Sedación y Analgesia en Colonoscopia Electiva: Propofol-fentanilo versus Propofol-Alfentanilo

ResumenJustificativa y objetivoLa sedación y la analgesia están recomendadas en la colonoscopia para propiciar la comodidad, porque son procedimientos invasivos y pueden ser dolorosos. Este estudio tuvo el objetivo de comparar las combinaciones de propofol-alfentanilo y propofol-fentanilo para la sedación y la analgesia en pacientes sometidos a la colonoscopia electiva.MétodosEstudio prospectivo y aleatorio. Participaron en el estudio 80 pacientes, ASA I-II, entre 18 y 65 años. La inducción de sedación y la analgesia fue hecha con propofol (1 mg.kg-1) y fentanilo (1 μg.kg-1) en el grupo propofol-fentanilo (PF) y con propofol (1 mg.kg-1) y alfentanilo (10 μg.kg-1) en el grupo propofol-alfentanilo (PA). Para el mantenimiento, dosis adicionales de propofol se administraron en bolos de 0,5 mg.kg-1 para obtener las puntuaciones de 3-4 en la Escala de Sedación de Ramsey (ESR). Se registraron los datos demográficos, la frecuencia cardíaca, la presión arterial promedio (PAP), la saturación de oxígeno de la hemoglobina (SpO2), los valores de la ESR, el tiempo de colonoscopia, la dosis total de propofol, las complicaciones, el tiempo de recuperación y el tiempo para el alta, como también las puntuaciones de satisfacción del colonoscopista y del paciente.ResultadosLa PAP a los 15 minutos en el Grupo PA fue significativamente mayor que en el Grupo PF (p = 0,037). La frecuencia cardíaca promedio del grupo PA fue mayor al inicio que en las mensuraciones posteriores (p = 0,012, p = 0,002). El promedio de la dosis total de propofol del Grupo PA fue significativamente mayor que la del Grupo PF (p = 0,028). El tiempo promedio de recuperación del grupo PA fue significativamente mayor que el del grupo PF (p = 0,032).ConclusionesEl Fentanilo proporciona mejores condiciones de operación y reduce la necesidad de dosis adicionales de propofol. Esas ventajas reducen el tiempo de recuperación. Por tanto, el propofol-fentanilo es superior al propofol-alfentanilo para la sedación y la analgesia en la colonoscopia

Sedation-Analgesia in Elective Colonoscopy: Propofol-Fentanyl Versus Propofol-Alfentanil

AbstractBackground and objectivesSedation-analgesia is recommended for comfortable colonoscopy procedures, which are invasive and can be painful. This study aimed to compare the combinations of propofol-alfentanil and propofol-fentanyl for sedation-analgesia in elective colonoscopy patients.MethodsThis prospective and randomized study was planned in ASA I-II groups and included 80 patients between the ages of 18 and 65 years. Sedation-analgesia induction was performed as 1μg.kg-1 fentanyl, 1mg.kg-1 propofol in the propofol-fentanyl group (Group PF) and 10μg.kg-1 alfentanil, 1mg.kg-1 propofol in the propofol-alfentanil group (Group PA). Patients’ scores were limited to 3-4 values on the Ramsey Sedation Scale (RSS) by 0.5mg.kg-1 bolus additional doses of propofol in sedation-analgesia maintenance. We recorded demographical data, heart rate, mean arterial pressure (MAP), oxygen saturation of hemoglobin (SpO2), RSS value, colonoscopy time, total dose of propofol, complications, recovery time, and discharge time, as well as colonoscopist and patient satisfaction scores.ResultsMAP at the 15th minute in Group PA was significantly higher than in Group PF (p = 0.037). Group PA's beginning mean heart rate was higher than the mean heart rate at subsequent readings (p = 0.012, p = 0.002). The mean total propofol dose of Group PA was significantly higher than the total dose of Group PF (p = 0.028). The mean recovery time of Group PA was significantly longer than that of Group PF (p = 0.032).ConclusionFentanyl provides better operative conditions and reduces the need for additional propofol doses. These advantages cause a shorter recovery time. Therefore, propofol-fentanyl is superior to the propofol-alfentanil for sedation-analgesia in colonoscopy

Prophylactic and therapeutic effect of ginko biloba extract (Egb761) on mortality of intestinal deep ischemia-reperfusion model in rats

Objectives: Ginkgo biloba extract (EGb761) is a standardized form of Ginkgo Biloba plant leaves which have been used by Chines nearly 5000 years and Its’ antioxidant activity is known. In this study we aimed to investigate effect use of EGb761 on mortality in Megison'un deep ischemia reperfusion model of rats.Materials and Methods: 138 male Spraque-Dawley rats were used in this study. The rats were divided into 4 groups: Group I (control group), Group II (deep ischemia-reperfusion group), Group III (Group of prophylaxis and treatment of deep ischemia-reperfusion with EGb 761), Group IV (group of treatment with EGb 761 during deep ischemia). Deep ischemia was applied 30 minutes. Rats were followed-up one week after laparotomy. Differences between numbers of mortality in groups during one week follow-up were compared.Results: Number of died rats in Group I, II, III, and IV during one week follow-up were 2 (7.7%), 22 (61.1%), 6 (13.6%), and 11 (34.3%) respectively. Mortality rate decreased statistically significant with use of EGb761 with pro-phylactic and therapeutic purposes (p<0.001, p<0.028).Conclusion: EGb761's prophylactic and therapeutic benefit on intestinal ischemia reperfusion injury was observed. However, these results should be supported with further biochemical and histopathological studies

Serum ischemia-modified albumin levels in adolescent smokers

It is known that the biochemical marker linked to tissue ischemia, ischemia-modified albumin (IMA), is related to oxidative stress. Cigarette smoking is a situation with increased oxidative stress causing cell damage and it is thought that many of the negative effects linked to smoking may occur after the biological material in the body is exposed to oxidative damage. This study aimed to identify variability in serum IMA levels in adolescents who smoke. This case-control study comprised 60 adolescents without any chronic disease. The smoking group was 30 adolescents between the ages of 14 and 17 years who smoked, while the control group was 30 healthy adolescents who did not smoke. Blood samples were collected from all subjects and serum IMA levels and serum nicotine metabolites were determined. The serum IMA levels in the adolescents who smoked were 0.452±0.094 absorbance unit (ABSU), while the control group had ASBU levels of 0.427±0.054. There was no significant difference between the groups in terms of serum IMA levels (p=0.210). There was a significant difference between the control and smoking groups in terms of serum nicotine metabolite levels (p<0.001). Among adolescents who smoke, serum IMA levels may not be a good marker for oxidative stress

Right aortic arch with aberran left subclavian artery; accompanied with crossed pulmonary arteries: a rare association

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Sedação e analgesia em colonoscopia eletiva: propofol-fentanil versus propofol-alfentanil

JUSTIFICATIVA E OBJETIVO: Sedação e analgesia são recomendadas em colonoscopia para propiciar conforto, pois são procedimentos invasivos e podem ser dolorosos. Este estudo teve como objetivo comparar as combinações de propofol-alfentanil e propofol-fentanil para sedação e analgesia em pacientes submetidos à colonoscopia eletiva. MÉTODOS: Estudo prospectivo e randomizado. Participaram do estudo 80 pacientes, ASA I-II, entre 18 e 65 anos. A indução de sedação e a analgesia foram feitas com propofol (1 mg.kg-1) e fentanil (1 µg.kg-1) no grupo propofol-fentanil (PF) e com propofol (1 mg.kg-1) e alfentanil (10 µg.kg-1) no grupo propofol-alfentanil (PA). Para manutenção, doses adicionais de propofol foram administradas em bolus de 0,5 mg.kg-1 para obter escores de 3-4 na Escala de Sedação de Ramsey (ESR). Registrados os dados demográficos, a frequência cardíaca, a pressão arterial média (PAM), a saturação de oxigênio da hemoglobina (SpO2), os valores da ESR, o tempo de colonoscopia, a dose total de propofol, as complicações, o tempo de recuperação e o tempo para alta, bem como os escores de satisfação do colonoscopista e do paciente. RESULTADOS: A PAM aos 15 minutos no Grupo PA foi significativamente maior do que no Grupo PF (p = 0,037). A frequência cardíaca média do grupo PA foi maior no início do que nas mensurações subsequentes (p = 0,012, p = 0,002). A média da dose total de propofol do Grupo PA foi significativamente maior do que a do Grupo PF (p = 0,028). O tempo médio de recuperação do grupo PA foi significativamente maior do que o do grupo PF (p = 0,032). CONCLUSÃO: Fentanil proporciona melhores condições de operação e reduz a necessidade de doses adicionais de propofol. Essas vantagens diminuem o tempo de recuperação. Portanto, propofol-fentanil é superior ao propofol-alfentanil para sedação e analgesia em colonoscopia