Safety of day surgery for patients with special needs.

BACKGROUND: The objective of this study was to assess the safety and quality of day care management for dental surgery under general anaesthesia in a population with special needs and to compare the results with a control population. METHODS: A retrospective observational cohort study was performed. The study population included all patients who had day care dental surgery under general anaesthesia for one year. The primary endpoint was the rate of unscheduled admission, which was defined as the unplanned need to maintain a hospital stay on the evening of the surgical procedure. Secondary endpoints included occurrence of complications during the perioperative period (either anaesthesia or surgery related) on the day of surgery (D0) and on day 1 and satisfaction of patients or their relatives. RESULTS: Data from 138 patients (70 with special needs and 68 controls) were analysed. In both groups, patients were young (mean age 33 years ± 14 in each group). Special needs were mainly related to autism (34%), cerebral palsy (19%), intellectual disability (19%) and Down syndrome (10 %). Surgical procedures were more extensive in the control group. There was 1 unscheduled admission in the special needs group and 3 in the control group (RR 0.32, 95% CI [0.03; 3.04]). There was no difference in the rate of complications. CONCLUSION: In our cohort, day care management for dental surgery under general anaesthesia is safe and effective for patients with special needs.

Osteonecrosis of the Jaw in a Patient Presenting With Post-Transplantation Lymphoproliferative Disorder Treated With Rituximab: A Case Report.

Osteonecrosis of the jaw (ONJ) is a rare but potentially severe condition that can be induced by specific treatments. We report the case of a 69-year-old male kidney transplant recipient who presented with ONJ 5 years after transplantation. The patient presented with ulcerations of the oral mucosa related to post-transplantation lymphoproliferative disorder, which was treated with rituximab. Subsequently, ONJ developed. Although rituximab treatment cannot be firmly established as the cause of this condition, similar cases of ONJ have been reported after treatment with this monoclonal antibody. This case raises a potential link between rituximab treatment and ONJ and prompts further studies to investigate the potential impact of rituximab on bone angiogenesis.

Biomedical research in france and brazil: an analysis of significant differences and ethical issues / A pesquisa biomédica na França e no Brasil: análise de diferenças e questões éticas importantes

At first sight, Brazil and France seem pretty distant from one another, but on the map, they are not separated by the Atlantic Ocean, but by the Oyapock River, located between the state of Amapa and French Guiana (French overseas department), creating a 730 km long international border. If the distance does exist, it is very different when we finely analyze some similarities in the field of biomedical research. France is the biggest country of Western Europe and covers 1/5 of the European Union. Apart from Metropolitan France, the country contains overseas territories, remnants of its colonial past. Over the centuries, France has known several political systems, from Ancient History to the current Republic. According to Ernest Renan, the French nation is more an ideology than a reality, primarily based on "the desire of living together and the wish to highlight our legacy"(1). The tragic attacks of November 2015 and all the reactions over the next days illustrate this. Brazil, discovered by the Portuguese explorer Pedro Alvares during the 16th century, is established on half of South America and is about 16 times bigger than France. This giant does not look to the past but is always moving forward. The concept of nation is really strong throughout the country, as shown by the enthusiasm of soccer players wearing the national auriverde jersey and the National Team supporters. Furthermore, they possess a strong culture of entrepreneurship defined by Stefan Zweig as the legacy of the early colonial era(2). Biomedical research is a human activity which aims to give expected solutions, and sometimes unexpected ones too, to a major and insoluble problem at a given time. This research is based on knowledge and will question it with a scientific approach, spread between what is known today and what will be known tomorrow. Ideally, the point of getting new knowledge is to improve a group of people or the entire population's health. The researcher is a creator of knowledge but is also a pioneer, what imposes an ethical responsibility. For the last 20 years, the way how biomedical research is led has changed with the definition of "good clinical practice". The globalization of the biomedical research is explained by the fact that we have made many improvements so far but we always need more and more patients to prove the superiority of a treatment to another. Many patents about "blockbusters treatments" expire soon, so the pharmaceutical industry speeds up to discover new ones to replace them, which explains the multiplication of clinical trials. The pharmaceutical industry and the emerging markets share common interests, which lead them to work together, increasing the phenomenon of globalization. The good clinical practice refers to standards shared by Europe, North America, Japan and Australia, about international ethical and scientific quality defining the conception, the conduct, the registration and the presentation of data during trials involving human beings. Emerging markets are not obliged to follow these standards, what implies that part of the modalities can be dissimulated. The International Conference on Harmonisation(3) has elaborated recommendations related to the research and the development of new medications which clearly aim to limit human, animal and material resources to decrease the time for the trials. The Brazilian health law respects these international standards and is the most advanced in Latin America along with the Argentinian and Mexican systems. In addition, many Brazilian doctors have studied overseas and respect these rules. However, if consensuses on theoretical notions about bioethics exist, there are still differences on the way research policies are applied. If respecting all international standards about ethics (Declaration of Helsinki 1964, Belmont Report 1978, International Ethical Guidelines for Biomedical Research Involving Human Subjects and the Resolution of the National Health Council CNS 196/96) is required by every Brazilian scientific review and the National Commission for Ethics in Research, it is surprising that this resolution, which aimed to protect the patients, the institutions and the country, has been recently (12/12/12) dismissed(4). It is easy to acknowledge a whole scientific community of a country a dignity of principle, but it is harder to define the modalities of its implementation on the border of life (birth and death) when these nations have fundamental cultural, economical, historical and societal differences. The following examples illustrate the various ethical challenges. Geopolitics Brazil has many advantages favoring the development of biomedical research on its territory. Its situation in the Southern hemisphere with inverted seasons compared to Europe allows trials all along the year. Its proximity with the US and Canadian pharmaceutical companies, compared to Asia, is more convenient for logistics. The incidence of many diseases is pretty similar to Europe and North America with a high incidence of cardiovascular diseases (42% of men aged 65 or older), type 2 diabetes (6.9 million adults), breast and prostate cancer. The Agência Nacional de Vigilância Sanitária ­ ANVISA (Brazil's National Health Surveillance Agency) registers every clinical trial, and shows that breast cancer and type 2 diabetes are the two most studied pathologies with respectively 20.5% and 26%. Those data highlight the problem of neglected or "orphan" diseases for pharmaceutical companies that have a local impact on mortality or economy, such as dengue fever or Chagas disease(5). Economy Brazil has had a 4% continuing economic growth for the last ten years. This economic development has been seriously reduced since 2011. Its prime mover is its domestic consumption ­ with 200 million inhabitants ­ coupled with advantages of its huge vegetal and mineral resources. Nevertheless, Brazil is ranked 120 out of 189 by the World Bank for the ease of entrepreneurship. In biomedical research, countries are rated regarding their attractiveness from 1 to 10. Brazil is scored 5.26 ­ just behind China(6). According to Goldman Sachs' economist Jim O'Neill(7), Brazil is one of the five BRICS countries with Russia, India, China and South Africa. Those countries represent the five major emerging national economies. Their markets should grow until the sum of their GDP reaches the one of the G6 countries around 2040 (Japan, USA, UK, France, Germany, Italy). This notion helps the investigators/investors to find the countries which offer the best opportunities. Brazil is definitely one of those; its Human Development Index (HDI), a composite score of life expectancy, education, and income per capita indicators is 79/187 versus 20/187 for France. This index has been created to highlight that people and their abilities should be the main indicators used to evaluate the potential of growth for a country and not only economic criteria. It can be used to question political choices. The reasons why Brazil is often solicited for clinical trials are explained by the following elements. An important growth of its pharmaceutical market over the last years, a highly urbanized population with an easy access to medications due to a generous government health program, important infrastructures in large metropolises (São Paulo, Rio de Janeiro) gathering the major part of the resources, a high relevance in clinical expertise, an important part of the population is treatment naive, which seduces the pharmaceutical industry, reasonable costs for research with a low-constraining regulation, an eased patient recruitment, and a surprising transdisciplinarity(8). Culture The French "exception culturelle" (cultural exception) designates past or actual French specificities compared to other countries in the cultural field. This definition implies pride, pretentiousness and the feeling that French culture is superior to others. This cultural diversity is closely related to the organization of the society. In France, national collective solidarity is highly developed to facilitate the access to the health system. Some other societies, like Brazil, allow more importance to the familial or local communities and a low national investment in the health system. In this way, the decision for a woman to participate in a clinical trial will be made by a man of her family, either her husband, her father or her brother and not by herself. Those cultural differences between our two countries explain why clinical research on the embryo is forbidden in France and allowed in Brazil since the Biosecurity law (2005). On the other hand, abortion is forbidden in Brazil and is allowed in France. The excess of some investigators associated with the pressure from clinical trials leaders led those "body hunters" to get established in developing markets, losing the perspective of the final objective of any biomedical research, which is supposed to be the improvement of the conditions of life for the whole human community. The complexity of the actual context for biomedical research ­ multiple financial sources, multicenter trials, variable regulatory constraints, risky trials ­ must alert permanently the researcher so he will be able to apply an ethics of responsibilities more than convictions, as theorized by German sociologist Weber(9). Thanks to Pierre Keribin for the translation of the editorial

À primeira vista, Brasil e França parecem bem distantes um do outro, mas no mapa, eles não estão separados pelo Oceano Atlântico, mas sim pelo Rio Oiapoque, localizado entre o estado do Amapá e a Guiana Francesa (território ultramarino francês), criando uma fronteira internacional de 730 km de distância. Se a distância de fato existe, torna-se bem diferente quando analisamos algumas similaridades no campo da pesquisa biomédica. A França é o maior país da Europa Ocidental e cobre 1/5 da União Européia. Além da França Metropolitana, o país possui territórios ultramarinos, remanescentes de seu passado colonial. Ao longo dos séculos a França conheceu vários sistemas políticos, desde a História Antiga até a República atual. De acordo com Ernest Renan, a nação francesa é mais uma ideologia do que uma realidade, primordialmente baseada no "desejo de viver juntos e no desejo de ressaltar o nosso legado"(1). Os trágicos atentados de novembro 2015 e todas as reações ao longo dos dias que se

Gingival metastasis of a bronchogenic adenocarcinoma: report of a case.

We report the case of a 64-year-old patient suffering from a multiple metastatic bronchial adenocarcinoma, referred to our department for a gingival tumefaction. The diagnostic assumptions considered were those of a pyogenic granuloma, of a primary gingival carcinoma, or of a metastasis of the bronchial tumor. An excisional biopsy was carried out and the histopathologic examination confirmed the latter diagnosis. No complementary care was performed because of the multiple localizations and unfavorable prognosis. If metastases of pulmonary cancers represent the majority of gingival metastases, those of bronchial adenocarcinoma are very rare. Metastatic process could be facilitated by Batson's plexus, through the periodontal inflammation or the direct bronchotracheal way. The main clinical diagnostic difficulty is the distinction between benign lesion and malignant lesion, and between primary lesion and metastasis. Even if gingival metastases are rare, their semiological value incites the histopathologic examination of any presumedly benign tumor of the gingiva.