Uso de antimicrobianos en la unidad de cuidados intensivos de un hospital público de Loreto / Use of antimicrobials in the intensive care unit of a Loreto public hospital

RESUMEN Introducción. El uso inapropiado de antimicrobianos en las unidades de cuidados intensivos (UCI) contribuye a la resistencia bacteriana. Objetivo. El propósito del presente estudio fue medir el uso y tipo de antimicrobianos en los pacientes hospitalizados en la Unidad de Cuidados Intensivos del Hospital Regional de Loreto (HRL). Métodos. Estudio de tipo descriptivo. Revisamos 120 historias clínicas en pacientes de UCI-HRL desde enero a junio 2023. Resultados. La mayoría de los pacientes usaron antimicrobianos (74,2%), indicados por shock séptico (42,7%), de 1 a 3 antimicrobianos (93,2%), con terapia de 1 a 3 días (45%). Del total de antimicrobianos usados, la mayor proporción fueron bactericidas 89 (90,4%), de la familia de cefalosporinas (33,1%) y carbapenémicos (23,5%); los fármacos más empleados fueron ceftriaxona (26,5%) y meropenem (21,1%) por vía intravenosa (90,4%). Conclusión. La mayor proporción de pacientes hospitalizados usan antimicrobianos de la familia de cefalosporinas y carbapenémicos.

ABSTRACT Introduction. Inappropriate use of antimicrobials in the Intensive Care Unit (ICU) contributes to bacterial resistance. Objective. The purpose of the present study was to measure the use and type of antimicrobials in patients hospitalized in the Intensive Care Unit of the Loreto Regional Hospital (HRL). Methods. Descriptive study. We reviewed 120 medical records in ICU-HRL patients from January to June 2023. Results. Most patients used antimicrobials (74.2%), indicated for septic shock (42.7%), 1 to 3 antimicrobials (93.2%), with therapy of 1 to 3 days (45%). Of the total number of antimicrobials used, the greatest proportion were bactericides 89 (90.4%), from the cephalosporin family (33.1%) and carbapenemics (23.5%); the most commonly used drugs were ceftriaxone (26.5%) and meropenem (21.1%) by the intravenous route (90.4%). Conclusion. The highest proportion of hospitalized patients use antimicrobials of the cephalosporin and carbapenemics family.

Administração de anti-infecciosos em pacientes críticos: gestão proativa de riscos / Administration of anti-infectives in critically ill patients: proactive risk management / Administración de antiinfecciosos en pacientes críticos: gestión proactiva del riesgo

Objetivo: analisar a gestão de riscos proativa do processo de administração de anti-infecciosos em Unidade de Terapia Intensiva. Método: estudo qualitativo, em pesquisa-ação, com observação participante e grupo focal, realizado de 2019 a 2021. Foi mapeado o processo, analisados os riscos, planejadas ações de melhorias e redesenhado o processo. Resultados: a prescrição ocorria em sistema eletrônico e os registros da administração em impressos. O processo de administração de anti-infecciosos possuía 19 atividades, dois subprocessos, 16 modos de falhas e 23 causas potenciais. Os modos de falhas foram relacionados à assepsia e erro de dose no preparo de anti-infecciosos e as causas apontadas foram a falha humana na violação das técnicas e o lapso de memória. Cinco especialistas redesenharam o processo resultando em alterações de atividades e no sistema. Conclusão: a gestão de riscos proativa aplicada ao processo de administração de anti-infecciosos propiciou identificar riscos, suas causas e priorizar ações de melhorias, o que pode viabilizar tomadas de decisões apropriadas(AU)

Objective: to analyze the proactive risk management of the anti-infective administration process in an Intensive Care Unit. Method: qualitative study, in action research, with participant observation and focus group, from 2019 to 2021. The process was mapped, risks analyzed, improvement actions planned and the process redesigned. Results: the prescription occurred in an electronic system and the administration records in printed form. The anti-infective administration process had 19 activities, two sub-processes, 16 failure modes and 23 potential causes. The failure modes were related to asepsis and dose error in the preparation of anti-infectives and the identified causes were human error in violating techniques and memory lapse. Five specialists redesigned the process resulting in changes in activities and in the system. Conclusion: proactive risk management applied to the anti-infective administration process was effective in identifying risks, their causes and prioritizing improvement actions(AU)

Objetivo: analizar la gestión proactiva de riesgos del proceso de administración de antiinfecciosos en una Unidad de Cuidados Intensivos. Método: estudio cualitativo, en investigación-acción, con observación participante y grupo focal, que tuvo lugar del 2019 al 2021. Se mapeó el proceso, se analizaron los riesgos, se planificaron acciones de mejora y se rediseñó el proceso. Resultados: la prescripción ocurrió en sistema electrónico y los registros de administración en forma impresa. El proceso de administración de antiinfecciosos tuvo 19 actividades, dos subprocesos, 16 modos de falla y 23 causas potenciales. Los modos de falla estuvieron relacionados con la asepsia y error de dosis en la preparación de antiinfecciosos y las causas identificadas fueron error humano por violación de técnicas y lapsus de memoria. Cinco especialistas rediseñaron el proceso generando cambios en las actividades y en el sistema. Conclusión: la gestión proactiva de riesgos aplicada al proceso de administración de antiinfecciosos fue efectiva para identificar riesgos, sus causas y priorizar acciones de mejora, lo que puede factibilizar la toma de decisiones adecuadasa(AU)

The bactericidal mechanisms of carbon monoxide and the feasibility of carbon monoxide-releasing molecules as anti-infective drugs / 药学学报

The bactericidal mechanism of carbon monoxide (CO) and the feasibility of CO-releasing molecules as anti-infective drugs were summarized by consulting scientific literature, combined with our own research work. Anaerobic bacteria are usually tolerant to high concentration of CO, and some can even grow with CO as sole carbon or energy source, but most pathogenic bacteria are sensitive to CO. In view of the difficulty of gaseous CO in controlling the applying dose and the action site, CO release molecules were synthesized. CO release molecules not only have higher bactericidal activities against common pathogenic bacteria than gaseous CO, but also have the ability to kill antibiotics-resistant bacteria and destroy their biofilms. CO mainly binds with heme-Fe2+ in cells, interrupting the electron transfer of respiration chains, which would result in the generation of reactive oxygen species. CO can also disturb intracellular ion balance, which further triggers free radical reactions. Due to its diverse acting targets, uneasy to induce drug resistance, and synergistic effect with other antibiotics, CO is expected to be the next generation of anti-infection drugs.

Comparison and enlightenment of anti-infective medicines between WHO model list of essential medicines for children，essential medicine list of WHO and national essential medicine list / 中国药房

OBJECTIVE To provide suggestions and reference for enriching the selection of anti-infective medicines for children in China and promoting the establishment of the Essential Medicine List for Children in China. METHODS Descriptive analysis method was used to statistically compare the differences and similarities of anti-infective medicines included in the World Health Organization Model List of Essential Medicines for Children （EMLc）， World Health Organization Model List of Essential Medicines （EML） and National Essential Medicine List （NEML） in terms of drug category， variety， dosage form， specification， symbol mark， etc. RESULTS All anti-infective medicines of EMLc were covered by EML （85.3%）. NEML lacked the information of anti-infective medicines relatively， and contained few new categories； for example， the third-generation and above cephalosporins in EMLc were not included， and the drug dosage forms were also relatively limited （mainly tablets， capsules and injections）， but the specifications were relatively rich. CONCLUSIONS With reference to EMLc， the guidance on the use of essential medicines for children in China should be added from the aspects of age， body weight， combined medication， etc.， and the dosage forms suitable for children such as oral liquid preparations and scored tablets should be added to NEML； when updating the NEML the newer drugs suitable for children such as cefixime and dacatavir should be included. Finally， with reference to the continuity of EML and EMLc， the Essential Medicine List for Children in China should be established based on NEML to meet the drug needs of children and promote the safe use of drugs in children.

Application of machine learning in the therapeutic drug monitoring and individual drug therapy / 中国药房

Machine learning has been applied in the medical field due to its powerful data analysis and exploration capabilities. In recent years， more and more studies have applied it to therapeutic drug monitoring and individual drug therapy of immunosuppressants， anti-infective drugs， antiepileptic drugs， etc. Compared with the traditional population pharmacokinetic modeling methods， the constructed models based on machine learning can predict blood drug concentration and drug dose more accurately， improve the level of clinical precision drug use and reduce the occurrence of adverse drug reactions. Based on this， this article reviews the application of machine learning in therapeutic drug monitoring and individual drug therapy， with a view to providing theoretical basis and technical support for clinical precise drug use.

Curcumin Mediated Gold Nanoparticles and Analysis of its Antioxidant, Anti-inflammatory, Antimicrobial Activity Against Oral Pathogens

ABSTRACT Objective: To green synthesise gold nanoparticles using curcumin and to analyse its antioxidant, anti-inflammatory, and antimicrobial activity among oral pathogens. Material and Methods: Biosynthesised Curcumin Gold nanoparticles (CuAuNP) were evaluated by UV-visible spectrophotometer (UV-Vis), Transmission Electron Microscopy (TEM), and evaluation of antioxidant, anti-inflammatory and antibacterial activity against oral pathogens. Results: Synthesized CuAuNP were characterized using UV-visible spectrophotometry and showed peak absorption at 530nm. CuAuNp showed a 90.3% maximum scavenging ability of DPPH at a concentration of 50 μg/mL. CuAuNP exhibited 79.6 % of the highest anti-inflammatory activity at 50μg/mL than the standard drug diclofenac. TEM image clearly showed uniformly dispersed spherical-shaped gold nanoparticles with a size of about 20 nm. The biosynthesized nanoparticle was tested for its antimicrobial effect, and it showed a potent effect against S. aureus, E. faecalis, and C. albicans at 100µg/ mL. Enterococcus faecalis has a maximum zone of inhibition of 14 mm at 100µg/ mL of CuAuNp. Among gram-positive bacteria, a maximum zone of inhibition of 12 mm at 100µg/ mL was seen in S. aureus compared to S mutans. Candida albicans showed a maximum zone of inhibition of 18 mm at 25 μg/mL of CuAuNp. Conclusion: Curcumin-mediated gold nanoparticles with 20 nm size were effective and had strong antioxidant and anti-inflammatory activity at 50µg/ mL, antimicrobial action inhibiting microbes at 100µg/mL concentration that can be used in treating various Oral mucosal lesions.

Biofilme em parafusos ortopédicos prontos para uso adquiridos por meio de sistema de consiganação/comodato / Biopelícula en tornillos ortopédicos listos para uso adquiridos por medio del sistema de consignación/comodato / Biofilm on patient-ready orthopaedic screws acquired through the loaner system

Resumo Objetivo Avaliar a integridade da superfície e as condições microbiológicas de parafusos prontos para uso em bandejas ortopédicas após múltiplos processamentos. Métodos Após o processamento completo, as bandejas utilizadas em cirurgias de pequenos fragmentos, fornecidas por meio de sistema de consignação/comodato em um hospital brasileiro, foram selecionadas aleatoriamente durante quatro meses. Os parafusos mais utilizados (números 14, 16 e 18 - Grupo 1) e menos utilizados (números 10 e 38 - Grupo 2), portanto, os mais e menos expostos a agentes biológicos, químicos e físicos, foram aleatoriamente removidos e submetidos a inspeção visual (n=126), seguido de cultura bacteriana (n=6 parafusos/bandeja, 9 bandejas), teste de proteínas (n=6 parafusos/bandeja, 9 bandejas) e Microscopia Eletrônica de Varredura (MEV) (n=2 parafusos/bandeja, 9 bandejas). As culturas positivas foram submetidas a métodos automatizados de identificação bacteriana e suscetibilidade antimicrobiana. Resultados Foram detectadas ranhuras em 8,7% dos parafusos, predominantemente no Grupo 2 (8/11). Proteína residual foi detectada em 96,3%, e não houve diferença estatisticamente significativa na quantidade de proteína entre os grupos (P=0,07). Crescimento bacteriano foi identificado em 3/54 parafusos. Danos na superfície e presença de sujidade foram visualizados em todos os parafusos submetidos a MEV. Formação de biofilmes extensos foi detectada em oito parafusos, três do Grupo 1 e cinco do Grupo 2. Conclusão Recuperação de bactérias viáveis, acúmulo de biofilme e danos na superfície foram detectados nos parafusos prontos para uso. Os parafusos costumam permanecer nas bandejas cirúrgicas e serem submetidos a múltiplos processamento, sendo expostos a contaminação e danos repetidas vezes. Esses achados apontam para a necessidade de discutir e repensar a forma como esses implantes de uso único são atualmente disponibilizados para cirurgias.

Resumen Objetivo Evaluar la integridad de la superficie y las condiciones microbiológicas de tornillos listos para uso en bandejas ortopédicas después de múltiples procesamientos. Métodos Después del procesamiento completo, fueron seleccionadas aleatoriamente durante cuatro meses las bandejas utilizadas en cirugías de pequeños fragmentos, proporcionadas mediante el sistema de consignación/comodato en un hospital brasileño. Los tornillos más utilizados (números 14, 16 y 18 - Grupo 1) y menos utilizados (números 10 y 38 - Grupo 2), por lo tanto, los más y menos expuestos a agentes biológicos, químicos y físicos, fueron quitados aleatoriamente y sometidos a inspección visual (n=126), seguido de cultivo bacteriano (n=6 tornillos/bandeja, 9 bandejas), prueba de proteínas (n=6 tornillos/bandeja, 9 bandejas) y microscopía electrónica de barrido (MEB) (n=2 tornillos/bandeja, 9 bandejas). Los cultivos positivos fueron sometidos a métodos automatizados de identificación bacteriana y susceptibilidad antimicrobiana. Resultados Se detectaron ranuras en el 8,7 % de los tornillos, predominantemente en el Grupo 2 (8/11). Se detectó proteína residual en el 96,3 % y no se encontró diferencia estadísticamente significativa en la cantidad de proteína entre los grupos (P=0,07). En 3/54 tornillos se identificó crecimiento bacteriano. Se visualizaron daños en la superficie y presencia de suciedad en todos los tornillos sometidos a MEB. En ocho tornillos se detectó la formación de biopelículas, tres del Grupo 1 y cinco del Grupo 2. Conclusión Se detectó recuperación de bacterias viables, acumulación de biopelícula y daños en la superficie en los tornillos listos para uso. Los tornillos suelen permanecer en las bandejas quirúrgicas y son sometidos a múltiples procesamientos, donde están expuestos a contaminación y daños repetidas veces. Estos descubrimientos señalan la necesidad de discutir y repensar la forma como estos implantes de uso único se ponen a disposición para cirugía actualmente.

Abstract Objective Assess the surface integrity and microbiological conditions of patient-ready screws in orthopaedic trays that had been multiply reprocessed. Methods After full reprocessing, clinical trays used for small fragment surgery provided through a loaner system to a Brazilian hospital were randomly selected during four months. The most (numbers 14, 16 and 18 - Group 1) and least (numbers 10 and 38 - Group 2) frequently implanted screws, therefore, the ones estimated to be the most and least exposed to biological, chemical and physical agents, were randomly removed and subjected to visual inspection (n=126), followed by bacterial culture (n=6 screws/tray, 9 trays), protein test (n=6 screws/tray, 9 trays) and Scanning Electron Microscopy (SEM) (n=2 screws/tray, 9 trays). Positive cultures were subjected to automated bacterial identification and antimicrobial susceptibility tests. Results Grooves were detected on 8.7% screws, predominantly in Group 2 (8/11). Residual protein was detected on 96,3%, and there was no statistically significant difference in the amount of protein between the groups (P=0.07). Bacterial growth was identified in 3/54 screws. Surface damage and soil were visualized on all screws subjected to SEM. Extensive biofilms were detected on eight screws, three from Group 1 and five from Group 2. Conclusion Recovery of bacteria, biofilm accumulation and surface damage were detected on patient-ready screws. Screws frequently remain in surgical trays for multiple reprocessing; thus they are repeatedly exposed to contamination and damage. These findings point to the need to discuss and review the way these single-use implants are currently made available for surgeries.

Lock terapia na prevenção e tratamento da infecção da corrente sanguínea associada ao cateter vascular: revisão integrativa / Terapia de bloqueo en la prevención y tratamiento de infecciones del torrente sanguíneo asociadas al catéter vascular: revisión integradora / Lock therapy in prevention and treatment of catheter-associated bloodstream infection: integrative review

Resumo Objetivo Sintetizar o conhecimento sobre o uso da lock terapia na prevenção e no tratamento da infecção da corrente sanguínea associada ao dispositivo de acesso vascular central de longa permanência em pacientes adultos e idosos hospitalizados. Métodos Revisão integrativa com busca nas bases de dados CINAHL, Cochrane Central, Embase, LILACS, PubMed, Scopus e Web of Science, no período de 1º janeiro de 2010 a 28 de setembro de 2021 sem restrições de idioma. Os dados foram analisados de forma descritiva. Resultados Foram identificados 16 estudos sendo seis (37,5%) sobre o uso da lock terapia como prevenção de infecção associada ao dispositivo de acesso vascular central e dez (62,5%) sobre tratamento. Os artigos sobre prevenção relataram o uso de soluções não antibióticas. Nove dos dez estudos que abordaram a lock terapia como tratamento, utilizaram soluções antibióticas. Dois estudos avaliaram a eficácia da lock terapia em curta duração (de três a quatro dias), sete em maior duração (entre 10 e 14 dias) e um não especificou a duração. Cada estudo descreveu uma técnica de intervenção e o tempo de permanência da solução intraluminal. Em relação ao risco de viés, foram avaliados como baixo risco: cinco ensaios clínicos randomizados, dois ensaios clínicos sem randomização e oito estudos observacionais. Apenas um estudo observacional foi classificado como risco moderado. Conclusão Na prevenção, identificou-se o uso de soluções não antibióticas como o etanol. Para o tratamento, foi utilizada a daptomicina endovenosa. Enquanto os estudos incluídos nessa revisão sobre prevenção não demonstraram evidência estatística, os dez estudos sobre tratamento demonstraram que a lock terapia é um complemento eficaz ao tratamento sistêmico, apresentando boas taxas de salvamento do cateter.

Resumen Objetivo Sintetizar el conocimiento sobre el uso de la terapia de bloqueo en la prevención y tratamiento de infecciones del torrente sanguíneo asociadas al dispositivo de acceso vascular central de larga permanencia en pacientes adultos y adultos mayores hospitalizados. Métodos Revisión integradora con búsqueda en las bases de datos CINAHL, Cochrane Central, Embase, LILACS, PubMed, Scopus y Web of Science, en el período del 1 de enero de 2010 al 28 de septiembre de 2021 sin restricción de idioma. Los datos fueron analizados de forma descriptiva. Resultados Se identificaron 16 estudios, de los cuales seis (37,5 %) trataban sobre el uso de la terapia de bloqueo como prevención de infecciones asociadas al dispositivo de acceso vascular central y diez (62,5 %) sobre tratamiento. En los artículos sobre prevención se relató el uso de soluciones no antibióticas. En nueve de los diez estudios que abordaban la terapia de bloqueo como tratamiento, se utilizaron soluciones antibióticas. En dos estudios se evaluó la eficacia de la terapia de bloqueo de corta duración (de tres a cuatro días), siete de mayor duración (entre 10 y 14 días) y uno sin especificar la duración. En cada estudio se describió una técnica de intervención y el tiempo de permanencia de la solución intraluminal. Con relación al riesgo de sesgo, fueron evaluados con riesgo bajo: cinco ensayos clínicos aleatorizados, dos ensayos clínicos no aleatorizados y ocho estudios observacionales. Solo un estudio observacional fue clasificado con riesgo moderado. Conclusión Para la prevención, se identificó el uso de soluciones no antibióticas como el etanol. Para el tratamiento, se utilizó la daptomicina intravenosa. Aunque los estudios incluidos en esta revisión sobre prevención no hayan demostrado evidencia estadística, los diez estudios sobre tratamiento demostraron que la terapia de bloqueo es un complemento eficaz para el tratamiento sistémico y presentó buenos índices de salvamento del catéter.

Abstract Objective To synthesize knowledge on the use of lock therapy for prevention and treatment of long-term central vascular access devices-associated bloodstream infection in hospitalized adult and elderly patients. Methods Integrative review conducted in CINAHL, Cochrane Central, Embase, LILACS, PubMed, Scopus, and Web of Science databases, from January 1st, 2010 to September 28th, 2021, without language restrictions. Data were analyzed descriptively. Results Sixteen studies were identified, six (37.5%) on the use of lock therapy for prevention of bloodstream infection associated with central vascular access devices, and ten (62.5%) on treatment. The articles on prevention reported the use of non-antibiotic solutions. Nine of the ten studies that addressed lock therapy as treatment used antibiotic solutions. Two studies assessed the effectiveness of lock therapy in a short duration (three to four days), seven in a longer duration (between 10 and 14 days), and one did not specify the length of time. Each study described an intervention technique and the length of stay of the intraluminal solution. Regarding the risk of bias, five randomized clinical trials, two non-randomized clinical trials, and eight observational studies were rated as low risk. Only one observational study was classified as moderate risk. Conclusion The use of non-antibiotic solutions such as ethanol was identified for prevention of bloodstream infection. For treatment, intravenous daptomycin was used. While the studies included in this review on prevention did not show statistical evidence, the ten studies on treatment demonstrated that lock therapy is an effective complement to systemic treatment, showing good catheter salvage rates.

Ántrax gigante

Introducción: Se denomina ántrax a la infección de varios folículos pilosos contiguos y es provocada por gérmenes patógenos muy invasivos. Es causado, generalmente, por el Staphylococcus aureus y puede tener repercusión sistémica. Los factores de riesgo para desarrollar esta lesión son: diabetes, obesidad, falta de higiene, inmunosupresión, hiperhidrosis, dermatitis preexistentes. Objetivo: Presentar un paciente con diagnóstico de ántrax gigante. Caso clínico: Paciente femenina de 66 años de edad, con antecedentes de diabetes mellitus tipo 2 en tratamiento, que asistió al servicio de Cirugía General por presentar una picadura de insecto en la región inferior de la espalda, la cual fue tratada en el área de salud con antimicrobianos y no resolvió. Se ingresó con el diagnóstico de ántrax gigante y con la administración de anestesia general endovenosa se realizó necrectomía. El postoperatorio transcurrió sin complicaciones y egresó a los siete días. Conclusiones: La rápida atención médica fundamentada en la administración de antimicrobianos de amplio espectro de forma parenteral, las curas locales y el seguimiento ininterrumpido en consulta externa de la paciente con ántrax gigante, asegura la eficacia del tratamiento quirúrgico con total recuperación, sin tener que aplicar injertos.

Introduction: Anthrax is the name given to the infection of several contiguous hair follicles and is caused by highly invasive pathogenic germs. It is generally caused by Staphylococcus aureus and can have systemic repercussions. The risk factors for developing this lesion are: diabetes, obesity, lack of hygiene, immunosuppression, hyperhidrosis, pre-existing dermatitis. Objective: To make the clinical presentation of a patient diagnosed with giant anthrax. Case report: This is a 66-year-old woman, with a history of type 2 diabetes mellitus under treatment, who attended the General Surgery service for presenting an insect bite in the lower region of the back, which was treated in the health area with antimicrobials and did not resolve. She was admitted with a diagnosis of giant anthrax and with the administration of general intravenous anesthesia, a necrectomy was performed. The postoperative period was uncomplicated and she was discharged after seven days. Conclusions: The immediate medical care based on the parenteral administration of broad-spectrum antimicrobials, local cures and uninterrupted follow-up in the outpatient clinic of the patient with giant anthrax, ensures the effectiveness of the surgical treatment with full recovery, without having to apply grafts.

Efectividad de antimicrobianos como coadyuvantes del raspado y alisado radicular en el tratamiento de la periodontitis del adulto

Fundamento: existen escasos estudios que evalúen la aplicación subgingival de antimicrobianos en el tratamiento de la periodontitis del adulto. Objetivo: evaluar la efectividad de antimicrobianos como coadyuvantes del raspado y alisado radicular en el tratamiento de la periodontitis leve y moderada del adulto. Métodos: estudio cuasiexperimental de intervención terapéutica, realizado en la Clínica Estomatológica de Santiago de Cuba, entre noviembre 2018 y septiembre 2021, sobre 144 pacientes con diagnóstico de periodontitis crónica leve y moderada. Mediante el método probabilístico aleatorio simple, se conformaron tres grupos con 48 integrantes, de forma voluntaria. El grupo control tratado con el raspado y alisado radicular y dos grupos de estudio en que, además, se aplicó una concentración subgingival de tetraciclina y azitromicina, respectivamente. Los pacientes fueron examinados y evaluados a los siete días, al mes y tres meses. Se empleó el análisis de varianza ANOVA para evaluar la igualdad de medias y la prueba ji-cuadrado para la efectividad de curación con un 95 % de confiabilidad. Resultados: hubo reducción de profundidad de sondaje y mayor ganancia de inserción clínica en los tres grupos, pero a favor de los grupos de estudio. Todas las terapias fueron efectivas, pero obtuvo mayor curación el grupo dos (RAR + Tetraciclina) con 97,9 %. Conclusiones: las aplicaciones subgingivales de tetraciclina y azitromicina resultaron efectivas como coadyuvantes del raspado y alisado radicular en el tratamiento de la periodontitis leve y moderada del adulto; con la tetraciclina se logró mayor mejoramiento de parámetros clínicos, disminución de profundidad de sondaje, ganancia de inserción clínica y menor tiempo de curación.

Background: there are few studies that evaluate the subgingival application of antimicrobials in adult periodontitis. Objective: to evaluate the effectiveness of antimicrobials as contributing for scaling and root planing in the treatment of mild and moderate periodontitis in adults. Methods: quasi-experimental study of therapeutic intervention, carried out at the Santiago de Cuba Stomatological Clinic, between November 2018 and September 2021, on 144 patients diagnosed with mild and moderate chronic periodontitis. Using the simple random probabilistic method, three groups with 48 members were formed voluntarily. The control group treated with scaling and root planing and two study groups in which, in addition, a subgingival concentration of tetracycline and azithromycin, respectively, was applied. The patients were examined and evaluated at seven days, one month and three months. ANOVA analysis of variance was used to evaluate the equality of means and the chi-square test for the effectiveness of healing with 95% reliability. Results: there was a reduction in probing depth and greater gain in clinical attachment in the three groups, but in favor of the study groups. All therapies were effective, but group two (RAR + Tetracycline) obtained a greater cure with 97.9%. Conclusions: subgingival applications of tetracycline and azithromycin were effective as adjuvants for scaling and root planing in mild and moderate periodontitis in adults; Tetracycline achieved greater improvement in clinical parameters, decreased probing depth, gain in clinical attachment, and shorter healing time.

Perfil microbiológico em pacientes hospitalizados por queimaduras / Microbiological profile in patients hospitalized for burns

Introdução: As lesões por queimaduras são um problema de saúde global que atinge todas as faixas etárias, não só pela frequência com que ocorrem, mas também pela gravidade. Podem ser incapacitantes, ter alta mortalidade e, ao mesmo tempo, gerar um impacto econômico desfavorável para o país. O objetivo é descrever o perfil microbiológico de pacientes hospitalizados por queimaduras. Métodos: Estudo descritivo, longitudinal e prospectivo no Hospital Provincial Clínico Cirúrgico Celia Sánchez Manduley, Cuba, de julho de 2017 a junho de 2020. Foram estudadas amostras de cultura, positividade, microrganismos isolados e sensibilidade antimicrobiana. Resultados: O estudo mostrou que as amostras de lesões cutâneas por queimaduras (130) foram predominantes e delas 58,46% foram positivas; Staphylococcus aureus, com 51,73%, foi o germe mais isolado; sensibilidade à amicacina de 55,56% e vancomicina 51,11%; a sobrevida foi alta. Conclusão: Predominou a positividade nas amostras de cultura de pele queimada, principalmente Staphylococcus aureus, e uma alta sensibilidade a poucos antimicrobianos.

Introduction: Injuries caused by burns are a global health problem that affects all age groups, not only because of the frequency in which they occur but according to their severity. They can be disabling and have high mortality, and at the same time, generate an unfavorable economic impact on the country. The objective is to describe the microbiological profile of burned hospitalized patients. Methods: A descriptive, longitudinal, and prospective study was carried out at the Provincial Clinical Surgical Celia Sánchez Manduley Hospital from July 2017 to June 2020. Microbiology culture, positivity, isolated microorganisms, and antimicrobial sensitivity were studied. Results: The study showed that the culture microbiology of skin lesions due to burns (130 samples) were predominant, and of them, 58.46% were positive, Staphylococcus aureus with 51.73% was the most isolated germ; sensitivity to amikacin of 55.56% and vancomycin 51.11%; survival was high. Conclusions: The positivity in the culture microbiology of burned skin, mainly Staphylococcus aureus, and high sensitivity to few antimicrobials predominated.

Dispensación de antibióticos en un instituto de seguridad social universitario. Corrientes, Argentina. 2020

Objetivo Caracterizar la dispensa de antibióticos a pacientes ambulatorios en un instituto de seguridad social universitario durante el año 2020. Método Se realizó un estudio observacional, descriptivo-correlacional de utilización de medicamentos. Para cuantificar la dispensa, se utilizó la dosis diaria definida (DDD) por 1 000 habitantes por día (DHD) y la unidad de dosis, recomendadas por la Organización Mundial de la Salud (OMS), y el valor intrínseco terapéutico potencial como indicador cualitativo, según Laporte y Tognoni. Resultados Se incluyeron 4 748 dispensaciones ambulatorias. Edad promedio: 42 años; rango: 0-94 años, con predominio del sexo femenino (55%). La mayoría pertenecían al grupo de las penicilinas (51,3%) con predominio de amoxicilina en asociaciones a dosis fija o como monofármaco (48,3%), seguida por los macrólidos (21,0%) y las fluoroquinolonas (17,0%). Se pudo apreciar un consumo potencial de 7,7 DHD, lo cual implica que, en promedio, 7 de cada 1 000 afiliados de la institución estuvo expuesto a estos agentes diariamente, con predominio de amoxicilina asociada a ácido clavulánico (2,2 DHD). Conclusión La población general de universitarios estuvo expuesta a una prescripción alta de amoxicilina en asociaciones a dosis fijas, algunas de valor inaceptable o relativa, así como también a los nuevos macrólidos y fluoroquinolonas de segunda y tercera generación. Esto requiere especial atención, porque el consumo indiscriminado a nivel ambulatorio de antibióticos de amplio espectro podría convertirse en un factor de riesgo para el desarrollo de resistencia bacteriana; implica, además, un riesgo en la aparición de eventos adversos serios y un incremento en el gasto sanitario.

Objective To characterize the dispensing of antibiotics to outpatients of a university social security institute during the year 2020. Methods An observational, descriptive-correlational study of drug use was carried out. To quantify the dispensation, the defined daily dose (DDD) per 1 000 inhabitants per day (DHD) and the dose unit, recommended by the World Health Organization (WHO), were used. The classification of potential therapeutic intrinsic value, by Laporte and Tognoni, was used as a qualitative indicator. Results A total of 4 748 outpatient dispensations of antibiotics were included, 55% for the female sex. Average age: 42 years; range: 0-94 years. The majority belonged to the penicillin group (51.3%) with a predominance of amoxicillin (48.3%) in fixed-dose associations or mono-drug, followed by macrolides (21.0%) and fluoroquinolones (17.0%). A potential consumption of 7.7 DHD was observed, which implies that, on average, 7 out of every 1 000 members of the institution were exposed to these agents daily with a predominance of amoxicillin associated with clavulanic acid (2.2 DHD). Conclusion The general population of university students was exposed to high fixed-dose associations prescription of amoxicillin, some of relative or unacceptable potential therapeutic intrinsic value, as well as to the new macrolides and second or third generation of fluoroquinolones. This requires special attention because the indiscriminate outpatient use of broad-spectrum antibiotics could become a risk factor for the development of bacterial resistance. It also implies a higher risk of serious adverse events and an increase in healthcare costs.

Use of linezolid in a high complexity hospital of Bogotá city

SUMMARY Introduction: Studying the prescription of last generation antibiotics helps to identify the causes and consequences of the inadequate use of antibiotics. These include the appearance of antibacterial resistance, a situation declared by the WHO as a global public health problem. Aim: To describe the prescription of linezolid in a high complexity hospital in Bogotá, Colombia, considering the follow-up of the recommendations for the use of the drug included in clinical practice guidelines (CPG) and its indications. Methods: A descriptive observational study of longitudinal section was performed with retrospective collection of the information of all patients who were prescribed linezolid, at a minimum dose of 600 mg every 12 h during their hospitalization in the period from January 1st, 2017, to December 31st, 2018. The characteristics of linezolid prescription were described. Results: 133 prescriptions were reviewed. The most frequently diagnosed were sepsis of different origin (pulmonary abdominal, urinary) with 22.6 % (30/133), followed by skin and soft tissue infection 16.5 % (22/133), the pneumonia with 12.8 % (17/133) and urinary tract infections with 9.8 % (13/133). Two days treatment was the most frequent (range 1-30 days). In 33 % (44/133) of the patients, linezolid was used empirically (without using a previous antibiotic), while in 40.6 % (54/133) it was used as a second option (a previous antibiotic scheme). It was used as a third option in 20.3 % (27/133). Finally, in 6 % (8/133) of the patients, linezolid was prescribed after three previous antibiotics. It was necessary to use another antibiotic in near fifty percent of patients because linezolid did not work. Conclusions: The present study shows that there is little adherence to the institutional CPGs in relation to the treatment time, the microorganism identification, and the use as first option. The absence of a full-time infectious disease specialist, the high workload and the continuous rotation of prescribing staff may be the cause of these results. Some cases of inappropriate use may be related to the clinical condition of the patient which requires empirical treatments.

Introducción: el estudio de la prescripción de antibióticos de última generación ayuda a identificar las causas y consecuencias del uso inadecuado de antibióticos. Estas incluyen la aparición de resistencia a los antibacterianos, situación declarada por la OMS como un problema de salud pública mundial. Objetivos: describir la prescripción de linezolid en un hospital de alta complejidad de Bogotá, Colombia, teniendo en cuenta el seguimiento de las recomendaciones de uso del fármaco incluidas en las guías de práctica clínica (GPC) y sus indicaciones. Métodos: se realizó un estudio observacional descriptivo de corte longitudinal con recolección retrospectiva de la información de todos los pacientes a los que se les prescribió linezolid, a una dosis mínima de 600 mg cada 12 h durante el período del 1 de enero de 2017 al 31 de diciembre de 2018. Se describieron las características de la prescripción de line-zolid. Resultados: se revisaron 133 prescripciones. Los diagnósticos más frecuentes fueron la sepsis de diferente origen (pulmonar abdominal, urinaria) con el 22,6 % (30/133), seguida de la infección de piel y tejidos blandos con el 16,5 % (22/133), la neumonía con el 12,8 % (17/133) y las infecciones del tracto urinario con un 9,8 % (13/133). El tratamiento de dos días fue el más frecuente (rango 1-30 días). En el 33 % (44/133) de los pacientes se utilizó linezolid de forma empírica (sin utilizar antibiótico previo), mientras que en el 40,6 % (54/133) se utilizó como segunda opción (esquema antibiótico previo). Se utilizó como tercera opción en el 20,3 % (27/133). Finalmente, en el 6 % (8/133) de los pacientes se prescribió linezolid después de tres antibióticos previos. Fue necesario utilizar otro antibiótico en cerca del cincuenta por ciento de los pacientes porque linezolid no funcionó. Conclusiones: existe poca adherencia a las GPC institucionales en lo relacionado con el tiempo de tratamiento, la identificación del microorganismo, y la utilización como primera opción. La falta de un infectólogo de tiempo completo, la alta carga laboral y la continua rotación de personal prescriptor pueden ser las causas de estos resultados. Algunos casos de uso no adecuado pueden estar relacionados con la condición clínica del paciente que obliga a realizar tratamientos empíricos.

Introdução: o estudo da prescrição de antibióticos de última geração auxilia na identificação das causas e consequências do uso inadequado de antibióticos. Entre eles está o surgimento de resistência aos antibacterianos, situação declarada pela OMS como um problema de saúde pública global. Objetivos: descrever a prescrição de linezolida em hospital de alta complexidade de Bogotá, na Colômbia, levando em consideração o acompanhamento das recomendações de uso de medicamentos constantes das diretrizes de prática clínica (CPG) e suas indicações. Métodos: foi realizado um estudo observacional transversal e descritivo com coleta retrospectiva de informações de todos os pacientes que receberam prescrição de linezolida, na dose mínima de 600 mg a cada 12 h durante o período de 1 de janeiro de 2017 a 31 de dezembro de 2018. As características de prescrição da linezolida foram descritas. Resultados: 133 prescrições foram revisadas. Os diagnósticos mais frequentes foram sepse de diferentes origens (pulmonar, abdominal, urinária) com 22,6 % (30/133), seguida de infecção de pele e partes moles com 16,5 % (22/133), pneumonia com 12,8 % (17/133) e infecções do trato urinário com 9,8 % (13/133). O tratamento de dois dias foi o mais frequente (variação de 1-30 dias). Em 33 % (44/133) dos pacientes, a linezolida foi usada empiricamente (sem o uso de antibiótico prévio), enquanto em 40,6 % (54/133) foi usada como segunda opção (esquema antibiótico prévio). Foi utilizada como terceira opção em 20,3 % (27/133). Finalmente, em 6 % (8/133) dos pacientes, linezolida foi prescrito após três antibióticos anteriores. Outro antibiótico teve de ser usado em cerca de 50 por cento dos pacientes porque a linezolida não funcionou. Conclusões: há pouca adesão ao CPG institucional em relação ao tempo de tratamento, a identificação do microrganismo e a utilização como primeira opção. A falta de um infectologista em tempo integral, a alta carga de trabalho e a rotatividade contínua da equipe de prescrição podem ser as causas desses resultados. Alguns casos de uso inadequado podem estar relacionados ao quadro clínico do paciente que necessita de tratamentos empíricos.

Five cases of corneal suture-associated infectious endophthalmitis / 中华眼底病杂志

Objective:To observe the clinical features and prognosis of eyes with corneal suture-related infective endophthalmitis.Methods:A retrospective interventional case series. From January 2020 to December 2021, 5 patients (5 eyes) with corneal suture-related infectious endophthalmitis diagnosed by ophthalmic examination at Department of Ophthalmology of the Eye-ENT Hospital of Fudan University were included in the study. Among them, there were 3 males and 2 females; all had unilateral disease; the mean age was 30.80±21.98 years. Sutures of 4 cases were secondary to lens related surgery and of 1 case was secondary to penetrating keratoplasty. Average retention time of corneal suture was 20.00±7.41 months. Of the 5 eyes, corneal sutures were removed in 1 eye due to redness and eye pain in another hospital; 3 eyes were loosened of the sutures in the remaining 4 eyes. The patients were given standard treatment for infectious endophthalmitis, including systemic and local anti-infective therapy; corneal suture removal, intraocular injection, and vitrectomy (PPV). In PPV, it was decided whether to give silicone oil filling according to the situation. The follow-up time after treatment was 11.00±7.38 months. The best corrected visual acuity (BCVA), B-mode ultrasound and microbial culture results of the affected eye before and after surgery were observed and analyzed.Results:Infiltrates, ulcers, or abscesses surrounding the suture may be seen on the cornea of the affected eye. B-mode ultrasonography showed vitreous opacity, preretinal cords, and spherical wall edema in the entire segment of the affected eye. The results of vitreous humor culture were positive in 3 eyes, which were Streptococcus viridis, Staphylococcus hominis subspecies, Staphylococcus epidermidis. After treatment, all the intraocular infections in the affected eyes were successfully controlled, and there were no cases of enucleation of ocular contents or enucleation. Before treatment, the BCVA of the affected eye was from no light perception to counting fingers; after treatment, 2 eyes had BCVA> 0.3.Conclusions:Infiltration, ulcers or abscesses around the sutures can be seen in the cornea of corneal suture-related infective endophthalmitis patients, which are related to the long-term retention of the sutures in the eye. Most of the affected eyes have loose sutures when they go to the doctor; timely treatment can effectively control the infection, and some eyes have good visual prognosis.

Screening strategies for quorum sensing inhibitors in combating bacterial infections / 药物分析学报

Interference with quorum sensing(QS)represents an antivirulence strategy with a significant promise for the treatment of bacterial infections and a new approach to restoring antibiotic tolerance.Over the past two decades,a novel series of studies have reported that quorum quenching approaches and the discovery of quorum sensing inhibitors(QSIs)have a strong impact on the discovery of anti-infective drugs against various types of bacteria.The discovery of QSI was demonstrated to be an appropriate strategy to expand the anti-infective therapeutic approaches to complement classical antibiotics and antimicrobial agents.For the discovery of QSIs,diverse approaches exist and develop in-step with the scale of screening as well as specific QS systems.This review highlights the latest findings in strategies and methodologies for QSI screening,involving activity-based screening with bioassays,chemical methods to seek bacterial QS pathways for QSI discovery,virtual screening for QSI screening,and other potential tools for interpreting QS signaling,which are innovative routes for future efforts to discover additional QSIs to combat bacterial infections.

Reporting on antibiotic use patterns using the WHO Access, Watch, Reserve classification in the Caribbean / Presentación de informes sobre los patrones de consumo de antibióticos mediante la clasificación de acceso, control y reserva (AWaRe) de la OMS en el Caribe / Relatório sobre padrões de uso de antibióticos no Caribe usando a classificação Acesso, Vigilância e Reserva da OMS

ABSTRACT Objective. To assess antibiotic use in three hospitals in three Caribbean countries based on data from 2013 and 2018 using the World Health Organization Essential Medicines List "Access, Watch, Reserve" (AWaRe) classification. Methods. A retrospective observational study, which analyzed the World Health Organization Point Prevalence Survey data from three hospitals in three Caribbean countries, to examine proportional AWaRe group antibiotic use for the top ten inpatient indications. The Access-to-Watch ratio was calculated, and the top three antibiotics prescribed in each hospital were determined. Results. The final data set included 376 prescriptions for the top ten indications in 766 inpatients. The hospital antibiotic use point prevalence for Hospital 1 was 35.6%, Hospital 2 was 48.6%, and Hospital 3 was 47.1%. The Access-to-Watch ratio for the top ten indications was 2.45, 1.36, and 1.72 in the three hospitals. Access group prevalence was 71.0% in Hospital 1, 57.6% in Hospital 2, and 63.2% in Hospital 3. There were no Reserve antibiotics prescribed in any of the institutions. The most common indication for Watch prescription was skin and soft tissue infections in Hospital 1 and pneumonia in Hospital 2 and 3. Conclusions. This study draws urgent attention to evidence of a high proportion of Watch antibiotic prescribing and lack of Reserve group antibiotics in three Caribbean countries. This research provides data that may inform national formulary and antimicrobial stewardship policy-making across the settings analyzed and the wider region.

RESUMEN Objetivo. Evaluar el consumo de antibióticos en tres hospitales de tres países del Caribe según datos del período 2013-2018 mediante la clasificación de acceso, control y reserva (AWaRe, por su sigla en inglés) de la lista de medicamentos esenciales de la Organización Mundial de la Salud. Métodos. Se realizó un estudio observacional retrospectivo, que analizó los datos de la encuesta de prevalencia puntual de la Organización Mundial de la Salud de tres hospitales en tres países del Caribe, a fin de evaluar el consumo proporcional de antibióticos por grupo de la clasificación AWaRe para las diez principales indicaciones en pacientes hospitalizados. Se calculó la relación entre los grupos de acceso y de control y se determinó cuáles eran los tres principales antibióticos prescritos en cada hospital. Resultados. El conjunto final de datos incluyó 376 recetas para las diez indicaciones principales en 766 pacientes hospitalizados. La prevalencia puntual del consumo de antibióticos en el hospital 1 fue 35,6%, en el hospital 2 fue 48,6% y en el hospital 3 fue 47,1%. La relación entre los grupos de acceso y de control correspondientes a las diez principales indicaciones fue 2,45, 1,36 y 1,72 en los tres hospitales. La prevalencia del grupo de acceso fue 71,0% en el hospital 1, 57,6% en el hospital 2 y 63,2% en el hospital 3. No se prescribieron antibióticos del grupo de reserva en ninguna de las instituciones. La indicación más común para la prescripción de antibióticos en el grupo de control fue infecciones en la piel y los tejidos blandos en el hospital 1 y neumonía en los hospitales 2 y 3. Conclusiones. Este estudio busca llamar la atención urgentemente sobre la evidencia de una alta proporción de prescripción de antibióticos del grupo de control y la carencia de antibióticos del grupo de reserva en tres países del Caribe. Esta investigación proporciona datos que pueden fundamentar el formulario nacional y la elaboración de políticas para la optimización del uso de antimicrobianos en los entornos analizados y en la región en general.

RESUMO Objetivo. Avaliar o uso de antibióticos em três hospitais de três países do Caribe, com base em dados de 2013 e 2018, usando a classificação "Acesso, Vigilância e Reserva" (AWaRe) da Lista de Medicamentos Essenciais da Organização Mundial da Saúde. Métodos. Estudo observacional retrospectivo com análise de dados do Estudo de Prevalência Pontual da Organização Mundial da Saúde, coletados em três hospitais de três países do Caribe para examinar o uso proporcional de antibióticos dos grupos AWaRe para as dez indicações mais frequentes em pacientes internados. A razão entre os grupos Acesso e Vigilância foi calculada e determinou-se quais eram os três antibióticos mais prescritos em cada hospital. Resultados. O conjunto final de dados incluiu 376 medicamentos prescritos para as dez indicações mais frequentes em 766 pacientes internados. A prevalência pontual de uso de antibióticos foi de 35,6% no hospital 1, 48,6% no hospital 2 e 47,1% no hospital 3. A razão entre Acesso e Vigilância nas dez indicações mais frequentes foi 2,45, 1,36, e 1,72 nos três hospitais. A prevalência do grupo Acesso foi de 71,0% no hospital 1, 57,6% no hospital 2 e 63,2% no hospital 3. Nenhum antibiótico da categoria Reserva foi prescrito em nenhuma das instituições. A indicação mais comum dos medicamentos prescritos no grupo Vigilância foram infecções de pele e tecidos moles no hospital 1 e pneumonia nos hospitais 2 e 3. Conclusões. Este estudo chama urgentemente a atenção para evidências de uma grande proporção de antibióticos prescritos no grupo Vigilância e a carência de antibióticos do grupo Reserva em três países do Caribe. Esta pesquisa fornece dados que podem guiar a criação de políticas para o formulário terapêutico nacional e o uso racional de antimicrobianos nos cenários analisados e na região como um todo.

Reacciones adversas a medicamentos utilizados para la COVID-19 en cinco países de América Latina / Adverse reactions to drugs used for COVID-19 in five Latin American countries / Reações adversas a medicamentos utilizados para a COVID-19 em cinco países da América Latina

RESUMEN Objetivo. Caracterizar y describir las notificaciones de sospechas de reacciones adversas de un grupo de medicamentos que se utilizaron en Colombia, Costa Rica, Cuba, Chile, El Salvador, México y Perú para tratar o prevenir la enfermedad por el coronavirus (COVID-19, por su sigla en inglés) entre el 1 de marzo y el 31 de agosto del 2020. Métodos. Se elaboró una lista de los 13 medicamentos utilizados para tratar o prevenir la COVID-19, según fuentes oficiales y no oficiales. Desde las bases de datos de los programas nacionales de farmacovigilancia de los países participantes, se recopilaron las notificaciones de sospechas de reacciones adversas a estos medicamentos recibidas en el período comprendido entre el 1 de marzo y 31 de agosto de año 2020. Resultados. Se recibieron 3 490 notificaciones de sospechas de reacciones adversas desde los programas de farmacovigilancia de Perú (n = 3 037), Cuba (n = 270), Colombia (n = 108), Chile (n = 72) y El Salvador (n = 3). Los medicamentos con mayor número de notificaciones de reacciones adversas fueron la azitromicina, la ivermectina y la hidroxicloroquina. La diarrea fue el evento más frecuente (15,0%). Del total de las sospechas de reacciones adversas, 11,9% fueron notificadas como graves. La más frecuente fue la prolongación del intervalo QT posterior al uso de hidroxicloroquina. De estas sospechas de reacciones adversas graves, 54,5% ocurrieron en personas mayores de 65 años. Conclusión. Si bien no es posible establecer una relación causal a partir de la evaluación de informes espontáneos, el presente estudio confirma la presencia de reacciones adversas, algunas graves, con medicamentos que se utilizaron para tratar o prevenir la COVID-19.

ABSTRACT Objective. Characterize and describe reports of suspected adverse reactions to a group of drugs used in Colombia, Costa Rica, Cuba, Chile, El Salvador, Mexico, and Peru to treat or prevent coronavirus disease (COVID-19) between 1 March and 31 August 2020. Methods. A list of the 13 drugs used to treat or prevent COVID-19 was prepared, based on official and unofficial sources. Drawing on the databases of the national pharmacovigilance programs of the participating countries, reports of suspected adverse reactions to these drugs were collected for the period from 1 March and 31 August 2020. Results. A total of 3 490 reports of suspected adverse reactions were received from the pharmacovigilance programs of Peru (n = 3 037), Cuba (n = 270), Colombia (n = 108), Chile (n = 72), and El Salvador (n = 3). The drugs with the highest number of reported adverse reactions were azithromycin, ivermectin, and hydroxychloroquine. Diarrhea was the most frequent event (15.0%). Of the total suspected adverse reactions, 11.9% were reported as serious. The most frequent was QT prolongation following use of hydroxychloroquine. Of these suspected serious adverse reactions, 54.5% occurred in people over 65 years of age. Conclusions. While it is not possible to establish a causal relationship from the evaluation of spontaneous reports, the present study confirms the presence of adverse reactions—some of them serious—involving drugs used to treat or prevent COVID-19.

RESUMO Objetivo. Caracterizar e descrever as notificações de suspeitas de reações adversas a um grupo de medicamentos utilizados na Colômbia, Costa Rica, Cuba, Chile, El Salvador, México e Peru, para tratar ou prevenir a doença do coronavírus (COVID-19), entre 1º de março e 31 de agosto de 2020. Métodos. Foi elaborada uma lista dos 13 medicamentos usados para tratar ou prevenir a COVID-19, segundo fontes oficiais e não oficiais. A partir das bases de dados dos programas nacionais de farmacovigilância dos países participantes, foram coletadas notificações de suspeitas de reações adversas a esses medicamentos, recebidas no período entre 1º de março e 31 de agosto de 2020. Resultados. Foram recebidas 3.490 notificações de suspeitas de reações adversas dos programas de farmacovigilância do Peru (n = 3.037), Cuba (n = 270), Colômbia (n = 108), Chile (n = 72) e El Salvador (n = 3). Os medicamentos com maior número de notificações de reações adversas foram azitromicina, ivermectina e hidroxicloroquina. A diarreia foi o evento mais frequente (15,0%). Do total de suspeitas de reações adversas, 11,9% foram notificadas como graves. A mais frequente foi o prolongamento do intervalo QT após o uso de hidroxicloroquina. Dessas suspeitas de reações adversas graves, 54,5% ocorreram em pessoas com mais de 65 anos. Conclusão. Embora não seja possível estabelecer uma relação causal com base na avaliação de relatos espontâneos, o presente estudo confirma a presença de reações adversas - algumas graves - a medicamentos que foram usados para tratar ou prevenir a COVID-19.

Perfil de sensibilidade a antibióticos de um isolado de Providencia rettgeri proveniente de equino / Antibiotic sensitivity profile in isolate of Providencia rettgeri from a horse

Introdução: a meningite bacteriana em equinos é uma enfermidade frequente em animais jovens. Streptococcus spp., Staphylococcus aureus e Escherichia coli são as bactérias mais comumente isoladas nesses casos. Apesar da bactéria Providencia rettgeri já ter sido isolada em casos de meningite humana e de crocodilo, não há relatos de seu isolamento em equinos. Objetivo: relatar o isolamento e a identificação da bactéria P. rettgeri de um potro com sintomas neurológicos e avaliar o perfil de sensibilidade a antibióticos deste isolado. Metodologia: o isolamento foi realizado a partir do líquido cefalorraquidiano do potro, por meio de cultivo em meio ágar chocolate. Após isolamento, as colônias formadas foram identificadas por equipamento Biotyper, baseado em espectrometria de massa. O perfil de sensibilidade foi definido por teste de difusão em discos, seguindo metodologia relatada pelo CLSI M2-A8 em 2003, sendo a bactéria classificada como resistente, padrão indeterminado ou sensível aos antibióticos, de acordo com o descrito pelo EUCAST em 2021. Resultados: este é o primeiro relato do isolamento de P. rettgeri como agente etiológico de meningite em potro. Dos 15 antibióticos testados, a bactéria foi resistente a 9, sensível a 5 e com padrão indeterminado a 1 antibiótico. Conclusão: nossos resultados indicam que P. rettgeri deve ser considerada entre possíveis agentes etiológicos de quadros neurológicos em equinos e que testes de sensibilidade a antibiótico são fundamentais, uma vez que essa bactéria já apresenta resistência a diversos antibióticos disponíveis comercialmente.

Introduction: Bacterial meningitis in horses is a frequent disease in young animals. Streptococcus spp., Staphylococcus aureus and Escherichia coli are the most commonly isolated bacteria in these cases. Although Providencia rettgeri bacterium has already been isolated in cases of human and crocodile meningitis, there are no reports of its isolation in cases of meningitis in horses. Objective: to report isolation and identification of the P. rettgeri bacteria from a foal with neurological symptoms and to assess antibiotic sensitivity profile in isolate of it. Methods: isolation was performed from the foal's cerebrospinal fluid, through cultivation in chocolate agar medium. After isolation, formed colonies were identified by Biotyper equipment, based on mass spectrometry. Sensitivity profile was verified by disk diffusion test, according to methodology that was reported by CLSI M2-A8 in 2003, which classified bacteria as resistant, indeterminate pattern or sensitive to antibiotics, as described by EUCAST in 2021. Results: this is the first report on isolation of P. rettgeri as an etiologic agent of meningitis in foals. Among 15 antibiotics that were tested, results showed bacteria resistence to 9 antibiotics, bacteria sensitivity to 5, but undetermined pattern to 1 antibiotic. Conclusion: results indicate that P. rettgeri shall be considered among potential etiologic agents of neurological conditions in horses and that antibiotic sensitivity tests are essential, since this type of bacterium is already resistant to several commercially available antibiotics.

Physicochemical properties and antimicrobial activity of calcium hydroxide pastes in association with other compounds

Aim: This study aimed to evaluate the pH, Ca2+ release, solubility, and antimicrobial activity of calcium hydroxide (Ca(OH)2) pastes in association with different substances. Methods: Sixty acrylic teeth (n=10) were filled with pastes that associated Ca(OH)2 with the following substances: benzalkonium chloride 5% (G1) and 50% (G2) both in propylene glycol, arnica glycolic extract (G3), green tea glycolic extract (G4), Calen/PMCC™ (G5), and Calen™ (G6). In the group G1 to G4 were used 1g of Ca(OH)2 powder with 0,8g of vehicle. pH and Ca2+ release was measured after 7, 15, and 30 days. For solubility, micro-CT was used immediately and at the periods of 7, 15, and 30 days. For the antimicrobial analysis, a biofilm of E. faecalis was induced in vitro on bovine dentin discs. Live/dead viability dye and confocal scanning microscopy were used. Results: The highest pH values occurred on the first 7 days, and the G6, G1, G3, and G5 presented the highest pH values at this period (P <0.05). Ca2+ release was higher in all groups at 7 days, with the highest values observed in G1, G5, and G6. The volume of all pastes showed no significant difference in the intragroup analysis at 7 and 15 days (P <0.05). G1 and G2 showed the highest antimicrobial action (P <0.05). For the biovolume, there was difference between the G6 and the other groups (P >0.05) with G1 presenting the lowest values. Conclusion: Benzalkonium chloride 5% increases the antimicrobial action of the Ca(OH2), without impairs physicochemical properties

Amamentação e utilização de medicamentos: qual a orientação presente nas bulas de anticoncepcionais e anti-infecciosos? / Breastfeeding and drug use: what is the orientation found in drug package inserts of contraceptives and anti-infective agents?

Resumo O objetivo deste artigo é avaliar a concordância entre bulas e fontes bibliográficas baseadas em evidências científicas quanto à presença de contraindicação do uso de anticoncepcionais e anti-infecciosos durante a amamentação. Foram selecionados medicamentos anticoncepcionais e anti-infecciosos, segundo a ATC, com registro na ANVISA e presentes nas fontes bibliográficas: Manual Amamentação e Uso de Medicamentos e Outras Substâncias, Medications and Mother's Milk, LactMed®, Micromedex® e UpToDate®. As informações foram extraídas das seções "Contraindicações" e "Advertências e precauções" das bulas e comparadas com as informações das fontes. Foi avaliada a presença de informação contraindicando o uso do medicamento durante a amamentação. Em cinco (55,5%) dos nove anticoncepcionais foi verificada contraindicação na bula. Entre as fontes bibliográficas, o percentual variou de 0% a 55,5%, dependendo da fonte. Para os anti-infecciosos, o percentual de contraindicação foi de 46,3% na bula, variando de 0% a 12,9% nas fontes. Existe concordância entre as bulas e as fontes bibliográficas com relação aos anticoncepcionais; no caso dos anti-infecciosos, as bulas apresentam contraindicação para o uso durante a amamentação com mais frequência.

Abstract This article aims to evaluate the conformity between drug package inserts (DPIs) and evidence-based bibliographic sources regarding the presence of contraindications to the use of contraceptives and anti-infective agents during breastfeeding. Contraceptive and anti-infectives were selected, according to ATC, with the updated record in the ANVISA and present in the bibliographic sources Breastfeeding and Use of Medicines and Other Substances, Medications and Mother's Milk, LactMed®, Micromedex® and UpToDate®. Information was extracted from the DPI "Contraindications" and "Warnings and precautions" sections and compared with the information in the bibliographic sources. The contraindication of the drug during breastfeeding was evaluated. Contraindications were found in the DPIs of five (55.5%) of the nine contraceptives. The contraindication percentage ranged from 0 to 55.5% among the bibliographic sources, depending on the source. The percentage was 46.3% in the DPIs, ranging from 0 to 12.9% in the bibliographic sources for anti-infectives. There is an agreement between the DPIs and the bibliographic sources regarding contraceptives; regarding anti-infectives, the DPIs are more often contraindicated for use during breastfeeding.