014] [Indexed: 11/24/2022] Open
Abstract
During the last two decades, additional methods have been developed in wound care where traditional treatments have been insufficient. Negative pressure wound therapy (NPWT) is one such method. This method has been described in multiple studies, but still, many pieces of the puzzle are missing to get a complete picture of NPWT’s impact on the patient’s health-related quality of life and how the patient experiences the treatment. The purpose of this study was to describe the patient’s conceptions of wound treatment with NPWT. The study was inspired by phenomenography, and eight interviews were conducted with patients treated with NPWT. The results of the study were grouped into two main categories: stress and adaptation. Three descriptive categories were presented under stress: personal environment, competence of the nursing staff and organization and continuity of the dressing changes. Two descriptive categories were presented under adaptation: knowledge and creativity and confidence with the healthcare. Patients were affected by the treatment, and at times, the stress meant that they had difficulty coping. The most common source of stress observed in this study was the care environment, particularly the organization of the dressing changes and deficiencies in the healthcare personnel’s competence.
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Lavery LA, Boulton AJ, Niezgoda JA, Sheehan P. A comparison of diabetic foot ulcer outcomes using negative pressure wound therapy versus historical standard of care. Int Wound J 2007; 4:103-13. [PMID: 17651226 PMCID: PMC7951410 DOI: 10.1111/j.1742-481x.2007.00317.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Diabetic foot ulcers (DFUs) are a leading cause of morbidity and hospitalisation among patients with diabetes. We analysed claims data for Medicare part B diabetic foot ulcer patients treated with Negative Pressure Wound Therapy at home (N = 1135) and diabetic foot ulcer patients from a published meta-analysis of randomised controlled wet-to-moist therapy. The expected costs of care for the two treatments were also compared. A significantly greater proportion of wounds treated with NPWT achieved a successful treatment endpoint compared with wet-to-moist therapy at both 12 weeks (39.5% versus 23.9%; P < 0.001) and 20 weeks (46.3% versus 32.8%; P < 0.001). NPWT-treated patients reached a successful wound treatment endpoint more rapidly, and the benefit was apparent in all wound sizes. Expected 20-week treatment costs for NPWT were similar to those for wet-to-moist therapy if one nursing visit per day for the latter is assumed but 42% less if two nursing visits per day are made. Thus, NPWT may improve the proportion of DFUs that attain a successful wound treatment endpoint and decrease resource utilisation by a given health care system compared with standard wet-to-moist therapy.
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Affiliation(s)
- Lawrence A Lavery
- Texas A&M Health Science Center College of Medicine, Department of Surgery, Scott and White Hospital, Temple, TX 78628, USA.
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