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Braz. J. Pharm. Sci. (Online) ; 58: e18688, 2022. tab, graf
Article in English | LILACS | ID: biblio-1364425


Abstract Hydrogels are interesting for use in the treatment of topical wounds due to their virtually zero toxicity, and capacity for extended release of pharmaceuticals. Silver sulfadiazine (SSDZ) is the drug of choice in the treatment of skin burns. The aim of the study was to determine cytotoxicity, antimicrobial activity and stability of a PVA hydrogel with integrated silver sulfadiazine. SSDZ-hydrogels were prepared using 10% (w/w) PVA (either 89% or 99% hydrolyzed) and 1% (w/w) silver sulfadiazine. Cellular viability was assessed via MTS assays, antimicrobial activity via disk-diffusion and accelerated stability tests were carried out with analysis at 0, 30, 60, 90 and 180 days of storage at 40 ± 2 °C and a relative humidity of 75 ± 5%. The parameters evaluated included organoleptic characteristics, moisture, swelling ability, mechanical strength, FTIR, XRD, TGA and DSC, and silver release patterns via XRD and potentiometry. Cell viability tests indicated some cytotoxicity, although within acceptable levels. After 90 days of storage, SSDZ hydrogel samples exhibited a brown coloration, probably due to the formation of Ag or Ag2O nanoparticles. The SSDZ-loaded hydrogels suffered visual and physical changes; however, these changes did not compromise its use as occlusive wound dressings or its antimicrobial properties.

Silver Sulfadiazine/pharmacology , Pharmaceutical Preparations/analysis , Hydrogels/analysis , Skin/injuries , Wounds and Injuries/classification , Spectroscopy, Fourier Transform Infrared , Reference Parameters/classification
Rev. chil. endocrinol. diabetes ; 15(1): 29-34, 2022. ilus
Article in Spanish | LILACS | ID: biblio-1359364


Los cuidados actuales de la diabetes incluyen altos niveles de tecnología y los pacientes utilizan diferentes dispositivos que pueden ayudar en su control metabólico, pero pueden impactar negativamente en su piel. Sensores de glucosa como el Freestyle, Dexcom, el Enlite de Medtronic y los sistemas de infusión continua de insulina contienen diferentes productos químicos que están en contacto directo con la piel del paciente y pueden causar una dermatitis irritativa o de contacto alérgica. Las lesiones incluyen eczema, prurito, heridas, cicatrices y cambios en la pigmentación de la piel. Los productos químicos involucrados que pueden ocasionarlas son el isobornil acrilato, N, N- dimetilacrilamida, etil cianoacrilato y colophonium, forzando a los pacientes a cambiar los sitios de infusión, el set de infusión o el sensor mismo más pronto de lo esperado, para reducir el nivel de daño en la piel. Existe gran número de productos que permiten proteger la piel y reducir el contacto de la piel con la cánula de la bomba o el sensor. Para reducir o prevenir el daño existen productos como cremas o spray y parches de hidrocoloide que actúan como barrera y existen técnicas para aplicar y retirar cuidadosamente los parches y adhesivos de los dispositivos. Una vez que las lesiones se han producido, el tratamiento incluye pomadas y a veces corticoides tópicos y/o antibióticos. Para prevenir o reducir el daño de la piel asociado al sensor y uso de la bomba de insulina, la industria que los produce debería incluir la información en relación a los productos químicos incluidos en cada dispositivo.

Diabetes care nowadays includes a high level of technology and patients use different devices which can help them in their glycemic control, but can have a negative impact on their skin. Glucose sensors such as Freestyle, Dexcom, Medtronic Enlite and also continuous subcutaneous insulin infusion systems contain different chemical products which are in direct contact with the patient's skin and can cause irritative or allergic contact dermatitis. Lesions include eczema, pruritus, wounds, scars and changes in skin pigmentation. The chemical products which can induce them are isobornyl acrylate, N, N- dimethylacrylamide, ethyl cyanoacrylate and colophonium, forcing patients to change the infusion site, set or the sensor itself, earlier than expected, in order to reduce the level of skin damage. There are a number of products which can protect the skin and reduce it's contact with the pump cannula or the sensor. To reduce or prevent damage, we have products such as barrier cream or spray films and hydrocolloid blister plasters and actions such as careful application and removal of device's patches and adhesives. Once lesions are established, treatment includes ointments and sometimes topical steroids and/ or antibiotics. In order to prevent or reduce skin damage related to sensor and insulin pump use, the manufacturers should include the information related to the chemicals included in each device.

Humans , Skin Diseases/etiology , Insulin Infusion Systems/adverse effects , Skin/injuries , Blood Glucose Self-Monitoring/adverse effects , Adhesives/adverse effects , Dermatitis, Allergic Contact/etiology , Glycemic Control/adverse effects
J. coloproctol. (Rio J., Impr.) ; 41(4): 367-374, Out.-Dec. 2021. tab, ilus
Article in English | LILACS | ID: biblio-1356445


Introduction: The prolonged or incorrect use of facial masks, respirators and glasses or visors results in friction, pressure and shear forces that constantly act on the facial skin, leading to lesions and dermatitis. Objective: To develop and validate algorithms to guide health professionals in the correct use of personal protective equipment (PPE) and indicate preventive measures against skin injuries caused by inappropriate use during the COVID-19 pandemic. Methods: For the develoment of the algorithms, an integrative literature review was performed using the following databases: PubMed, SciELO, and LILACS. The algorithms were evaluated by 59 health professionals (nurses, doctors, and physiotherapists), using the Delphi technique. A content validity index (CVI) was used for the statistical analysis. Results: The experts classified the items of the algorithms from fully inadequate to fully adequate in the first round of consultations, and from partially adequate to fully adequate in the second round. The overall CVI values were of 0.83 and 1.0 in the first and second rounds respectively. Conclusion: The algorithms validated by the expert panel can be used by health professionals when donning and doffing PPE, and to prevent the facial-skin lesions caused by their use. (AU)

Humans , Male , Female , Algorithms , Personal Protective Equipment/adverse effects , COVID-19/prevention & control , Skin/injuries
J. coloproctol. (Rio J., Impr.) ; 41(4): 383-392, Out.-Dec. 2021. ilus
Article in English | LILACS | ID: biblio-1356429


Objectives: The present study aimed to develop an application to guide healthcare professionals on using personal protective equipment (PPE) during the COVID-19 pandemic and prevent and treat skin lesions caused by these devices. Methods: This is a study on technological production. The framework for application development consisted in the following phases: Phase 1-"Design: identification of application development requirements;" Phase 2-"Application prototype development": including an integrative literature review in major databases; Phase 3-"Application construction": elaboration of the decision tree, algorithm, database structuring, and software development; Phase 4-"Transition": application functionality test. Result: Our application Simplifica EPI is an innovative technology; this software is a tool to assist healthcare professionals in using PPE. In addition, it describes how to prevent and care for skin lesions caused by PPE. Simplifica EPI has 25 screens and 32 images. It will be available on the Google Play Store after its registration with the Brazilian National Institute of Industrial Property. Conclusions: After an integrative literature review, the application Simplifica EPI was developed as an innovative technology with great potential for use by healthcare professionals. (AU)

Mobile Applications , Personal Protective Equipment , COVID-19/prevention & control , Skin/injuries , Wounds and Injuries/prevention & control
J. coloproctol. (Rio J., Impr.) ; 41(3): 316-324, July-Sept. 2021. tab, graf
Article in English | LILACS | ID: biblio-1346415


Objective: To build and validate a flowchart for the prevention and treatment of intestinal peristomal skin complications. Method: For the construction of the algorithms, a systematic reviewwas carried out in health sciences databases comprising the last 10 years. The evaluation of the algorithms was carried out by 38 nurses. For the validation of the algorithms, theDelphi technique was used. The statistical analysis used was the content validity index and the Cronbach alpha coefficient. The questionnaire was sent by e-mail and in person after approval by the Ethics and Research Committee. Results: In the first evaluation of the algorithms, there was no agreement among the experts. However, after making the corrections suggested by the evaluators, the algorithms were resent, with a 100% consensus among the evaluators. The questions used to validate the algorithms contributed favourably to the internal consistency and content validation of the instrument, since the respective Cronbach alpha was 0.9062 and the global content validity index (g-CVI) was 0.91 in the first validation and 1.0 in the second validation. Conclusion: After an integrative literature review, the flowcharts were built and validated by a professional with experience in the area, showing 100% agreement among the experts in the second evaluation. (AU)

Humans , Skin/injuries , Algorithms , Software Design , Surgical Stomas/adverse effects , Delphi Technique , Skin Care/standards
Nursing (Säo Paulo) ; 24(277): 5775-5784, jun.2021.
Article in Portuguese | LILACS, BDENF | ID: biblio-1253487


Objetivo: identificar fatores associados a lesões de pele decorrentes de cirurgias urológicas robóticas versus convencionais em adultos/idosos. Método: revisão integrativa, etapas: Construção do protocolo de pesquisa; Formulação da pergunta - prática baseada em evidência, utilizando o acrônimo PICO; Definição dos descritores das estratégias de busca em cada uma das bases de dados selecionadas, que deviam ser variadas; Determinação, seleção e revisão dos critérios de inclusão e exclusão; Avaliação crítica dos estudos; Coleta de dados utilizando instrumentos que analisassem em pares; e Síntese dos resultados/dados agrupados por semelhança. Resultados: a estratégia de busca gerou 207 artigos. Resultando para análise final 7 artigos. Conclusão: são necessários novos estudos clínicos, que abordem os prejuízos e benefícios relacionados ao posicionamento cirúrgico robótico e abertos, direcionando assim, intervenções de enfermagem acuradas aos pacientes sob maior risco.(AU)

Objective: to identify factors associated with skin lesions resulting from robotic versus conventional urological surgery in adults / elderly. Method: integrative review, stages: Construction of the research protocol; Formulation of the question - evidence-based practice, using the acronym PICO; Definition of search strategy descriptors in each of the selected databases, which should be varied; Determination, selection and review of inclusion and exclusion criteria; Critical evaluation of studies; Data collection using instruments that analyzed in pairs; and Summary of results / data grouped by similarity. Results: the search strategy generated 207 articles. Resulting in 7 articles for final analysis. Conclusion: further clinical studies are needed, addressing the losses and benefits related to robotic and open surgical positioning, thus directing accurate nursing interventions to patients at higher risk.(AU)

Objetivo: identificar los factores asociados a las lesiones cutáneas resultantes de la cirugía urológica robótica versus convencional en adultos / ancianos. Método: revisión integradora, etapas: construcción del protocolo de investigación; Formulación de la pregunta - práctica basada en evidencia, utilizando el acrónimo PICO; Definición de descriptores de estrategias de búsqueda en cada una de las bases de datos seleccionadas, que deben ser variadas; Determinación, selección y revisión de criterios de inclusión y exclusión; Evaluación crítica de estudios; Recolección de datos utilizando instrumentos que se analizaron por parejas; y Resumen de resultados / datos agrupados por similitud. Resultados: la estrategia de búsqueda generó 207 artículos. Resultando en 7 artículos para el análisis final. Conclusión: se necesitan más estudios clínicos que aborden las pérdidas y beneficios relacionados con el posicionamiento quirúrgico robótico y abierto, dirigiendo así intervenciones de enfermería precisas a los pacientes de mayor riesgo.(AU)

Humans , Skin/injuries , Robotic Surgical Procedures , Perioperative Nursing , Data Collection
Online braz. j. nurs. (Online) ; 20: e20216481, 05 maio 2021. ilus
Article in English, Spanish, Portuguese | LILACS, BDENF | ID: biblio-1255197


OBJETIVO: Avaliar a efetividade do ângulo de fase medido por bioimpedância elétrica como preditor para avaliação de cicatrização em pacientes com lesões cutâneas ou risco de desenvolvê-las. MÉTODO: Revisão sistemática operacionalizada segundo metodologia Joanna Briggs Institute, recomendações checklist PRISMA. A amostra contemplou pacientes acima de 18 anos com lesões cutâneas variadas. RESULTADOS: Quatro estudos demonstraram o uso do ângulo de fase para o desfecho cicatrização e um estudo apontou uma possível relação do ângulo de fase com previsão de surgimento e risco de lesão por pressão. Foram obtidos pontos de cortes para determinadas lesões. Por não ter sido possível metanálise, se propõe a realização de estudos primários sobre o tema deste estudo. CONCLUSÃO: Apesar de serem poucos os trabalhos científicos com o tema proposto, foi possível demonstrar evidência moderada para o desfecho "cicatrização" e baixa para o desfecho "risco de lesão". Registro no PROSPERO com número CRD420201549.

OBJECTIVE: To assess the effectiveness of the phase angle measured by electrical bioimpedance as a predictor for healing evaluation in patients with skin lesions or risk of developing them. METHOD: A systematic review operationalized according to Joanna Briggs Institute methodology, PRISMA checklist recommendations. The sample included patients over 18 years old with varied skin lesions. RESULTS: Four studies demonstrated the use of phase angle for the healing outcome and one study indicated a possible relationship between phase angle and the prediction of the onset and risk of pressure ulcer. Cut-off points were obtained for certain lesions. As it was not possible to perform a meta-analysis, it is proposed to conduct primary studies on the theme of this study. CONCLUSION: Although there are few scientific papers with the theme proposed, it was possible to demonstrate moderate evidence for the "healing" outcome and low evidence for the "risk of lesion" outcome. Registration in PROSPERO with number CRD420201549.

OBJETIVO: Evaluar la efectividad del ángulo de fase medido por bioimpedancia eléctrica como predictor para la evaluación de la cicatrización en pacientes con lesiones cutáneas o riesgo de desarrollarlas. MÉTODO: Revisión sistemática realizada según la metodología del Joanna Briggs Institute, recomendaciones checklist PRISMA. La muestra incluyó a pacientes mayores de 18 años con diferentes lesiones cutáneas. RESULTADOS: Cuatro estudios demostraron el uso del ángulo de fase para el resultado cicatrización y un estudio señaló una posible relación entre el ángulo de fase y la previsión de la aparición y el riesgo de lesión por presión. Se obtuvieron puntos de corte para ciertas lesiones. Como no fue posible realizar un metaanálisis, se propone realizar estudios primarios sobre el tema de este estudio. CONCLUSIÓN: Aunque hay pocos estudios científicos sobre el tema propuesto, fue posible demostrar evidencia moderada para el resultado "cicatrización" y baja para el resultado "riesgo de lesión". Inscripción en PROSPERO con número CRD420201549.

Humans , Skin/injuries , Wound Healing , Electric Impedance , Pressure Ulcer
Rev. latinoam. enferm. (Online) ; 29: e3500, 2021. tab
Article in English | LILACS, BDENF | ID: biblio-1347620


Objective: to estimate the incidence of medical adhesive-related skin injury in the peripheral venous catheter fixation region in critical cancer patients, to identify risk factors, and to establish a risk prediction model for its development. Method: a prospective cohort study with a sample of 100 adult and aged patients hospitalized in an intensive care unit. The data were analyzed using descriptive, bivariate and multivariate statistics with Cox regression. Results: the incidence of medical adhesive-related skin injury was 31.0% and the incidence density was 3.4 cases per 100 people-days. The risk factors were as follows: alcoholism, smoking habit, hospitalization due to deep vein thrombosis, acute respiratory failure, immediate postoperative period, heart disease, dyslipidemia, use of antiarrhythmics, blood transfusion, friction injury, pressure injury, turgor, edema, hematoma, petechiae, low values in the Braden scale, clinical severity of the patient, elasticity, moisture, texture and color. The predictive model consisted in the following: decreased skin turgor, presence of hematoma and edema. Conclusion: medical adhesive-related skin injury at the peripheral venous catheter insertion site has a high incidence in critical cancer patients and is associated with decreased turgor, presence of hematoma and edema, evidence that can support the clinical practice.

Objetivo: estimar la incidencia de lesión cutánea relacionada con adhesivos médicos en la región de fijación del catéter venoso periférico en pacientes oncológicos críticos, identificar factores de riesgo y establecer un modelo de predicción de riesgo para su desarrollo. Método: cohorte prospectiva con una muestra de 100 pacientes adultos y adultos mayores ingresados en una unidad de terapia intensiva. Los datos se analizaron mediante estadística descriptiva, bivariada y multivariada con regresión de Cox. Resultados: la incidencia de lesión cutánea relacionada con adhesivos médicos fue del 31,0% y la densidad de incidencia fue de 3,4 casos por 100 personas-día. Los factores de riesgo fueron: alcoholismo, tabaquismo, hospitalización por trombosis venosa profunda, insuficiencia respiratoria aguda, postoperatorio inmediato, cardiopatía, dislipidemia, uso de antiarrítmicos, transfusión de sangre, lesión por fricción, lesión por presión, turgencia, edema, hematoma, petequias, bajos valores en la escala de Braden, gravedad clínica del paciente, elasticidad, humedad, textura y coloración. El modelo predictivo estuvo compuesto por: disminución de la turgencia cutánea, presencia de hematomas y edema. Conclusión: la lesión cutánea relacionada con adhesivos médicos en el sitio de inserción del catéter venoso periférico tiene una alta incidencia en pacientes oncológicos críticos y se asocia a disminución de la turgencia, presencia de hematoma y edema, dicha evidencia puede servir de base para la práctica clínica.

Objetivo: estimar a incidência de lesão de pele relacionada a adesivo médico em região de fixação de cateter venoso periférico em pacientes oncológicos críticos, identificar fatores de risco e estabelecer modelo de predição de risco para o seu desenvolvimento. Método: coorte prospectiva com amostra de 100 pacientes adultos e idosos internados em unidade de terapia intensiva. Os dados foram analisados por estatística descritiva, bivariada e multivariada com regressão de Cox. Resultados: a incidência da lesão de pele relacionada a adesivo médico foi de 31,0% e a densidade de incidência foi de 3,4 casos por 100 pessoas-dia. Os fatores de risco foram: etilismo, tabagismo, internação por trombose venosa profunda, insuficiência respiratória aguda, pós-operatório imediato, cardiopatia, dislipidemia, uso de antiarrítmico, hemotransfusão, lesão por fricção, lesão por pressão, turgor, edema, hematoma, petéquias, valores baixos na escala de Braden, gravidade clínica do paciente, elasticidade, umidade, textura e coloração. Compuseram o modelo preditivo: turgor de pele diminuído, presença de hematomas e edema. Conclusão: a lesão de pele relacionada a adesivo médico em sítio de inserção de cateter venoso periférico tem elevada incidência em pacientes oncológicos críticos e está associada ao turgor diminuído, presença de hematoma e edema, evidências essas que podem embasar a prática clínica.

Humans , Adult , Aged , Skin/injuries , Adhesives/adverse effects , Incidence , Prospective Studies , Risk Factors , Intensive Care Units , Neoplasms/complications
Arq. bras. med. vet. zootec. (Online) ; 72(6): 2211-2222, Nov.-Dec. 2020. tab, graf, ilus
Article in Portuguese | LILACS, VETINDEX | ID: biblio-1142323


O objetivo deste trabalho foi avaliar macro e microscopicamente a atividade cicatrizante da Sphagneticola trilobata em feridas cutâneas induzidas em ratos, a partir da aplicação de creme contendo extrato hidroalcoólico bruto de folhas da planta. A análise fitoquímica apresentou terpenos e flavonoides como compostos majoritários. Sessenta ratos foram divididos em três grupos experimentais (n=20): grupo tratado (GT), grupo controle (GC) e grupo controle absoluto (GCA). Quatro feridas excisionais de 0,8cm de diâmetro foram realizadas no dorso dos animais, tratadas diariamente e avaliadas nos tempos três, sete, 14 e 21 dias de pós-operatório (PO) quanto à contração e à avaliação macroscópica, morfo-histológica e morfo-histométrica. Macroscopicamente, não houve diferença estatística na contração das feridas entre os grupos testados. Na avaliação morfológica e na morfométrica, o GT apresentou menor concentração de células inflamatórias, maior e melhor preenchimento do tecido de granulação pelas fibras colágenas e melhor vascularização das feridas. Não houve diferença entre o GC e o GCA. Conclui-se que o creme à base do extrato hidroalcoólico bruto das folhas de Sphagneticola trilobata contribui positivamente para o processo de cicatrização das feridas em pele de ratos.(AU)

The objective of this work was to macro and microscopically evaluate the healing activity of Sphagneticola trilobata in rat-induced skin wounds by applying cream containing crude hydroalcoholic extract from plant leaves. The phytochemical analysis showed terpenes and flavonoids as major compounds. Sixty rats were divided into three experimental groups (n=20): treated group (GT), control group (CG) and absolute control group (GCA). Four 0.8cm diameter excision wounds were performed on the back of the animals, treated daily and evaluated at the three, seven, 14 and 21 postoperative days (PO) for contraction, macroscopic, morphologic and morphologic evaluation. The TG presented smaller scar area at 21 postoperative days (P<0.05). In the morphological and morphometric evaluation, the WG presented lower inflammation, greater and better filling of granulation tissue by collagen fibers and better wound vascularization. There was no difference between GC and GCA. It was concluded that the cream based on the crude hydroalcoholic extract of Sphagneticola trilobata leaves contribute positively to the healing process of the skin wounds of rats.(AU)

Animals , Rats , Skin/injuries , Wounds and Injuries/rehabilitation , Neovascularization, Physiologic , Asteraceae/chemistry , Plants, Medicinal , Phytotherapeutic Drugs
Pesqui. vet. bras ; 40(11): 914-921, Nov. 2020. tab, ilus
Article in English | LILACS, VETINDEX | ID: biblio-1155018


This study aimed to evaluate and compare the effects of ozonized solutions on tissue wound repair in rats. Treatments consisted of ozonized water (GA), 0.9% sodium chloride (GCL), ozonized oil (GO), and 0.2% allantoin cream (GAL). The morphometric evaluation showed that wounds of the GA group presented a higher degree of retraction (p<0.05) at three and eight days of treatment (37.96 and 84.81%, respectively). Picrosirius red staining showed that groups GA and GO presented higher deposition (p<0.05) of type I collagen at 15 and 22 days of treatment, respectively. The neovascularization was higher in wounds of group GO on days 3, 8, and 15 (p<0.05), with higher VEGF immunostaining. (p<0.05). Thus, ozonized water enhances wound retraction and assists in the maturation and remodeling phase, while ozonized oil promotes higher neovascularization during tissue repair and higher deposition of type I collagen from the third week of treatment.(AU)

O objetivo deste estudo foi avaliar e comparar os efeitos de soluções ozonizadas sobre o reparo tecidual de feridas em ratos. Foram realizados os tratamentos: água ozonizada (GA), cloreto de sódio 0,9% (GCL), óleo ozonizado (GO) e creme de alantoína 0,2% (GAL). À avaliação morfométrica, as feridas do grupo GA apresentaram maior grau de retração (p<0,05) aos três e oito dias de tratamento (37,96% e 84,81%, respectivamente). A coloração de picrosirius red mostrou que os grupos GA e GO apresentaram maior deposição (p<0,05) de colágeno do tipo I aos 15 e aos 22 dias de tratamento, respectivamente. Já a variável neovascularização foi maior (p<0,05) nas feridas do grupo GO nos dias três, oito e 15, o que fora ratificado à imunoistoquímica, com maior imunomarcação de VEGF nas feridas do grupo GO (p<0,05). Conclui-se que a água ozonizada potencializa a retração da ferida e auxilia na fase de maturação e remodelamento, enquanto o óleo ozonizado promove maior neovascularização durante o reparo tecidual e maior deposição de colágeno do tipo I a partir da terceira semana de tratamento.(AU)

Animals , Rats , Ozone/therapeutic use , Skin/injuries , Skin/pathology , Wound Healing
Arq. bras. med. vet. zootec. (Online) ; 72(5): 2002-2006, Sept.-Oct. 2020. tab, ilus
Article in English | LILACS, VETINDEX | ID: biblio-1131562


A esporotricose é uma doença emergente e a incidência de esporotricose zoonótica tem aumentado, principalmente no Brasil; a maioria dos casos está relacionada à transmissão de gatos infectados. O diagnóstico definitivo da esporotricose felina é feito por cultura fúngica; no entanto, aguardar o longo período de cultura pode atrasar o início do tratamento. O objetivo deste estudo foi detectar e determinar as espécies de Sporothrix por PCR realizado diretamente das lesões de gatos, provenientes de área endêmica, nos quais a esporotricose fazia parte do diagnóstico diferencial. Um total de 87,1% dos casos foi positivo por PCR ou cultura fúngica para Sporothrix; 81,4% foram confirmados como S. brasiliensis por PCR, 71,4% por isolamento e 65,7% pelos dois métodos. Em conclusão, a análise direta por PCR de lesões sugestivas de esporotricose em gatos é um bom método para confirmar a infecção e determinar as espécies de Sporothrix, garantindo um diagnóstico rápido; esse método tem uma boa concordância com o isolamento fúngico.(AU)

Animals , Cats , Skin/injuries , Sporotrichosis/veterinary , Sporothrix/isolation & purification , Polymerase Chain Reaction/veterinary
Arq. bras. med. vet. zootec. (Online) ; 72(4): 1286-1294, July-Aug. 2020. tab, ilus
Article in Portuguese | LILACS, VETINDEX | ID: biblio-1131465


Cicatrização de ferida é um processo dinâmico, que tem por objetivo restaurar a continuidade do tecido lesionado. No entanto, em alguns casos, é necessário favorecer condições adequadas para viabilizar o processo fisiológico. Neste estudo foram utilizados ratos Wistar, divididos aleatoriamente entre cinco grupos, com 12 animais cada, sendo eles: grupo P (Bidens pilosa L.), grupo mel, grupo Co1 (pomada comercial alopática), grupo Co2 (pomada comercial homeopática) e grupo CT (controle). As lesões foram geradas por incisão com punch de 8mm, sendo tratadas diariamente de forma tópica. Foram eutanasiados quatro animais por grupo, no terceiro, sétimo e 14º dias do experimento, e o material coletado foi armazenado em formalina 10% e encaminhado para processamento histológico. Posteriormente, realizou-se a contagem de leucócitos mononucleares, fibroblastos e neovasos e avaliou-se a arquitetura de fibras colágenas. Os resultados da contagem foram analisados pela ANOVA, seguida pelo teste de Tukey (P<0,05). O modelo experimental proposto neste estudo demonstrou que todos os tratamentos apresentaram potencial cicatrizante, com exceção do mel. A aplicação tópica do creme do extrato de Bidens pilosa L. a 10% apresentou melhor perfil anti-inflamatório; a pomada alopática apresentou boa aderência à superfície da lesão e a pomada homeopática, grande potencial angiogênico, com menor tempo de cicatrização.(AU)

Wound healing is a dynamic process that aims to restore the continuity of injured tissue. However, in some cases it is necessary to favor adequate conditions to enable the physiological process. Wistar rats were randomly divided into 5 groups with 12 animals each, namely: group P (Bidens pilosa L.), group honey, group Co1 (commercial allopathic ointment), group Co2 (commercial homeopathic ointment) and group CT (control). The lesions were generated by an 8mm punch incision and were treated topically daily. Four animals per group were euthanized on the 3rd, 7th and 14th day of the experiment and the collected material was stored in 10% formalin and sent for histological processing, after which mononuclear, fibroblasts and neovascular leukocytes were counted and collagen fiber architecture was evaluated. Counting results were analyzed by ANOVA, followed by Tukey test (p <0.05). The experimental model proposed in this study showed that all treatments had healing potential, except honey. The topical application of 10% Bidens pilosa L. extract cream showed the best anti-inflammatory profile; Allopathic ointment showed good adhesion to the surface of the lesion and homeopathic ointment showed great angiogenic potential with shorter healing time.(AU)

Animals , Rats , Ointments/therapeutic use , Skin/injuries , Bidens/chemistry , Honey , Wound Healing/drug effects , Wounds and Injuries/therapy , Homeopathic Remedy , Collagen , Rats, Wistar/physiology , Phytotherapeutic Drugs , Fibroblasts
Pesqui. vet. bras ; 40(8): 579-588, Aug. 2020. tab, ilus
Article in English | LILACS, VETINDEX | ID: biblio-1135663


Skin diseases in pigs can negatively impact the production. They cause losses related to the death of the affected pigs, to the cost with the treatment, growth retardation and condemnations in the slaughterhouses. This study was developed to determine the frequency and describe the histopathological findings of skin diseases in pigs in different age groups through a retrospective study from 2006 to 2018. A total of 154 conclusive cases were analyzed, including skin restricted diseases (allergic dermatitis, exudative epidermitis, vesicular dermatitis, pityriasis rosea, swinepox, follicular cyst, papilloma and scrotal hemangioma) or skin lesions secondary to systemic diseases (erysipelas, porcine dermatitis and nephropathy syndrome (PDNS), bacterial septicemia and multiple hemorrhages without definite cause). The skin lesions were classified as bacterial (46.1%), viral (26.6%), allergic (12.3%), neoplastic (1.3%) and others (13.6%). Swine erysipelas was the most frequent diagnosis (47/154), followed by PDNS (23/154), allergic dermatitis (19/154) and exudative epidermitis (15/154). Vesicular dermatitis (9/154), pityriasis rosea (9/154), septicemia with cutaneous manifestations (9/154), swinepox (9/154) and multiple hemorrhages without definite cause (7/154) were also observed. Follicular cyst (3/154), hyperkeratosis without definite cause (2/154), papilloma (1/154), and scrotal hemangioma (1/154) were less frequently described. Of the conclusive diagnosis, age was reported in 138 cases, with the highest frequency of skin lesions observed at the inspection process during slaughter (56/138).(AU)

As doenças de pele em suínos podem impactar negativamente a produção. Estas causam perdas relacionadas à morte dos acometidos, a custo com tratamentos, atraso no crescimento e condenações nos frigoríficos. Este trabalho foi desenvolvido para determinar a frequência e descrever os achados histopatológicos das doenças de pele em suínos nas diferentes faixas etárias, através de um estudo retrospectivo no período de 2006 a 2018. Foram analisados 154 casos conclusivos incluindo as doenças restritas a pele (dermatites alérgicas, epidermite exsudativa, dermatite vesicular, pitiríase rósea, varíola suína, cisto folicular, papiloma e hemangioma escrotal) e as secundárias a doenças sistêmicas (erisipela, síndrome dermatite nefropatia suína (SDNS), septicemia bacteriana e hemorragias múltiplas de causa não determinada). Estas foram classificadas em bacterianas (46,1%), virais (26,6%), alérgicas (12,3%), neoplásicas (1,3%) e outras (13,6%). A erisipela suína foi a enfermidade mais diagnosticada (47/154), seguida por SDNS (23/154), dermatite alérgica (19/154) e epidermite exsudativa (15/154). Observamos ainda dermatite vesicular (9/154), pitiríase rósea (9/154), septicemia bacteriana com manifestações cutâneas (9/154), varíola suína (9/154) e hemorragias múltiplas de causa não determinada (7/154). Em menor número, cisto folicular (3/154), hiperqueratose sem causa definida (2/154), papiloma (1/154) e hemangioma escrotal (1/154). Dos casos conclusivos, a idade foi informada em 138 casos, sendo a maior frequência das lesões de pele observadas na linha de inspeção, durante o abate (56/138).(AU)

Animals , Skin Diseases, Viral/pathology , Skin Diseases, Viral/epidemiology , Skin Diseases, Bacterial/pathology , Skin Diseases, Bacterial/epidemiology , Sus scrofa/injuries , Dermatitis/etiology , Dermatitis/pathology , Dermatitis/epidemiology , Skin/injuries , Swine Diseases , Abattoirs
Autops. Case Rep ; 10(2): e2020167, Apr.-June 2020. graf
Article in English | LILACS | ID: biblio-1131810


Long term use of D-penicillamine for Wilson's disease can be associated with many adverse reactions and systemic side effects. We report the case of a 28-year-old male patient diagnosed with Wilson's disease presenting with a serpiginous raised violaceous skin lesion in the anterior aspect of the neck over the last six months and two small papules with central umbilication during the last month. Histopathological examination of skin lesions demonstrated transepidermal perforating channel, and the Verhoeff's-van Gieson stain showed marked increase number of irregular serrated elastic fibers suggesting the diagnosis of D- penicillamine induced elastosis perforans serpiginosa.

Humans , Male , Adult , Penicillamine/adverse effects , Skin Diseases , Elastic Tissue/pathology , Skin/injuries
Int. j. morphol ; 37(4): 1234-1244, Dec. 2019. graf
Article in Spanish | LILACS | ID: biblio-1040118


La cicatrización de la piel es un proceso complejo y organizado que involucra tres fases: inflamatoria, proliferativa y de remodelación. Es indispensable el análisis de este proceso biomolecularmente para investigar y proponer nuevas estrategias terapéuticas que mejoren la cicatrización o promuevan la regeneración. El objetivo de este proyecto fue analizar histológica y biomolecularmente mediante microespectroscopía infrarroja por transformada de Fourier (MFTIR) y su función de mapeo bioquímico, muestras de lesiones excisionales de piel, comparando los cambios morfológicos y espectroscópicos entre piel sana y piel cicatrizada. Se estandarizó un modelo de lesión excisional de piel en ratones hembra de la cepa NIH de 8 semanas de edad (n=16), provocando una herida excisional de 1 cm2. Se analizó piel sana (día 0) y cicatrizada (día 15 post-lesión) morfométrica, histológica y biomolecularmente mediante análisis fotográfico, técnica histológica y MFTIR con su función de mapeo. El análisis morfométrico demostró una reducción del área de la herida en un 87,6 % al día 15 post-lesión. Histológicamente, en la piel cicatrizada se evidenció un adelgazamiento de la epidermis y menor celularidad en la dermis, observándose la formación de tejido de granulación y fibras de colágena desorganizadas. Espectroscópicamente, se apreciaron cambios entre los dos grupos de estudio, principalmente en las bandas de lípidos y en la región de proteínas. El cálculo de las áreas bajo la curva y el mapeo bioquímico mostraron menor concentración de queratina y colágena en la piel cicatrizada, así como desorganización de las fibras de colágena. Se demostró la capacidad de la MFTIR para caracterizar de forma precisa los cambios biomoleculares en la cicatrización, entre ellos la cantidad de queratina, colágena, y el depósito y ordenamiento de las fibras de colágena asociadas a su maduración.

The skin cicatrization is a complex and organized process that involves three phases: inflammatory, proliferative, and remodeling. It is essential to analyze this process biomolecularly, in order to investigate and propose new therapeutic strategies that improve the healing or promote regeneration. The objective of this project was to analyze histological and biomolecularly through Fourier Transform infrared microspectroscopy (FTIRM) and its biochemical mapping function, samples of an excisional skin wound, comparing the morphological and spectroscopic changes between healthy skin and scarred skin. An excisional skin wound healing model was standardized using female, NIH strain 8-week-old mice (n = 16), provoking an excisional wound of 1 cm2. Healthy skin (day 0) and scarring skin (day 15 post-injury) were morphometrical, histological, and biomolecularly analyzed by digital picture analysis, histological technique, and FTIRM with its mapping function. The morphometric analysis showed a reduction of the wound area of 87.6 % at day 15 after wound. Histologically, in the scarred skin a thinning of the epidermis was evidenced, besides reduced cellularity in the dermis, granulation tissue formation, and disorganized collagen fibers were observed. Spectroscopically, changes between the study groups were appreciated, mainly in the lipid bands and in the protein region. The calculation of the areas under the curve and the biochemical mapping showed a lower concentration of keratin and collagen in the scarred skin, as well as collagen fibers disorganization. The ability of the FTIRM to accurately characterize biomolecular changes in cicatrization process was demonstrated, such as the amount of keratin, collagen, and the deposition and ordering of the collagen fibers associated with their maturation.

Animals , Female , Mice , Skin/injuries , Wound Healing/physiology , Spectroscopy, Fourier Transform Infrared , Skin/pathology , Skin Physiological Phenomena , Disease Models, Animal
Arq. ciências saúde UNIPAR ; 23(3): [197-212], set-dez. 2019.
Article in Portuguese | LILACS | ID: biblio-1046184


Objetivou-se comparar a evolução da cicatrização de feridas cirúrgicas com cinco protocolos de tratamento através de análise planimétrica. Grupos de 12 ratos Wistar, foram alocados em cinco estudos experimentais: A- controle negativo; B- ferida cirúrgica, tratada com ultrassom terapêutico (UST) desligado ; C- ferida tratada somente com citrato de sildenafila ; D- ferida tratada com citrato de sildenafila e UST e grupo E-ferida tratada somente com UST. A evolução cicatricial foi acompanhada diariamente e avaliada por imagem fotográfica computadorizada aos sete, 14 e 21 dias. A aplicação do UST pulsado, com doses 1MHZ e 0,4Wcm2 reduziu o tempo de cicatrização epitelial em condições experimentais, favorecendo precocemente a reparação tecidual com efeitos qualitativos superiores ao tratamento com citrato de sildenafila (CS). A mensuração computacional para evolução da cicatrização de ferida dérmica mostrou-se um recurso de fácil aplicação sendo de baixo custo e eficiente para a aplicabilidade na rotina médica veterinária.

This study aimed at comparing the evolution of healing of surgical wounds with five treatment protocols through planimetric measurement. Groups of 12 Wistar rats were allocated in five experimental studies: A ­ negative control; B ­ surgical wound treated with therapeutic ultrasound turned off; C ­ surgical wound treated with sildenafil citrate; D ­ wound treated with sildenafil citrate and therapeutic ultrasound; and group E ­ wound treated only with therapeutic ultrasound. The healing progress was monitored daily and assessed by computed photographic image at seven, 14 and 21 days. It was concluded that the application of pulsated therapeutic ultrasound on surgical wounds at 1 MHz and 0.4Wcm2 doses reduces the epithelial healing time in experimental conditions, favoring the early repair of tissue with qualitative effects superior than the ones found in the treatment with sildenafil citrate (SC). The computational measurement for the evolution of the dermal wound healing proved to be an easy-to-apply resource, with a low cost and great efficiency for the applicability in the veterinary medical routine.

Animals , Male , Rats , Ultrasonic Therapy , Wound Healing , Phosphodiesterase 5 Inhibitors/therapeutic use , Sildenafil Citrate/therapeutic use , Skin/injuries , Time Factors , Wounds and Injuries , Phonophoresis , Cicatrix/therapy , Rats, Wistar
Rev. bras. enferm ; 72(6): 1562-1570, Nov.-Dec. 2019. tab
Article in English | LILACS, BDENF | ID: biblio-1042164


ABSTRACT Objective: to present evidence of validity of an instrument aimed at evaluating the knowledge of nursing students about the care of the wounded patient, according to the difficulty and discrimination indexes of the items. Method: methodological study conducted in a nursing higher education institution with 117 undergraduate students and 38 professionals from a research group with experience in the area of wounds. For data collection, a questionnaire with 10 multiple choice questions was applied before and after classes on wounds. Results: most of the questions presented low level of difficulty and inefficient discrimination index, requiring a revision of the instrument. After two review stages, the difficulty and discrimination indexes of the instruments improved. Conclusion: an instrument with better evidence of validity was obtained. However, it still requires refinement for later revalidation in the same population.

RESUMEN Objetivo: identificar las evidencias de validez según los índices de dificultad y discriminación de los ítems de un instrumento con el fin de evaluar el conocimiento de académicos de enfermería en el cuidado de la persona lesionada. Método: se trata de un estudio metodológico desarrollado en una institución de enseñanza superior de enfermería realizado entre 117 estudiantes de graduación y 38 profesionales con experiencia en el área de heridas pertenecientes a un grupo de investigación. Se recogieron los datos mediante un cuestionario de 10 preguntas de opción múltiple, aplicado antes y después de las clases sobre heridas. Resultados: la mayoría de las cuestiones presentó un nivel bajo de dificultad y poder discriminativo ineficiente, haciéndose necesaria la revisión del instrumento. Tras dos etapas de revisión, el cuestionario demostró una mejoría de los índices de dificultad y discriminación. Conclusión: se logró un instrumento con mejor evidencia de validez, aunque tuvo que ser perfeccionado para su posterior revalidación en la misma población.

RESUMO Objetivo: Identificar as evidências de validade, segundo os índices de dificuldade e discriminação dos itens, de um instrumento para avaliação do conhecimento de acadêmicos de enfermagem no cuidado à pessoa com lesão. Método: Estudo metodológico desenvolvido em instituição de ensino superior de enfermagem com 117 estudantes de graduação e 38 profissionais componentes de grupo de pesquisa com experiência na área de feridas. Para coleta de dados, utilizou-se um questionário com 10 questões de múltipla escolha, aplicado antes e após as aulas de feridas. Resultados: A maioria das questões apresentou baixo nível de dificuldade e poder discriminativo ineficiente, sendo necessária a revisão do instrumento. Após duas etapas de revisão, o questionário apresentou melhora dos índices de dificuldade e discriminação. Conclusão: Obteve-se um instrumento com melhores evidências de validade, embora com necessidade de refinamento para posterior revalidação na mesma população.

Humans , Male , Female , Adolescent , Adult , Young Adult , Students, Nursing , Wounds and Injuries/nursing , Surveys and Questionnaires , Educational Measurement/methods , Skin/injuries , Reproducibility of Results , Clinical Competence , Education, Nursing , Middle Aged
Rev. enferm. UERJ ; 27: e38330, jan.-dez. 2019.
Article in Portuguese | LILACS, BDENF | ID: biblio-1005552


Objetivo: refletir sobre a aplicação dos conceitos de Henderson e Kolcaba durante o cuidado a pessoa com afecção cutânea, visando à promoção do conforto, além da autonomia do enfermeiro. Conteúdo: estudo de reflexão pautado nos conceitos de Henderson, Kolcaba e nos atributos para avaliação do conforto em dermatologia. A restauração do equilíbrio das dimensões física, mental e espiritual exige uma fundamentação filosófica, teórica e tecnológica. Esta encontra respaldo na filosofia de Henderson, que visualizava a função da enfermeira como específica, autônoma e independente. A existência de necessidades de conforto não atendidas pressupõe a necessidade de intervenção. Assim, utilizou-se a análise conceptual do termo conforto, proposto por Kolcaba, incluindo três sentidos técnicos e quatro contextos, além dos atributos como: dor, mobilidade, padrão de sono, entre outros, considerados essenciais na avaliação do conforto em dermatologia. Conclusão: esta reflexão poderá contribuir para utilização das teorias citadas na prática de cuidar em dermatologia.

Objective: to think about application of the concepts of Henderson and Kolcaba during care for people with cutaneous conditions, with a view to affording comfort, besides autonomy for the nurses involved. Content: this reflective study was based on the concepts of Henderson and Kolcaba and on attributes for the evaluation of comfort in dermatology. Restoration of balance in the physical, mental and spiritual dimensions requires a philosophical, theoretical and technological foundation. This is supported by Henderson's philosophy, which viewed the nurse's role as specific, autonomous, and independent. The existence of unmet need for comfort presupposes the need for intervention. Accordingly, the term comfort proposed by Kolcaba, including three technical senses and four contexts, was analyzed conceptually, as were attributes considered essential in assessing comfort in dermatology, such as pain, mobility, sleep pattern, and others. Conclusion: this reflection may contribute to the use of the theories cited in practical care in dermatology.

Objetivo: reflexionar sobre la aplicación de los conceptos de Henderson y Kolcaba durante el cuidado a la persona con afección cutánea, buscando la promoción del confort, además de la autonomía del enfermero. Contenido: estudio de reflexión basado en los conceptos de Henderson, Kolcaba y en los atributos para evaluación del confort en dermatología. La restauración del equilibrio de las dimensiones física, mental y espiritual exige una fundamentación filosófica, teórica y tecnológica. Esta encuentra respaldo en la filosofía de Henderson, que visualizaba la función de la enfermera como específica, autónoma e independiente. La existencia de necesidades de confort no atendidas presupone la necesidad de intervención. Siendo así, se utilizó el análisis conceptual del término confort, propuesto por Kolcaba, incluyendo tres sentidos técnicos y cuatro contextos, además de los atributos como: dolor, movilidad, patrón de sueño, entre otros, considerados esenciales en la evaluación del confort en dermatología. Conclusión: esa reflexión podrá contribuir a la utilización de las teorías mencionadas en la práctica de cuidar en dermatología.

Humans , Male , Female , Skin/injuries , Nursing Theory , Dermatology , Patient Comfort , Nurses , Pain , Nursing , Personal Autonomy , Empathy , Health Services Needs and Demand , Nursing Care
Acta cir. bras ; 34(10): e201901007, Oct. 2019. tab, graf
Article in English | LILACS | ID: biblio-1054673


Abstract Purpose: To conduct a scope review of the experimental model described by Walker and Mason, by identifying and analyzing the details of the method. Methods: The authors searched Pubmed-Medline, Cochrane-Bireme and PEDro databases for articles published between January 2016 and December 2018, using the following search queries: burns, burn injuries, models animal, and animal experimentation. All articles whose authors used Walker and Mason's model - with or without changes to the method in Wistar rats - were included in this study. Results: The search identified 45 mentions of Walker and Mason's model; however, after reading each summary, 20 were excluded (of which 5 due to duplicity). The inconsistencies observed after the scope review were: water temperature, length of time of exposure of the experimental model's skin to water, extent of the burnt area, and the description of the thickness/depth of the injury. Conclusions: Reproducibility of a scientific method is the basis to prove the veracity of the observed results. Thus, it is necessary to have a greater number of publications that adopt a reproducible scientific method, for this review found inconsistencies in the description of Walker and Mason's model.

Animals , Burns/etiology , Disease Models, Animal , Hot Temperature , Skin/injuries , Time Factors , Water , Reproducibility of Results