1,721,355 research outputs found
Investigational drugs for head and neck cancer
No full textIntroduction: In the treatment of advanced/metastatic head and neck cancer ( HNC), resistance to chemotherapy and to anti-EGFR agents remains a major issue, and new molecular drugs are eagerly awaited. Over the last decade, knowledge of the genetic landscape of HNC has rapidly grown. However, no tailored therapeutic intervention targeting HNC molecular abnormalities is currently available outside from clinical trials. Areas covered: In this review, the authors analyze new drugs in the HNC setting which have been investigated in recently published trials or are currently being investigated. The article excludes strategies directed towards the EGFR pathway and antivascular agents. Expert opinion: Agents acting on the PI3K axis have a strong biological rationale and show the preliminary signs of activity, in particular when combined with other agents. There is limited clinical data of the other discussed pathways; the CMET/HGF pathway as a possible modulator of anti-EGFR drug sensitivity and agents directed towards MEK, WEE-1, NOTCH represent new interesting approaches to HNC. It is of the utmost importance to try and incorporate the molecular dissection of the tumor profiles in clinical trials with such agents. Moreover, the mutational status of other cross-talking pathways should be assessed, since potential resistance mechanisms can be recognized and possibly overcome by a careful selection of patients and combination regimens. Immunotherapy represents a growing field in HNC and its wider application will impact on future therapeutic strategies, including the association with chemotherapy, targeted agents and radiation
The Benefit of a Multidisciplinary Approach to the Patient Treated with (Chemo) Radiation for Head and Neck Cancer
No full textIn the past two decades, multidisciplinary care has emerged as new way to manage cancer given the need to gather together specific areas of expertise and to discuss the variety of treatment approaches available for each patient. Of all the cancer subtypes, head and neck cancer might be considered one of the most valid areas, from an oncological point of view, for a multidisciplinary approach to be applied. Head and Neck Cancer is a complex disease area due to its varied histology and subsites, its numerous feasible treatments, its multiple typical comorbidities, and its treatment-induced toxicities whose management requires the simultaneous involvement of several professionals as part of the same health care team. However, the benefits of a multidisciplinary team approach in this particular area have not yet been properly documented in terms of survival outcomes. Moreover, there are some concerns and the limitations of a multidisciplinary team approach for Head and Neck Cancer patients are still open to question: cost-efficiency, the implications from a medical law perspective, the level of expertise required and the timing of each intervention (fixed or as required; before, during or after oncological treatment), and the role of the leader with other interested specialists to optimize all multidisciplinary care mechanisms
Prognostic and predictive factors in recurrent and/or metastatic head and neck squamous cell carcinoma: A review of the literature
No full textBossi, P., Alfieri, S., Strojan, P., Takes, R.P., López, F., Mäkitie, A., Saba, N.F., Rodrigo, J.P., Bradford, C., Suarez, C., Zafereo, M., Forastiere, A.A., Vermorken, J.B., Quer, M., Sanabria, A., Simo, R., de Bree, R., Rinaldo, A., Ferlito, A
Gli interventi del passato e le nuove proposte di restauro per la balaustrata del Santuario di S. Maria della Steccata (Parma)
No full textThe Case Volume Issue in Head and Neck Oncology
No full textIn the past few years, several evidences reported better outcomes, in terms of reduced toxicities and longer survival, for head and neck cancer (HNC) patients when “regionalized,” namely if they are managed at “high-volume” cancer referral centers (CRC). The benefit of case volume has been demonstrated in HNC patients primarily treated with surgery and in those receiving curative radiotherapy and chemotherapy. Many factors could explain these positive results: organization, facilities, processes of care, quality assurance programs, professional expertise, technology, and patient referral bias. In other words, the “high volume” could be linked both to all hospital-related volume and to the expertise of each involved professional figure (e.g., surgeon, radiation oncologist, medical oncologist, etc.). In this context, it is still debatable whether there is a need to understand which one of these factors is more able to influence the final outcomes of HNC patients. Considering the complexity and heterogeneity of HNC, all of these aspects are likely to impact and plot each other. However, there is no consensus regarding the criteria and the cut-off used to define as “high” the case volume. Moreover, some limitations or biases of the regionalization process have to be highlighted: (1) personal and financial discomfort of patients, their caregivers, and families; (2) a frequent referral of the healthiest or youngest patients to CRC could change the survival outcomes; (3) potential higher difficulties for colleagues working outside of CRC in the emergency. Nevertheless, the case volume represents one of the factors impacting on the quality of the treatment itself, in terms of reduced toxicity and better treatment outcome. Therefore, it should be considered as a stratifying factor in randomized controlled trials for HNC patients
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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