Principles of extramural health care for chronic wounds in China / 中华创伤杂志(英文版)

Development of extramural health care for chronic wounds is still in its infancy in China, and thus it is urgent and vital to establish a correct concept and practicable principles. The authors reviewed recent domestic and international literature and summarized the following treatment procedures and principles for extramural health care of chronic wounds. (1) The patient needs to do self-assessment of the wound by using available simple methods; (2) The patient consults with professional physicians or nurses on wound care to define the severity and etiology of the non-healing wound; (3) Professionals evaluate the existing treatment strategies; (4) Etiological treatments are given by professionals; (5) Patients buy needed dressings via the more convenient ways from pharmacies, e-commerce platform or others; (6) Professionals provide a standardized and reasonable therapeutic plan based on the patient's wound conditions; (7) Both professionals and the patient pay attention to complications to prevent adverse outcomes; (8) Professionals strengthen the public education on wound care and integrated rehabilitation. This review expected to provide new perspectives on the therapeutic strategies for chronic wounds in an extramural setting.

Bilayer hydrogel dressing with lysozyme-enhanced photothermal therapy for biofilm eradication and accelerated chronic wound repair

Biofilms are closely associated with the tough healing and dysfunctional inflammation of chronic wounds. Photothermal therapy (PTT) emerged as a suitable alternative which could destroy the structure of biofilms with local physical heat. However, the efficacy of PTT is limited because the excessive hyperthermia could damage surrounding tissues. Besides, the difficult reserve and delivery of photothermal agents makes PTT hard to eradicate biofilms as expectation. Herein, we present a GelMA-EGF/Gelatin-MPDA-LZM bilayer hydrogel dressing to perform lysozyme-enhanced PTT for biofilms eradication and a further acceleration to the repair of chronic wounds. Gelatin was used as inner layer hydrogel to reserve lysozyme (LZM) loaded mesoporous polydopamine (MPDA) (MPDA-LZM) nanoparticles, which could rapidly liquefy while temperature rising so as to achieve a bulk release of nanoparticles. MPDA-LZM nanoparticles serve as photothermal agents with antibacterial capability, could deeply penetrate and destroy biofilms. In addition, the outer layer hydrogel consisted of gelatin methacryloyl (GelMA) and epidermal growth factor (EGF) promoted wound healing and tissue regeneration. It displayed remarkable efficacy on alleviating infection and accelerating wound healing in vivo. Overall, the innovative therapeutic strategy we came up with has significant effect on biofilms eradication and shows promising application in promoting the repair of clinical chronic wounds.

SURGICAL WOUND MANAGEMENT WITH VACUUM ASSISTED DRESSING

Background and Objectives: To evaluate the role and efficiency of vacuum dressing in thehealing of wounds and to assess the benefits and limitations of using vacuum dressing indifferent types/categories of wound.Methods: The study of 25 cases was conducted in the Department of Surgery of atertiary care teaching hospital over a period of 2 years.Results: Vacuum dressing had a significant effect on the final outcome of wounds.Wounds which seemingly needed a flap surgery in the first impression, withsuccessive application of vacuum dressing cycles, could be covered with a simplesplit thickness skin graft. Many patients were salvaged of a revision amputation asshowed by the decrease in overall amputation rates.Interpretation and Conclusion: Based on the data from the present study and otherstudies available, vacuum dressing results in better healing, with minimalcomplications, and thus looks to be a promising alternative for the management ofvarious wounds. Vacuum dressing leads to faster healing of the wounds, thereforedecreasing the overall hospital stay. Hence, it is cost effective also. It reduces theinconvenience and discomfort caused to the patient by frequent change in dressings.It helps in reducing size of the wounds, has profound effect on wound depth andgranulation as seen in our study. It promotes granulation tissue completely coveringthe tendon, thus enabling simple techniques (e.g., skin graft) rather than formal flapclosure in few cases. Wounds with exposed underlying bone and chronic nonhealing ulcers can be managed well with vacuum dressing. It reduces the number ofamputations and re-debridement required. More number of wounds can be managedsuccessfully with secondary closure or skin grafting after multiple cycles of vacuumdressing. This reduces patient morbidity and minimizes the overall effect on hisquality of life. Good outcome of vacuum dressing also depends on its properapplication.

Effect of macrophage dysfunction on diabetic wound healing: a review of research progress / 中华显微外科杂志

Macrophages play a crucial role in inflammatory, proliferative and reconstructive phases in wound healing. A dysfunction of macrophage could lead to a delay of healing. As the most common type of chronic wounds, the diabetic wound may ultimately result in a delayed or failed wound healing due to a high glucose microenvironment and abnormal metabolic environment. Such abnormal metabolic environment may lead to the aberrant macrophage polarization, abnormal secretion of cytokines and aberrant phagocytic function hence cause prolonged inflammation with excessive oxidative stress reaction. As the consequence, the inflammatory phase in diabetic wound is lengthy while the proliferative and reconstructive phases are usually delayed. The diabetic wound may result in enormous financial burden to patients, the healthcare and the society. This study briefly reviewed the recent research progresses at home and abroad, and analysed and summarized the roles of the dysfunction of macrophage polarization, secretion and phagocytosis in the process of diabetic wound healing.

Construction and verification of an intelligent measurement model for diabetic foot ulcer / 中南大学学报(医学版)

OBJECTIVES@#The measurement of diabetic foot ulcers is important for the success in diabetic foot ulcer management. At present, it lacks the accurate and convenient measurement tools in clinical. In recent years, artificial intelligence technology has demonstrated the potential application value in the field of image segmentation and recognition. This study aims to construct an intelligent measurement model of diabetic foot ulcers based on the deep learning method, and to conduct preliminary verification.@*METHODS@#The data of 1 042 diabetic foot ulcers clinical samples were collected. The ulcers and color areas were manually labeled, of which 782 were used as the training data set and 260 as the test data set. The Mask RCNN ulcer tissue color semantic segmentation and RetinaNet scale digital scale target detection were used to build a model. The training data set was input into the model and iterated. The test data set was used to verify the intelligent measurement model.@*RESULTS@#This study established an intelligent measurement model of diabetic foot ulcers based on deep learning. The mean average precision@.5 intersection over union (mAP@.5IOU) of the color region segmentation in the training set and the test set were 87.9% and 63.9%, respectively; the mAP@.5IOU of the ruler scale digital detection in the training set and the test set were 96.5% and 83.4%, respectively. Compared with the manual measurement result of the test sample, the average error of the intelligent measurement result was about 3 mm.@*CONCLUSIONS@#The intelligent measurement model has good accuracy and robustness in measuring the diabetic foot ulcers. Future research can further optimize the model with larger-scale data samples.

Cultivo mediante hisopado superficial versus cultivo de la biopsia de tejidos profundos en la infección del pie diabético / Culture through superficial swab versus deep tissue biopsy in the diabetic foot infection

RESUMEN Introducción: para lograr el adecuado y precoz diagnóstico de la infección en pie diabético, es necesario la obtención de una muestra bacteriológica de calidad para la identificación del germen causal. Objetivo: identificar posibles relaciones entre los resultados obtenidos, en el cultivo realizado mediante hisopado superficial versus el obtenido mediante biopsia de los tejidos profundos en la infección del pie diabético. Materiales y métodos: se realizó un estudio explicativo observacional, longitudinal, prospectivo en el Servicio Provincial de Angiología y Cirugía Vascular del Hospital Provincial Clínico Quirúrgico Universitario "Comandante Faustino Pérez", durante un periodo de 3 años desde enero del 2016 hasta diciembre del 2018. Una selección muestral no probabilística determinó una muestra constituida por 138 extremidades en 132 pacientes con diagnóstico clínico de pie diabético infectado, que requirieron cirugía para desbridamiento de la lesión. Aceptaron ser incluidos en la investigación y para el aislamiento del germen causal fueron empleados ambos métodos de cultivo: hisopado superficial y biopsia de los tejidos profundos. Resultados: el promedio de microorganismos aislados se incrementó en relación con la severidad de la infección del pie diabético, con mayor incremento en el aislamiento hecho por el hisopado superficial. El hisopado superficial posee pobre correlación con los gérmenes aislados mediante el cultivo de la biopsia de los tejidos profundos. Conclusiones: las muestras deben ser obtenidas preferentemente por curetaje. En el diagnóstico de la infección del pie diabético es de gran utilidad, por su rapidez y concordancia con los resultados del cultivo, efectuar siempre una tinción de Gram a partir del mismo sitio (AU).

ABSTRACT Introduction: to arrive to an adequate and precocious diagnosis of the diabetic foot infection, it is necessary to obtain a qualitative bacteriological sample to identify the causing germ. Objective: to identify possible relationships between the results obtained both, in the culture made through superficial swab and the culture obtained from deep tissues biopsy in the diabetic foot infection. Materials and methods: a prospective, longitudinal, observational, explicative study was carried out in the Provincial Service of Angiology and Vascular Surgery of Provincial University Clinical Surgical Hospital "Comandante Faustino Pérez", in a period of three years, from January 2016 to December 2018. A non-probabilistic sampling choose a sample of 138 lower limbs in 132 patients with clinical diagnosis of infected diabetic foot, who required surgery for lesion debridement. They gave their consent to be included in the research; for the isolation of the casual germ were used both culture methods, superficial swab and deep tissues biopsy. Results: the average of isolated microorganism increased in relation to the severity of the diabetic food infection, with higher increase in the isolation obtained by superficial swab. The superficial swab shows poor correlation with the germ isolates by the culture the deep tissue biopsy. Conclusions: the samples should be gathered preferably by curettage. In the diagnosis of the diabetic foot infection, it is very useful, due to its speed and concordance with the culture results, to make always a Gram staining beginning from the same place (AU).

Relationship between Wound Severity, Discomfort, and Psychological Problems in Patients with a Diabetic Foot Ulcer in Indonesia: A Cross-sectional Study / Relação entre gravidade da ferida, desconforto e problemas psicológicos em pacientes com úlcera diabética do pé na Indonésia: um estudo transversal / Relación entre la gravedad de la herida, la molestia y los problemas psicológicos en pacientes con úlcera del pie diabético en Indonesia: estudio transversal

ABSTRACT Objectives: The purpose of this study is to identify the relationship between wound severity, discomfort, and psychological problems in patients with a diabetic foot ulcer in Indonesia. Methods: A cross-sectional study is conducted in three general hospitals and one clinic in Indonesia. The Bates-Jensen wound assessment tool (BWAT), the discomfort evaluation of wound instrument (DEWI), and the depression, anxiety, and stress scale (DASS) are used to measure the variables of interest. Path analysis is performed to evaluate the association between wound severity, discomfort, and psychological problems. Results: Of 140 patients with diabetic foot ulcers who joined this study, the majority experienced immobilization (74.3 %), pain (69.3 %), and sleep disturbance (63.6 %). The means were as follows: discomfort (2.35 ± 0.33), depression (1.34 ± 0.41), stress (1.49 ± 0.48), anxiety (1.43 ± 0.40), and wound severity (31.35 ± 9.96). Discomfort partially mediated the relationship between wound severity and psychological problems, which indirect effect was 0.11. Conclusion: High prevalence of discomfort, both physical and psychological, was found in patients with a diabetic foot ulcer. Discomfort mediates the relationship between wound severity and psychological problems. Integrating comfort into wound care management may help to reduce the psychological burden.

RESUMEN Objetivos: el presente estudio tiene como objetivo identificar la relación entre la gravedad de la herida, la molestia y los problemas psicológicos en pacientes con úlcera del pie diabético en Indonesia. Métodos: se realizó un estudio transversal en tres hospitales generales y una clínica de Indonesia. La herramienta de evaluación de heridas Bates-Jensen (BWAT, por sus siglas en inglés), el instrumento de evaluación de molestia de la herida (DEWI, por sus siglas en inglés) y la escala de depresión, ansiedad y estrés (DASS, por sus siglas en inglés) se utilizaron para medir las variables de interés. Se realizó un análisis de ruta para evaluar la asociación entre la gravedad de la herida, la molestia y los problemas psicológicos. Resultados: de 140 pacientes con úlcera del pie diabético que participaron en este estudio, la mayoría experimentó inmovilización (74,3 %), dolor (69,3 %) y trastornos del sueño (63,6 %). Las medias fueron las siguientes: molestia (2,35 ± 0,33), depresión (1,34 ± 0,41), estrés (1,49 ± 0,48), ansiedad (1,43 ± 0,40) y gravedad de la herida (31,35 ± 9,96). La molestia medió en parte la relación entre la gravedad de la herida y los problemas psicológicos, cuyo efecto indirecto fue de 0,11. Conclusión: se encontró una alta prevalencia de molestias, tanto físicas como psicológicas, en pacientes con úlcera del pie diabético. Además, la molestia media la relación entre la gravedad de la herida y los problemas psicológicos. La integración de la comodidad en el manejo del cuidado de las heridas puede ayudar a reducir la carga psicológica.

RESUMO Objetivos: o objetivo deste estudo é identificar a relação entre a gravidade da ferida, o desconforto e os problemas psicológicos en pacientes com úlcera do pé diabético na Indonésia. Métodos: foi realizado um estudo transversal em três hospitais gerais e uma clínica da Indonésia. A ferramenta da avaliação de feridas Bates-Jensen (BWAT, por sua sigla em inglês), o instrumento de avaliação do desconforto da ferida (DEWI, por sua sigla em inglês) e a escala de depressão, ansiedade e estresse (DASS, por sua sigla em inglês) foram utilizados para medir as variáveis de interesse. Uma análise de rota foi realizada para avaliar a associação entre a gravidade da ferida, o desconforto e os problemas psicológicos. Resultados: de 140 pacientes com úlcera diabética do pé que participaram deste estudo, a maioria experimentou imobilização (74,3 %), dor (69,3 %) e transtornos do sono (63,6 %). As médias foram: desconforto (2,35 ± 0,33), depressão (1,34 ± 0,41), estresse (1,49 ± 0,48), ansiedade (1,43 ± 0,40) e gravidade da ferida (31,35 ± 9,96). O desconforto foi o mediador em parte da relação entre a gravidade da ferida e os problemas psicológicos, cujo efeito indireto foi de 0,11. Conclusões: verificou-se alta prevalência de desconforto, tanto físico quanto psicológico, em pacientes com úlcera diabética do pé. Além disso, o desconforto intermedeia a relação entre a gravidade da ferida e os problemas psicológicos. A integração do conforto na gestão do cuidado das feridas pode ajudar a reduzir a carga psicológica.

Chronic Nonhealing Ulcers ‒ Garhwal Region (Etiopathology, Microbiology with Susceptibility, Managements & Outcomes)

Introduction:Chronic nonhealing ulcers, with varied etio-pathologies, are difficult to manage and warrant meticulous, early and prolonged directed treatment to prevent their development and complications.Methods:Patients of chronic ulcers (>3 months’ duration), having undergone surgical management at our Institute, VCSGGMS&RI-UT, between January 2018 –August 2019, numbering one hundred twenty five (N= 125), were included in this concurrent observational study, aimed at identifying implicated microrganism(s) and their antibiotic susceptibility, for promoting wound healing, along with surgical measures Results:Male patients (M:F :: 87:38; 69.6% males) in the “20-50 year” age-group (74; 59.2%), with diabetic ulcers (35;28.0%), burns etc. (21;16.8%) and traumatic ulcers (18;14.4%) etc. predominated in the chronic non-healing state. Gram positive (68; 54.4%) organisms (including Staphylococcus) were the major isolates from the ulcers; organisms showing higher sensitivity to the newer generations/groups of antibiotics. Uncontrolled Diabetes, other prolonged illnesses &/or under-nutrition were important causative factors, requiring their remediations and also debridements ± skin/flap coverage (45; 36.0%) with prolonged course of antibiotics and occasional amputations (18; 14.4%) for adequate treatment.Conclusion:Skilled intensive multidisciplinary effort is essential to achieve satisfactory healing and prevent disfigurement and to limit disability and death (11; 8.8%) among the patients.

Preparation and performance evaluation of carboxymethyl chitosan/oxidized glucomannan/panax notoginseng compound sponge dressing for chronic wound / 中国组织工程研究

BACKGROUND: Previous studies have shown that carboxymethyl chitosan/oxidized glucomannan composite sponge can be used as an excellent substrate for drug-loaded chronic wound dressings. OBJECTIVE: To prepare carboxymethyl chitosan/oxidized glucomannan/Panax notoginseng composite sponge and evaluate its physical and chemical properties and biocompatibility. METHODS: Oxidized glucomannan was prepared by sodium periodate oxidation. Panax notoginseng saponins were extracted from Panax notoginseng powder. Carboxymethyl chitosan and oxidized glucomannan were first added as mixed raw materials, and then added separately to account for mixing system 2%, 6%, 10% of Panax notoginseng saponins. Freeze-drying method was used to prepare carboxymethyl chitosan/oxidized glucomannan/Panax notoginseng composite sponge. Scanning electron microscope was utilized to observe the microstructure of the composite sponge. Porosity, steam permeability, total saponin release rate of Panax notoginseng, cell compatibility, antibacterial properties and acute systemic toxicity were detected. RESULTS AND CONCLUSION: (1) Scanning electron microscope showed that there were many pores in the composite sponge that were full and evenly distributed. The total saponins of Panax notoginseng were stably and evenly attached to the inner walls and joints of the pores of the sponge. (2) As the proportion of total saponins of Panax notoginseng increased, the water absorption rate, porosity, and steam permeability gradually increased. (3) The vast majority of the total saponins of Panax notoginseng in the three kinds of composite sponges could be efficiently released in 13 hours in vitro. (4) Within 3 days after in vitro culture, the proliferation rate of fibroblasts was more than 95%. (5) Three kinds of compound sponges have an inhibitory effect on E. coli and Staphylococcus aureus, but do not have acute systemic toxicity. (6) The results show that carboxymethyl chitosan/oxidized glucomannan/Panax notoginseng composite sponge is expected to be an excellent medical chronic wound dressing.

Attention should be paid to the exposure risk of patients with chronic wounds on the way to hospital during corona virus disease 2019 epidemic prevention and control / 中华烧伤杂志

Statistics show that 76.74% (4 688) of 6 109 patients with chronic wounds are those over 50 years of age; the proportion of patients with underlying diseases in all age groups above 50 years ranges from 78.25% to 100.00%; among the underlying diseases of chronic wound patients, the top four diseases are diabetes mellitus , cardiovascular and cerebrovascular diseases, hypertension, and respiratory diseases. The above underlying diseases and ages of patients are the susceptibility factors of corona virus disease 2019 released by National Health Commission of China. It is an unavoidable fact that patients with chronic wounds have to go to the hospital for treatment prescribed by the physician. At the same time, we found that there were not a few patients who go far afield because of various reasons when go to the hospital for treatment. During the period of epidemic prevention and control, this kind of "go far afield" style of seeking medical treatment may increase the exposure risk during transportation. Accordingly, we convened 36 wound care clinics in different regions in Shanghai to implement the "Five Measures" to encourage patients with chronic wounds to seek medical treatment proximately. The principle of this operation is that when seeking medical treatment, trying our best to reduce as much as possible the transportation distance for patients with chronic wounds to minimize the exposure risk during the epidemic period and eventually support the epidemic prevention and control campaign.

New opportunity of management strategy of diagnosis and treatment of chronic wound: emerging technology / 中华烧伤杂志

Along with the development of society and the change of disease spectrum, chronic wound is gradually becoming the core of burn and plastic surgery field. Although there have been some progresses in the diagnosis and treatment technology, the management strategy of chronic wound is still in the traditional mode stage. The development of internet of things, cloud computing, big data, artificial intelligence, and other emerging technologies is changing with each passing day, and they have rapidly penetrated into the health care field. To explore the application prospect of emerging technology in the diagnosis and treatment management of chronic wound and to plan its strategy and mode in the diagnosis and treatment of chronic wound can further promote development of discipline of burns.

Chronic wound biofilms: diagnosis and therapeutic strategies / 中华医学杂志(英文版)

Objective@#To review the diagnosis of chronic wound biofilms and discuss current treatment approaches.@*Data sources@#Articles included in this review were obtained from the following databases: Wanfang, China National Knowledge Infrastructure, PubMed, and the Web of Science. We focused on research published before August 2019 with keywords including chronic wound, biofilm, bacterial biofilms, and chronic wound infection.@*Study selection@#Relevant articles were selected by carefully reading the titles and abstracts. Further, different diagnosis and clinical treatment methods for chronic wound biofilm were compared and summarized from the selected published articles.@*Results@#Recent guidelines on medical biofilms stated that approaches such as the use of scanning electron microscopy and confocal laser scanning microscopy are the most reliable types of diagnostic techniques. Further, therapeutic strategies include debridement, negative pressure wound therapy, ultrasound, antibiotic, silver-containing dressing, hyperbaric oxygen therapy, and others.@*Conclusion@#This review provides the identification and management of biofilms, and it can be used as a tool by clinicians for a better understanding of biofilms and translating research to develop best clinical practices.

Progress in the treatment of chronic wound and discussion on the integrated surgical wound treatment mode / 中华烧伤杂志

With the change of disease spectrum and the progress in the aging of society, chronic wound has gradually become one of the major diseases that threaten human health, and also one of the major economic burdens of family and society. According to the different etiology, the pathogenesis of chronic wound is different, including both systemic factors and local factors. The treatment of chronic wound is a multi-disciplinary integrated treatment process, including internal medicine treatment, surgical treatment, vascular interventional therapy, platelet-rich plasma treatment, and biological therapy, etc. Each treatment regimen has its own indications and pros and cons. To make a treatment regimen, a combination of a variety of options should be chosen according to the patient′s wound conditions. The traditional chronic wound treatment mode is multi-disciplinary team (MDT) treatment mode, which requires the participation of surgeons from multiple departments such as intervention department, plastic surgery department, orthopedics department, etc., and it is also the mainstream mode for treating chronic wound in western countries. According to the domestic medical situation and the experience of our department, we put forward the integrated surgical wound treatment (ISWT) mode, that is to integrate multiple surgical techniques of wound treatment. Compared with the traditional MDT treatment mode, to apply the ISWT mode can make a more reasonable treatment plan, improve the efficiency of diagnosis and treatment, shorten the hospitalization period, and improve the diagnosis and treatment ability of the team. With the increasing incidence of chronic wound, the ISWT mode needs to be further explored and improved, and the team needs more specialized experts to join in.

Bacterial biofilm and chronic wound infection / 中华烧伤杂志

Bacteria usually colonize, reproduce, and grow aggressively on chronic wounds in the form of biofilm. Different from free bacteria, bacteria in biofilm exhibit unique mechanism in epigenetics and biological behavior, especially in resistance to antibiotics and host immunity. In this article, we introduce the composition and structural function of bacterial biofilm, expound the drug-resistance mechanism of bacterial biofilm, discuss the clinical characteristics of bacterial biofilm infection wound and the diagnosis method of biofilm, and analyze the treatment strategy for bacterial biofilm. It is suggested that clinicians should pay more attention to bacterial biofilm infection and advocate in-depth study of bacterial biofilm in order to improve the quality of managing chronic wounds.

Clinical therapeutic observation on sequential treatment of chronic wounds with repeated recurrence of hidradenitis suppurativa in buttocks / 中华烧伤杂志

Objective@#To observe the clinical effects of sequential treatment with extensive lesion resection, vacuum sealing drainage (VSD) combined with irrigation of oxygen-loaded fluid, and tissue transplantation on hidradenitis suppurativa (HS) in buttocks which recurred after multiple surgeries.@*Methods@#From January 2012 to March 2017, 15 male patients (aged 26-53 years) hospitalized in our burn ward with Hurley′s stage Ⅲ HS in the buttocks recurred after 2-5 operations who met the inclusion criteria were enrolled in the prospective self pre- and post-control study. After extensive resection of the lesion, continuous VSD combined with intermittent irrigation of oxygen-loaded fluid was given, with negative pressure of -16.7 kPa and flow rate of pure oxygen of 1.0 L/min. After 7 days of treatment with VSD combined with irrigation of oxygen-loaded fluid, the negative pressure device was removed and autologous posterior thigh split-thickness skin grafts and/or local flaps were transplanted to repair the wounds. Six patients were performed with split-thickness skin grafting, 4 patients with local flap transplantation, and 5 patients with split-thickness skin grafting together with local flap transplantation. The donor sites of local flaps were sutured directly or transplanted with autologous posterior thigh split-thickness skin grafts, and the donor sites of split-thickness skin grafts with autologous thin split-thickness scalp. The wound tissue or wound granulation tissue was collected before lesion resection and 7 days after treatment with VSD combined with irrigation of oxygen-loaded fluid respectively for bacterial culture and detecting of the content of tumor necrosis factor-alpha (TNF-α) by enzyme-linked immunosorbent assay. Survival of skin grafts and flaps after operation was observed, hospitalization time was recorded, and recurrence and complications of HS were followed up. Data were processed with paired sample t test.@*Results@#Bacterial culture result of wound tissue before lesion resection was positive in all patients, mainly Staphylococcus, Streptococcus, Proteus mirabilis, and anaerobic bacteria, etc., while that of wound granulation tissue after 7 days of treatment with VSD combined with irrigation of oxygen-loaded fluid was negative. The content of TNF-α in wound granulation tissue after 7 days of treatment with VSD combined with irrigation of oxygen-loaded fluid was (10.1±2.9) pg/L, significantly lower than (73.6±5.6) pg/L before lesion resection (t=33.47, P<0.01). The skin grafts and/or flaps of 15 patients survived post operation, and the wounds were healed. The patients were hospitalized for 17-31 days. During follow-up of 1 to 5 years, no recurrence of HS occurred in operative site of buttocks of 15 patients, but 1 patient had ulceration of healed perianal incision caused by high anal fistula and was healed after treatment.@*Conclusions@#Sequential treatment with extensive resection, VSD combined with irrigation of oxygen-loaded fluid, and tissue transplantation can thoroughly remove HS lesions in the buttocks and improve the condition of wound bed for skin acceptance after debridement, which is conducive to the cure of HS in the buttocks which has undergone multiple operations but still recurs after operation.

WoundCareLog APP - A new application to record wound diagnosis and healing / 中华创伤杂志(英文版)

The incidence of chronic wounds has been increasing over the past 20 years. However, the standardized diagnosis and treatment practice of chronic refractory wounds have not been established. In addition, the properties of the wound are characterized by morphology and thus correct description of the wound in medical history collection plays a vital role, which directly affects the definitive diagnosis. To develop more accurate format of clinical history record which can correctly reflect a patient's course and treatment progress, and to standardize the medical history record of chronic refractory wounds, at the national or regional level, we designed the WoundCareLog APP. It acts as a recording and communication tool for wound healing specialists at all levels of medical institutions in China. The WoundCareLog APP is fully compatible to meet the criteria and requirements of conventional medical records by embedding 9 modules. In addition, the demands for morphological description of wounds in wound healing diagnosis and treatment have been fulfilled by enroll of digital imaging technology to overcome the inadequacies of traditional medical history records.

Exploration into the medical model of medical alliances specialized in chronic wounds / 中华医院管理杂志

This paper rounded up the resources and advantages leveraged by the hospital′s burn and plastic surgery department as a national key discipline. The department practiced medical services for chronic wounds in the regional hierarchical medical system for chronic wounds to promote the development medical alliances. IT development of the hierarchical medical network has achieved disease information sharing, namely centralized patients screening, patients referral confirmation, mutual recognition of test results, online consultation and treatment follow-up. Other achievements include standardization of medical criteria for chronic wounds by means of effective integration of resources imbalance within the network and improvement of internal medical regulations; elevation of primary level innovation capacity and services by means of high-caliber specialists working at primary institutions and mutual exchanges in between; effective medical cost control via guarantee system building, thus enhancing the public benefit nature of public hospitals. The paper also probed into problems and solutions expected in the way of promoting the chronic wound hierarchical medical system.

Application value of endoscope in probing chronic wound with sinus tract in clinic / 中华烧伤杂志

Objective@#To explore the application value of endoscope in probing the chronic wound with sinus tract in clinic.@*Methods@#Twenty-eight chronic wounds with sinus tracts from 27 patients conforming to the inclusion criteria admitted to Outpatient Department of Wound Healing Center of Ruijin Hospital from December 2017 to March 2018 were investigated in a prospective and self-controlled trial. After being cleaned, the diameter of the opening of sinus tract was measured with a rule. A probe was used to measure the depth of a sinus tract according to the touch from the probe extremity in operation, and to measure the depth of a sinus tract that could be observed with naked eyes with the help of a pair of hemostatic forceps. Five minutes later, a probe was inserted deeply into the sinus tract to measure the depth under the endoscopic view combined with touch from the probe extremity in operation. Afterwards, the sinus tract was observed with endoscope, and the depth of the tract which could be observed under the endoscopic view was measured using a probe inserted deeply into the sinus tract. After completion of the above exploration, the sinus tract was infused with contrast agent Omnipaque 350 and scanned by computed tomography (CT) later to obtain its depth. The following indicators were calculated: the ratio of the depth of the sinus tract measured by CT to the diameter of the opening of the sinus tract (hereinafter referred to as the depth/diameter ratio of the sinus tract), the deviation rate comparing the depth of the sinus tract measured by conventional method (measured by probe only) and by endoscope (measured by probe under the endoscope view) with the depth of the sinus tract measured by CT (hereinafter referred to as the deviation rate of the measured depth of the sinus tract), the deviation rate comparing the depth of the sinus tract that could be observed measured by conventional method and by endoscope with the depth of the sinus tract measured by CT (hereinafter referred to as the deviation rate of the depth of the sinus tract that could be observed). Data were processed with paired t test. Pearson correlation analysis was applied to analyze the correlation between the depth/diameter ratio of the sinus tract and the deviation rate of the measured depth of the sinus tract and the deviation rate of the depth of the sinus tract that could be observed by conventional method and by endoscope.@*Results@#The depth/diameter ratio of the sinus tract of this group of wounds was 1-32 (8±7). The deviation rate of the measured depth of the sinus tract and the deviation rate of the depth of the sinus tract that could be observed by conventional method were (19±14)% and (79±18)%, respectively, both obviously larger than (9±9)% and (25±25)% by endoscope (t=3.837, 13.626, P<0.01). Positive correlation existed between the depth/diameter ratio of the sinus tract and the deviation rate of the measured depth of the sinus tract by conventional method, and between the depth/diameter ratio of the sinus tract and the deviation rate of the depth of the sinus tract that could be observed by conventional method and by endoscope (r=0.514, 0.585, 0.651, P<0.01). However, there was no obvious correlation between the depth/diameter ratio of the sinus tract and the deviation rate of the measured depth of the sinus tract by endoscope (r=0.113, P>0.05).@*Conclusions@#Compared with the conventional method, application of endoscope is able to get more accurate data of chronic wounds with sinus tracts and observe the wounds with wider range.

Qualitative research in work experience of specialty nurses for chronic wounds / 现代临床护理

Objective To explore the work experience of specialty nurses for chronic wounds. Methods Five specialty nurses for chronic wounds were enrolled and given semi-structured in-depth interviews.The acquired data were analyzed with the 7-step analysis of Colaizzi. Result Three themes were extracted including responsibility and sense of mission, problems, gains and growth. Conclusions The responsibility is fundamental for the specialty nurses to hold their firm belief in their nursing career.They grow and achieve in their occupation by nursing the patients with chronic wounds.The nursing administration should understand the problems and help the work of chronic wounds specialists,take measures to clarify the responsibilities and roles of specialists in chronic wound nursing and provide necessary resource to support.

Reliability and validity of Chinese version of Symptom Intrusiveness Rating Scale among patients experiencing pain associated with chronic wound / 中国实用护理杂志

Objective To translate the Symptom Intrusiveness Rating Scale and test its reliability and validity. Methods The scale was modified based on translation, back-translation and cross-culture adaptation. Ninety-five patients were recruited from wound&stoma clinic of one upper first-class hospital. the questionnaire were tested by internal reliability and test-retest for reliability and exploratory factor analysis and confirmatory factor analysis for validity. Results The coefficient of Cronbach α was 0.823 and the retest reliability was 0.893. The content validity index was 0.871. Three factors, which were F1:functional status, F2: social relations, F1: mental health, were extracted by exploratory factor analysis and they could explain 78.53% of total variance. Confirmatory factor analysis indicated a good model and fit indices c 2/df=1.061, GFI=0.903, RMSEA=0.065, NFI=0.932, IFI=0.996. The Chinese version of SyIRS was moderately related with SF-36v2 physical subscales (r=-0.42, P<0.01), and mental subscales (r=-0.45, P<0.01). Conclusions The Chinese version of Symptom Intrusiveness Rating Scale is a reliable and valid instrument, which is applicable to assess the patient’s quality of life associated with chronic wound related pain.