Chronic wounds

慢性伤口
  • 文章类型: Journal Article
    最近,关于标准压疮(PU)风险评估工具的有效性,越来越多的不确定性出现了,怀疑不比临床判断好,尤其是在体弱多病的老年人群中。本研究旨在确定住院老年人PU发展和严重程度的主要临床预测变量,利用多维脆弱评估,并将它们与Braden量表进行比较。
    人群由316名患者组成,21/02/22-01/07/22期间,在(意大利)Sarzana的SanBartolomeo医院接受老年科和过渡护理。收集的信息包括记忆和实验室数据。进行了全面的老年评估,还包括人体测量和物理性能测量。采用多因素logistic分析,在二元分类测试和随后的严重程度顺序分类测试中。通过ROC曲线估计和与Braden量表的AUC比较来评估模型的最终性能。
    在人口中,152名受试者(48%)在不同严重程度发展PU。结果表明,年龄,Braden量表(流动性和摩擦/剪切子量表),Barthel秤,迷你营养评估,血红蛋白,和白蛋白是与PU发展相关的预测因子(AUC85%)。结果是优于单独使用Braden量表(AUC75%)。关于PU严重程度的预测因素的识别,4AT也成为潜在相关的。
    评估受试者的营养状况,物理性能,和功能自主性使Braden量表能够有效整合,以识别最易患PU的患者。我们的发现支持将一套全面的方法论上稳健的脆弱决定因素整合到传统的风险评估工具中。这种整合反映了患者虚弱之间的相互作用,皮肤脆弱,和PU的发展在非常老的住院患者。
    UNASSIGNED: In recent times, growing uncertainty has emerged regarding the effectiveness of standard pressure ulcer (PU) risk assessment tools, which are suspected to be no better than clinical judgment, especially in the frail and comorbid elderly population. This study aimed to identify the primary clinical predictive variables for PU development and severity in hospitalized older adults, utilizing a multidimensional frailty assessment, and compare them with the Braden scale.
    UNASSIGNED: The population consisted of 316 patients, admitted to the Geriatric Unit and Transitional Care of San Bartolomeo Hospital in Sarzana (Italy) during the period 21/02/22-01/07/22. The collected information included both anamnestic and laboratory data. A comprehensive geriatric assessment was performed, including also anthropometric and physical performance measurements. Multivariate logistic analysis was used, both in a binary classification test and in the subsequent ordinal classification test of severity levels. The final performance of the model was assessed by ROC curve estimation and AUC comparison with the Braden scale.
    UNASSIGNED: Within the population, 152 subjects (48%) developed PU at different levels of severity. The results showed that age, Braden scale (subscales of mobility and friction/shear), Barthel scale, Mini Nutritional Assessment, hemoglobin, and albumin are predictors associated with the development of PU (AUC 85%). The result is an improvement over the use of the Braden scale alone (AUC 75%). Regarding the identification of predictive factors for PU severity, 4AT also emerges as potentially relevant.
    UNASSIGNED: Assessing the subject\'s nutritional status, physical performance, and functional autonomies enables the effective integration of the Braden scale in identifying patients most susceptible to developing PU. Our findings support the integration of a comprehensive set of methodologically robust frailty determinants into traditional risk assessment tools. This integration reflects the mutual interplay between patients\' frailty, skin frailty, and PU development in very old hospitalized patients.
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  • 文章类型: Journal Article
    生物传感器在治疗慢性伤口方面取得了突破。自从克拉克发现了氧电极,生物传感器已经发展成为智能绷带的设计,它可以根据生理因素分配药物来治疗伤口,如pH或葡萄糖浓度,这表明了致病倾向。基于适体的生物传感器有助于识别和表征伤口中经常形成抗生素抗性生物膜的致病菌。几种功能性聚合物已成为这些生物传感器制造中不可或缺的部分。从天然聚合物如藻酸盐开始,壳聚糖,和基于丝的丝素蛋白,它们是可生物降解和吸收性的,在配制生物相容性合成聚合物方面取得了进展,例如聚氨酯和聚乙二醇,旨在减少蛋白质和细胞的非特异性结合,使生物传感器对患者使用不那么痛苦或麻烦。最近,聚己内酯已经开发出来,它提供了延展性和大的表面积体积比。在制造和使用用于伤口愈合的生物传感器方面仍有进步的空间,在这篇综述中,从生物标志物检测到智能敷料,再到将机器学习纳入定制伤口贴片设计中,同时使应用更容易的生物传感器的发展趋势得到了强调,并且可以长期使用。
    Biosensors have led to breakthroughs in the treatment of chronic wounds. Since the discovery of the oxygen electrode by Clarke, biosensors have evolved into the design of smart bandages that dispense drugs to treat wounds in response to physiological factors, such as pH or glucose concentration, which indicate pathogenic tendencies. Aptamer-based biosensors have helped identify and characterize pathogenic bacteria in wounds that often form antibiotic-resistant biofilms. Several functional polymers have served as indispensable parts of the fabrication of these biosensors. Beginning with natural polymers such as alginate, chitosan, and silk-based fibroin, which are biodegradable and absorptive, advances have been made in formulating biocompatible synthetic polymers such as polyurethane and polyethylene glycol designed to reduce non-specific binding of proteins and cells, making biosensors less painful or cumbersome for patient use. Recently, polycaprolactone has been developed, which offers ductility and a large surface-area-to-volume ratio. There is still room for advances in the fabrication and use of biosensors for wound healing and in this review, the trend in developing biosensors from biomarker detection to smart dressings to the incorporation of machine learning in designing customized wound patches while making application easier is highlighted and can be used for a long time.
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  • 文章类型: Journal Article
    本研究旨在通过开发和评估用于浸渍自动分类的卷积神经网络(CNN)架构来推进数字伤口护理领域。严重的伤口愈合并发症,在458张注释的伤口图像中。浸渍的检测和分类可以改善患者结果。比较了几种CNN模型,MobileNetV2成为表现最好的模型,尽管参数较少,但仍可实现最高精度。这一发现强调了相对于数据集大小考虑模型复杂性的重要性。该研究还探讨了图像裁剪的作用以及使用Grad-CAM可视化来了解CNN的决策过程。从医学的角度来看,结果表明,使用CNN进行浸渍分类可能会提高诊断准确性,并减少临床医生的时间和精力。
    This study aims to advance the field of digital wound care by developing and evaluating convolutional neural network (CNN) architectures for the automatic classification of maceration, a significant wound healing complication, in 458 annotated wound images. Detection and classification of maceration can improve patient outcomes. Several CNN models were compared and MobileNetV2 emerged as the top-performing model, achieving the highest accuracy despite having fewer parameters. This finding underscores the importance of considering model complexity relative to dataset size. The study also explored the role of image cropping and the use of Grad-CAM visualizations to understand the decision-making process of the CNN. From a medical perspective, results indicate that employing CNNs for classification of maceration may enhance diagnostic accuracy and reduce the clinicians\' time and effort.
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  • 文章类型: Journal Article
    慢性伤口感染是一种无声的大流行,有可能成为全球医疗保健危机。需要创新来控制感染和改善愈合。在这一挑战的背景下,研究人员正在利用血浆激活水凝胶疗法(PAHT)单独使用或与其他抗菌策略联合使用.PAHT涉及具有活性氧和氮物质的水凝胶的冷大气压等离子体活化,以净化感染并促进愈合。本文介绍了用于伤口治疗的PAHT,并概述了当前的研究以及将该技术转化为医疗用途的重大挑战。最后一部分介绍了自主PAHT的“蓝图”,可以将伤口的管理和治疗从临床环境转移到社区。
    Chronic wound infections are a silent pandemic in danger of becoming a global healthcare crisis. Innovations to control infections and improve healing are required. In the context of this challenge, researchers are exploiting plasma-activated hydrogel therapy (PAHT) for use either alone or in combination with other antimicrobial strategies. PAHT involves the cold atmospheric pressure plasma activation of hydrogels with reactive oxygen and nitrogen species to decontaminate infections and promote healing. This opinion article describes PAHT for wound treatment and provides an overview of current research and outstanding challenges in translating the technology for medical use. A \'blueprint\' of an autonomous PAHT is presented in the final section that can move the management and treatment of wounds from the clinical setting to the community.
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  • 文章类型: Journal Article
    一个彻底的,整体伤口评估对于确定难以愈合伤口的病因和制定诊断至关重要,这将支持治疗计划。本文介绍了从整体上评估伤口难以愈合的患者的基本要素,包括病史,进行临床检查和调查,考虑到病人的身体,心理,精神和社会需求。作者还概述了定时器(组织,感染/炎症,水分,边缘,再生和社会因素)详细的伤口评估工具,并解释了与准确评估伤口相关的一些挑战。
    A thorough, holistic wound assessment is essential to identify the aetiology of a hard-to-heal wound and formulate a diagnosis, which will underpin the treatment plan. This article describes the fundamental elements of assessing a patient with a hard-to-heal wound holistically, including taking a patient history, performing a clinical examination and investigations, and considering the patient\'s physical, psychological, spiritual and social needs. The author also outlines the aspects of the TIMERS (tissue, infection/inflammation, moisture, edge, regeneration and social factors) wound assessment tool in detail, and explains some of the challenges associated with accurately assessing a wound.
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  • 文章类型: Journal Article
    糖尿病(DM)在德国是一个重要的公共卫生问题,影响了800万人,预测表明未来几年将大幅增加。糖尿病足综合征(DFS),导致行动不便和截肢,由于资源短缺和需要专业护理,医疗保健面临挑战。EPWUF-KI项目旨在通过将人工智能(AI)纳入DFS伤口护理来支持门诊护理人员,专注于优化治疗和自动化文档。
    Diabetes mellitus (DM) is a significant public health issue in Germany, affecting 8 million individuals, with projections suggesting a substantial increase in the following years. Diabetic Foot Syndrome (DFS), leading to mobility issues and limb amputations, challenging healthcare due to resource shortages and the need for specialized care. The EPWUF-KI project seeks to support outpatient caregivers by incorporating artificial intelligence (AI) into DFS wound care, focusing on optimizing treatment and automating documentation.
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  • 文章类型: Journal Article
    暂无摘要。
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  • 文章类型: Journal Article
    慢性伤口在人口老龄化中面临越来越大的挑战,导致治疗过程延长,并且有顽固性伤口的患者寻求入院。此外,患者护理的总体趋势是朝着简单廉价的治疗方法发展,在几乎没有材料成本的门诊环境中可行。这项回顾性病例研究旨在阐明与使用头皮穿孔移植物处理难以愈合的伤口的毛囊单位移植相关的手术程序和结果。
    28名患者的队列,包括20名男性和8名女性,平均年龄为72.61岁(范围:48-89),平均伤口面积为82.49cm2,从头皮上解剖了含有毛囊(直径2-3mm)的穿孔移植物。随后,这些移植物被移植到伤口床上。溃疡愈合的回顾性评估包括照片文件和临床记录,而患者满意度则通过结构化问卷进行评估。
    在78.6%(22)的病例中,观察到对伤口愈合的有利影响,以上皮形成为特征,在57.1%(16)的患者中,伤口完全闭合。除了一个捐赠网站,所有其他部位均未出现并发症。患者调查表明,大多数接受该程序的人并不认为这是痛苦或耗时的。值得注意的是,81%(17)的个体表示愿意再次接受治疗。即使在具有挑战性的伤口条件下,例如坏疽性脓皮病,我们的方法对伤口愈合有积极作用.
    在我们的队列中,在处理难以愈合的伤口时,毛囊单位的使用导致大多数患者完全或部分伤口闭合,伴随着最低的发病率,减少操作时间,并发症和相关费用的低发生率。
    UNASSIGNED: Chronic wounds present a growing challenge in the aging population, resulting in an extended course of treatment and an increased influx of patients with recalcitrant wounds seeking admission to hospitals. Furthermore, the general trend in patient care is toward simple and inexpensive treatment methods, feasible in an outpatient setting with little material costs. This retrospective case study aims to elucidate the operative procedure and outcomes associated with hair follicle unit transplantation utilizing punch grafts from the scalp for the management of hard-to-heal wounds.
    UNASSIGNED: A cohort of 28 patients, comprising 20 males and eight females, with a mean age of 72.61 years (range: 48-89) and an average wound area of 82.49 cm2, underwent dissection of punch grafts containing hair follicles (2-3 mm in diameter) from the scalp. Subsequently, these grafts were transplanted into the wound bed. The retrospective evaluation of ulcer healing encompassed photo documentation and clinical records, while patient satisfaction was assessed through structured questionnaires.
    UNASSIGNED: In 78.6% (22) of the cases, a favorable impact on wound healing was observed, characterized by epithelization, and in 57.1% (16) of the patients, complete wound closure was achieved. With the exception of one donor site, all other sites healed without complications. The patient survey indicated that the majority of individuals subjected to the procedure did not perceive it as painful or time-consuming. Notably, 81% (17) of individuals expressed a willingness to undergo the treatment again. Even in challenging wound conditions, such as pyoderma gangrenosum, our method demonstrated a positive effect on wound healing.
    UNASSIGNED: Within our cohort, the utilization of hair follicle units in the management of hard-to-heal wounds resulted in either complete or partial wound closure for the majority of patients, accompanied by minimal morbidity, reduced operation time, and a low incidence of complications and associated costs.
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  • 文章类型: Journal Article
    慢性伤口愈合是一个常见的临床挑战,以细菌感染为特征,持续的炎症反应,氧化应激,和新生血管形成不足。由于其抗氧化剂,纳米酶已成为治疗皮肤伤口的有希望的解决方案,抗菌,和血管生成特性。近年来,将纳米酶与水凝胶结合以共同促进伤口愈合吸引了越来越多的研究兴趣。然而,目前的大多数纳米复合水凝胶仍然不能有效地同时控制炎症,伤口愈合中的氧化应激和细菌侵袭。改善纳米复合水凝胶的治疗功能多样性和功效仍然是需要解决的问题。在这项研究中,我们通过将多巴胺修饰的甲基丙烯酸化明胶(GelMD)与负载姜黄素的锌掺杂的中空介孔氧化铈纳米颗粒(Cur@ZHMCe)相结合,制备了纳米复合水凝胶(GelMD-Cur@ZHMCe)。所得的水凝胶表现出优异的吸水性,附着力,和生物相容性。体外和体内研究表明,GelMD-Cur@ZHMCe具有优异的抗氧化性能,抗菌,抗炎和血管促进特性,使其能够迅速促进伤口修复。GelMD-Cur@ZHMCe治疗大鼠皮肤总缺损感染模型14天后创面愈合率达到98.5±4.9%。已证明这种多功能纳米复合水凝胶为皮肤修复提供了有希望的治疗策略。
    Chronic wound healing is a common clinical challenge, characterized by bacterial infection, protracted inflammatory response, oxidative stress, and insufficient neovascularization. Nanozymes have emerged as a promising solution for treating skin wounds due to their antioxidant, antibacterial, and angiogenic properties. In recent years, combining nanozymes with hydrogels to jointly promote wound healing has attracted increasing research interest. However, most of the current nanocomposite hydrogels are still not effective in simultaneously controlling inflammatory, oxidative stress and bacterial invasion in wound healing. Improving the therapeutic functional diversity and efficacy of nanocomposite hydrogels remains a problem that needs to be addressed. In this study, we prepared nanocomposite hydrogels (GelMD-Cur@ZHMCe) by combining methylacrylated gelatin modified with dopamine (GelMD) with Zinc-doped hollow mesoporous cerium oxide nanoparticles loaded with curcumin (Cur@ZHMCe). The resulting hydrogels exhibited excellent water absorption, adhesion, and biocompatibility. In vitro and in vivo studies have demonstrated that GelMD-Cur@ZHMCe has excellent antioxidant, antibacterial, anti-inflammatory and vasculature-promoting properties, which enable it to rapidly promote wound repair. The wound healing rate of the rat total skin defect infection model treated with GelMD-Cur@ZHMCe reached 98.5±4.9 % after 14 days of treatment. It was demonstrated that this multifunctional nanocomposite hydrogel provides a promising therapeutic strategy for skin repair.
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  • 文章类型: Journal Article
    本研究探讨了自体微移植技术(AMG)在治疗传统疗法难治性慢性伤口中的疗效。
    AMG,从脂肪组织或真皮使用机械破碎过程,适用于术后裂开的患者。伤口愈合结果的综合评价,包括表面积减少和完全愈合,在90天的随访期内进行。此外,该研究调查了AMG溶液的细胞抗氧化活性,并表征了通过机械解聚获得的外泌体。
    结果表明伤口愈合显着改善(p<0.05),91.66%的患者显示病变大小至少减少50%,75%的患者在第90天实现完全愈合。值得注意的是,AMG技术证明了仅应用脂肪的立竿见影的效果,虽然真皮和脂肪微型移植物联合显示出更长期的益处,特别是慢性伤口。该研究还阐明了AMG的作用机制,强调它们在增强细胞抗氧化活性和外泌体介导的组织再生中的作用。
    总的来说,这些发现强调了AMG技术作为慢性伤口的通用和有效治疗选择的潜力,保证进一步研究其机制和临床应用。
    UNASSIGNED: This study explores the efficacy of Autologous Micrografts Technology (AMG) in treating chronic wounds refractory to traditional therapies.
    UNASSIGNED: AMGs, derived from adipose tissue or dermis using a mechanical fragmentation process, were applied to patients with post-surgical dehiscence. A comprehensive evaluation of wound healing outcomes, including surface area reduction and complete healing, was conducted over a 90-day follow-up period. Additionally, the study investigated the cellular antioxidant activity of AMG solutions and characterized the exosomes obtained through mechanical disaggregation.
    UNASSIGNED: Results indicate significant improvements (p < 0.05) in wound healing, with 91.66% of patients showing at least a 50% reduction in lesion size and 75% achieving complete healing by day 90. Notably, AMG technology demonstrated immediate efficacy with fat-only application, while combined dermis and fat micrografts showed longer-term benefits, particularly in chronic wounds. The study also elucidated the mechanism of action of AMGs, highlighting their role in enhancing cellular antioxidant activity and exosome-mediated tissue regeneration.
    UNASSIGNED: Overall, these findings underscore the promising potential of AMG technology as a versatile and effective treatment option for chronic wounds, warranting further investigation into its mechanisms and clinical applications.
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