CYCLIC AND TORSIONAL FATIGUE RESISTANCE OF THERMALLY TREATED ROTARY NiTiINSTRUMENTS WITH DIFFERENT DESIGNS

Aims: The aim was to evaluate the cyclic and torsional fatigue resistance among thermally treated NiTi rotary instruments with different design features.Materials and methods: Sixty instruments of three systems were used (n=20): TruNatomy 26.04 (TN 26.04), BassiLogic 25.05 (BL 25.05), and Flat File 25.04 (FF 25.04). The cyclic fatigue test (n=10) was performed to evaluate the time to fracture (s) and the number of cycles until failure (NCF). The torsion test was performed to evaluate the torque (N.cm) and maximum angular deflection until fracture (n=10). The fracture surface of each fragment was examined under a scanning electron microscope. The data were analyzed by Tukey's test (p<0.05).Results: BL 25.05 and FF 25.04 instruments had a higher number of cycles and time to fracture compared with TN 26.04 (p<0.05). TN 26.04 instruments showed lower torque to fracture.Conclusions: Based on the proposed objectives and the methodology used, TruNatomy 26.04 instruments present lower resistance to cyclic fatigue and torsional fatigue when compared to BassiLogic 25.05 and Flat File 25.04 instruments.

ASSESSMENT OF TORSION RESISTANCE OF GLIDE PATH ROTARY INSTRUMENTS

NiTi endodontic instruments for glide path are the most susceptible to fractures inside the root canal, mainly as a result of high torsional stress. Objective: The present study investigated the resistance to torsion and angular deflection of instruments destined for the glide path: ProGlider #16.02; T-File #17.02 and the MK Life #16.02. Materials and methods: Thirty rotating NiTi glide path instruments (n=10) with 25mm lengths were selected. The torsion test was performed based on ISO 3630-01 (1992). Three millimeters from the tip of the instruments, it was attached to a small load cell by a lever arm connected to the torsion shaft. Torsional strength and angular deflection were evaluated. Fracture surfaces were examined by scanning electron microscopy with magnifications of 1000x and 5000x in the cross section, and 50x in the lateral section. Statistical analysis was performed using the Kruskal-Wallis H test, followed by the Down's post hoc test. Results: The ProGlider instrument showed greater torsional strength (p<0.05) compared to the T-File (p<0.05) and MK Life (p<0.05), respectively. However, the T-File showed greater angular deflection (p<0.05) than the other groups tested. Conclusion: It can be concluded that the ProGlider instrument presented greater torque for the fracture, while the T-File instrument presented greater angular deflection.

Análisis microbiológico a corto y largo plazo del material usado para esterilizar instrumental odontológico / Short and long-term microbiological analysis of the material for sterilize dental instruments

Introducción: el material para empaquetar el instrumental odontológico, como pueden ser bolsas de tela, papel o plástico, es usado por profesionales de la salud; sin embargo, es necesario esclarecer la efectividad de cada uno y determinar el tiempo que permanece estéril luego del procedimiento. Objetivo: identificar la eficacia de tela, plástico y papel como materiales para esterilizar instrumental a corto y largo plazo. Material y métodos: se realizaron cultivos sólidos y líquidos de instrumental esterilizado en tres materiales y con diferentes tiempos de postesterilización. Se incubaron a 36 oC por 72 horas en condiciones aerobias y anaerobias. Los resultados se analizaron usando una prueba de Kruskal-Wallis, seguida de una prueba de Dunn. Resultados: los resultados mostraron que inmediatamente después del proceso de esterilización, los tres materiales son efectivos (Kruskal-Wallis test, p = 0.2752), 24 horas (p = 0.2492), siete (p = 0.0509) y 14 días (p = 0.0006). Veinticuatro horas posterior a la esterilización la tela no es efectiva, el plástico disminuye su efectividad y el papel sigue siendo efectivo. Conclusión: en nuestros resultados, el papel es la mejor opción para esterilizar instrumental (AU)

Introduction: material such as cloth, paper or plastic bags to wrap dental instruments is used by health professionals, however, it is necessary to clarify the effectiveness of each one and determine if it remains sterile after the procedure. Objective: to determine the effectiveness of cloth, plastic and paper as materials to sterilize dental instruments in the short and long term. Material and methods: we carry out solid and liquid cultures of sterilized instruments in three materials, at different post-sterilization times, incubated at 36 oC for 72 hours under aerobic and anaerobic conditions, and the results were analyzed using a Kruskal-Wallis test, followed by from a Dunn's test. Results: our results showed that immediately after the sterilization process the three materials are effective (Kruskal-Wallis; p = 0.2752), 24 hours (p = 0.2492), 7 (p = 0.0509) and 14 (p = 0.0006) days. Twenty-four hours after the cloth is not effective, plastic decreases its effectiveness and paper remain effective. Conclusion: in our results, paper is the best option to sterilize dental instruments (AU)

Avaliação do desempenho de detergentes para limpeza: validação de uma proposta / Evaluación del rendimiento de detergentes para limpieza: validación de una propuesta / Performance evaluation of cleaning detergents: a proposal validation

Resumo Objetivo Elaborar e validar uma proposta para avaliação do desempenho de detergentes na limpeza de produtos para saúde. Métodos Foi desenvolvida proposta para avaliar o desempenho de detergentes rotineiramente utilizados em Centros de Material e Esterilização por meio de um estudo experimental utilizando monitores de limpeza e lavadora ultrassônica. Monitores de limpeza foram dispostos na cuba de uma lavadora ultrassônica. O parâmetro adotado para avaliação do desempenho dos detergentes foi a remoção completa da sujidade dos monitores. Foram avaliados resíduos de proteínas de amostras tubulares de aço inoxidável e de policloreto de polivinila, após contato com carga orgânica desafio e limpeza em lavadora ultrassônica. Foram considerados reprovados os testes que apresentavam gradação da coloração azul e aprovados os testes que permaneciam com a coloração marrom, como indicado nas instruções de uso. Todos os testes foram realizados em triplicata ou quintuplicada. Adicionalmente, foram realizados controles positivos. Resultados O uso do teste com tiras de papel alumínio, foil test, mostrou-se de fácil aplicação e capaz de diferenciar a cavitação em diferentes pontos da cuba da lavadora ultrassônica. Os indicadores de limpeza impregnados com resíduos orgânicos e os monitores de proteína utilizados na proposta apresentaram resultados variados, possibilitando diferenciar a eficácia da limpeza para cada detergente utilizado. Portanto, além de disponíveis no mercado, são ferramentas simples que possibilitaram a avaliação dos detergentes. Conclusão A proposta desenvolvida mostrou-se factível e simples e considerou produtos e equipamentos rotineiramente encontrados em Centros de Material e Esterilização.

Resumen Objetivo Elaborar y validar una propuesta para evaluación del rendimiento de detergentes en la limpieza de productos de salud. Métodos Mediante un estudio experimental con el uso de monitores de limpieza y lavadora ultrasónica, se elaboró una propuesta para evaluar el rendimiento de detergentes utilizados habitualmente en centros de material y esterilización. Se colocaron monitores de limpieza en el tanque de una lavadora ultrasónica. El parámetro adoptado para evaluar el rendimiento de los detergentes fue la eliminación completa de la suciedad de los monitores. Se evaluaron residuos de proteínas de muestras tubulares de acero inoxidable y de cloruro de polivinilo, después del contacto con carga orgánica desafío y limpieza en lavadora ultrasónica. Las pruebas que presentaron una gama de coloración azul fueron reprobadas, y las que permanecían con coloración marrón fueron aprobadas, como indicado en las instrucciones de uso. Todas las pruebas fueron realizadas en triplicado o quintuplicado. Adicionalmente se realizaron controles positivos. Resultados El uso de las pruebas con tiras de papel de aluminio, foil test, demostró ser de fácil aplicación y con capacidad para diferenciar la cavitación en diferentes puntos del tanque de la lavadora ultrasónica. Los indicadores de limpieza impregnados de residuos orgánicos y los monitores de proteína utilizados en la propuesta presentaron resultados variados, lo que permitió diferenciar la eficacia de la limpieza en cada detergente usado. Por lo tanto, además de estar disponibles en el mercado, son herramientas simples que permiten la evaluación de los detergentes. Conclusión La propuesta desarrollada demostró ser factible y simple, e incluyó productos y equipos encontrados habitualmente en centros de material y esterilización.

Abstract Objective To develop and validate a proposal to evaluate the performance of cleaning detergents for health products. Methods A proposal was developed to evaluate the performance of detergents routinely used in Materials and Sterilization Center through an experimental study using cleaning monitors and an ultrasonic washer. Cleaning monitors were placed in the ultrasonic washer tub. The parameter adopted to evaluate the performance of detergents was the complete removal of stain from the monitors. Protein residues from tubular stainless steel and polyvinyl chloride samples were evaluated after contact with challenge organic matter and cleaning in an ultrasonic washer. Tests that showed a gradation of blue color were considered to have failed and tests that remained with a brown color were approved, as indicated in instructions for use. All tests were performed in triplicate or quintuplicate. Additionally, positive controls were performed. Results The use of the foil test with strips proved to be easy to apply and capable of differentiating cavitation at different points in the ultrasonic washer tub. The cleaning indicators impregnated with organic residues and the protein monitors used in the proposal presented varied results, making it possible to differentiate the cleaning effectiveness for each detergent used. In addition to their availability on the market, these simple tools made it possible to evaluate the detergents. Conclusion The proposal developed proved to be feasible and simple and considered products and equipment routinely found in Materials and Sterilization Centers.

Influence of traverse and waveone gold glider glide path files on the amount of apically extruded debris / Influência das limas glide path Traverse e Wave One Gold Glider na quantidade de detritos extruídos apicalmente

Objective: The aim of this study was to evaluate the effect of different glide path files on the amount of apically extruded debris. Material and Methods: Sixty single-canaled mandibular premolars were accessed and randomly divided into three groups (n= 20) according to the file used for glid path creation; group A using Traverse file, group B using WaveOne Gold Glider, group C using stainless steel K file. All teeth were then instrumented using the Reciproc system. The debris extruded apically during instrumentation were collected into pre-weighed Eppendorf tubes which were then stored in an incubator at 70 °C for 5 days. The weight of the dry extruded debris was established by subtracting the pre-instrumentation and post instrumentation weights of the Eppendorf tubes. The data were analyzed using one-way ANOVA test, and post hoc analysis. Results: WaveOne Gold Glider produced the least amount of apical extruded debris (0.41±0.25) followed by the Traverse group (0.59±0.20) then the K-file group (0.64±0.16) with a statistically significant difference (p=0.003). Conclusion: Apical extrusion of debris is inevitable during root canal cleaning and shaping. Creation of glide path using engine-driven files produces less amount of apically extruded debris compared to hand-driven K-files. (AU)

Objetivos: O objetivo deste estudo foi avaliar o efeito de diferentes limas glide path na quantidade de detritos extruídos apicalmente. Metodologia: Sessenta pré-molares inferiores com canal único foram acessados e divididos aleatoriamente em três grupos (n= 20) de acordo com a lima utilizada para criação do glid path; grupo A usando lima Traverse, grupo B usando WaveOne Gold Glider, grupo C usando lima K de aço inoxidável. Todos os dentes foram então instrumentados usando o sistema reciprocante. Os detritos extruídos apicalmente durante a instrumentação foram coletados em tubos Eppendorf pré-pesados que foram então armazenados em uma incubadora a 70°C por 5 dias. O peso dos detritos secos extruídos foi estabelecido subtraindo-se os pesos dos tubos Eppendorf antes e após instrumentação. Os dados foram analisados por meio do teste one-way ANOVA e análise post-hoc. Resultados: WaveOne Gold Glider produziu a menor quantidade de detritos apicais extruídos (0,41±0,25) seguido pelo grupo Traverse (0,59±0,20) e depois pelo grupo K-file (0,64±0,16) com uma diferença estatisticamente significativa (p=0,003). Conclusão: A extrusão apical de detritos é inevitável durante a limpeza e modelagem do canal radicular. A criação do glide path usando limas acionadas por motores produz menos quantidade de detritos extruídos apicalmente em comparação com as limas K manuais. (AU)

Percentual de utilização de instrumentais em procedimentos cirúrgicos / Percentage of use of instruments in surgical procedures / Porcentaje de uso de instrumentos en procedimientos quirúrgicos

Objetivo: analisar o percentual de instrumentais cirúrgicos que compõem a caixa de laparotomia exploradora e não são utilizados durante as cirurgias. Método: estudo descritivo, transversal com abordagem quantitativa, que contabilizou instrumentais constituintes da caixa de laparotomia exploradora utilizados e não utilizados durante 13 cirurgias realizadas em um período de 17 dias, em um hospital do interior paulista. Resultados: nas 13 cirurgias analisadas, obteve-se um total de 1300 (100%) pinças presentes nas caixas, onde 832 (64%) não foram utilizadas e 468 (36%) foram utilizadas. Nos tempos cirúrgicos, o maior número de uso foi de 166 (35,5%) artigos, para preensão e afastadores. Conclusão: houve 64% de instrumentais não utilizados nas cirurgias analisadas. Há necessidade de implementar estratégias gerenciais que reduzam os números encontrados e, consequentemente, reduzam gastos, para gerar menor desperdício e reduzir falhas no gerenciamento de recursos materiais.

Objective: to analyze the percentage of surgical instruments that make up the operating laparotomy box and are not used during surgeries. Method: descriptive, cross-sectional study with quantitative approach, which counted instrumental constituents of the exploratory laparotomy box used and not used during 13 surgeries performed in a period of 17 days, in a hospital in the interior of São Paulo. Results: in the 13 surgeries analyzed, a total of 1300 (100%) tweezers were obtained in the boxes, where 832 (64%) were not used and 468 (36%) were used. In surgical times, the highest number of use was 166 (35.5%) articles, for seizures and reparators. Conclusion: there were 64% of instruments not used in the analyzed surgeries. There is a need to implement management strategies that reduce the numbers found and, consequently, reduce expenses, to generate less waste and reduce failures in the management of material resources.

Objetivo: analizar el porcentaje de instrumentos quirúrgicos que componen la caja de laparotomía quirúrgica y no se utilizan durante las cirugías. Método: estudio descriptivo, transversal con enfoque cuantitativo, que contó constituyentes instrumentales de la caja de laparotomía exploratoria utilizada y no utilizada durante 13 cirugías realizadas en un período de 17 días, en un hospital del interior de São Paulo. Resultados: en las 13 cirugías analizadas, se obtuvieron un total de 1300 (100%) pinzas en las cajas, donde no se utilizaron 832 (64%) y 468 (36%). En tiempos quirúrgicos, el mayor número de uso fue de 166 (35,5%) artículos, para convulsiones y reparadores. Conclusión: hubieran 64% de instrumentos no utilizados en las quirurgias analizadas. Es necesario implementar estrategias de gestión que reduzcan los números encontrados y, en consecuencia, reduzcan los gastos, para generar menos residuos y reducir las fallas en la gestión de los recursos materiales.

Perfil dos convênios celebrados pelo Ministério da Justiça e Segurança Pública com entes subnacionais no Brasil (2008-2022) / Perfil de los acuerdos firmados por el Ministerio de Justicia y Seguridad Pública con entidades subnacionales en Brasil (2008-2022) / Profile of the agreements signed by the Ministry of Justice and Public Security with subnational entities in Brazil (2008-2022)

Resumo O presente artigo tem como objetivo analisar, com base na discussão sobre instrumentos de políticas públicas e nos estudos sobre as políticas de segurança pública no Brasil, o perfil das transferências voluntárias de recursos orçamentários da União celebradas por meio do Ministério da Justiça e Segurança Pública (MJSP) com os entes subnacionais, no período de 2008 a 2022. Trata-se de uma pesquisa documental e de uma análise de conteúdo sobre dados de acesso público extraídos da Plataforma +Brasil. Identificou-se que os convênios dialogam com o paradigma da segurança pública voltada à prevenção da violência, que os estados das regiões Sudeste e Sul figuram como os maiores beneficiados das transferências voluntárias do MJSP e que o Congresso Nacional passou a ser o principal financiador dos convênios ao longo do tempo. O estudo conclui que é preciso esforços por parte do Governo Federal com vistas à distribuição de recursos de forma equânime pelo território.

Resumen Este artículo tiene como objetivo analizar, a partir de la discusión sobre instrumentos de políticas públicas y estudios sobre políticas de seguridad pública en Brasil, el perfil de las transferencias voluntarias de recursos del presupuesto del Gobierno federal celebradas a través del Ministerio de Justicia y Seguridad Pública (MJSP) con entidades subnacionales en el período de 2008 a 2022. Se trata de una investigación de análisis documental y análisis de contenido sobre datos de acceso público extraídos de la Plataforma Mais Brasil. Se identificó que los acuerdos dialogan con el paradigma de la seguridad pública centrada en la prevención de la violencia, que los estados del Sudeste y del Sur son los mayores beneficiarios de las transferencias voluntarias del MJSP y que el Congreso Nacional se convirtió con el tiempo en el principal financiador de los acuerdos. El estudio concluye que son necesarios esfuerzos por parte del Gobierno Federal para distribuir los recursos de forma equitativa en el territorio.

Abstract Based on the discussion about public policy instruments and studies on public security policies in Brazil, this article aims to analyze the profile of voluntary transfers of Union budget resources concluded through the Ministry of Justice and Public Security (MJSP) with subnational entities in the period from 2008 to 2022. The research adopted documentary analysis and content analysis on public access data extracted from the Mais Brasil Platform. It was identified that the agreements dialogue with the paradigm of public security focused on violence prevention. Also, the study showed that the states of the Brazilian Southeast and South regions are the largest beneficiaries of voluntary transfers from MJSP and that the National Congress became the primary funder of agreements over time. The study concludes that the federal government must improve resource distribution to equitably supply the territory.

Improving the Quality of Residency Programs in Family and Community Medicine / Aprimorando a qualidade de Programas de Residência em Medicina de Família e Comunidade

ABSTRACT OBJECTIVE To develop and present an instrument to evaluate and monitor the quality of medical residency programs in residencies in family and community medicine (FCM) based on preceptors and residents, considering the insertion of the health network program. METHOD The instrument was developed in three stages: 1) interview with the preceptors of FCM; 2) literature review; and 3) production, adequacy, and approval of the evaluation instrument by renowned professionals of the Brazilian FCM. The third stage included 9 people and used the Delphi technique with 80% agreement. For the qualitative results, Bardin's Content Analysis was used. RESULTS In all, there were five evaluation cycles to adapt the proposed recommendations, with the elimination of one item and weighting, with a results analysis methodology of 10 resulting items, reaching an expected matrix for organizing residency programs in the health network, divided into 3 domains: Organization of the Unit, Human Resources, and Preceptor-resident relationship. CONCLUSION An instrument for evaluating and monitoring residency programs in family and community medicine can be a tool to facilitate program managers and allow evaluation and monitoring, continuously qualifying them.

RESUMO OBJETIVO Desenvolver e apresentar um instrumento para avaliar e monitorar a qualidade de programas de residência médica em medicina de família e comunidade (MFC) a partir dos preceptores e residentes, considerando a inserção do programa de rede de saúde. MÉTODO A elaboração do instrumento foi desenvolvida em três etapas: 1) entrevista com preceptores em MFC; 2) revisão da literatura; e 3) produção, adequação e aprovação do instrumento avaliativo por profissionais renomados na MFC brasileira. A terceira etapa contou com nove pessoas e utilizou a técnica Delphi com obtenção de 80% de concordância. Para os resultados qualitativos foi utilizada a análise de conteúdo de Bardin. RESULTADOS Ao todo ocorreram cinco ciclos de avaliação para adequação das recomendações propostas, com eliminação de um item e ponderação, e metodologia de análise de resultado de dez itens resultantes. Atingiu-se uma matriz esperada para a organização de programas de residência na rede de saúde, dividida em três domínios: organização da unidade, recursos humanos e relação preceptor-residente. CONCLUSÃO Um instrumento de avaliação e monitoramento de programas de residência em MFC pode ser uma ferramenta para auxiliar gestores de programas e permite a avaliação e monitoramento, qualificando-os continuamente.

Controle de materiais e instrumental cirúrgico no intraoperatório: percepção e estratégias utilizadas por instrumentadores / Control of materials and surgical instruments in the intraoperative period: perception and strategies used by surgical technologists

Objetivo: Conhecer as estratégias utilizadas por instrumentadores para o controle de materiais e instrumental cirúrgico no intraope-ratório. Método: Estudo descritivo e qualitativo, realizado em hospital privado. Participaram 13 instrumentadores cirúrgicos. Os dados foram coletados entre agosto e setembro de 2022 por meio de entrevistas gravadas em áudio. Como instrumento para coleta dos dados, utilizou-se um roteiro estruturado, contendo sete perguntas, e questões referentes ao perfil da amostra. Foram incluídos técnicos de enfermagem forma-dos, atuantes como instrumentadores cirúrgicos. Foram excluídos instrumentadores ausentes no período da coleta de dados. Os dados foram analisados por meio da análise de conteúdo. Resultados: Com base na análise dos dados, emergiram quatro categorias: protocolo de cirurgia segura; controle de materiais e instrumentais; desafios no seguimento do protocolo de cirurgia segura; facilitadores do seguimento do proto-colo de cirurgia segura. Conclusão: Pôde-se conhecer as estratégias utilizadas por instrumentadores cirúrgicos para o controle dos materiais dispostos na mesa de instrumentação durante o intraoperatório. Pressa de profissionais, falta de adesão e o não seguimento de rotinas insti-tucionais caracterizam-se como desafios para o seguimento das etapas do protocolo de cirurgia segura

Objective: To know the strategies used by surgical technologists to control materials and surgical instruments in the intraopera-tive period. Method: This qualitative descriptive study was carried out in a private hospital. A total of 13 surgical technologists participated in the research. Data were collected during audio-recorded interviews between August and September 2022. The data collection instrument was a structured questionnaire consisting of seven questions, as well as items related to the sample profile. We included trained nursing technicians, working as surgical technologists. Those who were absent during data collection were excluded. Data were analyzed by con-tent analysis. Results: The data analysis produced four categories: surgical safety checklist; control of materials and instruments; challenges in following the surgical safety checklist; facilitators to following the surgical safety checklist. Conclusions: The study allowed us to know the strategies used by surgical technologists to control the materials arranged on the instrument table during the intraoperative period. The haste of professionals, lack of adherence, and non-compliance with institutional routines are regarded as challenges in following the steps of the surgical safety checklis

Objetivo: Conocer las estrategias utilizadas por instrumentistas para el control de materiales e instrumental quirúrgico en el intraope-ratorio. Método: Estudio descriptivo y cualitativo, realizado en hospital privado. Participaron 13 instrumentistas quirúrgicos. Los datos fueron colectados entre agosto y septiembre de 2022 por medio de entrevistas grabadas en audio. Como instrumento para colecta de los datos, se utilizó um guion estructurado, conteniendo siete preguntas, y cuestiones referentes al perfil de la muestra. Fueon incluidos técnicos de enfermería egre-sados, actuantes como instrumentistas quirúrgicos. Fueron excluidos instrumentistas ausentes en el período de la colecta de datos. Los datos fue-ron analizados por medio del análisis de contenido. Resultados: Con base en el análisis de los datos, emergieron cuatro categorías: protocolo de cirugía segura; control de materiales e instrumentales; desafíos en el seguimiento del protocolo de cirugía segura; facilitadores del seguimiento del protocolo de cirugía segura. Conclusión: Se pueden conocer las estrategias utilizadas por instrumentistas quirúrgicos para el control de los materiales dispuestos en la mesa de instrumentación durante el intraoperatorio. Prisa de profesionales, falta de adhesión y el no seguimiento de rutinas institucionales se caracterizan como desafíos para el seguimiento de las etapas del protocolo de cirugía segura

Evaluation of Muscle Fatigue in Spinal Surgery Instruments Based on sEMG-JASA / 中国医疗器械杂志

Based on the joint analysis of EMG spectrum and amplitude method (JASA), a study on muscle fatigue assessment of spinal surgical instruments based on surface EMG signals was carried out, and a comparative evaluation of the operating comfort before and after the optimization of spinal surgical instruments was completed. A total of 17 subjects were recruited to collect the surface EMG signals of their brachioradialis and biceps. Five surgical instruments before and after optimization were selected for data comparison, and the operating fatigue time proportion of each group of instruments under the same task was calculated based on the RMS and MF eigenvalues. The results showed that when completing the same operation task, the operation fatigue time of the surgical instruments before optimization was significantly higher than that after optimization (P<0.05); there was no significant difference in the fatigue status of brachioradialis and biceps when operating the same instrument (P>0.05). These results provide objective data and reference for the ergonomic design of surgical instruments and fatigue damage protection.

Significance of target volume delineation of tumor bed according to metal clips or seroma in determing tumor bed position during radiotherapy after breast-conserving surgery for breast cancer / 肿瘤研究与临床

Objective:To investigate the differences between the mental clips placed intraoperatively and the tumor bed's target volume delineation of seroma based on CT scanning during radiotherapy for breast cancer patients who received breast-conserving surgery in the persuit of a better solution to determine the tumor bed position.Methods:The clinical data of 13 patients with early breast cancer who received postoperative radiotherapy after breast-conserving surgery at Beijing Shijingshan Hospital and Beijing Shijitan Hospital of Capital Medical University from December 2020 to January 2022 were retrospectively analyzed. They all had surgical clips implanted during the surgery. The following methods were used to delineate the target volume of tumor bed, including gross target volume delineation of tumor bed based on the mental clips (GTVtb-Clip), the tumor bed's gross target volume delineation of seroma based on CT scanning (GTVtb-Seroma), and the combination of both (GTVtb-C+S). The volume, diameter on three coordinate axis, neutral point displacement and conformability of these delineation methods were compared.Results:The volume of GTVtb-Clip, GTVtb-Seroma and GTVtb-C+S was (25±10) cm 3, (38±17) cm 3, (49±20) cm 3, and the differences were statistically significant (all P<0.05). The diameter on X axis was (4.7±1.2) cm, (5.3±1.4) cm, (5.7±1.6) cm, respectively in GTVtb-Clip, GTVtb-Seroma and GTVtb-C+S; the diameter on Y axis was (4.6±1.7) cm, (5.0±1.6) cm, (5.7±1.7) cm, respectively in GTVtb-Clip, GTVtb-Seroma and GTVtb-C+S; the diameter on Z axis was (4.4±1.5) cm, (5.2±1.4) cm, (5.6±1.4) cm in GTVtb-Clip, GTVtb-Seroma and GTVtb-C+S. The differences in the diameter of GTVtb-Clip and GTVtb-C+S on X,Y, Z axis were statistically significant (all P<0.05); the differences in the diameter of GTVtb-Seroma and GTVtb-C+S on X, Z axis were statistically significant (all P<0.05); the difference in the diameter of GTVtb-Clip and GTVtb-Seroma on X axis was statistically significant ( P<0.05) .Neutral point displacement was (5.8±1.6) cm, (5.5±1.9) cm, (6.0±1.7) cm, respectively of GTVtb-Clip, GTVtb-Seroma, GTVtb-C+S, and the difference was not statistically significant ( P>0.05). Conformability of GTVtb-Clip and GTVtb-Seroma, GTVtb-Clip and GTVtb-C+S, GTVtb-Seroma and GTVtb-C+S was 0.412±0.112, 0.525±0.095, 0.774±0.112,respectively, and the differences were statistically significant (all P<0.05). Conclusions:During radiotherapy after breast-conserving surgery for breast cancer, compared with the single method, the combination of GTVtb-Clip and GTVtb-Seroma can better cover the real tumor bed, thus reducing the omission of tumor bed and recurrence rate. CT position should better take place at 4 to 8 weeks for patients receiving radiotherapy after breast-conserving surgery, and target volume of tumor bed will be delineated based on the postoperative changes of both mental clips and seroma.

A quantitative study of regulatory policy texts in China′s healthcare sector from the perspective of policy instruments / 中华医院管理杂志

Objective:To analyze the evolution of China′s national-level healthcare sector regulatory policies between 2003 and 2021, and explore the characteristics and patterns of the use of policy instruments at different stages, for references in policy optimization.Methods:The policy documents related to the regulation of the healthcare sector released by the central government were searched from 2003 to 2021 from the policy document database of the State Council using the keywords " medical" " regulation" and " health" " regulation". Based on the analysis framework of " formulation subject-implementation subject-policy tools", such methods as content analysis, social network analysis, and policy tool analysis were used to analyze policy documents and conduct descriptive analysis of data.Results:A total of 236 policies were included in the study.From 2003 to 2008, according to the time progression, a total of 27 documents were issued, with the State Council as the main formulation subject (77.78%, 21/27), and the government as the main implementation subject (100.00%, 27/27). 191 policy tools were used, and the composition ratios of supply-based, demand-based, and environment-based policy instruments were 21.46% (41/191), 30.37% (58/191), and 48.17% (92/191). From 2009 to 2017, a total of 48 policies were issued, the formulation subject was mostly the State Council (93.75%, 45/48), and the implementation subject was still mostly the government (100.00%, 48/48), but the proportion of institutions (25.00%, 12/48), industry organizations (43.75%, 21/48) and the society (37.50%, 18/48) has increased. 500 policy tools were used, and the composition ratios of supply-based, demand-based, and environment-based policy instruments were 17.40% (87/500), 32.00% (160/500), and 50.60% (253/500), respectively.From 2018 to 2021, a total of 161 documents were issued, with the formulation subjects featuring multiple subjects (38.51%, 62/161), with a decrease in the percentage of the State Council′s issuance (22.36%, 36/161), and 157 (97.52%) policies were implemented by the government. 1 140 policy tools were used, and the composition ratios of supply-based, demand-based, and environment-based policy instruments being 18.42% (210/1 140), 34.74% (396/1 140), and 46.84% (534/1 140), respectively.Conclusions:From 2003 to 2021, there was an upward trend in the number of policies issued in the field of healthcare sector regulation in China, and the subjects of formulation and implementation were diversified. But the use of different types of policy instruments was uneven.

Point-of-care testing technology and experimental diagnosis of insect-borne diseases: applications and challenges / 中华检验医学杂志

Insect-borne infections are causing serious public health concerns worldwide. Point-of-care testing technology for insect-borne diseases can rapidly and accurately determine the pathogens, thus it plays an important role in the application of portable disease control measurements. This article provides an overview of the point-of-care testing technology for insect-borne infectious diseases regarding its application, advantages and limitations in experimental diagnoses, and its future trends.

Application of self-developed rapid tracheotomy apparatus for acute tracheotomy / 中国基层医药

Objective:To investigate the application effects of self-developed rapid tracheotomy apparatus for acute tracheotomy.Methods:A total of 120 patients who underwent an acute tracheotomy in the Weihai Branch of The 970 Hospital of PLA Joint Logistics Support Force from January 2019 to December 2020 were included in this study. These patients were randomly divided into a rapid group and a conventional group, with 60 patients in each group. Patients in the rapid group underwent tracheotomy with a self-developed rapid tracheotomy apparatus. Patients in the conventional group underwent the standard steps of traditional tracheostomy. The operation time, incision length, amount of bleeding, and incidence of postoperative complications were compared between the two groups.Results:The operation time in the rapid group was significantly shorter than that in the conventional group [(4.5 ± 0.9) minutes vs. (19.3 ± 4.7) minutes, t = 23.86, P < 0.001]. The length of incision in the rapid group was significantly shorter than that in the conventional group [(2.8 ± 0.3) cm vs. (4.2 ± 1.3) cm, t = 8.68, P < 0.001]. The amount of bleeding during the surgery in the rapid group was significantly less than that in the conventional group [(4.4 ± 1.6) mL vs. (11.8 ± 4.1) mL, t = 12.99, P < 0.001]. The incidence of postoperative complications in the rapid group was significantly lower than that in the conventional group ( χ2 = 4.66, P = 0.031). Conclusion:The self-developed rapid tracheotomy apparatus for acute tracheotomy can be used to establish an artificial airway quickly and minimally invasively by simplifying the operational steps. It is remarkably innovative to increase safety with open-view operations and decrease the incidence of complications. It can be repeatedly sterilized and reused, which is worthy of clinical application and popularization.

Scientific and technological innovation drives the development of minimally invasive surgery / 中华消化外科杂志

Scientific and technological innovation is the most important role in driving the development of minimally invasive surgery. After more than 30 years of development, modern mini-mally invasive surgery represented by laparoscopic surgery has gradually matured. Various types of minimally invasive surgeries have been popularized, and the difficulty of surgery has changed from extreme to limit. Surgical equipments and instruments can meet the needs of most clinical operations. The future of minimally invasive surgery has reached a crossroad, and only scientific and technological innovation can promote the development of minimally invasive surgery change lanes and overtake, ushering in new development, new methods, and a new world. For innovation, the most important thing is not knowledge, but vision and ideas. A new technological revolution will inevitably bring about changes in the industry. What changes will be ushered in the operation and treatment of diseases in the future? What will be the breakthrough of minimally invasive surgery? It is worth to wait and see. The authors discuss the development direction of minimally invasive surgery based on the recent application of hot technologies in laparoscopic surgery.

Research on the management effect of information nurse in sterilization supply center in new surgical instruments / 中国实用护理杂志

Objective:To explore the management effect of information nurses in the reception of new surgical instruments and to provide a reference for improving the quality of instrument management in central sterile supply department.Methods:This was a quasi-experimental study. A total of 45 packages of 227 pieces received from January to July 2021 in central sterile supply department of the First Affiliated Hospital of Zhengzhou University were selected as the control group by convenience sampling method, and the conventional mode was used to receive new surgical instruments. Another 51 packages of 259 pieces received from November 2021 to June 2022 were selected as the observation group, and the information nurse management system was set up to receive new surgical instruments. The observation and comparison of the time to complete the receipt of new surgical instruments in central sterile supply department, the incidence of adverse events in the operation process and the satisfaction of medical and nursing staff with the management of new surgical instruments were conducted.Results:The receiving time for newly added surgical instruments of the observation group was 6.00(5.00, 8.00) hours and that of the control group was 28.00(20.00, 42.50) hours, with a statistically significant difference between the two groups ( Z = - 8.26, P<0.01). The incidence of adverse events of new surgical instruments was 0.4%(1/259) in the observation group and 6.2%(14/227) in the control group, there was significant difference between the two groups ( χ2 = 13.52, P<0.01). The satisfaction degree of medical staff in the observation group was 100% (50/50), higher than 72% (36/50) in the control group, and the difference between the two groups was statistically significant ( χ2 = 16.28, P<0.01). Conclusions:The implementation of the post of information nurse in the special post responsibility system in the management of new surgical instruments can effectively manage the specifications of surgical instruments, reduce the receiving time and the occurrence of adverse events, improve the satisfaction of medical staff.

Application of 3D printing technology in the precise functional reconstruction of jaws / 口腔疾病防治

@#With the development of computer-aided surgery and rapid prototyping via 3D printing technology, digital surgery has rapidly advanced in clinical practice, especially in the field of oral and maxillofacial surgery. 3D printing technology has been applied to the functional restoration and reconstruction of the jawbone. Before surgery, a 3D digital model is constructed through software to plan the scope of the osteotomy, shape the bone graft and plan the placement of the implant. Additionally, 3D models of personalized surgical instrument guides are printed prior to surgery. With these 3D-printed models and guides, accurate excision of the jaw tumor, accurate placement of the grafted bone and precise placement of implants can be achieved during surgery. Postoperative evaluation of accuracy and function shows that 3D printing technology can aid in achieving the biomechanical goals of simultaneous implant placement in jaw reconstruction, and in combination with dental implant restoration, the technology can improve patients' postoperative occlusal and masticatory functions. Nevertheless, 3D printing technology still has limitations, such as time-consuming preparation before surgery. In the future, further development of 3D printing technology, optimization of surgical plans, and alternative biological materials are needed. Based on domestic and foreign literature and our research results, we have reviewed the process and clinical application prospects of jaw reconstruction via 3D printing technology to provide a reference for oral and maxillofacial surgeons.

Características clínicas y resultados quirúrgicos de pacientes pediátricos intervenidos por cirugía robótica / Clinical characteristics and surgical outcomes of pediatric patients who underwent robotic surgery

INTRODUCCIÓN. La cirugía robótica se realiza gracias al sistema telemanipulado, alcanzando tareas repetitivas, precisas y mínimamente invasivas. En Ecuador inició en el año 2016, incluyendo este procedimiento a pediatría en el 2021. OBJETIVO. Describir las características clínicas y resultados quirúrgicos de pacientes pediátricos intervenidos por cirugía robótica. MATERIALES Y MÉTODOS. Estudio transversal analítico. Población de 278 y muestra de 40 datos de historias clínicas electrónicas de pacientes pediátricos intervenidos por cirugía robótica de agosto del 2021 a marzo del 2022 en el Hospital Carlos Andrade Marín. Criterios de inclusión: pacientes pediátricos intervenidos por cirugía robótica en el Hospital de Especialidades Carlos Andrade Marín. Criterios de exclusión: pacientes adultos, haber sido intervenidos quirúrgicamente por técnicas abiertas o laparoscópica. La información se obtuvo del sistema AS400; se creó una base de datos anonimizando a los pacientes. Se aplicó un análisis univariado y para determinar significancia estadística se utilizó la prueba de Chi-2. La información recolectada fue analizada en el programa estadístico International Business Machines Statistical Package for the Social Sciences. RESULTADOS: De los pacientes del estudio: 45,00% (18; 40) era adolescente. El 52,50% (21; 40) no presentó comorbilidades. 50,00% (20; 40) de las intervenciones fueron colecistectomía. 55% (22; 40) fué por diagnóstico prequirúrgico y posquirúrgico gastrointestinal y hepático. El 95,00% (38; 40) no presentó complicaciones. El 100% (40; 40) presentó sangrado G1. El 97,50% (39; 40) no presentó eventos, y el 72,5% (29; 40) no presentó dolor. El promedio de peso de los pacientes fue 41 kilogramos, con una media de 3 días de estancia hospitalaria, un promedio de 65 minutos de cirugía total y 15 minutos de docking, los cuales son estadísticamente significativos con una p= 0,001. CONCLUSIONES. Se registró las características clínicas y resultados quirúrgicos de pacientes pediátricos intervenidos por cirugía robótica. La cirugía robótica se aplicó con seguridad en pacientes pediátricos del Hospital Carlos Andrade Marín.

INTRODUCTION. Robotic surgery is performed thanks to the telemanipulated system, achieving repetitive, precise and minimally invasive tasks. In Ecuador it started in the Hospital de Especialidades Carlos Andrade Marín in 2016, including this procedure to pediatrics in 2021. OBJECTIVE. To describe the clinical characteristics and surgical outcomes of pediatric patients operated by robotic surgery. MATERIALS and METHODS. Analytical cross-sectional study. Population of 278 and sample of 40 data from electronic medical records of pediatric patients operated by robotic surgery from August 2021 to March 2022 at the Carlos Andrade Marin Hospital. Inclusion criteria: pediatric patients who underwent robotic surgery at the Hospital de Especialidades Carlos Andrade Marín. Exclusion criteria: adult patients, having undergone open or laparoscopic surgery. The information was obtained from the AS400 system; a database was created by anonymizing the patients. Univariate analysis was applied and the Chi-2 test was used to determine statistical significance. The information collected was analyzed in the statistical program International Business Machines Statistical Package for the Social Sciences. RESULTS: Of the patients in the study: 45,00% (18; 40) were adolescents. 52,50% (21; 40) had no comorbidities. 50,00% (20; 40) of the interventions were cholecystectomy. 55% (22; 40) were for preoperative and postoperative gastrointestinal and hepatic diagnosis. 95,00% (38; 40) had no complications. 100% (40; 40) presented G1 bleeding. 97.50% (39; 40) did not present events, and 72,5% (29; 40) did not present pain. The average weight of the patients was 41 kilograms, with a mean hospital stay of 3 days, an average of 65 minutes of total surgery and 15 minutes of docking, which are statistically significant with a p= 0,001. CONCLUSIONS. The clinical characteristics and surgical results of pediatric patients who underwent robotic surgery were recorded. Robotic surgery was safely applied in pediatric patients at the Carlos Andrade Marin Hospital.

Problemas comportamentales en la infancia: conceptualización, evaluación e impacto / Behavioral Problems during Childhood: conceptualization, evaluation and impact

Los problemas comportamentales en la infancia suponen todos aquellos comportamientos persistentes en los que se repiten conductas que no respetan las normas o las reglas sociales propias de la edad. La detección temprana de estas dificultades permite controlar en cierto modo la gravedad del asunto ya que, de no trabajarse sobre la sintomatología del niño, las posibilidades de desarrollar un trastorno mental severo son mayores. Así, la identificación y el diagnóstico de los problemas conductuales se ha vuelto una meta de gran significación para la disciplina psicológica. El objetivo de este estudio fue realizar una revisión de la literatura reciente para sistematizar la información referida a las diferentes conceptualizaciones teóricas que existen sobre los problemas comportamentales desde diversas escuelas psicológicas y las respuestas terapéuticas que ofrecen, identificar los instrumentos de medición validados para su evaluación en Argentina, y describir la importancia de su detección temprana y posibles áreas de incidencia(AU)

Behavioral problems in childhood involve all those persistent actions in which activities that do not respect the norms or social rules of the age are repeated. Early detection of these problems makes it possible to control the severity of the problem to a certain extent. If the child's symptoms are not elaborated, the chances of developing a severe mental disorder are greater. Thus, the identification and diagnosis of behavioral problems has become a goal of great significance for the psychological discipline. The objective of this article was to carry out a review of the recent literature to systematize the information referring to the different theoretical conceptualizations that exist on behavioral problems from various psychological schools and the therapeutic responses they offer. Also,to identify the measurement instruments validated for their evaluation in Argentina and describe the importance of its early detection and possible areas of incidence(AU)