Analgesic effect and safety of using an epidural analgesia pump versus an intravenous analgesia pump for uterine artery embolization in the treatment of uterine fibroids / 中国基层医药

Objective:To investigate the analgesic effect and safety of using an epidural analgesia pump versus an intravenous analgesia pump for uterine artery embolization in the treatment of uterine fibroids. Methods:Fifty patients with uterine fibroids undergoing uterine artery embolization admitted to The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University from January 2019 to December 2021 were included in this study. They were divided into an observation group and a control group ( n = 25/group). Patients in the observation group used an epidural analgesia pump for pain relief, while patients in the control group used an intravenous analgesia pump for pain relief. At 1, 6, 12, and 24 hours after surgery, pain severity was compared between the two groups using the Visual Analogue Scale. Comfort level was compared between the two groups using the Bruggemann Comfort scale. Before and after surgery, respiratory rate, heart rate, blood pressure, and adverse reactions were compared between the two groups. Results:At 1 hour after surgery, the Visual Analogue Scale score in the observation group was significantly lower than that in the control group [3.00 (2.00, 5.50) vs. 7.00 (6.00, 8.00), Z = -3.84, P < 0.05]. At 6, 12, and 24 hours after surgery, there was a significant difference in the Visual Analogue Scale score between the two groups (all P > 0.05). Within 24 hours after surgery, the use of opioid analgesics in the observation group was less than that in the control group [16.00% (4/25) vs. 88.00% (22/25), χ2 = 25.96, P < 0.001]. At 1 hour after surgery, the Bruggemann Comfort Scale score in the observation group was significantly higher than that in the control group [0.00 (0.00, 0.50) vs. 0.00 (0.00, 0.00), Z = 2.08, P < 0.05]. At 6, 12, and 24 hours after surgery, there was no significant difference in the Bruggemann Comfort Scale score between the two groups (all P > 0.05). After surgery, heart rate was significantly decreased in each group compared with before surgery (both P < 0.05). There were no significant differences in respiratory rate and mean arterial pressure between the two groups before and after surgery (both P > 0.05). There were no significant differences in the incidences of postoperative nausea, vomiting, and fever between the two groups (all P > 0.05). Conclusion:The epidural analgesia pump used for uterine artery embolization in the treatment of uterine fibroids has a better analgesic effect and provides more comfort and is safer than the intravenous analgesia pump. The former is worthy of clinical promotion.

Refractory cancer pain in young child at end?of?life: Can we alleviate the suffering?

Pain is a common and highly distressing symptom in children with advanced malignancies and it is often multifactorial at the end?of?life. The prognosis of cancer pain is reported to be worse in those with mixed pain type, high pain severity, daily opioid use, and poor emotional well?being. We describe a case of 13?year?old boy, known case of metastatic Ewing sarcoma right iliac bone, who presented to our palliative care ward with intractable pain and was finally discharged home for terminal care with high doses of morphine, ketamine, and midazolam infusion through elastomeric pump attached to a peripherally inserted central catheter (PICC line). The suffering of imminently dying children should be reduced, and judicious dose escalation of opioids along with adjuvants is appropriate and often necessary.

Causal analysis on infusion timeout of 5-fluorouracil powder injection infusion pumps and the optimization for dispensing methods / 中国实用护理杂志

Objective:To analyze the cause of infusion timeout of 5-fluorouracil (5-FU) powder injection infusion pumps, and conduct research on the dispensing methods, then provide a basis for clinical dispensing.Methods:The dissolution effect of 5-FU in different solvents were tested in the lab. The effect of different solvents on infusion timeout of infusion pumps, and the factors related to infusion timeout of the pumps were explored by analyzing the clinical data which was collected in Cancer Hospital of Shantou University Medical College from May 20 to July 20, 2020.Results:The dissolving capacity to 5-FU of different solvents sorted by the influence in a descending manner as follows: water for injection> 5% glucose injection (5%GS) >0.9% sodium chloride injection (0.9%NS) . Infusion timeout value of water for injection group (15.03 ± 8.62)% was lower than that of 0.9%NS group (36.78 ± 4.81)%, (0.9%NS+ water for injection) group (22.50 ± 7.22)%, 5%GS group (25.53 ± 6.21)% and (5%GS+ water for injection) group (24.78 ± 4.36)% ( t values were 2.50-5.27, all P<0.05). The timeout value of 0.9%NS group was higher than that of other groups ( t values were 3.65-5.27, all P<0.05). There were differences in infusion timeout between intravenous infusion group (23.07 ± 8.98)% and arterial infusion groups (60.60 ± 58.64)% ( H=10.18, P=0.001). There was a positive correlation between drug concentration and infusion timeout( r=0.29, P=0.013), and a negative correlation between total liquid volume and infusion timeout ( r=-0.59, P<0.01). Infusion timeout of pumps was partly (67.3%) affected by drug concentration, total liquid volume and infusion route. Conclusions:The research shows that infusion timeout of 5-FU powder injection infusion pumps is related to drug concentration, total liquid volume and infusion route. It is suggested that the percentage of water for injection, drug concentration, total liquid volume, and infusion route should be considered when 5-FU powder injection infusion pumps are prepared.

Start-up delay in syringe infusion pumps with different rates and priming techniques of intravenoust sets / Retardo en la puesta en marcha en bombas de infusión de jeringa con diferentes velocidades de infusión y purga del sistema de infusión / Atraso na inicialização em bombas de infusão por seringa com diferentes velocidades de infusão e técnicas de preenchimento do sistema de infusão

ABSTRACT Objective: To investigate infusion pumps start-up delay according to different brands of infusion pumps, flow rates and intravenous sets priming techniques. Method: The experimental study simulated clinical practice under controlled conditions, using a 50 mL syringe with NaCl 0.9% solution, two syringe infusion pumps (A and B), six rates (0.3, 0.5, 1.0, 5, 10 and 20 mL/h), two purging techniques (manually or infusion pump's electronic bolus). Data were analyzed according to mean, standard deviation, Student's t and ANOVA tests (p<0.05). Results: The start-up delay was greater in low rates regardless the priming technique. The electronic bolus increased the infusion pump A accuracy at 0.3mL/h (p=0.010), 0.5 mL/h (p=0.002) and 1.0mL/h (p=0.004). Pump's accuracy in all studied rates and manual IV sets filling was similar. Conclusion: In low infusion rates the start-up delay was greater despite the infusion pump brand and electronic bolus improved pumps accuracy.

RESUMEN Objetivo: El objetivo fue investigar el retraso en la operación de bombas de infusión de acuerdo con diferentes marcas de bombas de infusión, velocidades de infusión y técnicas de purga de lo sistema de infusión. Método: Estudio experimental que simuló la práctica clínica en condiciones controladas con jeringas de 50 mL y solución de NaCl 0,9%, dos bombas de infusión de jeringa (A y B), seis velocidades (0,3; 0,5; 1,0; 5; 10 y 20 mL/h), dos modos de purga (manual o electrónico por la bomba de infusión - bolo). Los datos se analizaron según media, desviación estándar, Test-T y ANOVA (p<0,05). Resultados: El retraso de la operación de las bombas ocurrió en tasas bajas independientemente de la técnica de purga. El modo electrónico aumentó la precisión de la bomba de infusión A en 0,3 mL/h (p=0,010), 0,5 mL/h (p = 0,002) y 1,0 mL/h (p=0,004). Con la técnica manual la precisión fue similar. Conclusión: Los retrasos de operación fueran significantes en bajas velocidades de infusión y el modo electrónico optimizó la precisión.

RESUMO Objetivo: Verificar o atraso de inicialização de bomba de infusão, segundo diferentes marcas de bombas de infusão, velocidades e técnicas de preenchimento do sistema de infusão intravenosa. Método: Estudo experimental que simulou a prática clínica, utilizando seringas de 50 mL com solução de NaCl 0,9%, duas marcas de bombas de infusão por seringa (A e B), seis velocidades (0,3; 0,5; 1,0; 5; 10 e 20 mL/h), dois modos de preenchimento do sistema (manual ou eletrônico pelo modo bolus do equipamento). Os dados foram analisados segundo média, desvio padrão e testes t de Student e ANOVA (p<0,05). Resultados: O atraso na inicialização foi maior em velocidades baixas, independentemente da marca e modo de preenchimento. O preenchimento eletrônico aumentou a acurácia na bomba A em 0,3 mL/h (p=0,010), 0,5 mL/h (p=0,002) e 1,0 mL/h (p=0,004). A acurácia em preenchimento manual foi semelhante. Conclusão: Em baixas velocidades de infusão o atraso de inicialização foi maior e o preenchimento do sistema de infusão pelo modo eletrônico melhorou a acurácia dos equipamentos.

Ultrasound combined with X-ray-guided precise implantation of totally implantable access ports in the chest wall / 中国基层医药

Objective:To investigate the success rate, operation time and complications of ultrasound combined with X-ray-guided precise implantation of totally implantable access port (TIAP) in the chest wall.Methods:A total of 623 patients who underwent implantation of totally implantable venous access ports in the chest wall in Meizhou People's Hospital, China between January 2015 and August 2018 were included in this study. In group A ( n = 320), jugular or subclavian access ports were precisely implanted in the chest wall under the guidance of ultrasound combined with X-ray. During the surgery, color Doppler ultrasound was used to guide the puncture and a C-arm machine was used to locate the position of catheter tip. In group B ( n = 303), venous access ports were implanted using the conventional method. Subclavian vein puncture was performed using anatomic landmarks and the depth of catheterization was estimated by experience. The success rate of the first implantation, operation time, and complications (pneumothorax, hemothorax, catheter displacement, poor position of catheter tip, skin infection, and thrombosis) were compared between the two groups. Results:There were no statistical differences in baseline data between the two groups ( P > 0.05). The success rate of the first implantation in the group A was significantly higher than that in the group B [100% (320/320) vs. 93.06% (282/303), χ2 = 22.95, P < 0.01]. The operation time in the group A was significantly shorter than that in the group B [(26.48 ± 5.49) minutes vs. (35.51 ± 14.37) minutes, t = -10.25, P < 0.01]. In group A, 2 patients developed pneumothorax and healed after conservative treatment, 6 patients had thrombosis, and the incidence of complications was 2.5% (8/320). In group B, complications occurred in 67 patients, including pneumothorax in 9 patients, poor catheter tip position in 17 patients, thrombosis in 36 patients, and skin infection in 1 patient, and the incidence of complications was 22.11% (67/303). There was significant difference in the incidence of complications between the two groups ( χ2 = 56.53, P < 0.01). In group B, 6 out of 9 patients developing pneumothorax were healed after closed thoracic drainage, and 4 patients underwent a secondary surgery because of catheter displacement into the internal jugular vein. Conclusion:Precise implantation of venous access ports in the chest wall guided by ultrasound combined with X-ray has the advantages including 100% success rate of first precise implantation, few complications, short operation time, high comfort, safety and efficacy.

Fadiga de alarmes em bombas de infusão no contexto pediátrico: revisão integrativa / Alarm fatigue in infusion pumps in the pediatric context: integrative review / Fatiga de alarma en bombas de infusión en el contexto pediátrico: revisión integrativa

Objetivo: identificar as causas da fadiga de alarmes em estudos de usabilidade de bomba de infusão em terapia intensiva pediátrica. Métodos: Realizou-se uma revisão integrativa nas bases de dados LILACS, SciELO, IBECS, SCOPUS e MEDLINE. Resultados: Foram identificadas 1.164 publicações e selecionados seis estudos primários que emergiram em duas temáticas: compreender as causas dos alarmes da bomba de infusão que constou: biblioteca de fármacos incompleta, limites absolutos e relativos rígidos, falta de protocolo de preparo e administração de medicação, período de férias dos funcionários; e as medidas que podem evitar a fadiga de seus alarmes.Conclusão:falhas na usabilidade de bombas de infusão aumentam os alarmes desnecessários que podem promovem sua fadiga. A utilização segura de bombas de infusão demanda uma equipe que monitore suas práticas e atue promovendo mudanças no contexto de trabalho

Objective: to identify the causes of alarm fatigue in studies of infusion pump usability in pediatric intensive care. Methods: an integrative review was carried out in the LILACS, SciELO, IBECS, SCOPUS and MEDLINE databases. Results: 1,164 publications were identified and six primary studies were selected that emerged in two themes: understanding the causes of the infusion pump alarms that consisted of: incomplete drug library, absolute and strict relative limits, lack of preparation protocol and medication administration, employee vacation period; and measures that can prevent fatigue from your alarms. Conclusion: the causes of alarm fatigue involve low user interaction with the equipment, inadequate work processes and low investment in preventive measures for its occurrence The safe use of infusion pumps requires a team to monitor their practices and act by promoting changes in the work context

Objetivo: identificar las causas de la fatiga de alarma en estudios de usabilidad de bombas de infusión en cuidados intensivos pediátricos. Métodos: se realizó una revisión integradora en las bases de datos LILACS, SciELO, IBECS, SCOPUS y MEDLINE. Resultados: se identificaron 1.164 publicaciones y se seleccionaron seis estudios primarios que surgieron en dos temas: comprender las causas de las alarmas de la bomba de infusión que consistían en: biblioteca de medicamentos incompleta, límites relativos absolutos y estrictos, falta de protocolo de preparación y administración de medicamentos, período de vacaciones de los empleados; y medidas que pueden prevenir la fatiga de sus alarmas. Conclusión: las causas de la fatiga de las alarmas involucran baja interacción del usuario con el equipo, procesos de trabajo inadecuados y baja inversión en medidas preventivas para su ocurrencia. El uso seguro de las bombas de infusión requiere que un equipo monitoree sus prácticas y actúe promoviendo cambios en el contexto de trabajo

Usability of volumetric infusion pumps in pediatric intensive care / Usabilidad de bombas de infusión volumétrica en cuidados intensivos pediátricos / Usabilidade de bombas de infusão volumétricas em terapia intensiva pediátrica

ABSTRACT Objective: To analyze the usability of two infusion pump models in a Pediatric Intensive Care Unit. Method: This is a cross-sectional study of exploratory descriptive quantitative approach. A task was carried out in a controlled environment using infusion pump with 72 nursing staff members from August to September 2018. The Methodological Guideline for Medical Care Equipment Assessment Studies and the quality model proposed by NBR ISO/IEC 9126-1 were followed. Descriptive statistical analysis was used applying Fisher's exact test, binomial test and Mann-Whitney test. Results: 91.7% of tasks were completed. The infusion pump-2 model was associated (p < 0.001) with operationalization, tasks accomplished with non-conformities, use of a manual calculator (measure effectiveness) and task accomplishment time (measure efficiency). Conclusion: Efficacy and efficiency measures can evidence a better context of usability of IPs and identify interaction failures with the nursing staff to be improved in care practice.

RESUMEN Objetivo: Analizar la usabilidad de dos modelos de bombas de infusión en una Unidad de Cuidados Intensivos Pediátricos. Método: Estudio transversal con abordaje descriptivo exploratorio cuantitativo. Se realizó una tarea en ambiente controlado utilizando la bomba de infusión con 72 integrantes del equipo de enfermería de agosto a septiembre de 2018. Como base, se siguió la guía metodológica para los estudios de evaluación de Equipos de Asistencia Médica y el modelo de calidad en uso propuesto por NBR ISO/IEC 9126-1 Se utilizó análisis estadístico descriptivo, aplicando Test Exacto de Fisher, Test Binomial y Test de Mann-Whitney. Resultados: Hubo 91,7% de tareas completadas. El modelo de bomba de infusión-2 se asoció (p <0,001) con la operatividad, las tareas cumplidas con no conformidades, el uso de la calculadora manual (medida de efectividad) y el tiempo para completar la tarea (medida de eficiencia). Conclusión: Las medidas de eficacia y eficiencia pueden mostrar un mejor contexto de usabilidad de las bombas de infusión e identificar fallas de interacción con el equipo de enfermería para mejorar en la práctica asistencial.

RESUMO Objetivo: Analisar a usabilidade de dois modelos de bomba de infusão em Unidade de Terapia Intensiva Pediátrica. Método: Estudo com delineamento transversal de abordagem quantitativa do tipo descritivo exploratório. Realizou-se em um ambiente controlado uma tarefa utilizando a bomba de infusão com 72 integrantes da equipe de enfermagem no período de agosto a setembro de 2018. Como base, seguiu-se a diretriz metodológica para estudos de avaliação de Equipamentos Médicos-Assistenciais e o modelo de qualidade em uso proposto pela NBR ISO/IEC 9126-1. Utilizou-se a análise estatística descritiva, aplicando o Teste Exato de Fisher, o Teste Binomial e o Teste de Mann-Whitney. Resultados: Constataram-se 91,7% de tarefas cumpridas. O modelo da bomba de infusão-2 apresentou associação (p < 0,001) com a operacionalização, tarefas cumpridas com não conformidades, uso da calculadora manual (medida eficácia) e o tempo para cumprir a tarefa (medida eficiência). Conclusão: Medidas de eficácia e eficiência podem evidenciar um melhor contexto de usabilidade de bombas de infusão e identificar falhas de interação com a equipe de enfermagem a serem aprimoradas na prática assistencial.

Otimização multiobjetivo da operação de sistemas de distribuição de água com bombas de rotação variável / Multiobjective optimization of the operation of water distribution systems with variable speed pumps

RESUMO Ante o crescimento populacional urbano e a importância da água como recurso natural limitado, verifica-se a necessidade de implementar técnicas com a finalidade de reduzir os custos operacionais dos sistemas de distribuição de água e garantir abastecimento adequado. A otimização da operação de bombas pode ser utilizada com o propósito de atender às demandas de consumo com menor custo energético, além de maximizar a confiabilidade hidráulica. Neste trabalho, um modelo híbrido de otimização/simulação foi desenvolvido tendo como suporte os algoritmos genéticos multiobjetivo e o simulador hidráulico EPANET. O método Non-dominated Sorting Genetic Algorithm II (NSGA II) foi utilizado para a otimização da operação de bombas de rotação variável, ou seja, as variáveis de decisão do problema foram as rotações das bombas para cada hora ao longo do dia. Uma modificação do simulador hidráulico EPANET original, que não computa corretamente o rendimento de bombas de rotação variável, foi empregada para que as potências de cada bomba e, consequentemente, o custo da energia elétrica fossem calculados corretamente. Conjuntos de soluções não dominadas (frente Pareto) foram obtidos considerando-se, primeiramente, a penalidade de pressão negativa nos nós e, posteriormente, as penalidades de pressão negativa nos nós e o fechamento/desligamento de tubos e/ou bombas. Aplicou-se o método à rede hipotética denominada Anytown, e custos menores, considerando tarifas brasileiras, foram obtidos.

ABSTRACT Faced with the urban population growth and the importance of water as a limited natural resource, there is a need to implement techniques to reduce the operational costs of water distribution systems and ensure adequate supply. The optimization of pump operation can be used to meet the demands of consumption with a lower energy cost, in addition to maximizing hydraulic reliability. In this work, a hybrid optimization/simulation model was developed based on the multiobjective genetic algorithms and the EPANET hydraulic simulator. The NSGA II (Non-dominated Sorting Genetic Algorithm II) method was used to optimize the operation of variable rotation pumps, that is, the decision variables of the problem were the rotation of the pumps for each hour throughout the day. A modification of the original EPANET hydraulic simulator, which does not correctly compute the efficiency of variable-speed pumps, was employed so that the power of each pump, and consequently the cost of electric power, was calculated correctly. Non-dominated solution sets (Pareto Front) were obtained considering first the negative pressure penalty at the nodes and, subsequently, the negative pressure penalties at the nodes and the closure/shutdown of tubes and/or pumps. The method has been applied in the hypothetical network called ANYTOWN and lower energy costs were obtained considering Brazilian energy tariffs.

Uso da bomba de infusão em terapia intensiva: perspectivas da equipe de enfermagem / Uso de la bomba de infusión en cuidados intensivos: perspectivas del equipo de enfermería / Use of the infusion pump in intensive care: perspectives of the nursing team

Objetivo: analisar as percepções dos profissionais de enfermagem sobre o uso da Bomba de Infusão no seu cotidiano em Terapia Intensiva. Método: estudo descritivo-exploratório de abordagem qualitativa, realizado com 15 profissionais de enfermagem da Unidade de Terapia Intensiva Adulto de um hospital-escola público do Paraná. A coleta de dados ocorreu em junho/2017, por meio de entrevistas semiestruturadas gravadas, pautadas na questão norteadora: fale-me sobre o uso da bomba de infusão no seu cotidiano de trabalho. Aos dados transcritos, empregou-se a Análise de Conteúdo. Resultados: foram pontuados aspectos positivos e negativos acerca do uso da bomba de infusão, além de sugestões gerais ao seu propósito. Considerações Finais: apesar dos entrevistados perceberem a Bomba de Infusão como viabilizadora da assertividade na infusão volêmica, existem desvantagens relacionadas ao sensor de gotas e alarme. Como sugestões de melhorias, referiam necessidade de otimizar o design da Bomba de Infusão, especialmente a programação de alarmes.

Objective: to analyze the perceptions of nursing professionals about the use of the Infusion Pump in their daily lives in Intensive Care. Method: descriptive-exploratory study, with a qualitative approach, conducted with 15 nursing professionals working in the Intensive Care Unit for Adults of a public teaching hospital in Paraná. Data collection took place in June/2017, through recorded semi-structured interviews, based on the guiding question: could tell me about the use of the infusion pump in your daily work? As for the transcribed data, Content Analysis was employed. Results: positive and negative aspects were highlighted regarding the use of the infusion pump, besides general suggestions for its purpose. Final considerations: although the interviewees perceive the Infusion Pump as a viable way for the assertiveness in volemic infusion, there are disadvantages related to the drop and alarm sensor. As for suggestions for improvements, it was mentioned the need to optimize the design of the Infusion Pump, especially the alarm programming.

Objetivo: analizar las percepciones de los profesionales de enfermería sobre el uso de la Bomba de Infusión en su vivir cotidiano en Cuidados Intensivos. Método: estudio descriptivo-exploratorio con enfoque cualitativo, realizado con 15 profesionales de enfermería de la Unidad de Cuidados Intensivos para Adultos de un hospital público de enseñanza en Paraná. La recopilación de datos ocurrió en junio/2017, mediante entrevistas semiestructuradas grabadas, basadas en la pregunta orientadora: ¿podrías contarme sobre el uso de la bomba de infusión en su trabajo cotidiano? Para los datos transcritos, se empleó el Análisis de Contenido. Resultados: se señalaron aspectos positivos y negativos acerca del uso de la bomba de infusión, además de sugerencias generales para su propósito. Consideraciones finales: aunque los entrevistados perciben que la Bomba de Infusión es viable para la asertividad en la infusión volémica, existen desventajas relacionadas con el sensor de gotas y alarma. Como sugerencias de mejoras, se mencionó la necesidad de perfeccionar el design de la Bomba de Infusión, especialmente la programación de alarmas.

Handling errors in conventional and smart pump infusions: A systematic review with meta-analysis / Errores de manejo en la bomba de infusión convencional y smart pump: revisión sistemática con metaanálisis / Erros de manuseio na bomba de infusão convencional e smart pump: revisão sistemática com metanálise

Abstract Objective: To identify the scientific evidence on the frequency of handling errors of conventional and smart pump infusions in intravenous insulin therapy in intensive care units. Method: A systematic review with meta-analysis conducted in the Virtual Health Library, MEDLINE via PubMed, Scopus and Web of Science databases. Articles were assessed regarding the level of evidence by applying the Oxford Center for Evidence-Based Medicine Evidence Scale. Results: Twelve (12) publications were selected which met the eligibility criteria. The programming error rate using the conventional infusion pump ranged from 10% to 40.1%, and the smart pump technology error rate ranged from 0.3 to 14%. The meta-analysis of two studies favored the smart pump in reducing the relative risk of programming errors by 51%. Conclusion: Based on selected articles, the smart pump reduces the risk of programming errors.

Resumen Objetivo: Identificar las evidencias acerca de la frecuencia de errores en el manejo de las bombas de infusión convencional y smart pump en la terapia insulínica intravenosa en unidades de cuidados intensivos. Método: Revisión sistemática con metaanálisis llevada a cabo en las bases de datos Biblioteca Virtual de Saúde, MEDLINE por vía PubMed, Scopus y Web of Science. Los artículos fueron evaluados en cuanto al nivel de evidencia por la aplicación de la Escala de Evidencia del Oxford Centre for Evidence-Based Medicine. Resultados: Se seleccionaron 12 publicaciones que atendieron los criterios de elegibilidad. El índice de errores de programación utilizando la bomba de infusión convencional varió del 10% al 40,1% y en la tecnología smart pump varió del 0,3% al 14%. El metaanálisis de dos estudios fue favorable a la smart pump en la reducción del riesgo relativo de errores de programación en el 51%. Conclusión: Considerando como base los artículos seleccionados, la smart pump reduce el riesgo de errores de programación.

Resumo Objetivo: Identificar as evidências científicas acerca da frequência de erros no manuseio das bombas de infusão convencional e smart pump na terapia insulínica intravenosa em unidades de cuidados intensivos. Método: Revisão sistemática com metanálise realizada nas bases de dados Biblioteca Virtual de Saúde, MEDLINE via PubMed, Scopus e Web of Science. Os artigos foram avaliados quanto ao nível de evidência pela aplicação da Escala de Evidência do Oxford Centre for Evidence-Based Medicine. Resultados: Foram selecionadas 12 publicações que atenderam aos critérios de elegibilidade. A taxa de erros de programação usando a bomba de infusão convencional variou de 10% a 40,1% e na tecnologia smart pump variou de 0,3 a 14%. A metanálise de dois estudos foi favorável a smart pump na redução do risco relativo de erros de programação em 51%. Conclusão: Considerando como base os artigos selecionados, a smart pump reduz o risco de erros de programação.

Molecular characteristics of Acinetobacter baumannii and the changes of efflux pump expression under tigecycline pressure / 医学研究生学报

Objective　Acinetobacter baumannii (A. baumannii) is a commonly infective bacterium in the hospital. This study aims to analyze its molecular epidemiological characteristics, detect the carrying rate of efflux pump and regulatory protein genes, and investigate the effects of tigecycline on the efflux pump and expression of regulatory protein genes.　Methods　A total of 183 A. baumannii strains were collected from inpatients of the affiliated hospital of Jiangsu University from May 2017 to March 2019. They were divided into an antimicrobial-resistant group (one or more antimicrobial-resistant strains, 139 strains) and a sensitive group (the drugs in the drug sensitivity test were all non-resistant strains, 44 strains). Repeated sequence PCR was used for homology analysis of the strains, and pulse-field gel electrophoresis (PFGE) was used as the gold standard for homology analysis to verify and compare some strains. PCR was used to detect the occurrence of drug resistance-related genes. Based on homology analysis, efflux pump carrying rate detection and antibiotics sensitivity test results, 6 clinical strains carrying all efflux pump genes but different resistance phenotypes were selected as experimental strains, including sensitive strains (SAB), the multidrug resistance strain (MDRAB) and the extensively drug-resistant strain (XDRAB). All strains were induced in vitro with the minimum inhibitory concentration (MIC) of tigecycline. The induced strains were categorized as induction group, and the same strains cultured in LB agar without tigecycline was used as a control group. MIC was used to analyze the tigecycline susceptibility, and RT-qPCR was used to detect the gene expression of efflux pumps, such as TetB, AbaQ and regulatory proteins (AdeS and BaeS), in drug-resistant strains.　Results　Homology analysis showed that there were 45 clonal groups in the detected clinical isolates, with no obvious outbreak of epidemic clonal groups. Efflux pumps and regulatory proteins were widely distributed in the clinical isolates, and the expression of AdeB, TetB, AbeS, AdeS in MDRAB and XDRAB is significantly higher than that insensitive group SAB. Continuous in vitro induction with tigecycline could increase the antimicrobial resistance of some clinical strains and even significantly increase the expression levels of efflux pumps and regulatory proteins.　Conclusion　A. baumannii is widely distributed in the clinic, and efflux pumps and regulatory proteins might play an important role in drug resistance process. The unreasonable use of tigecycline could enhance the tolerance of A. baumannii by up-regulating the expression of some bacterial efflux pumps.

Is the efflux pump inhibitor Verapamil a potential booster for isoniazid against Mycobacterium tuberculosis?

The membrane-based efflux pump systems are recognized to have an important role in pathogenicity and drug resistance in Mycobacterium tuberculosis by the extrusion of toxic substrates and drugs from the inner bacillus. This study aimed to investigate the in vitro interaction of Verapamil (VP), an efflux pump inhibitor, with the classical first-line anti-tuberculosis drug isoniazid (INH) in resistant and susceptible M. tuberculosis clinical isolates. Seven multidrug-resistant (MDR), three INH monoresistant and four susceptible M. tuberculosis clinical isolates were tested for the INH and VP combination by modified Resazurin Microtiter Assay Plate (REMA). Fractional Inhibitory Concentration (FIC) and Modulation Factor (MF) were determined. The INH plus VP combination showed no significant change in the Minimum inhibitory concentration (MIC) values of INH (FIC≥ 0.5; MF=1 or 2).The use of VP in tuberculosis therapy should be managed carefully, considering the resistance caused by specific mutation in katG and inhA genes, in which the use of these EPIs may have no success. The use of EPIs as an adjunctive drug in the anti-tuberculosis therapy should be further investigated on a larger number of M. tuberculosis clinical isolates with different resistant profile.

Multimodal intrathecal therapy for phantom limb pain: a report of 2 cases / Terapia intratecal multimodal para tratamiento de dolor de miembro fantasma: Reporte de dos casos

Abstract Introduction: Phantom limb pain (PLP) is a chronic debilitating condition, frequently observed in amputees. At present, there is no standard treatment, and its optimal management requires a multidisciplinary approach in which minimally invasive treatment should be considered in more complex cases. Objective: To report successful treatment of 2 cases of PLP treated with ziconotide as part of multimodal intrathecal management. Materials and methods: Descriptive, retrospective case report developed in a multimodal pain treatment unit. Results: A total of 2 cases of patients with diagnosis of PLP refractory to medical therapy, treated with intrathecal multimodal therapy, are presented. Their favorable course, with 50% pain reduction, is described. Conclusion: Implantation of infusion systems for administration of intrathecal analgesia with ziconotide at the cervical and supraspinal level proved to be effective in the described cases; this technique should be evaluated in specific trials for the treatment of PLP refractory to other therapies.

Resumen Introducción: El dolor de miembro fantasma es una condición crónica debilitante, frecuentemente observada en pacientes amputados. En la actualidad carece de un estándar de tratamiento. Su óptimo manejo requiere un abordaje multidisciplinario en el que el tratamiento mínimamente invasivo debe ser considerado en los casos más complejos. Objetivo: Reportar el éxito obtenido en dos casos de dolor de miembro fantasma tratados mediante ziconotida, como parte del manejo multimodal intratecal. Materiales y métodos: Se trata de un reporte de casos, descriptivo y retrospectivo, desarrollado en una unidad de tratamiento integral del dolor. Resultados: Se presentan dos casos de pacientes con diagnóstico de dolor de miembro fantasma refractario a tratamiento médico, tratados con terapia multimodal intratecal; se describe su evolución favorable después del inicio de la terapia, con una reducción de dolor del 50%. Conclusiones: La implantación de sistemas de infusión para administración de analgesia intratecal con ziconotida a nivel cervical y supraespinal demostró ser eficaz en los casos descritos; esta técnica debe ser evaluada en ensayos específicos para el tratamiento del dolor de miembro fantasma en miembros superiores, refractario a otras terapias.

Tratamiento de las complicaciones motoras en la enfermedad de Parkinson / Treatment of motor complications in Parkinson's disease

RESUMEN Las fluctuaciones motoras y las discinesias hacen parte de las complicaciones motoras que invariablemente se presentarán con la progresión y avance de la enfermedad de Parkinson. Se estima que el 90 % de los pacientes las padecen después de 10 años de enfermedad. El tratamiento de estas condiciones requiere entender el patrón, las características y el tipo de fluctuaciones o discinesias de cada paciente. En este capítulo se realiza una revisión detallada sobre cada una de estas complicaciones motoras y se muestran los algoritmos para su abordaje y manejo, incluyendo las indicaciones y recomendaciones de las terapias avanzadas disponibles en Colombia, como la cirugía de estimulación cerebral profunda y la apomorfina subcutánea.

SUMMARY Motor fluctuations and dyskinesias are complications that invariably occur with the progression of Parkinson's disease, affecting about 90 % of patients after ten years of disease. The treatment of these conditions requires an understanding of the pattern, features and type of motor fluctuations and dyskinesias in each patient. In this chapter, the characteristics of motor complications are reviewed and the strategies and algorithms for its management are described, including the indications and recommendations of the available advanced therapies in Colombia, such as functional neurosurgery and subcutaneous apomorphine.

Adherencia y potenciales eventos adversos prevenidos durante la administración de medicamentos endovenosos empleando bombas de infusión inteligentes en cuatro unidades de cuidados intensivos en Colombia / Adherence and potential adverse events prevented during the administration of intravenous medications using Smart infusion pump in four intensive care units in Colombia

Resumen Introducción: Las bombas de infusión inteligentes, constituyen una herramienta útil para la administración segura de medicamentos endovenosos dado que permiten prevenir potenciales eventos adversos. Objetivo: Evaluar la adherencia y los potenciales eventos adversos prevenidos, durante la administración de medicamentos endovenosos empleando bombas de infusión inteligentes. Metodología: Estudio observacional, realizado en cuatro unidades de cuidados intensivos usando datos del software Hospira MedNetTM. Un análisis descriptivo fue llevado a cabo junto con un análisis bivariado empleando una prueba U de Mann-Whitney, una prueba de Kruskal-Wallis y un test de Bonferroni para evaluar la adherencia y los potenciales eventos adversos prevenidos por año y servicio. Resultados: La adherencia fue del 74,0%, se presentaron 78.299 alertas de seguridad y se previnieron 4,54% (n=16.288) potenciales eventos adversos. Se encontraron diferencias entre el primer y segundo año en la adherencia [Mediana: 69,15 (Q1:64,2-Q3:75,5) Vs Mediana: 84,2(Q1:72,15-Q3:89,05), p<0.001], adherencia a la seguridad [Mediana: 87,1% (Q1:83,05-Q3:91,2) Vs Mediana: 94,05 (Q1:89,95-Q3:96,2), p<0.001] y las ediciones de alertas de limite relativo [Mediana:17,0 (Q1:8,5-Q3:24,5) Vs Mediana: 12,0 (Q1:7,0-Q3:17,5), p=0.013]. La solución salina, la norepinefrina, el lactato de ringer, la piperacilina-tazobactam, la nitroglicerina y la heparina presentaron el mayor número de alertas de seguridad. Conclusión: Se encontró una buena adherencia (uso de la farmacoteca) y adherencia a la seguridad (indicador de uso de la bomba), con una reducción de los potenciales eventos adversos; así el uso de bombas inteligentes podría contribuir en la prevención de potenciales errores durante la administración de medicamentos endovenosos en la unidad de cuidados intensivos.

Abstract Introduction: Smart infusion pumps have become a useful tool for the safe administration of intravenous medications, since they allow the prevention of potential adverse events. Objetive: To assess adherence and potential adverse events prevented during intravenous medication administration using smart infusion pumps. Methods: Observational study, conducted in four intensive care units using data from Hospira MedNetTM software. A descriptive analysis was carried out together with a bivariate analysis using a Mann-Whitney U test, a KruskalWallis test and a Bonferroni test to assess adherence and potential adverse events prevented by year and service. Results: Adherence was 74.0%, 78,299 safety alerts were presented and 4.54% (n = 16,288) potential adverse events were prevented. Differences were found between the first and second year in adherence [Median: 69.15 (Q1: 64.2-Q3:75.5) versus Median: 84.2 (Q1: 72.15-Q3: 89.05), p<0.001]. Likewise safety adherence [Median: 87.1% (Q1: 83.05-Q3: 91.2) versus Median: 94.05 (Q1: 89.95-Q3: 96.2), p<0.001] and the relative limit alert editions [Median: 17.0 (Q1: 8.5-Q3: 24.5) versus Median: 12.0 (Q1: 7.0-Q3: 17.5), p=0.013]. The saline solution, norepinephrine, ringer's lactate, piperacillin-tazobactam, nitroglycerin and heparin presented the highest number of safety alerts. Conclusions: Adequate adherence (use of the drug library) and safety adherence (indicator of pump use) were found, with a reduction in potential adverse events; thus, the use of smart pumps could contribute to the prevention of potential errors during the administration of intravenous medications in the intensive care unit.

El ABC de la analgesia controlada por el paciente / The ABCs of patient-controlled analgesia

Resumen La analgesia controlada por el paciente (PCA, por sus siglas en inglés: patient controlled analgesia) es la administración continua y/o intermitente de analgésicos opioides y no opioides a través de un dispositivo con dosis a demanda y control del paciente. Su mecanismo de acción antinociceptivo tiene efecto en la percepción del control del dolor por el propio paciente, en sinergia, con la acción de los medicamentos. Bajo el concepto de concentración mínima efectiva analgésica, las bombas PCA permiten mantener las concentraciones plasmáticas estables de los fármacos, particularmente de los opioides, disminuyendo la carga de atención al personal de enfermería y la administración de medicamentos «por razón necesaria¼. Las bombas de PCA cuentan con un intervalo de seguridad que impide la sobredosificación por intentos repetitivos de activación por el paciente de las dosis en bolos, y se ha demostrado que brindan mejores resultados en la analgesia durante las primeras 24 horas (nivel de evidencia moderada). Las rutas más utilizadas son la vía intravenosa y la vía epidural. En esta revisión se presentan los pasos básicos para el uso de estos dispositivos, preparación y programación de bolos o infusiones analgésicas, así como los pasos seguros que deben considerarse durante su empleo (visite http://www.painoutmexico.com para obtener el artículo completo y videos).

Abstract Patient-controlled analgesia (PCA) is the continuous and/or intermittent administration of opioid and non-opioid analgesics through a device with on-demand doses and patient control. Its mechanism anti-nociceptive has an effect on the perception of pain controlled by the patient himself, in synergy, with the action of the medications. Under the concept of minimum effective analgesic concentration, PCA pumps allow the stable plasma concentrations of the drugs, particularly opioids, to be maintained, reducing the nursing staff attention and the administration of drugs «for necessary reason¼. PCA pumps have a safety interval that prevents overdosing due to repetitive attempts by the patient to activate bolus and has been shown to provide better analgesia during the first 24 hours (moderate level of evidence). The most commonly routes are the intravenous and the epidural. In this review we present the basic steps for the use of these devices, preparation and programming of boluses or analgesic infusions, as well as safety steps during their use (visit http://www.painoutmexico.com to see the full article and videos).

Literature Review on Prophylaxis of Deep Venous Thrombosis and Pulmonary Embolism

Background: Deep Venous Thrombosis (DVT) and subsequent Pulmonary Embolism (PE) are one of the mosteminent causes of preventable deaths in nosocomial settings. The prevalence is increasing and they have variableclinical presentations encountered in community settings as well as hospitalized patients requiring timely andobligatory prophylaxis. Objective: This study aims to review prophylactic measures for deep venousthrombosis/pulmonary embolism highlighting implemented pharmacologic and mechanical interventions, newerand yet investigational techniques such as neuromuscular electrical stimulation towards reducing prevalence ofvenous thromboembolism. Materials and Methods: A review of relevant articles published between the years of2000 to 2019 in English language was done using the databases of PubMed Pico, Google Scholar and Google,using the predetermined keywords. Conclusion: Venous thromboembolism prevalence is increasing and amongthe various available methods for thromboprophylaxis, pharmacologic approach is the most superior whichinvolves making use of either unfractioned or low molecular weight heparin although the most efficacious is lowmolecular weight heparin as evidenced by several meta-analyses. Anticoagulants have numerous side effectsleading to limitations of their use and in such situations, mechanical methods such as intermittent pneumaticcompression (most effective), graduated compression stockings, and venous foot pump scan can be used. Incircumstances where both medicines and mechanical approach become impractical, neuromuscular electricalstimulation can be implemented even though additional research is required to further elucidate its efficacy andimplications.

Dos distúrbios psiquiátricos à antibioticoterapia: reposicionamento da clorpromazina como agente antibacteriano / From psychiatric disorders to antibiotic therapy: repositioning of chlorpromazine as an antibacterial agent

RESUMO O alarmante aumento na taxa de resistência aos antibióticos põe em check à eficácia da terapia antibacteriana futura. Em contrapartida, as indústrias farmacêuticas negligenciam os investimentos em pesquisa e desenvolvimento de novos fármacos antimicrobianos em virtude de questões financeiras, legais e farmacológicas. Assim sendo, o reposicionamento de agentes disponíveis clinicamente torna-se uma promissora ferramenta para tentar driblar o desinteresse das indústrias. O fármaco antipsicótico clorpromazina (CPZ) destaca-se por possuir uma ampla faixa de atividade antibacteriana, a qual cobre desde patógenos Gram-positivos e Gram-negativos, até as mico-bactérias. A atividade antibacteriana é independente do perfil de susceptibilidade do microrganismo, sendo ela mantida mesmo em cepas altamente resistentes aos antibióticos. Alguns estudos mostram que mesmo nas concentrações clinicamente disponíveis no plasma (entre 0,1-0,5 (g/mL), a CPZ é capaz de matar Staphylococcus aureus e Mycobacterium tuberculosis dentro dos macrófagos. Em adição, estudos clínicos têm revelado os benefícios do uso da CPZ na terapia de suporte para pacientes com infecções em curso. Em conclusão, a CPZ pode eventualmente ser direcionada ao arsenal terapêutico antimicrobiano, especialmente no manejo das infecções causadas por microrganismos intracelulares com fenótipo multirresistente.

SUMMARY The substantial increase in the antibiotic resistance brings on an alarm to the future of the antibiotic therapy. However, the pharmaceutical industry has been neglecting its investments in new drug research and development, mainly because of the pharmacologic, financial and legal factors. Therefore, the drug repositioning of clinic available agents become a promising tool to bypass the lack of interest of the pharmaceutical industry. A drug used to treat psychoses, the Chlorpromazine (CPZ), stands out as a large spectrum antibiotic, which covers Gram-positive and Gram -negative bacteria, and also mycobacteria. Its antibacterial activity is not related to microorganism susceptibility profile, and it could be maintained even on strains highly resistant to the conventional antibiotics. Studies point out that even on serum concentrations clinically available, the CPZ can eliminate Staphylococcus aureus and Mycobacterium tuberculosis inside of macrophages. In addition, clinical trials have revealed its benefits on support therapy for patients suffering from active infections. As a result, the CPZ could be used as an optional antibiotic therapy, especially in case of infections due to intracellular microorganisms with multidrug resistance phenotype.

Efflux pump inhibitors for bacterial pathogens: From bench to bedside

With the advent of antibiotics, bacterial infections were supposed to be a thing of past. However, this instead led to the selection and evolution of bacteria with mechanisms to counter the action of antibiotics. Antibiotic efflux is one of the major mechanisms, whereby bacteria pump out the antibiotics from their cellular interior to the external environment using special transporter proteins called efflux pumps. Inhibiting these pumps seems to be an attractive strategy at a time when novel antibiotic supplies are dwindling. Molecules capable of inhibiting these pumps, known as efflux pump inhibitors (EPIs), have been viewed as potential therapeutic agents that can rejuvenate the activity of antibiotics that are no longer effective against bacterial pathogens. EPIs follow some general mechanisms of efflux inhibition and are derived from various natural as well as synthetic sources. This review focuses on EPIs and identifies the challenges that have kept these futuristic therapeutics away from the commercial realm so far.

Effectiveness of continuous hypertonic saline infusion with an automated infusion pump for decompressive neuroplasty: a randomized clinical trial

BACKGROUND: Hypertonic saline (HS) injections for decompressive neuroplasty (DN) can cause pain. We assessed whether a continuous infusion of HS through an infusion pump would reduce injection-related pain compared with repeated bolus administrations. METHODS: Fifty patients scheduled for DN were randomized to either the bolus injection or the continuous infusion group. After appropriately placing the epidural catheter, 4 mL of 5% NaCl was injected as four boluses of 1 mL each at 15-minute intervals or infused over 1 hour using an infusion pump. The severity of pain induced by HS injection, as measured by the 11-point numerical rating scale (NRS), was the primary outcome. The severity of low back or lower extremity pain, as measured by the 11-point NRS and Oswestry Disability Index (ODI), 3 months following the procedure, was the secondary outcome. RESULTS: Data from 21 patients in the bolus group and 23 in the continuous infusion group were analyzed. No statistically significant difference in injection-related pain was identified between the two groups during the initial HS administration (P = 0.846). However, there was a statistically significant reduction in injection-related pain in the continuous infusion group compared to the bolus injection group from the second assessment onwards (P = 0.001, < 0.001, and < 0.001, respectively). No significant between-group differences in the NRS and ODI scores 3 months post-procedure were noted (P = 0.614 and 0.949, respectively). CONCLUSIONS: Our study suggests that administering HS through a continuous infusion is a useful modality for reducing HS injection-related pain during DN.