[Effects of remifentanil on awakening of propofol sedated patients submitted to upper gastrointestinal endoscopy: a randomized clinical trial]. / Efeitos do remifentanil sobre despertar de pacientes sedados com propofol para endoscopia digestiva alta: estudo clínico randomizado.

BACKGROUND AND OBJECTIVES: Sedation for endoscopic procedures aims to provide high quality sedation, lower risks, short recovery time, superior recovery quality and absence of side effects, seeking high patient level of satisfaction. The goal of the study was to assess administration of remifentanil combined with propofol regarding the effects of the drug association during sedation and recovery for patients submitted to upper GI diagnostic endoscopy. METHOD: One hundred and five patients were assessed, randomly divided into three groups of 35 patients. The Control Group was sedated with propofol alone. Study Group 1 was sedated with a fixed dose of 0.2 µg.kg-1 remifentanil combined with propofol. Study Group 2 was sedated with 0.3 µg.kg-1 remifentanil combined with propofol. We assessed the quality of sedation, hemodynamic parameters, incidence of significant hypoxemia, time for spontaneous eye opening, post-anesthetic recovery time, quality of post-anesthetic recovery, presence of side effects and patient satisfaction. RESULTS: Study Group 1 showed better quality of sedation. The groups in which remifentanil was administered combined with propofol showed shorter eye-opening time and shorter post-anesthetic recovery time compared to the control group. The three groups presented hemodynamic changes at some of the moments assessed. The incidence of significant hypoxemia, the quality of post-anesthetic recovery, the incidence of side effects and patient satisfaction were similar in the three groups. CONCLUSIONS: The combination of propofol with remifentanil at a dose of 0.2 µg.kg-1 was effective in improving the quality of sedation, and at doses of 0.2 µg.kg-1 and 0.3 µg.kg-1 reduced the time to spontaneous eye opening and post-anesthetic recovery in comparison to sedation with propofol administered alone.

Effects of remifentanil on awakening of propofol sedated patients submitted to upper gastrointestinal endoscopy: a randomized clinical trial / Efeitos do remifentanil sobre despertar de pacientes sedados com propofol para endoscopia digestiva alta: estudo clínico randomizado

Abstract Background and objectives: Sedation for endoscopic procedures aims to provide high quality sedation, lower risks, short recovery time, superior recovery quality and absence of side effects, seeking high patient level of satisfaction. The goal of the study was to assess administration of remifentanil combined with propofol regarding the effects of the drug association during sedation and recovery for patients submitted to upper gastrointestinal diagnostic endoscopy. Method: One hundred and five patients were assessed, randomly divided into three groups of 35 patients. The Control Group was sedated with propofol alone. Study Group 1 was sedated with a fixed dose of 0.2 µg.kg−1 remifentanil combined with propofol. Study Group 2 was sedated with 0.3 µg.kg−1 remifentanil combined with propofol. We assessed the quality of sedation, hemodynamic parameters, incidence of significant hypoxemia, time for spontaneous eye opening, post-anesthetic recovery time, quality of post-anesthetic recovery, presence of side effects and patient satisfaction. Results: Study Group 1 showed better quality of sedation. The groups in which remifentanil was administered combined with propofol showed shorter eye-opening time and shorter post-anesthetic recovery time compared to the control group. The three groups presented hemodynamic changes at some of the moments assessed. The incidence of significant hypoxemia, the quality of post-anesthetic recovery, the incidence of side effects and patient satisfaction were similar in the three groups. Conclusions: The combination of propofol with remifentanil at a dose of 0.2 µg.kg−1 was effective in improving the quality of sedation, and at doses of 0.2 µg.kg−1 and 0.3 µg.kg−1 reduced the time to spontaneous eye opening and post-anesthetic recovery in comparison to sedation with propofol administered alone.

Resumo Justificativa e objetivos: A sedação para procedimentos endoscópicos pretende fornecer boa qualidade de sono, menores riscos, tempo de recuperação mais curto, qualidade de recuperação superior e ausência de efeitos colaterais, buscando um elevado nível de satisfação dos pacientes. O objetivo deste estudo foi avaliar a influência da associação do remifentanil ao propofol e seus efeitos durante a sedação e a recuperação em exames de endoscopia digestiva alta diagnóstica. Método: Foram avaliados 105, divididos aleatoriamente em três grupos de 35 pacientes. O Grupo Controle foi sedado apenas com o uso de propofol, o Grupo de Estudo 1 foi sedado com uso de remifentanil em dose fixa de 0,2 µg.Kg-1 associado ao propofol. E o Grupo de Estudo 2 foi sedado com o uso de remifentanil em dose fixa de 0,3 µg.Kg-1 associado ao propofol. Foram avaliadas a qualidade da sedação, comportamento hemodinâmico, incidência de hipoxemia significativa, tempo para abertura ocular espontânea, tempo de recuperação pós-anestésica, qualidade da recuperação pós-anestésica, presença de efeitos colaterais e satisfação do paciente. Resultado: O Grupo de Estudo 1 apresentou melhor qualidade de sedação. Os grupos em que se associou o remifentanil apresentaram tempo para abertura ocular e tempo de recuperação anestésica mais curtos em relação ao grupo controle. Os três grupos apresentaram alterações hemodinâmicas em algum dos momentos avaliados. A incidência de hipoxemia significativa, a qualidade da recuperação pós-anestésica, a incidência de efeitos colaterais e a satisfação dos pacientes foram similares nos três grupos. Conclusão: Conclui-se que a associação do remifentanil na dose de 0,2 µg.kg-1 mostrou-se efetivo na melhora da qualidade da sedação, e nas doses 0,2 µg.kg-1 e de 0,3 µg.kg-1 reduziu o tempo de abertura ocular espontânea e o tempo de recuperação pós-anestésica dos pacientes em relação a sedação apenas com propofol.

Seguridad y eficiencia de sedación balanceada con propofol y remifentanil en endoscopia digestiva alta diagnóstica. Una experiencia exitosa / A Successful Experience: Safety and Efficiency of Balanced Sedation with Propofol and Remifentanil in Diagnostic Endoscopy

Resumen La sedación es una técnica anestésica de amplio uso en los procedimientos endoscópicos digestivos actuales dado su claro beneficio en la tolerancia y comodidad para el paciente y el endoscopista. El medicamento de mayor uso en la actualidad para utilizarse como monosedación es el propofol, pero los esquemas balanceados utilizando más de un medicamento ahora son ampliamente usados en endoscopia diagnóstica o terapéutica. La sedación balanceada utilizando propofol y remifentanilo permite la potenciación sinérgica de un sedante con un opioide de ultracorta acción, lo que a su vez favorece la disminución respectiva de cada dosis. Se presenta una serie de 1148 pacientes llevados a endoscopia digestiva alta diagnóstica con dosis promedio de remifentanilo de 0,9 µg/kg de peso y de propofol de 0,47 mg/kg de peso, sin eventos adversos graves, con excelente satisfacción para el endoscopista y con muy bajo costo de la dosis por medicamento, con lo que se infiere que es un esquema seguro y eficiente.

Abstract Sedation is an anesthetic technique that is widely used in current digestive endoscopic procedures because of its clear benefits for patients' tolerance and comfort and for the endoscopist. Propofol is the most commonly used drug in monosedation, but balanced regimens using more than one drug are now widely used in diagnostic and therapeutic endoscopy. Balanced sedation using Propofol and Remifentanil allows synergistic potentiation of a sedative with an ultra-short acting opioid which in turn favors decreases of each dose. This is a series of 1,148 patients who underwent diagnostic endoscopy under balanced sedation with average Remifentanil doses of 0.9 mcg/kg of body weight and average Propofol doses of 0.47 mg/kg of body weight. There were no serious adverse events, endoscopists were highly satisfied with the procedures, and costs per drug dose were very low. This is clearly a safe and efficient scheme.

Imágenes de banda angosta (IBA): nuevo aporte al diagnóstico endoscópico / Narrow band imaging (NBI): a new endoscopic diagnostic approach

La técnica endoscópica IBA, representa un importante avance en el diagnóstico endoscópico, al mejorar la visualización de la superficie de la mucosa y su patrón vascular. Los datos aportados por esta técnica son útiles en el diagnóstico diferencial entre lesiones superficiales benignas y malignas, permitiendo la toma de biopsias dirigidas a áreas de riesgo, sin la necesidad del uso de colorantes y las dificultades técnicas que se relacionan con su uso.

The NBI, is a new tool that represent an important advance in endoscopy, improving observation of the mucosal surface and vascular pattern. These findings are useful for, differential diagnosis between benign and malignant superficial lesions and allows to target areas of risk and to obtain biopsies in several mucosal lesions, without use of dye spraying and technical problems related to this procedure