Indicators of haemodynamic instability and left ventricular function in a porcine model of esmolol induced negative inotropy.

To investigate if the Hypotension Prediction Index was an early indicator of haemodynamic instability in a negative inotropy porcine model, and to assess the correlation of commonly measured indicators of left ventricular systolic function. Eight anaesthetised pigs were volume resuscitated and then underwent an incremental infusion of esmolol hydrochloride (0-3000 mg/hr), following which it was then reduced in a stepwise manner. Full haemodynamic measurements were taken at each stage and measurements of left ventricular systolic function including left ventricular stroke work index, ejection fraction and peripheral dP/dT were obtained. At an infusion rate of 500 mg/hr of esmolol there were no significant changes in any measured variables. At 1000 mg/hr MAP was on average 11 mmHg lower (95% CI 1 to 11 mmHg, p = 0.027) with a mean of 78 mmHg, HPI increased by 33 units (95% CI 4 to 62, p = 0.026) with a mean value of 63. No other parameters showed significant change from baseline values. Subsequent increases in esmolol showed changes in all parameters except SVV, SVR and PA mean. Correlation between dP/dt and LVSWI was 0.85 (95% CI 0.77 to 0.90, p < 0.001), between LVEF and dP/dt 0.39 (95% CI 0.18 to 0.57, p < 0.001), and between LSWI and LVEF 0.41 (95% CI 0.20 to 0.59, p < 0.001). In this model haemodynamic instability induced by negative inotropy was detected by the HPI algorithm prior to any clinically significant change in commonly measured variables. In addition, the peripheral measure of left ventricular contractility dP/dt correlates well with more established measurements of LV systolic function.

[Project evidência [evidence]: research and education about accessing scientific databases in Azores]. / Projeto Evidência: investigação e formação sobre acesso a bases de dados de informação científica nos Açores.

Project Evidência [Evidence] intends to promote the use of scientific databases among nurses. This study aims to design educational interventions that facilitate nurses' access to these databases, to determine nurses' habits regarding the use of scientific databases, and to determine the impact that educational interventions on scientific databases have on Azorean nurses who volunteered for this project. An intervention project was conducted, and a quantitative descriptive survey was designed to evaluate the impact two and five months after the educational intervention. This impact was investigated considering certain aspects, namely, the nurses' knowledge, habits and reasons for using scientific databases. A total of 192 nurses participated in this study, and the primary results indicate that the educational intervention had a positive impact based not only on the increased frequency of using platforms or databases of scientific information (DSIs) s but also on the competence and self-awareness regarding its use and consideration of the reasons for accessing this information.

Projeto Evidência: investigação e formação sobre acesso a bases de dados de informação científica nos Açores / Project evidência [evidence]: research and education about accessing scientific databases in Azores / Proyecto evidencia: investigación y formación sobre acceso a bases de datos de información científica en las Azores

O projeto Evidência visa estimular os enfermeiros na utilização das bases de dados de informação científica. Este estudo teve por objetivos desenhar uma intervenção formativa facilitadora do acesso a essas bases de dados por parte dos enfermeiros, efetuar avaliação de diagnóstico relativamente aos hábitos dos enfermeiros quanto a esse tipo de ferramenta e determinar o impacto de uma intervenção formativa sobre essas matérias entre os enfermeiros residentes nos Açores. Em termos metodológicos, foi desenhado um projeto de intervenção e realizado um estudo quantitativo, do tipo descritivo, para avaliar esse impacto aos dois e cinco mêses após a formação, em dimensões como o conhecimento, hábitos e objetivos de utilização. No projeto participaram 192 enfermeiros, e os resultados apontam para um impacto positivo dessa formação, não só no aumento da frequência de utilização das bases de dados de informação científica, como na autopercepção de competência na sua utilização e motivos invocados para explorar esse tipo de informação.

Project Evidência [Evidence] intends to promote the use of scientific databases among nurses. This study aims to design educational interventions that facilitate nurses' access to these databases, to determine nurses' habits regarding the use of scientific databases, and to determine the impact that educational interventions on scientific databases have on Azorean nurses who volunteered for this project. An intervention project was conducted, and a quantitative descriptive survey was designed to evaluate the impact two and five months after the educational intervention. This impact was investigated considering certain aspects, namely, the nurses' knowledge, habits and reasons for using scientific databases. A total of 192 nurses participated in this study, and the primary results indicate that the educational intervention had a positive impact based not only on the increased frequency of using platforms or databases of scientific information (DSIs) s but also on the competence and self-awareness regarding its use and consideration of the reasons for accessing this information.

El proyecto Evidencia procura estimular al enfermero a utilizar bases de datos de información científica. Se objetivó ejecutar una intervención formativa para facilitar el acceso a tales bases por parte de enfermeros, efectuar evaluaciones de diagnóstico relativas a hábitos del enfermero respecto de dichas herramientas y determinar el impacto de una intervención educativa sobre el tema entre enfermeros residentes en las Azores. En términos metodológicos, fue diseñado un proyecto de intervención y realizado un estudio cuantitativo y descriptivo, para evaluar ese impacto a los dos y cinco meses luego de la formación, en dimensiones como conocimiento, habitualidad y objetivos de utilización. Participaron 192 enfermeros. Los resultados expresan un impacto positivo de la formación, no sólo en el aumento de frecuencia de utilización de bases de datos, sino también en la autopercepción de competencia en el uso y motivos expresados para abordar este tipo de información.