Myocarditis and COVID-19 mRNA vaccines: a mechanistic hypothesis involving dsRNA.

While tolerance to COVID-19 vaccination is considered satisfactory, a phenomenon of myocarditis, although rare, is becoming a safety concern in mRNA COVID-19 vaccination. The presence of low residual levels of double-strand RNA (dsRNA) has been reported in mRNA COVID-19 vaccine preparations. dsRNA is a known inducer of immune-inflammatory reactions. dsRNA present in vaccine nanoparticles may be suspected to be at the origin of the still unexplained cases of myocarditis.

Should Adjuvant Radiation Therapy Be Systematically Proposed for Male Breast Cancer? A Systematic Review.

BACKGROUND: Guidelines for radiotherapy in male breast cancer (MBC) are lacking. Some extrapolate the results from female breast cancer trials, while others advocate systematic adjuvant irradiation. We evaluated clinical practices and outcomes with respect to radiation therapy in MBC treated with locoregional irradiation in the adjuvant setting using a systematic literature review. MATERIAL AND METHODS: We included studies with data about adjuvant radiotherapy published between 1984 and 2017 and including at least 40 patients. RESULTS: We found 29 retrospective series, 10,065 men were diagnosed with breast cancer; 3-100% (mean=54%) received adjuvant radiotherapy. Tumor size and nodal involvement were the strongest prognostic factors. Approximatively half of all cases had nodal metastases. Radiation therapy improved locoregional control in six series, overall survival in three and distant metastasis-free survival in one. CONCLUSION: MBC is diagnosed at a highly advanced stage and may be linked with poorer outcomes. Adjuvant radiation therapy must, at least, be proposed to men with positive nodes. Despite the large number of cases gathered here, arguments for radiotherapy in other prognostic subgroups (especially in pN0) may exist but are not well supported.

[Radiation therapy in inflammatory breast cancer]. / Radiothérapie des cancers du sein inflammatoires.

BACKGROUND: Inflammatory breast cancer accounts for 1-5% of all breast cancers. It is associated with a poor prognosis, because of an increased risk to develop metastases in comparison with all breast malignancies. The treatment is multimodal. We have evaluated the role of radiotherapy: indications, techniques and impact for local control and overall survival. METHOD: The series of the literature with more than 40 patients irradiated for inflammatory breast cancer published since 1995 were analyzed. RESULTS: Chemotherapy was always delivered first. Adjuvant radiotherapy was associated with local control and overall survival at 10 years of 63-92% and 51-64 respectively. Without surgery, local control was 65% and overal survival 38% at 10years. Results of concomitant radiochemotherapy were reported: the studies were heterogenous. Modalities of radiotherapy were detailed with respect to dose and fractionation, target-volumes and technical considerations (including bolus). CONCLUSION: The multimodal strategy comprises systematically radiotherapy with an evaluation of tumor response to maximise resecability.

[Integrating patient education in your oncology practice]. / Éducation thérapeutique du patient, concepts et mise en œuvre.

BACKGROUND: Patient education is the process by which health professionals impart information to patients and their caregivers that will alter their health behaviors; improve their health status to better manage their lives with a chronic disease. Patient education implies a profound paradigm shift in the conception of care among health professionals, and should result in structural care changes. Patient education has been promoted by the French Health system for 30years, including in the 2009 HPST law and Cancer Plan 2014-2019. A patient education program was designed in our hospital for breast cancer patients. MATERIAL AND METHODS: A multidisciplinary and transversal team of health professionals and resource patients was trained before grant application for funding of the program by the regional health care agency. Management of the project required that a functional unit be built for recording of all patient education related activities. A customized patient education program process was built under the leadership of a coordinator and several patient education project managers during bimonthly meetings, using an accurate timeline and a communication strategy to ensure full institutional support and team engagement. RESULTS: The grant was prepared in four months and the program started within the next four months with the aim to include 120 patients during year 1. The program includes a diagnosis of patient abilities and well-being resources, followed by collective and individual workshops undertaken in 4months for each patient. DISCUSSION: Patient education is positively evaluated by all participants and may contribute to better health care management in the long term but the financial and human resources allocated to such programs currently underestimate the needs. Sustainability of patient education programs requires that specific tools and more commitment be developed to support health care professionals and to promote patient coping and empowerment in the long term.