Chatbots in Cancer Applications, Advantages and Disadvantages: All that Glitters Is Not Gold.

The emergence of digitalization and artificial intelligence has had a profound impact on society, especially in the field of medicine. Digital health is now a reality, with an increasing number of people using chatbots for prognostic or diagnostic purposes, therapeutic planning, and monitoring, as well as for nutritional and mental health support. Initially designed for various purposes, chatbots have demonstrated significant advantages in the medical field, as indicated by multiple sources. However, there are conflicting views in the current literature, with some sources highlighting their drawbacks and limitations, particularly in their use in oncology. This state-of-the-art review article seeks to present both the benefits and the drawbacks of chatbots in the context of medicine and cancer, while also addressing the challenges in their implementation, offering expert insights on the subject.

Breaking Bad News During the COVID-19 Pandemic: A Systematic Review of the Literature.

The aim of the present review was to extend research by reviewing international research regarding the communication between oncologists and oncology patients and the communication of bad news to oncology patients during the COVID-19 pandemic. Following the PRISMA guidelines a review of the literature was performed by searching PubMed, Scopus, and EMBASE bibliographic databases from inception to October 10, 2022. The search was limited to articles written in English. Two reviewers independently completed title and abstract, full-text screening, and data extraction. A total of five studies were deemed eligible for this systematic review. A narrative synthesis was undertaken. Of these five articles, three referred to the communication of bad news to patients by medical oncologists during the COVID-19 pandemic, whereas the remaining two referred to the transmission of bad news to patients by surgeons during the pandemic. The COVID-19 pandemic and the social distancing measures imposed caused radical changes in the forms of communication in medical environments. The challenges faced by the oncologist in breaking bad news to cancer patients are highlighted in this systematic review, and the need for physician preparation prior to communication with the patient is emphasized. Overall, new studies are needed on the effects of distance communication on both health professionals and patients. New studies are also needed that would explore the perceptions of physicians and patients in Greece.

Intake and adequacy of the vegan diet. A systematic review of the evidence.

BACKGROUND: Vegan diets, where animal- and all their by-products are excluded from the diet, have gained popularity, especially in the last decade. However, the evaluation of this type of diet has not been well addressed in the scientific literature. This study aimed to investigate the adequacy of vegan diets in European populations and of their macro- and micronutrient intakes compared to World Health Organization recommendations. METHODS: A systematic search in PubMed, Web of Science, IBSS, Cochrane library and Google Scholar was conducted and 48 studies (12 cohorts and 36 cross-sectional) were included. RESULTS: Regarding macronutrients, vegan diets are lower in protein intake compared with all other diet types. Veganism is also associated with low intake of vitamins B2, Niacin (B3), B12, D, iodine, zinc, calcium, potassium, selenium. Vitamin B12 intake among vegans is significantly lower (0.24-0.49 µg, recommendations are 2.4 µg) and calcium intake in the majority of vegans was below recommendations (750 mg/d). No significant differences in fat intake were observed. Vegan diets are not related to deficiencies in vitamins A, B1, Β6, C, E, iron, phosphorus, magnesium, copper and folate and have a low glycemic load. CONCLUSIONS: Following a vegan diet may result in deficiencies in micronutrients (vitamin B12, zinc, calcium and selenium) which should not be disregarded. However, low micro- and macronutrient intakes are not always associated with health impairments. Individuals who consume a vegan diet should be aware of the risk of potential dietary deficiencies.