Adjuvant intra-arterial hepatic fotemustine for high-risk uveal melanoma patients.

Uveal melanoma metastases occur most commonly in the liver. Given the 50% mortality rate in patients at high risk of developing liver metastases, we tested an adjuvant intra-arterial hepatic (i.a.h.) chemotherapy with fotemustine after proton beam irradiation of the primary tumour. We treated 22 high-risk patients with adjuvant i.a.h. fotemustine. Planned treatment duration was 6 months, starting with four weekly doses of 100 mg/m(2), and after a 5-week rest, repeated every 3 weeks. The survival of this patient group was compared with that of a 3 : 1 matched control group randomly selected from our institutional database. Half of the patients experienced > or =grade 3 hepatotoxicity (one patient developing cholangitis 8 years later). Catheter-related complications occurred in 18%. With a median follow-up of 4.6 years for the fotemustine group and 8.5 years for the control group, median overall survival was 9 years [95% confidence interval (CI) 2.2-12.7] and 7.4 years (95% CI 5.4-12.7; P=0.5), respectively, with 5-year survival rates of 75 and 56%. Treatment with adjuvant i.a.h. fotemustine is feasible. However, toxicities are important. Although our data suggest a survival benefit, it was not statistically significant. Confirming such a benefit would require a large, internationally coordinated, prospective randomized trial.

Usefulness of intra-articular bupivacain and lidocain adjunction in MR or CT arthrography: a prospective study in 148 patients.

PURPOSE: To evaluate the influence of shorter- and longer-acting intra-articular anaesthetics on post-arthrographic pain. MATERIALS AND METHODS: 154 consecutive patients investigated by MR or CT arthrographies were randomly assigned to one of the following groups: 1--intra-articular contrast injection only; 2--lidocain 1% adjunction; or 3--bupivacain 0.25% adjunction. Pain was assessed before injection, at 15 min, 4 h, 1 day and 1 week after injection by visual analogue scale (VAS). RESULTS: At 15 min, early mean pain score increased by 0.96, 0.24 and 0 in groups 1, 2 and 3, respectively. Differences between groups 1 & 3 and 1 & 2 were statistically significant (p=0.003 and 0.03, respectively), but not between groups 2 & 3 (p=0.54). Delayed mean pain score increase was maximal at 4 h, reaching 1.60, 1.22 and 0.29 in groups 1, 2 and 3, respectively. Differences between groups 1 & 2 and 2 & 3 were statistically significant (p=0.002 and 0.02, respectively), but not between groups 1 & 2 (p=0.46). At 24 h and 1 week, the interaction of local anaesthetics with increase in pain score was no longer significant. Results were independent of age, gender and baseline VAS. CONCLUSION: Intra-articular anaesthesia may significantly reduce post-arthrographic pain. Bupivacain seems to be more effective than lidocain to reduce both early and delayed pain.

How do coil configuration and packing density influence intra-aneurysmal hemodynamics?

Endovascular coiling is a well-established therapy for treating intracranial aneurysms. Nonetheless, postoperative hemodynamic changes induced by this therapy remain not fully understood. The purpose of this work is to assess the influence of coil configuration and packing density on intra-aneurysmal hemodynamics

Hipotermia no período intra-operatório: é possível evitá-la?

O estudo teve como objetivo identificar as medidas adotadas para a prevenção de hipotermia no período intra-operatório. Trata-se de um estudo com delineamento de pesquisa não experimental, tipo descritivo-exploratório, prospectivo. Para tal elaborou-se um instrumento de coleta de dados, o qual foi submetido à validação aparente e de conteúdo. A amostra foi constituída de 70 pacientes. A medida mais empregada na sala de operação foi o método passivo de aquecimento cutâneo como o uso de lençol de algodão (11,4%) e o enfaixamento dos membros inferiores (14,3%). A utilização de um método ativo de aquecimento cutâneo ocorreu uma única vez (1,4%). Os resultados evidenciados demonstraram a necessidade de implementação de intervenções eficazes para a prevenção da hipotermia e o enfermeiro tem papel importante neste contexto, uma vez que a segurança do paciente e a redução de complicações decorrentes do procedimento anestésico cirúrgico são metas do cuidado de enfermagem.

Cognitive issues in fingerprint analysis: Inter- and intra-expert consistency and the effect of a "target" comparison

Deciding whether two fingerprint marks originate from the same source requires examination and comparison of their features. Many cognitive factors play a major role in such information processing. In this paper we examined the consistency (both between- and within-experts) in the analysis of latent marks, and whether the presence of a 'target' comparison print affects this analysis. Our findings showed that the context of a comparison print affected analysis of the latent mark, possibly influencing allocation of attention, visual search, and threshold for determining a 'signal'. We also found that even without the context of the comparison print there was still a lack of consistency in analysing latent marks. Not only was this reflected by inconsistency between different experts, but the same experts at different times were inconsistent with their own analysis. However, the characterization of these inconsistencies depends on the standard and definition of what constitutes inconsistent. Furthermore, these effects were not uniform; the lack of consistency varied across fingerprints and experts. We propose solutions to mediate variability in the analysis of friction ridge skin.

Lesões de pele no intra-operatório de cirurgia cardíaca: incidência e caracterização

Neste estudo exploratório, descritivo e de coorte o objetivo principal foi verificar a incidência de pacientes submetidos à cirurgia cardíaca que desenvolveram lesões de pele no período intra-operatório, caracterizar as lesões. A coleta de dados foi realizada no Centro Cirúrgico (CC) de um hospital público de ensino, de atenção terciária à saúde, predominantemente cirúrgico, especializado em cardiologia no Município de São Paulo. A amostra do estudo foi de 182 pacientes. O estudo foi feito com um p significativo (<0,05) frente aos testes estatísticos não-paramétricos. Quanto à incidência de pacientes submetidos à cirurgia cardíaca, que desenvolveram lesões de pele em decorrência do período intra-operatório, obteve-se incidência de 20,9%. Tivemos que 19,2% das lesões apresentaram-se como Úlceras por Pressão (UP) no estágio I; 1,1% das lesões caracterizaram-se como abrasão; 1,1% feridas incisas; 0,5% laceração; 0,5% queimadura elétrica superficial e 0,5% UP no estágio II.

Growth arrest-specific gene 6 (GAS6) as an intra-hospital mortality predictor for patients in septic shock

Aim: Gas6 is known to be elevated in sepsis, correlating with the severity of infection and organ failure. We aimed to investigate the performance of Gas6 plasma levels at admission to predict the risk of mortality in a cohort of septic patients.Methods: We used prospectively collected data and plasma samples from the 'Sepsis Cohorte Romande'. Gas6 level was measured by ELISA at admission and expressed in percentage relative to its level in a pool of normal plasma.Results: Non-survivors (n = 19) presented higher Gas6 levels than survivors (n = 78; median 287% vs. 158%, IQR 182 and 119 respectively; P = 0.0003). Gas6 correlated positively with different cytokine and was the best mortality predictor, as shown by the ROC curves area (Fig. 1). In patients with septic shock (n = 67), using 249% as a cut-off value, Gas6 measurement had a specificity of 81% and a sensitivity of 68% for predicting mortality. ROC curve area was 0.76. Positive and negative predictive values were 59% and 87%, respectively.Conclusion: Thus, Gas6 plasma level at admission might be a useful tool to predict mortality in patients with septic shock. Nevertheless, independent association of Gas6 level with mortality still needs to be assessed. Although Gas6 hold promise as an early sepsis marker, its precise implication in sepsis remains to be elucidated.

Intra-arterial hepatic fotemustine for the treatment of liver metastases from uveal melanoma: experience in 101 patients.

BACKGROUND: Exclusive liver metastases occur in up to 40% of patients with uveal melanoma associated with a median survival of 2-7 months. Single agent response rates with commonly available chemotherapy are below 10%. We have investigated the use of fotemustine via direct intra-arterial hepatic (i.a.h.) administration in patients with uveal melanoma metastases. PATIENTS AND METHODS: A total of 101 patients from seven centers were treated with i.a.h. fotemustine, administered intra-arterially weekly for a 4-week induction period, and then as a maintenance treatment every 3 weeks until disease progression, unacceptable toxicity or patient refusal. RESULTS: A median of eight fotemustine infusions per patient were delivered (range 1-26). Catheter related complications occurred in 23% of patients; however, this required treatment discontinuation in only 10% of the patients. The overall response rate was 36% with a median overall survival of 15 months and a 2-year survival rate of 29%. LDH, time between diagnosis and treatment start and gender were significant predictors of survival. CONCLUSIONS: Locoregional treatment with fotemustine is well tolerated and seems to improve outcome of this poor prognosis patient population. Median survival rates are among the longest reported and one-third of the patients are still alive at 2 years.

O empreendedorismo. O perfil do empreendedor da Ilha de Santiago Cabo Verde

Este trabalho apresenta um estudo qualitativo, desenvolvido através de pesquisa exploratória, bibliográfica e de campo, feito a trezentos e noventa e nove empreendedores e empresários da Ilha de Santiago, tendo em consideração o cenário económico actual e a preocupação à volta do sector privado. Procurou-se através de pesquisa junto às empresas activas, e cujo número de pessoas ao seu serviço não ultrapassa vinte, identificar três pontos fundamentais relacionados com os empreendedores: investigar os factores que levaram as pessoas a tornarem-se empreendedores; investigar as características principais do empreendedor de sucesso; identificar as características imprescindíveis para se atingir o sucesso empresarial relacionadas com o conhecimento, competências, atitude e talento, sequenciadas por ordem de importância. Para um melhor entendimento destas questões foi utilizado um referencial teórico que aborda o empreendedorismo. A pesquisa de campo foi realizada através de utilização de questionários – entrevistas às empresas estabelecidas nesta ilha, e o método de recolha de dados foi o de entrevista directa. Os resultados obtidos mostraram que os empreendedores enfatizam a importância dos factores comportamentais no sucesso das pequenas e médias empresas e evidenciaram que os factores mais significativos e limitativos do sucesso dos empreendedores no Município da Praia, ilha de Santiago, se referem ao ambiente interno do negócio. Considerando todos estes factores e de acordo com as pesquisas desenvolvidas e analisadas, este trabalho recolheu informações específicas dos empreendedores de sucesso da ilha de Santiago e que podem ser úteis para os que almejam o sucesso empresarial e para eventuais programas de capacitação e formação empreendedora na ilha. This work presents a qualitative study developed through exploratory, bibliographic and field research to three hundred and ninety nine managers and entrepreneurs from Santiago Island, taking into consideration the present economical scenario and main concerns linked to private sector. Through a research in active enterprises and whose staff number doesn’t exceed twenty, the goal was to identify three main issues related to entrepreneurs: look into the factors that encouraged people to become entrepreneurs; examine the main characteristics of a successful entrepreneur and identify, sequenced by order of importance, the most critical characteristics related to knowledge, skills, attitude and talent, that allow entrepreneurial success achievement. For a better understanding of these questions, a theoretical approach to entrepreneurship was exploited. Field research was carried on through the use of questionnaires in enterprises located in Praia, and the data collection method was direct interviews. Results obtained showed that entrepreneurs emphasize the importance of behavioral factors in the success of small and medium enterprises and they evidenced that the most significant and restrictive factors of entrepreneurs’ success in Santiago Island are related to internal business environment. Considering these factors, and according to research developed and analyzed, the work has collected specific information of successful entrepreneurs in Santiago that can be useful for those, in the island, who seek entrepreneurial success and for eventual capacity building and entrepreneurial training programs.

Intra-Industry Trade, Multilateral Trade Integration, and Invasive Species Risk, December 2006

We analyze the linkage between protectionism and invasive species (IS) hazard in the context of two-way trade and multilateral trade integration, two major features of real-world agricultural trade. Multilateral integration includes the joint reduction of tariffs and trade costs among trading partners. Multilateral trade integration is more likely to increase damages from IS than predicted by unilateral trade opening under the classic Heckscher-Ohlin-Samuelson (HOS) framework because domestic production (the base susceptible to damages) is likely to increase with expanding export markets. A country integrating its trade with a partner characterized by relatively higher tariff and trade costs is also more likely to experience increased IS damages via expanded domestic production for the same reason. We illustrate our analytical results with a stylized model of the world wheat market.