Mobile phones of anesthesiologists as reservoirs of nosocomial bacteria in a quaternary teaching hospital: an observational study

Abstract Background: Mobile phones in hospital settings have been identified as an important source of cross-contamination because of the low frequency with which mobile phones are cleaned by health workers and cyclical contamination of the hands and face. The aim of this study was to investigate whether the mobile phones of the anesthesia team at a teaching hospital are potential reservoirs of nosocomial bacteria. In addition, differences in device sanitization and hand hygiene habits between attending and resident anesthesiologists were correlated with mobile phone colonization. Methods: A prevalence study was conducted over a 6-month period from 2017 to 2018 that involved the collection of samples from the mobile phones of the anesthesiology team and culturing for surveillance. A questionnaire was administered to assess the mobile phone sanitization and hand washing routines of the anesthesia team in specific situations. Results: Bacterial contamination was detected for 86 of the 128 mobile phones examined (67.2%). A greater presence of Micrococcus spp. on devices was correlated with a higher frequency of mobile phone use (p = 0.003) and a lower frequency of sanitization (p = 0.003). The presence of bacteria was increased on the mobile phones of professionals who did not perform handwashing after tracheal intubation (p = 0.003). Conclusion: Hand hygiene and device sanitization habits were more important than the use behavior, as a higher presence of bacteria correlated with poorer hygiene habits. Furthermore, handwashing is the best approach to prevent serious colonization of mobile devices and the possible transmission of pathogens to patients under the care of anesthesiologists.

The impact of introducing a videolaryngoscope in the initial training of laryngoscopy for undergraduate medical students: a simulation randomized trial.

INTRODUCTION: Adequate and continuous airway management by health professionals is fundamental to ensure patient safety and protection. Among several techniques, laryngoscopy for orotracheal intubation is considered a basic skill, so it is taught and learned in medical school and used during the future years of professional practice. However, in some clinical scenarios, physical and anatomical characteristics can make laryngoscopy exceedingly difficult. In the last decade, some new devices have emerged to apply indirect or video-assisted imaging systems, so-called videolaryngoscopes. They have shown great efficiency in difficult intubation cases and have improved teaching and training. Our study introduced a videolaryngoscope, the McGrath... MAC, in the regular laryngoscopy training rotation for 3rd-year undergraduate medical students and evaluated whether there was any associated optimization of the students... METHOD: Students from two different classes and years (2017 and 2018) were randomly divided into two groups and received theoretical and practical training in the techniques of Direct Laryngoscopy (DL) and Videolaryngoscopy (VL). The students in each group applied the manoeuvres and simulated three tracheal intubation attempts on mannequins. They were evaluated for their success rate on the first attempt, the time required to finalize the intubation, and the visualization of the glottic structures according to the classification of Cormack-Lehane (C&L). RESULTS: Two hundred and four students with an average age of 21.ß...ß2 years participated in the study; the groups were similar. There was a significant difference between the VL and DL groups in the 1st attempt success rate (97% and 89.4%, respectively, p.ß=.ß0.0497 ... 95% CI), but such a difference was not seen for the other attempts or regarding the number of oesophageal intubations (3% and 7.7%). The students in the VL group were faster than those in the DL group in all intubation attempts; in parallel, the vast majority of the VL group reported excellent visualization conditions, with 75% of the attempts classified as Cormack-Lehane grade 1. CONCLUSION: The introduction of a videolaryngoscope in medical students... training improved the visualization of anatomical structures and allowed tracheal intubation maneuvers to be performed faster and with a higher success rate on the first attempt. Thus, under the conditions of this prospective study, the videolaryngoscope had a positive impact on training and proved to be a promising tool for teaching laryngoscopy.

Mobile phones of anesthesiologists as reservoirs of nosocomial bacteria in a quaternary teaching hospital: an observational study.

BACKGROUND: Mobile phones in hospital settings have been identified as an important source of cross-contamination because of the low frequency with which mobile phones are cleaned by health workers and cyclical contamination of the hands and face. The aim of this study was to investigate whether the mobile phones of the anesthesia team at a teaching hospital are potential reservoirs of nosocomial bacteria. In addition, differences in device sanitization and hand hygiene habits between attending and resident anesthesiologists were correlated with mobile phone colonization. METHODS: A prevalence study was conducted over a 6-month period from 2017 to 2018 that involved the collection of samples from the mobile phones of the anesthesiology team and culturing for surveillance. A questionnaire was administered to assess the mobile phone sanitization and hand washing routines of the anesthesia team in specific situations. RESULTS: Bacterial contamination was detected for 86 of the 128 mobile phones examined (67.2%). A greater presence of Micrococcus spp. on devices was correlated with a higher frequency of mobile phone use (p=0.003) and a lower frequency of sanitization (p=0.003). The presence of bacteria was increased on the mobile phones of professionals who did not perform handwashing after tracheal intubation (p=0.003). CONCLUSION: Hand hygiene and device sanitization habits were more important than the use behavior, as a higher presence of bacteria correlated with poorer hygiene habits. Furthermore, handwashing is the best approach to prevent serious colonization of mobile devices and the possible transmission of pathogens to patients under the care of anesthesiologists.

The impact of introducing a videolaryngoscope in the initial training of laryngoscopy for undergraduate medical students: a simulation randomized trial

Abstract Introduction: Adequate and continuous airway management by health professionals is fundamental to ensure patient safety and protection. Among several techniques, laryngoscopy for orotracheal intubation is considered a basic skill, so it is taught and learned in medical school and used during the future years of professional practice. However, in some clinical scenarios, physical and anatomical characteristics can make laryngoscopy exceedingly difficult. In the last decade, some new devices have emerged to apply indirect or video-assisted imaging systems, so-called videolaryngoscopes. They have shown great efficiency in difficult intubation cases and have improved teaching and training. Our study introduced a videolaryngoscope, the McGrathTM MAC, in the regular laryngoscopy training rotation for 3rd-year undergraduate medical students and evaluated whether there was any associated optimization of the students' performance. Method: Students from two different classes and years (2017 and 2018) were randomly divided into two groups and received theoretical and practical training in the techniques of Direct Laryngoscopy (DL) and Videolaryngoscopy (VL). The students in each group applied the manoeuvres and simulated three tracheal intubation attempts on mannequins. They were evaluated for their success rate on the first attempt, the time required to finalize the intubation, and the visualization of the glottic structures according to the classification of Cormack-Lehane (C&L). Results: Two hundred and four students with an average age of 21 ± 2 years participated in the study; the groups were similar. There was a significant difference between the VL and DL groups in the 1st attempt success rate (97% and 89.4%, respectively, p = 0.0497 - 95% CI), but such a difference was not seen for the other attempts or regarding the number of oesophageal intubations (3% and 7.7%). The students in the VL group were faster than those in the DL group in all intubation attempts; in parallel, the vast majority of the VL group reported excellent visualization conditions, with 75% of the attempts classified as Cormack-Lehane grade 1. Conclusion: The introduction of a videolaryngoscope in medical students' training improved the visualization of anatomical structures and allowed tracheal intubation maneuvers to be performed faster and with a higher success rate on the first attempt. Thus, under the conditions of this prospective study, the videolaryngoscope had a positive impact on training and proved to be a promising tool for teaching laryngoscopy.

Recommendations for local-regional anesthesia during the COVID-19 pandemic.

Since the beginning of the COVID-19 pandemic, many questions have come up regarding safe anesthesia management of patients with the disease. Regional anesthesia, whether peripheral nerve or neuraxial, is a safe alternative for managing patients with COVID-19, by choosing modalities that mitigate pulmonary function involvement. Adopting regional anesthesia mitigates adverse effects in the post-operative period and provides safety to patients and teams, as long as there is compliance with individual protection and interpersonal transmission care measures. Respecting contra-indications and judicial use of safety techniques and norms are essential. The present manuscript aims to review the evidence available on regional anesthesia for patients with COVID-19 and offer practical recommendations for safe and efficient performance.

Desde o início da pandemia de COVID-19, muitas questões surgiram referentes à segurança do manejo anestésico de pacientes acometidos pela doença. A anestesia regional, seja esta periférica ou neuroaxial, é alternativa segura no manejo do paciente COVID-19, desde que o emprego de modalidades que minimizam o comprometimento da função pulmonar seja escolhido. A adoção desta técnica anestésica minimiza os efeitos adversos no pós-operatório e oferece segurança para o paciente e equipe, desde que sejam respeitados os cuidados com proteção individual e de contágio interpessoal. Respeito às contraindicações e emprego criterioso das técnicas e normas de segurança são fundamentais. Este manuscrito tem por objetivo revisar as evidências disponíveis sobre anestesia regional em pacientes com COVID-19 e oferecer recomendações práticas para sua realização segura e eficiente.

[Recommendations for local-regional anesthesia during the COVID-19 pandemic]. / Recomendações para realização de anestesia loco­regional durante a pandemia de COVID­19.

Since the beginning of the COVID-19 pandemic, many questions have come up regarding safe anesthesia management of patients with the disease. Regional anesthesia, whether peripheral nerve or neuraxial, is a safe alternative for managing patients with COVID-19, by choosing modalities that mitigate pulmonary function involvement. Adopting regional anesthesia mitigates adverse effects in the postoperative period and provides safety to pati ents and teams, as long as there is compliance with individual protection and interpersonal transmission care measures. Respecting contra-indications and judicial use of safety techniques and norms are essential. The present manuscript aims to review the evidence available on regional anesthesia for patients with COVID-19 and offer practical recommendations for safe and efficient performance.

Addiction to work and factors relating to this: a cross-sectional study on doctors in the state of Paraíba

ABSTRACT CONTEXT AND OBJECTIVE: Addiction to work is one of the new behavioral phenomena present in organizations and it is characterized by excess work and compulsion to work. This phenomenon may give rise to different sicknesses and may affect different professionals, including doctors. Thus, the aims of this study were to analyze the factorial validity and internal consistency of the Dutch Work Addiction Scale (DUWAS); to evaluate the prevalence of addiction to work among doctors in the state of Paraíba; and to investigate factors relating to addiction to work among these doctors. DESIGN AND SETTING: This was an exploratory, descriptive cross-sectional study with a quantitative approach conducted in municipalities in the state of Paraíba. METHODS: Data were gathered between June and October 2015, by applying a questionnaire containing sociodemographic questions and the Work Addiction Scale. RESULTS: The results showed that the Work Addiction Scale has internal consistency and factorial validity and that, in the population studied, only one factor was pointed out: addiction to work. Most of the doctors were not addicted to work; among the addicts, the addiction was not excessive; and the addiction had a positive correlation with the number of shifts done and a negative correlation with age. CONCLUSION: Greater attention to this phenomenon is required and further research on this topic is needed in order to elucidate the harm caused by addiction to work in daily medical practice.

Addiction to work and factors relating to this: a cross-sectional study on doctors in the state of Paraíba.

CONTEXT AND OBJECTIVE: Addiction to work is one of the new behavioral phenomena present in organizations and it is characterized by excess work and compulsion to work. This phenomenon may give rise to different sicknesses and may affect different professionals, including doctors. Thus, the aims of this study were to analyze the factorial validity and internal consistency of the Dutch Work Addiction Scale (DUWAS); to evaluate the prevalence of addiction to work among doctors in the state of Paraíba; and to investigate factors relating to addiction to work among these doctors. DESIGN AND SETTING: This was an exploratory, descriptive cross-sectional study with a quantitative approach conducted in municipalities in the state of Paraíba. METHODS: Data were gathered between June and October 2015, by applying a questionnaire containing sociodemographic questions and the Work Addiction Scale. RESULTS: The results showed that the Work Addiction Scale has internal consistency and factorial validity and that, in the population studied, only one factor was pointed out: addiction to work. Most of the doctors were not addicted to work; among the addicts, the addiction was not excessive; and the addiction had a positive correlation with the number of shifts done and a negative correlation with age. CONCLUSION: Greater attention to this phenomenon is required and further research on this topic is needed in order to elucidate the harm caused by addiction to work in daily medical practice.

Work addiction and quality of life: a study with physicians.

OBJECTIVE: To evaluate the quality of life of physicians and investigate to what extent it is affected by work addiction. METHODS: This is an exploratory, descriptive and cross-sectional study, conducted with 1,110 physicians. For data collection, we used a questionnaire with sociodemographic information, the World Health Organization Quality of Life BREF, and the Work Addiction Scale. RESULTS: Most physicians presented high quality of life. Female participants presented lower quality of life in the domains psychologic, environment and general (p<0.05). Quality of life was negatively correlated with the number of shifts (p<0.005). The higher the addiction to work, the lower the quality of life. CONCLUSION: The research allowed understanding the implications of work addiction in the quality of life. Further studies are required to support the development of strategies that improve health conditions and quality of life of medical professionals. OBJETIVO: Avaliar a qualidade de vida de médicos e investigar em que medida a adição ao trabalho a afeta. MÉTODOS: Trata-se de um estudo exploratório, descritivo e transversal, realizado com 1.110 médicos. Para coleta de dados, optou-se por utilizar um questionário contendo informações sociodemográficas, bem como aplicar o instrumento World Health Organization Quality of Life-BREF e a Escala de Adição ao Trabalho. RESULTADOS: Os médicos, em sua maioria, apresentaram alta qualidade de vida. Os participantes do sexo feminino tiveram menor qualidade de vida em relação aos homens nos domínios psicológico, meio ambiente e geral (p<0,05). A qualidade de vida correlacionou-se negativamente com o número de plantões (p<0,005), e quanto maior a adição ao trabalho, menor a qualidade de vida. CONCLUSÃO: A pesquisa permitiu o conhecimento das implicações da adição ao trabalho sobre a qualidade de vida. Novos estudos são necessários para subsidiar a elaboração de estratégias que melhorem a saúde e a qualidade de vida do profissional médico.

Principles of anesthesia for craniotomy in awake patients / Principios de la anestesia para craneotomía en paciente vigil

La realización de una craneotomía con el paciente despierto se está utilizando cada vez más en diversas situaciones, como en neurocirugía funcional sobre la estimulación cerebral para tratar la enfermedad de Parkinson y la cirugía para tratar la epilepsia, así como los procedimientos neuroquirúrgicos destinadas a resección de tumores cerebrales en áreas elocuentes. Los principios anestésicos para realizar la craneotomía despierta tienen el objetivo de realización de una analgesia adecuada,sedación, la estabilidad hemodinámica sistémica y la permeabilidad de la vía aérea con el tipo de procedimiento neuroquirúrgico a realizar. El objetivo de este estudio es revisar los principios que rigen la conducta de la anestesia para la neurocirugía que es necesario para lograr la craneotomía con el paciente despierto.

Craniotomy in awake patients is becoming more widely used in a range of situations, such as functional neurology, brain stimulation for treatment of Parkinson disease, surgery for treating epilepsy, as well as in neurological procedures to resect brain tumors in eloquent area. The main anesthesia regimen for craniotomy in the awake patient is chosen to provide the appropriate analgesia, sedation, systemic hemodynamic stability and airway patency for the type of neurosurgical procedure being carried out. The objective of the present study was to conduct a review of the principles governing anesthesia for neurosurgeries involving craniotomy in awake patients.

Work addiction and quality of life: a study with physicians / Adição ao trabalho e qualidade de vida: um estudo com médicos

ABSTRACT Objective To evaluate the quality of life of physicians and investigate to what extent it is affected by work addiction. Methods This is an exploratory, descriptive and cross-sectional study, conducted with 1,110 physicians. For data collection, we used a questionnaire with sociodemographic information, the World Health Organization Quality of Life BREF, and the Work Addiction Scale. Results Most physicians presented high quality of life. Female participants presented lower quality of life in the domains psychologic, environment and general (p<0.05). Quality of life was negatively correlated with the number of shifts (p<0.005). The higher the addiction to work, the lower the quality of life. Conclusion The research allowed understanding the implications of work addiction in the quality of life. Further studies are required to support the development of strategies that improve health conditions and quality of life of medical professionals.

RESUMO Objetivo Avaliar a qualidade de vida de médicos e investigar em que medida a adição ao trabalho a afeta. Métodos Trata-se de um estudo exploratório, descritivo e transversal, realizado com 1.110 médicos. Para coleta de dados, optou-se por utilizar um questionário contendo informações sociodemográficas, bem como aplicar o instrumento World Health Organization Quality of Life-BREF e a Escala de Adição ao Trabalho. Resultados Os médicos, em sua maioria, apresentaram alta qualidade de vida. Os participantes do sexo feminino tiveram menor qualidade de vida em relação aos homens nos domínios psicológico, meio ambiente e geral (p<0,05). A qualidade de vida correlacionou-se negativamente com o número de plantões (p<0,005), e quanto maior a adição ao trabalho, menor a qualidade de vida. Conclusão A pesquisa permitiu o conhecimento das implicações da adição ao trabalho sobre a qualidade de vida. Novos estudos são necessários para subsidiar a elaboração de estratégias que melhorem a saúde e a qualidade de vida do profissional médico.

Comparative evaluation of propofol in nanoemulsion with solutol and soy lecithin for general anesthesia / Avaliação comparativa do propofol em nanoemulsão com solutol e com lecitina de soja para anestesia geral

ABSTRACT INTRODUCTION: The vehicle for propofol in 1 and 2% solutions is soybean oil emulsion 10%, which may cause pain on injection, instability of the solution and bacterial contamination. Formulations have been proposed aiming to change the vehicle and reduce these adverse reactions. OBJECTIVES: To compare the incidence of pain caused by the injection of propofol, with a hypothesis of reduction associated with nanoemulsion and the occurrence of local and systemic adverse effects with both formulations. METHOD: After approval by the CEP, patients undergoing gynecological procedures were included in this prospective study: control (n = 25) and nanoemulsion (n = 25) groups. Heart rate, noninvasive blood pressure and peripheral oxygen saturation were monitored. Demographics and physical condition were analyzed; surgical time and total volume used of propofol; local or systemic adverse effects; changes in variables monitored. A value of p < 0.05 was considered significant. RESULTS: There was no difference between groups regarding demographic data, surgical times, total volume of propofol used, arm withdrawal, pain during injection and variables monitored. There was a statistically significant difference in pain intensity at the time of induction of anesthesia, with less pain intensity in the nanoemulsion group. CONCLUSIONS: Both lipid and nanoemulsion formulations of propofol elicited pain on intravenous injection; however, the nanoemulsion solution elicited a less intense pain. Lipid and nanoemulsion propofol formulations showed neither hemodynamic changes nor adverse effects of clinical relevance.

RESUMO INTRODUÇÃO: O veículo do propofol em soluções a 1 e 2% é a emulsão de óleo de soja a 10%, que pode provocar dor à injeção, instabilidade da solução e contaminação bacteriana. Formulações foram propostas com o objetivo de alterar o veículo e reduzir essas reações adversas. OBJETIVOS: Comparar a incidência de dor à injeção do propofol com a hipótese de redução associada à nanoemulsão e a ocorrência de efeitos adversos locais e sistêmicos com as duas formulações. MÉTODO: Após aprovação pelo Conselho de Ética em Pesquisa, foram incluídos neste estudo prospectivo pacientes submetidas a procedimentos cirúrgicos ginecológicos: grupos controle (n = 25) e nanoemulsão (n = 25). Foram monitorados frequência cardíaca, pressão arterial não invasiva e saturação periférica de oxigênio. Foram analisados dados demográficos e estado físico; tempo cirúrgico e volume total usado de propofol; efeitos adversos locais ou sistêmicos; alterações nas variáveis de monitoramento. Considerou-se significativo valor de p < 0,05. RESULTADOS: Não houve diferença entre os grupos em relação a: dados demográficos, tempos cirúrgicos, volume total usado de propofol, retirada do braço, presença de dor durante a injeção e variáveis de monitoramento. Verificou-se diferença estatística significativa na intensidade da dor no momento da indução da anestesia, com menor intensidade no grupo nanoemulsão. CONCLUSÕES: Ambas as formulações de propofol, lipídica e em nanoemulsão, elicitaram dor à injeção venosa, porém a solução de nanoemulsão promoveu dor em menor intensidade. O propofol lipídico e o propofol em nanoemulsão não apresentaram alterações hemodinâmicas e efeitos adversos de relevância clínica.

Comparative evaluation of propofol in nanoemulsion with solutol and soy lecithin for general anesthesia.

INTRODUCTION: The vehicle for propofol in 1 and 2% solutions is soybean oil emulsion 10%, which may cause pain on injection, instability of the solution and bacterial contamination. Formulations have been proposed aiming to change the vehicle and reduce these adverse reactions. OBJECTIVES: To compare the incidence of pain caused by the injection of propofol, with a hypothesis of reduction associated with nanoemulsion and the occurrence of local and systemic adverse effects with both formulations. METHOD: After approval by the CEP, patients undergoing gynecological procedures were included in this prospective study: control (n=25) and nanoemulsion (n=25) groups. Heart rate, noninvasive blood pressure and peripheral oxygen saturation were monitored. Demographics and physical condition were analyzed; surgical time and total volume used of propofol; local or systemic adverse effects; changes in variables monitored. A value of p<0.05 was considered significant. RESULTS: There was no difference between groups regarding demographic data, surgical times, total volume of propofol used, arm withdrawal, pain during injection and variables monitored. There was a statistically significant difference in pain intensity at the time of induction of anesthesia, with less pain intensity in the nanoemulsion group. CONCLUSIONS: Both lipid and nanoemulsion formulations of propofol elicited pain on intravenous injection; however, the nanoemulsion solution elicited a less intense pain. Lipid and nanoemulsion propofol formulations showed neither hemodynamic changes nor adverse effects of clinical relevance.

In vitro evaluation of the method effectiveness to limit inflation pressure cuffs of endotracheal tubes / Avaliação in vitro da eficácia de método para limitar a pressão de insuflação dos balonetes das cânulas endotraqueais

ABSTRACT BACKGROUND AND OBJECTIVE: Cuffs of tracheal tubes protect the lower airway from aspiration of gastric contents and facilitate ventilation, but may cause many complications, especially when the cuff pressure exceeds 30 cm H2O. This occurs in over 30% of conventional insufflations, so it is recommended to limit this pressure. In this study we evaluated the in vitro effectiveness of a method of limiting the cuff pressure to a range between 20 and 30 cm H2O. METHOD: Using an adapter to connect the tested tube to the anesthesia machine, the relief valve was regulated to 30 cm H2O, inflating the cuff by operating the rapid flow of oxygen button. There were 33 trials for each tube of three manufacturers, of five sizes (6.5-8.5), using three times inflation (10, 15 and 20 s), totaling 1485 tests. After inflation, the pressure obtained was measured with a manometer. Pressure >30 cm H2O or <20 cm H2O were considered failures. RESULTS: There were eight failures (0.5%, 95% CI: 0.1-0.9%), with all by pressures <20 cm H2O and after 10 s inflation (1.6%, 95% CI: 0 5-2.7%). One failure occurred with a 6.5 tube (0.3%, 95% CI: -0.3 to 0.9%), six with 7.0 tubes (2%, 95% CI: 0.4-3.6%), and one with a 7.5 tube (0.3%, 95% CI: -0.3 to 0.9%). CONCLUSION: This method was effective for inflating tracheal tube cuffs of different sizes and manufacturers, limiting its pressure to a range between 20 and 30 cm H2O, with a success rate of 99.5% (95% CI: 99.1-99.9%).

RESUMO JUSTIFICATIVA E OBJETIVO: Os balonetes das cânulas traqueais protegem as vias aéreas inferiores da aspiração de conteúdo gástrico e facilitam a ventilação pulmonar, mas podem provocar diversas complicações, principalmente quando a pressão do balonete supera 30 cm H2O. Isto ocorre em mais de 30% das insuflações convencionais, sendo recomendada a limitação desta pressão. Neste estudo avaliou-se in vitro a eficácia de um método para limitar a pressão dos balonetes à faixa entre 20 e 30 cm H2O. MÉTODO: Utilizando um adaptador para conectar a cânula testada ao aparelho de anestesia, regulou-se a válvula limitadora deste a 30 cm H2O, insuflando o balonete por meio do acionamento do botão de fluxo rápido de oxigênio. Realizaram-se 33 testes para cada cânula de três fabricantes, de cinco tamanhos (6.5 a 8.5), utilizando três tempos para insuflação (10, 15 e 20 segundos), totalizando 1485 testes. Terminada a insuflação, mediu-se a pressão obtida com um manômetro. Pressões >30 cm H2O ou < 20 cm H2O foram consideradas falhas. RESULTADOS: Ocorreram oito falhas (0,5%; IC 95%: 0,1-0,9%), sendo todas por pressões <20 cm H2O e após insuflações de 10 segundos (1,6%; IC 95%: 0,5-2,7%). Uma falha ocorreu com cânula 6.5 (0,3%; IC 95%: -0,3-0,9%), seis com cânulas 7.0 (2%; IC 95%: 0,4-3,6%), e uma com cânula 7.5 (0,3%; IC 95%: -0,3-0,9%). CONCLUSÃO: Este método mostrou-se eficaz para insuflar os balonetes de cânulas traqueais de diferentes tamanhos e fabricantes limitando sua pressão à faixa entre 20 e 30 cm H2O, com incidência de sucesso de 99,5% (IC 95%: 99,1-99,9%).

[In vitro evaluation of the method effectiveness to limit inflation pressure cuffs of endotracheal tubes]. / Avaliação in vitro da eficácia de método para limitar a pressão de insuflação dos balonetes das cânulas endotraqueais.

BACKGROUND AND OBJECTIVE: Cuffs of tracheal tubes protect the lower airway from aspiration of gastric contents and facilitate ventilation, but may cause many complications, especially when the cuff pressure exceeds 30cm H2O. This occurs in over 30% of conventional insufflations, so it is recommended to limit this pressure. In this study we evaluated the in vitro effectiveness of a method of limiting the cuff pressure to a range between 20 and 30cm H2O. METHOD: Using an adapter to connect the tested tube to the anesthesia machine, the relief valve was regulated to 30cm H2O, inflating the cuff by operating the rapid flow of oxygen button. There were 33 trials for each tube of three manufacturers, of five sizes (6.5 to 8.5), using three times inflation (10, 15 and 20seconds), totaling 1485 tests. After inflation, the pressure obtained was measured with a manometer. Pressure >30cm H2O or <20cm H2O were considered failures. RESULTS: There were eight failures (0.5%, 95% CI: 0.1-0.9%), with all by pressures <20cm H2O and after 10seconds inflation (1.6%, 95% CI: 0 5-2.7%). One failure occurred with a 6.5 tube (0.3%, 95% CI: -0.3-0.9%), six with 7.0 tubes (2%, 95% CI: 0.4 to 3.6%), and one with a 7.5 tube (0.3%, 95% CI: -0.3-0.9%). CONCLUSION: This method was effective for inflating tracheal tube cuffs of different sizes and manufacturers, limiting its pressure to a range between 20 and 30cm H2O, with a success rate of 99.5% (95% CI: 99.1-99.9%).

Prevalência de sintomas depressivos e ansiosos em pacientes com dor crônica / Prevalence of depressive and anxiety symptoms in patients with chronic pain

Objetivos O presente estudo objetivou avaliar a prevalência de sintomas ansiosos e depressivos e relacioná-los com os diferentes tipos e magnitudes de dor crônica; também objetivou caracterizar a população de casos novos agendados para atendimento no ambulatório de dor crônica, no serviço onde o estudo foi realizado. Métodos Estudo de corte transversal, realizado em um ambulatório docente-assistencial para tratamento de dor crônica, realizado entre maio de 2012 e abril de 2013, com 125 pacientes. Instrumentos utilizados Questionário sociodemográfico, Escala Hospitalar de Ansiedade e Depressão (HAD) e Escala Visual Numérica (EVN) para aferir a intensidade de dor. Resultados Dor intensa foi referida por 64% (n = 80) dos pacientes. Ansiedade atingiu 65% (N = 82) dos pacientes e a depressão, 48% (N = 60). Houve correlação significante entre os mais altos escores de ansiedade (p < 0,001) e depressão (p < 0,001) com a intensidade de dor. A correlação entre intensidade de dor e sintomas ansiosos e depressivos foi positiva para dor crônica neuropática e mista. Os fatores sociodemográficos associados à intensidade de dor crônica foram: renda e religião para depressão, e tempo de dor para ansiedade. Conclusão O estudo mostrou elevada prevalência de sintomas depressivos e ansiosos em pacientes com dor crônica, assim como relação significante desses sintomas psiquiátricos com alguns tipos e intensidade de dor. .

Objectives The present study aimed to evaluate the prevalence of anxiety and depressive symptoms and their association with different types and intensity of chronic pain. The investigation also characterized the population profile of new cases scheduled for appointments at the pain outpatient clinic, where the study was carried out. Methods Cross-sectional study, carried out at a chronic pain treatment outpatient-teaching clinic, between May 2012 and April 2013, with 125 patients. The following instruments were used: Sociodemographic questionnaire, Hospital Anxiety and Depression Scale (HADS), and Visual Numeric Scale (VNS) to assess the intensity of pain. Results Intense pain was reported by 64% (n = 80) of patients. With a cut-off of 8 points for HAD scale, anxiety affected 65% (N = 82) of patients, and depression affected 48% (N = 60). We found a significant correlation between higher scores of anxiety (p < 0.001) and depression (p < 0.001) with pain intensity. The correlation between pain intensity, anxiety and depressive symptoms was positive for neuropathic pain as well as for mixed chronic pain. Sociodemographic factors associated to chronic pain intensity were income and religion for depression, and time living with pain for anxiety. Conclusion The present study showed high prevalence of depressive and anxiety symptoms in patients with chronic pain. There was also significant association of these psychiatric symptoms with some types and intensity of pain. .

Impacto do tipo de informação pré-anestésica sobre a ansiedade dos pais e das crianças / Impact of preanesthetic information on anxiety of parents and children / Impacto del tipo de información preanestésica sobre la ansiedad de los padres y de los niños

JUSTIFICATIVA E OBJETIVOS: Ansiedade pré-operatória é um fator negativo na experiência anestésico-cirúrgica. Dentre as estratégias para redução da ansiedade em crianças, as não farmacológicas são tão importantes quanto as farmacológicas, porém sua validade ainda é controversa. Verificar se a informação oferecida aos responsáveis interfere na ansiedade da criança. MÉTODOS: 72 crianças de 4 a 8 anos, ASA I e II, submetidas a procedimentos cirúrgicos eletivos e seus responsáveis, divididos aleatoriamente em: Grupo Controle (GC) = responsável recebeu informação anestésica convencional; e Grupo Informativo (GI) = responsável recebeu folheto sobre a anestesia. Foi avaliada ansiedade das crianças pela escala de ansiedade pré-operatória de Yale modificada (EAPY-m), em dois momentos, na sala de espera do centro cirúrgico (SE) e na sala de operação (SO), e dos pais, pela Escala de ansiedade de Hamilton (HAM-A) em SE. RESULTADOS: Não houve diferença nos dados sociodemográficos entre os grupos. O nível de ansiedade nas crianças não apresentou diferença entre os grupos nos dois momentos. Houve diferença estatística significativa nos níveis de ansiedade entre SE e SO nos dois grupos, p = 0,0019 no GC e p < 0,0001 no GI, assim como na prevalência de ansiedade em GC (SE 38,9% e SO 69,4%, p = 0,0174) e em GI (SE 19,4% e SO 83,3%, p< 0,0001). O nível de ansiedade dos responsáveis não apresentou diferença entre os grupos. CONCLUSÃO: Independentemente da qualidade de informação oferecida aos responsáveis, o nível e a prevalência de ansiedade das crianças foram baixos no momento SE e aumentaram significativamente no momento SO.

BACKGROUND AND OBJECTIVES: Preoperative Anxiety is a negative factor in anesthetic and surgical experience. Among the strategies for reducing children's anxiety, non-pharmacological strategies are as important as the pharmacological ones, but its validity is still controversial. OBJECTIVES: The aim of this study was to verify if the information provided to guardians interferes with child anxiety. METHODS: 72 children, 4-8 years old, ASA I and II, undergoing elective surgical procedures and their guardians were randomly divided into two groups: control group (CG) = guardian received conventional information about anesthesia; informative group (IG) = guardian received an information leaflet about anesthesia. Children's anxiety was assessed using the modified Yale Preoperative Anxiety Scale (m-YPAS) on two occasions: at the surgical theater waiting room (WR) and at the operating room (OR). Parents' anxiety was assessed using the Hamilton Anxiety Scale (HAM-A) at the CT. RESULTS: There was no difference in demographic data between groups. The level of anxiety in children showed no difference between groups at two measured times. There was statistically significant difference in anxiety levels between WR and OR in both groups, p = 0.0019 for CG and p < 0.0001 for GI, as well as the prevalence of anxiety for CG (38.9% WR and 69.4 % OR, p = 0.0174) and GI (19.4% WR and 83.3% OR, p < 0.0001). The anxiety level of guardians did not differ between groups. CONCLUSION: Regardless of the quality of information provided to the guardians, the level and prevalence of anxiety in children were low at WR time and significantly increased at OR time.

JUSTIFICATIVA Y OBJETIVOS: La ansiedad preoperatoria es un factor negativo en la experiencia anestésico-quirúrgica. Entre las estrategias para la reducción de la ansiedad en niños, las no farmacológicas son tan importantes como las farmacológicas, pero su caducidad todavía es algo controversial. Verificar si la información ofrecida a los responsables interfiere en la ansiedad del niño. MÉTODOS: Setenta y dos (72) niños de 4 a 8 años, con ASA I y II, sometidos a procedimientos quirúrgicos electivos y sus responsables, divididos aleatoriamente en: Grupo Control (GC) = responsable recibió una información anestésica convencional; y el Grupo Informativo (GI) = responsable recibió un folleto sobre la anestesia. Se evaluó la ansiedad de los niños por la escala de ansiedad preoperatoria de Yale modificada (EAPY-m), en dos momentos, en la sala de espera del centro quirúrgico (SE) y en el quirófano (Q), y de los padres, por la escala de Hamilton (HAM-A) en SE. RESULTADOS: No hubo diferencia en los datos sociodemográficos entre los grupos. El nivel de ansiedad en los niños no presentó ninguna diferencia entre los grupos en los dos momentos. Hubo una diferencia estadística significativa en los niveles de ansiedad entre SE y Q en los dos grupos, p = 0,0019 en el GC y p < 0,0001 en el GI, como también en la prevalencia de ansiedad en GC (SE 38,9% y Q 69,4%, p = 0,0174) y en GI (SE 19,4% y Q 83,3%, p< 0,0001). El nivel de ansiedad de los responsables no presentó diferencia entre los grupos. CONCLUSIONES: Independientemente de la calidad de la información ofrecida a los responsables, el nivel y la prevalencia de ansiedad de los niños fueron bajos en el momento SE aumentando significativamente en el momento Q.

Impact of preanesthetic information on anxiety of parents and children.

BACKGROUND AND OBJECTIVES: Preoperative Anxiety is a negative factor in anesthetic and surgical experience. Among the strategies for reducing children's anxiety, non-pharmacological strategies are as important as the pharmacological ones, but its validity is still controversial. OBJECTIVES: The aim of this study was to verify if the information provided to guardians interferes with child anxiety. METHODS: 72 children, 4-8 years old, ASA I and II, undergoing elective surgical procedures and their guardians were randomly divided into two groups: control group (CG) = guardian received conventional information about anesthesia; informative group (IG) = guardian received an information leaflet about anesthesia. Children's anxiety was assessed using the modified Yale Preoperative Anxiety Scale (m-YPAS) on two occasions: at the surgical theater waiting room (WR) and at the operating room (OR). Parents' anxiety was assessed using the Hamilton Anxiety Scale (HAM-A) at the CT. RESULTS: There was no difference in demographic data between groups. The level of anxiety in children showed no difference between groups at two measured times. There was statistically significant difference in anxiety levels between WR and OR in both groups, p = 0.0019 for CG and p < 0.0001 for GI, as well as the prevalence of anxiety for CG (38.9% WR and 69.4% OR, p = 0.0174) and GI (19.4% WR and 83.3% OR, p < 0.0001). The anxiety level of guardians did not differ between groups. CONCLUSION: Regardless of the quality of information provided to the guardians, the level and prevalence of anxiety in children were low at WR time and significantly increased at OR time.

A comparative study of non-lipid nanoemulsion of propofol with solutol and propofol emulsion with lecithin.

BACKGROUND AND OBJECTIVES: Some formulations have been proposed to reduce the adverse reactions due to the lipid emulsion containing soybean oil used as propofol carrier. This study for endoscopy sedation was aimed at evaluating and comparing the safety, effectiveness and adverse effects of the use of propofol nanoemulsion compared to propofol currently commercialized. METHOD: In this prospective study, 150 patients were submitted to upper digestive endoscopy. These patients were allocated into two groups: the control group (CONT Group; n=75) and the nanoemulsion group (NE Group; n=75). HR, SBP, DBP, SpO(2) and BIS (which is considered to be appropriate between 65 and 75 during procedure) were monitored. Gender, age, weight, height, BMI, ASA physical status, times and doses were analyzed, as well as adverse effects (phlogistic signs and pain on injection, apnea, nausea/vomiting) and alterations in monitoring variables. A p-value < 0.05 was considered significant. RESULTS: The groups had similar results concerning anthropometric data and physical status. None of the patients developed apnea or presented phlogistic signs in the injection site. The incidence of pain on injection in the CONT Group was 82.7% and 53.3% in the NE Group (p<0.001), and the incidence of nausea and vomiting was 10.7% in the CONT Group and 2.7% in the NE Group (p>0.05). The times, induction doses and the SBP and DBP values at the end of examination and at the moment of discharge from the PACU were lower in the NE Group (p<0.05). CONCLUSIONS: Lipid propofol and propofol nanoemulsion were equivalent concerning effectiveness, safety and adverse effects in the doses used. There was a lower incidence of pain on injection in the nanoemulsion formulation.