Monitoring Changes in Oxygen Muscle during Exercise with High-Flow Nasal Cannula Using Wearable NIRS Biosensors.

Exercise increases the cost of breathing (COB) due to increased lung ventilation (V˙E), inducing respiratory muscles deoxygenation (∇SmO2), while the increase in workload implies ∇SmO2 in locomotor muscles. This phenomenon has been proposed as a leading cause of exercise intolerance, especially in clinical contexts. The use of high-flow nasal cannula (HFNC) during exercise routines in rehabilitation programs has gained significant interest because it is proposed as a therapeutic intervention for reducing symptoms associated with exercise intolerance, such as fatigue and dyspnea, assuming that HFNC could reduce exercise-induced ∇SmO2. SmO2 can be detected using optical wearable devices provided by near-infrared spectroscopy (NIRS) technology, which measures the changes in the amount of oxygen bound to chromophores (e.g., hemoglobin, myoglobin, cytochrome oxidase) at the target tissue level. We tested in a study with a cross-over design whether the muscular desaturation of m.vastus lateralis and m.intercostales during a high-intensity constant-load exercise can be reduced when it was supported with HFNC in non-physically active adults. Eighteen participants (nine women; age: 22 ± 2 years, weight: 65.1 ± 11.2 kg, height: 173.0 ± 5.8 cm, BMI: 21.6 ± 2.8 kg·m-2) were evaluated in a cycle ergometer (15 min, 70% maximum watts achieved in ergospirometry (V˙O2-peak)) breathing spontaneously (control, CTRL) or with HFNC support (HFNC; 50 L·min-1, fiO2: 21%, 30 °C), separated by seven days in randomized order. Two-way ANOVA tests analyzed the ∇SmO2 (m.intercostales and m.vastus lateralis), and changes in V˙E and ∇SmO2·V˙E-1. Dyspnea, leg fatigue, and effort level (RPE) were compared between trials by the Wilcoxon matched-paired signed rank test. We found that the interaction of factors (trial × exercise-time) was significant in ∇SmO2-m.intercostales, V˙E, and (∇SmO2-m.intercostales)/V˙E (p < 0.05, all) but not in ∇SmO2-m.vastus lateralis. ∇SmO2-m.intercostales was more pronounced in CTRL during exercise since 5' (p < 0.05). Hyperventilation was higher in CTRL since 10' (p < 0.05). The ∇SmO2·V˙E-1 decreased during exercise, being lowest in CTRL since 5'. Lower dyspnea was reported in HFNC, with no differences in leg fatigue and RPE. We concluded that wearable optical biosensors documented the beneficial effect of HFNC in COB due to lower respiratory ∇SmO2 induced by exercise. We suggest incorporating NIRS devices in rehabilitation programs to monitor physiological changes that can support the clinical impact of the therapeutic intervention implemented.

Contouring variation affects estimates of normal tissue complication probability for breast fibrosis after radiotherapy.

BACKGROUND: Normal tissue complication probability (NTCP) models can be useful to estimate the risk of fibrosis after breast-conserving surgery (BCS) and radiotherapy (RT) to the breast. However, they are subject to uncertainties. We present the impact of contouring variation on the prediction of fibrosis. MATERIALS AND METHODS: 280 breast cancer patients treated BCS-RT were included. Nine Clinical Target Volume (CTV) contours were created for each patient: i) CTV_crop (reference), cropped 5 mm from the skin and ii) CTV_skin, uncropped and including the skin, iii) segmenting the 95% isodose (Iso95%) and iv) 3 different auto-contouring atlases generating uncropped and cropped contours (Atlas_skin/Atlas_crop). To illustrate the impact of contour variation on NTCP estimates, we applied two equations predicting fibrosis grade ≥ 2 at 5 years, based on Lyman-Kutcher-Burman (LKB) and Relative Seriality (RS) models, respectively, to each contour. Differences were evaluated using repeated-measures ANOVA. For completeness, the association between observed fibrosis events and NTCP estimates was also evaluated using logistic regression. RESULTS: There were minimal differences between contours when the same contouring approach was followed (cropped and uncropped). CTV_skin and Atlas_skin contours had lower NTCP estimates (-3.92%, IQR 4.00, p < 0.05) compared to CTV_crop. No significant difference was observed for Atlas_crop and Iso95% contours compared to CTV_crop. For the whole cohort, NTCP estimates varied between 5.3% and 49.5% (LKB) or 2.2% and 49.6% (RS) depending on the choice of contours. NTCP estimates for individual patients varied by up to a factor of 4. Estimates from "skin" contours showed higher agreement with observed events. CONCLUSION: Contour variations can lead to significantly different NTCP estimates for breast fibrosis, highlighting the importance of standardising breast contours before developing and/or applying NTCP models.

Comparison of prone and supine positioning for breast cancer radiotherapy using REQUITE data: dosimetry, acute and two years physician and patient-reported outcomes.

OBJECTIVE: Most patients receive whole breast radiotherapy in a supine position. However, two randomised trials showed lower acute toxicity in prone position. Furthermore, in most patients, prone positioning reduced doses to the organs at risk. To confirm these findings, we compared toxicity outcomes, photographic assessment, and dosimetry between both positions using REQUITE data. METHODS: REQUITE is an international multi-centre prospective observational study that recruited 2069 breast cancer patients receiving radiotherapy. Data on toxicity, health-related quality of life (HRQoL), and dosimetry were collected, as well as a photographic assessment. A matched case control analysis compared patients treated prone (n = 268) versus supine (n = 493). Exact matching was performed for the use of intensity-modulated radiotherapy, boost, lymph node irradiation, chemotherapy and fractionation, and the nearest neighbour for breast volume. Primary endpoints were dermatitis at the end of radiotherapy, and atrophy and cosmetic outcome by photographic assessment at two years. RESULTS: At the last treatment fraction, there was no significant difference in dermatitis (p = .28) or any HRQoL domain, but prone positioning increased the risk of breast oedema (p < .001). At 2 years, patients treated in prone position had less atrophy (p = .01), and higher body image (p < .001), and social functioning (p < .001) scores. The photographic assessment showed no difference in cosmesis at 2 years (p = .22). In prone position, mean heart dose (MHD) was significantly lower for left-sided patients (1.29 Gy vs 2.10 Gy, p < .001) and ipsilateral mean lung dose (MLD) was significantly lower for all patients (2.77 Gy vs 5.89 Gy, p < .001). CONCLUSIONS: Prone radiotherapy showed lower MLD and MHD compared to supine position, although the risk of developing breast oedema during radiotherapy was higher. At 2 years the photographic assessment showed no difference in the cosmetic outcome, but less atrophy was seen in prone-treated patients and this seems to have a positive influence on the HRQoL domain of body image.

Aproximación a la Deontología en Medicina Legal en el contexto cubano

Se realizó una revisión bibliográfica con el objetivo de exponer cuestiones deontológicas inherentes a la práctica de la Medicina Legal y el estado de la temática en el contexto nacional. Se abordan los principales conflictos éticos derivados de la práctica pericial, las recomendaciones para las actuaciones de los peritos, el desarrollo de la especialidad en el país y la situación actual respecto a las normativas deontológicas. La escuela cubana de Medicina Legal asienta su práctica en las normas jurídicas y éticas del país, con un fuerte compromiso humanista. Se concluye que, las particularidades propias de la actividad pericial, demandan la creación de un código deontológico propio.

A bibliographical review was carried out with the objective of exposing deontological issues inherent to the practice of Legal Medicine and the state of the issue in the national context. The main ethical conflicts derived from the expert practice, the recommendations for the actions of the experts, the development of the specialty in the country and the current situation regarding the deontological regulations. The Cuban School of Legal Medicine established its practice in the legal and ethical norms of the country, with a strong humanist commitment. It is concluded that the particularities of expert activity, demand the creation of its own code of ethics.

(Pre)treatment risk factors for late fatigue and fatigue trajectories following radiotherapy for breast cancer.

Fatigue is common in breast-cancer survivors. Our study assessed fatigue longitudinally in breast cancer patients receiving adjuvant radiotherapy (RT) and aimed to identify risk factors associated with long-term fatigue and underlying fatigue trajectories. Fatigue was measured in a prospective multicenter cohort (REQUITE) using the Multidimensional Fatigue Inventory (MFI-20) and analyzed using mixed models. Multivariable logistic models identified factors associated with fatigue dimensions at 2 years post-RT and latent class growth analysis identified individual fatigue trajectories. A total of 1443, 1302, 1203 and 1098 patients completed the MFI-20 at baseline, end of RT, after 1 and 2 years. Overall, levels of fatigue significantly increased from baseline to end of RT for all fatigue dimensions (P < .05) and returned to baseline levels after 2 years. A quarter of patients were assigned to latent trajectory high (23.7%) and moderate (24.8%) fatigue classes, while 46.3% and 5.2% to the low and decreasing fatigue classes, respectively. Factors associated with multiple fatigue dimensions at 2 years include age, BMI, global health status, insomnia, pain, dyspnea and depression. Fatigue present at baseline was consistently associated with all five MFI-20 fatigue dimensions (ORGeneralFatigue = 3.81, P < .001). From latent trajectory analysis, patients with a combination of factors such as pain, insomnia, depression, younger age and endocrine therapy had a particularly high risk of developing early and persistent high fatigue years after treatment. Our results confirmed the multidimensional nature of fatigue and will help clinicians identify breast cancer patients at higher risk of having persistent/late fatigue so that tailored interventions can be delivered.

Genome-wide association study of treatment-related toxicity two years following radiotherapy for breast cancer.

BACKGROUND AND PURPOSE: Up to a quarter of breast cancer patients treated by surgery and radiotherapy experience clinically significant toxicity. If patients at high risk of adverse effects could be identified at diagnosis, their treatment could be tailored accordingly. This study was designed to identify common single nucleotide polymorphisms (SNPs) associated with toxicity two years following whole breast radiotherapy. MATERIALS AND METHODS: A genome-wide association study (GWAS) was performed in 1,640 breast cancer patients with complete SNP, clinical, treatment and toxicity data, recruited across 18 European and US centres into the prospective REQUITE cohort study. Toxicity data (CTCAE v4.0) were collected at baseline, end of radiotherapy, and annual follow-up. A total of 7,097,340 SNPs were tested for association with the residuals of toxicity endpoints, adjusted for clinical, treatment co-variates and population substructure. RESULTS: Quantile-quantile plots showed more associations with toxicity above the p < 5 × 10-5 level than expected by chance. Eight SNPs reached genome-wide significance. Nipple retraction grade ≥ 2 was associated with the rs188287402 variant (p = 2.80 × 10-8), breast oedema grade ≥ 2 with rs12657177 (p = 1.12 × 10-10), rs75912034 (p = 1.12 × 10-10), rs145328458 (p = 1.06 × 10-9) and rs61966612 (p = 1.23 × 10-9), induration grade ≥ 2 with rs77311050 (p = 2.54 × 10-8) and rs34063419 (p = 1.21 × 10-8), and arm lymphoedema grade ≥ 1 with rs643644 (p = 3.54 × 10-8). Heritability estimates across significant endpoints ranged from 25% to 39%. Our study did not replicate previously reported SNPs associated with breast radiation toxicity at the pre-specified significance level. CONCLUSIONS: This GWAS for long-term breast radiation toxicity provides further evidence for significant association of common SNPs with distinct toxicity endpoints.

Treatment time and circadian genotype interact to influence radiotherapy side-effects. A prospective European validation study using the REQUITE cohort.

BACKGROUND: Circadian rhythm impacts broad biological processes, including response to cancer treatment. Evidence conflicts on whether treatment time affects risk of radiotherapy side-effects, likely because of differing time analyses and target tissues. We previously showed interactive effects of time and genotypes of circadian genes on late toxicity after breast radiotherapy and aimed to validate those results in a multi-centre cohort. METHODS: Clinical and genotype data from 1690 REQUITE breast cancer patients were used with erythema (acute; n=340) and breast atrophy (two years post-radiotherapy; n=514) as primary endpoints. Local datetimes per fraction were converted into solar times as predictors. Genetic chronotype markers were included in logistic regressions to identify primary endpoint predictors. FINDINGS: Significant predictors for erythema included BMI, radiation dose and PER3 genotype (OR 1.27(95%CI 1.03-1.56); P < 0.03). Effect of treatment time effect on acute toxicity was inconclusive, with no interaction between time and genotype. For late toxicity (breast atrophy), predictors included BMI, radiation dose, surgery type, treatment time and SNPs in CLOCK (OR 0.62 (95%CI 0.4-0.9); P < 0.01), PER3 (OR 0.65 (95%CI 0.44-0.97); P < 0.04) and RASD1 (OR 0.56 (95%CI 0.35-0.89); P < 0.02). There was a statistically significant interaction between time and genotypes of circadian rhythm genes (CLOCK OR 1.13 (95%CI 1.03-1.23), P < 0.01; PER3 OR 1.1 (95%CI 1.01-1.2), P < 0.04; RASD1 OR 1.15 (95%CI 1.04-1.28), P < 0.008), with peak time for toxicity determined by genotype. INTERPRETATION: Late atrophy can be mitigated by selecting optimal treatment time according to circadian genotypes (e.g. treat PER3 rs2087947C/C genotypes in mornings; T/T in afternoons). We predict triple-homozygous patients (14%) reduce chance of atrophy from 70% to 33% by treating in mornings as opposed to mid-afternoon. Future clinical trials could stratify patients treated at optimal times compared to those scheduled normally. FUNDING: EU-FP7.

Development and Optimization of a Machine-Learning Prediction Model for Acute Desquamation After Breast Radiation Therapy in the Multicenter REQUITE Cohort.

Purpose: Some patients with breast cancer treated by surgery and radiation therapy experience clinically significant toxicity, which may adversely affect cosmesis and quality of life. There is a paucity of validated clinical prediction models for radiation toxicity. We used machine learning (ML) algorithms to develop and optimise a clinical prediction model for acute breast desquamation after whole breast external beam radiation therapy in the prospective multicenter REQUITE cohort study. Methods and Materials: Using demographic and treatment-related features (m = 122) from patients (n = 2058) at 26 centers, we trained 8 ML algorithms with 10-fold cross-validation in a 50:50 random-split data set with class stratification to predict acute breast desquamation. Based on performance in the validation data set, the logistic model tree, random forest, and naïve Bayes models were taken forward to cost-sensitive learning optimisation. Results: One hundred and ninety-two patients experienced acute desquamation. Resampling and cost-sensitive learning optimisation facilitated an improvement in classification performance. Based on maximising sensitivity (true positives), the "hero" model was the cost-sensitive random forest algorithm with a false-negative: false-positive misclassification penalty of 90:1 containing m = 114 predictive features. Model sensitivity and specificity were 0.77 and 0.66, respectively, with an area under the curve of 0.77 in the validation cohort. Conclusions: ML algorithms with resampling and cost-sensitive learning generated clinically valid prediction models for acute desquamation using patient demographic and treatment features. Further external validation and inclusion of genomic markers in ML prediction models are worthwhile, to identify patients at increased risk of toxicity who may benefit from supportive intervention or even a change in treatment plan.

Maltrato financiero a los adultos mayores. Policlínico "Carlos Manuel Portuondo", La Habana / Financial abuse of the elderly. "Carlos Manuel Portuondo" Polyclinic, Havana

Introducción: El envejecimiento poblacional impone complejos retos a la familia cubana. Uno de ellos es el maltrato financiero a los adultos mayores, tema insuficientemente abordado. Objetivos: Determinar la presencia de maltrato financiero en los adultos mayores, así como sus características. Material y Métodos: Se llevó a cabo un estudio descriptivo transversal que incluyó a 175 adultos mayores de 60 años del policlínico Carlos Manuel Portuondo, entre enero y diciembre de 2018. Resultados: Se identificó maltrato financiero en 53.1 por ciento de los adultos mayores. Entre estos, predominó el sexo femenino, las edades entre 70 y 79 años, el padecer al menos una enfermedad crónica no transmisible, los viudos y jubilados. Las principales manifestaciones de maltrato reportadas fueron los préstamos sin devolución, las compras no autorizadas, negación de acceso al dinero propio y la presión para realizar trámites legales. Fueron los hijos los señalados como maltratadores con más frecuencia. Imperó además el sexo femenino, las edades entre 40 y 59 años, el nivel secundario de escolarización, los divorciados, las amas de casa. La mayoría tenía más de una persona a su cargo, no recibe ayuda económica externa y refirió antecedentes de atención por Salud Mental, mayormente debido a trastornos depresivo-ansiosos. Conclusiones: Se identificó la presencia de maltrato financiero en las personas mayores estudiadas, sus características, así como las de los presuntos maltratadores. Esta forma de violencia, a pesar de ser una de las menos abordadas, afecta a la población anciana y puede constituir un problema de salud(AU)

Introduction: Population aging imposes complex challenges to the Cuban family. One of them is financial abuse of the elderly, an issue that has been insufficiently addressed. Objectives: To determine the presence of financial abuse of the elderly as well as its characteristics. Material and Methods: A cross-sectional descriptive study that included 175 adults older than 60 years attended at Carlos Manuel Portuondo polyclinic was carried out between January and December 2018. Results: Financial abuse was identified in 53.1percent of the elderly. Female sex, ages between 70 and 79 years, having at least one chronic non-communicable disease, widows and retirees predominated among them. The main manifestations of mistreatment reported were loans without refund, unauthorized purchases, denial of access to their own money and pressure to perform legal proceedings. The progenies were identified as the most frequent abusers. There was a prevalence of the female sex, ages between 40 and 59 years old, secondary level of education, divorced people, and housewives. Most of them had more than one person under their care, received no external financial help and reported a history of mental health care mainly due to depressive/anxious disorders. Conclusions: Financial abuse was identified in the elderly studied. This form of violence, despite being one of the least addressed, affects the elderly population and constitutes a health problem(AU)

In Vivo High Plasticity of Multi-Drug Resistant ST258 Klebsiella pneumoniae.

Carbapenemase production in Enterobacterales clinical isolates is a global threat. Multi-drug resistant Klebsiella pneumoniae harboring carbapenemases are a major concern among the hospital settings in Latin America. Aim: The aim of this study was to analyze the genetic relatedness between three isolates of K. pneumoniae recovered from one patient in the same bacteriological round on the same day, which exhibited different susceptibility profiles to carbapenems (CP) and to colistin (Col). Isolates' profiles were as follows (susceptible-S/resistant-R): CPS/ColR, CPR/ColR, and CPR/ColS. Pulse-field gel electrophoresis, multilocus sequence typing, and whole genome sequencing were performed. Conjugation assays were carried out and PCR determination in transconjugants (Tcs) was made for: blaCTX-M-groups, blaNDM, blaKPC, blaTEM, qnr alleles, aac(6')Ib-cr, ermB, and plasmid incompatibility groups (Inc). Results: All isolates belonged to the same clone, to ST258 and harbored blaCTX-M-14, blaCTX-M-15, qnrA1, qnrB1, aac(6')Ib-cr, and wzi154 (capsule-locus KL107). One isolate had additional wzi gene, wzi109 (capsule-locus KL36). In CPR isolates, the pattern was explained for blaNDM-1 or blaNDM-1/blaKPC-2 presence, and in ColR for IS5-like element insertion in mgrB at different positions. Co-mobilization of blaNDM-1/qnrA1 was associated to a different plasmid Inc (A/C-FII) in both blaNDM-1 donors. Mobilization of blaCTX-M-14 was related to IncI1 in one donor. Conclusion: These findings highlight the potential plasticity of ST258 K. pneumoniae clone. To the best of our knowledge, this is the first description of blaNDM-1/blaKPC-2-producing K. pneumoniae ST258 in Latin America.

Wicca como fenómeno cultural entre los jóvenes cubanos / Wicca as a cultural phenomenon among young cubans

RESUMEN La Wicca, considerada una nueva corriente religiosa, se ha hecho presente entre grupos de adolescentes y jóvenes cubanos. Sin embargo, resulta desconocida para la mayoría de los profesionales sanitarios. Se realizó una revisión bibliográfica, con el objetivo de analizarla como fenómeno religioso-cultural a nivel mundial y en Cuba.

ABSTRACT Wicca, considered a new religious trend, has become present among groups of cuban adolescents and youth. However, it is unknown to most healthcare professionals. A bibliographic review was carried out, with the aim of analyzing it as a religious-cultural phenomenon worldwide and in Cuba.

External Validation of a Predictive Model for Acute Skin Radiation Toxicity in the REQUITE Breast Cohort.

Background: Acute skin toxicity is a common and usually transient side-effect of breast radiotherapy although, if sufficiently severe, it can affect breast cosmesis, aftercare costs and the patient's quality-of-life. The aim of this study was to develop predictive models for acute skin toxicity using published risk factors and externally validate the models in patients recruited into the prospective multi-center REQUITE (validating pREdictive models and biomarkers of radiotherapy toxicity to reduce side-effects and improve QUalITy of lifE in cancer survivors) study. Methods: Patient and treatment-related risk factors significantly associated with acute breast radiation toxicity on multivariate analysis were identified in the literature. These predictors were used to develop risk models for acute erythema and acute desquamation (skin loss) in three Radiogenomics Consortium cohorts of patients treated by breast-conserving surgery and whole breast external beam radiotherapy (n = 2,031). The models were externally validated in the REQUITE breast cancer cohort (n = 2,057). Results: The final risk model for acute erythema included BMI, breast size, hypo-fractionation, boost, tamoxifen use and smoking status. This model was validated in REQUITE with moderate discrimination (AUC 0.65), calibration and agreement between predicted and observed toxicity (Brier score 0.17). The risk model for acute desquamation, excluding the predictor tamoxifen use, failed to validate in the REQUITE cohort. Conclusions: While most published prediction research in the field has focused on model development, this study reports successful external validation of a predictive model using clinical risk factors for acute erythema following radiotherapy after breast-conserving surgery. This model retained discriminatory power but will benefit from further re-calibration. A similar model to predict acute desquamation failed to validate in the REQUITE cohort. Future improvements and more accurate predictions are expected through the addition of genetic markers and application of other modeling and machine learning techniques.

Radiation therapy for bone-only metastases in breast cancer patients: A GOCO survey of current clinical practice.

INTRODUCTION: The role of radiation therapy (RT) for patients with bone-only metastatic (BOM) breast cancer has not been investigated sufficiently. The aim of this survey was to evaluate current clinical practice in treating breast cancer patients with BOM in Radiation Therapy Departments in Catalonia and Occitania within the scope of the GOCO group. MATERIALS AND METHODS: An electronic questionnaire was completed by experienced radiation oncologists from fourteen RT centers. The items surveyed the professional experience, therapeutic approach, technique, dose stereotactic body RT (SBRT) availability. RESULTS: All Radiation Oncology Departments (ROD) in Catalonia (12) and Occitania (2) responded to the survey. Eleven (78.5%) of the RODs advise RT for BOM as initial treatment in the oligometastatic setting. RT to asymptomatic bone oligometastases is more often restricted for "risky lesions". The most inconsistent approaches were the treatment for asymptomatic lesions, when to treat bone metastases with respect to systemic treatment (ST) and the indication for RT after a complete response to ST. CONCLUSION: While BOM breast cancer patients have a relatively good prognosis, there is a lack of consistency in their approach with RT. This can be explained by the absence of evidence-based guidelines and an incomplete availability of SBRT.

Efectos de la COVID-19 en la salud mental de la población / Effects of COVID-19 on the mental health of the population

Introducción: El mundo vive una situación excepcional por el avance de la pandemia producida por el coronavirus 2 del síndrome respiratorio agudo grave y la inédita medida de aislamiento social preventivo y obligatorio utilizada por varios países. Esta situación genera un impacto psicosocial que ha sido insuficientemente abordado. Objetivo: Analizar la repercusión que sobre la salud mental pudiera provocar la COVID-19 y las medidas para su prevención y control, así como las estrategias para favorecerla. Material y Métodos: Se realizó una revisión bibliográfica en el período comprendido entre marzo y abril de 2020. Se consultaron fuentes de información disponibles en la Biblioteca Virtual de Salud de la red telemática infomed, entre ellas, las bases de datos SciELO, Pubmed/Medline, Cumed, Lilacs. Se usó además el buscador Google académico. Se utilizaron los buscadores propios de las diferentes fuentes y se diseñó una estrategia de búsqueda a través de palabras claves, en español e inglés. Se recuperaron 7 citas bibliográficas en materiales cubanos y se seleccionaron para nuestro estudio un total de 21 referencias. Desarrollo: Se describen elementos que integran la salud mental como constructo multidisciplinario y los principales efectos que sobre la misma producen las epidemias. Se presentan estrategias para potenciar conductas que tributen a la salud mental en el contexto actual. Conclusiones: A la par de las medidas sanitarias, urge potenciar la resiliencia, el crecimiento personal, las relaciones intrafamiliares y la atención especial a los grupos vulnerables para así minimizar el impacto psicosocial de la epidemia en la población(AU)

Introduction: The world is experiencing an exceptional situation due to the advance of the pandemic caused by the severe acute respiratory syndrome coronavirus 2 and the unprecedented preventive and mandatory measure of social isolation used by various countries. This situation generates a psychosocial impact that has been insufficiently addressed. Objective: To analyze the repercussion that COVID-19 could cause on mental health and the measures for its prevention and control, as well as the strategies to favor it. Material and Methods: A bibliographic review was performed in the period between March and April 2020. Information sources available in the Virtual Health Library on the Cuban National Health Care Network and Portal (INFOMED) were consulted, including the SciELO, Pubmed / Medline, Cumed, and Lilacs databases. Google Scholar search engine was also used. The search engines of the different sources were used and a search strategy using keywords in Spanish and English was designed. Seven bibliographic citations were retrieved from Cuban materials and a total of 21 references were selected for our study. Development: Elements that integrate mental health as a multidisciplinary construct and the main effects that the epidemics produce on it are described. Strategies to promote behaviors that contribute to mental health in the current context are presented. Conclusions: Along with health measures, there is an urgent need to strengthen resilience, personal growth, intra-family relationships and special attention to vulnerable groups in order to minimize the psychosocial impact of the epidemic on the population(AU)

Palbociclib and ribociclib in breast cancer: consensus workshop on the management of concomitant medication.

Drug-drug interactions are of significant concern in clinical practice in oncology, particularly in patients receiving Cyclin-dependent kinase (CDK) 4/6 inhibitors, which are typically exposed to long-term regimens. This article presents the highlights from the 'First Workshop on Pharmacology and Management of CDK4/6 Inhibitors: Consensus about Concomitant Medications'. The article is structured into two modules. The educational module includes background information regarding drug metabolism, corrected QT (QTc) interval abnormalities, management of psychotropic drugs and a comprehensive review of selected adverse effects of palbociclib and ribociclib. The collaborative module presents the conclusions of the five working groups, each of which comprised five experts from different fields. From these conclusions positive lists of drugs for treating common comorbid conditions that can be safely administered concomitantly with palbociclib and/or ribociclib were developed.

REQUITE: A prospective multicentre cohort study of patients undergoing radiotherapy for breast, lung or prostate cancer.

PURPOSE: REQUITE aimed to establish a resource for multi-national validation of models and biomarkers that predict risk of late toxicity following radiotherapy. The purpose of this article is to provide summary descriptive data. METHODS: An international, prospective cohort study recruited cancer patients in 26 hospitals in eight countries between April 2014 and March 2017. Target recruitment was 5300 patients. Eligible patients had breast, prostate or lung cancer and planned potentially curable radiotherapy. Radiotherapy was prescribed according to local regimens, but centres used standardised data collection forms. Pre-treatment blood samples were collected. Patients were followed for a minimum of 12 (lung) or 24 (breast/prostate) months and summary descriptive statistics were generated. RESULTS: The study recruited 2069 breast (99% of target), 1808 prostate (86%) and 561 lung (51%) cancer patients. The centralised, accessible database includes: physician- (47,025 forms) and patient- (54,901) reported outcomes; 11,563 breast photos; 17,107 DICOMs and 12,684 DVHs. Imputed genotype data are available for 4223 patients with European ancestry (1948 breast, 1728 prostate, 547 lung). Radiation-induced lymphocyte apoptosis (RILA) assay data are available for 1319 patients. DNA (n = 4409) and PAXgene tubes (n = 3039) are stored in the centralised biobank. Example prevalences of 2-year (1-year for lung) grade ≥2 CTCAE toxicities are 13% atrophy (breast), 3% rectal bleeding (prostate) and 27% dyspnoea (lung). CONCLUSION: The comprehensive centralised database and linked biobank is a valuable resource for the radiotherapy community for validating predictive models and biomarkers. PATIENT SUMMARY: Up to half of cancer patients undergo radiation therapy and irradiation of surrounding healthy tissue is unavoidable. Damage to healthy tissue can affect short- and long-term quality-of-life. Not all patients are equally sensitive to radiation "damage" but it is not possible at the moment to identify those who are. REQUITE was established with the aim of trying to understand more about how we could predict radiation sensitivity. The purpose of this paper is to provide an overview and summary of the data and material available. In the REQUITE study 4400 breast, prostate and lung cancer patients filled out questionnaires and donated blood. A large amount of data was collected in the same way. With all these data and samples a database and biobank were created that showed it is possible to collect this kind of information in a standardised way across countries. In the future, our database and linked biobank will be a resource for research and validation of clinical predictors and models of radiation sensitivity. REQUITE will also enable a better understanding of how many people suffer with radiotherapy toxicity.

Influencia del estigma social en la rehabilitación y reinserción social de personas esquizofrénicas / Influence of social stigma on the rehabilitation and social reintegration of schizophrenic people

Introducción: El estigma es un constructo social que incluye actitudes, sentimientos, creencias y comportamiento que está configurado como prejuicio y trae como consecuencias discriminatorias hacia la persona estigmatizada. Las personas que padecen algún trastorno mental son uno de los grupos más estigmatizados de nuestra sociedad, especialmente las que padecen esquizofrenia. Objetivo: Fundamentar cómo el estigma social influye de manera negativa en la rehabilitación y reinserción social de las personas que padecen Esquizofrenia. Material y Métodos: Se realizó una revisión bibliográfica en fuentes de información disponibles en la Biblioteca Virtual de Salud de la red telemática Infomed, entre ellas, las bases de datos SciELO, Pubmed/Medline, Cumed, Lilacs, así como el Google académico. Finalmente se seleccionaron para nuestro estudio un total de 38 referencias. Desarrollo: El estigma se considera un constructo social y está asociado a numerosos factores psicológicos, sociológicos, históricos, así como a la representación social que se tenga de la causa de la estigmatización. Puede clasificarse de varias maneras y su abordaje resulta sumamente complejo, especialmente en lo relacionado con la Esquizofrenia. Conclusiones: El estigma social, unido a la representación que sobre la Esquizofrenia persiste en nuestro medio, son fenómenos que impiden una adecuada reinserción social en este tipo de pacientes. Urge el desarrollo de estrategias que modifiquen los falsos conceptos que sobre a enfermedad mental, persisten en nuestra sociedad(AU)

Introduction: Stigma is a social construct that includes attitudes, feelings, beliefs, and behavior that is configured as prejudice and brings about discriminatory consequences toward the stigmatized person. People who suffer from a mental disorder are recognized as one of the most stigmatized groups in our society, especially those who suffer from Schizophrenia. Objective: To establish how social stigma has a negative influence on the rehabilitation and social reintegration of people suffering from Schizophrenia. Material and Methods: A bibliographic review was made through the search of information in sources available from the Cuban National Health Care Network and Portal (INFOMED), among them, databases such as SciELO, Pubmed / Medline, Cumed, Lilacs, as well as Google Scholar. Finally, a total of 38 references were selected for our study. Development: Stigma is considered a social construct and is associated with many psychological, sociological, and historical factors, as well as the social representation of the cause of stigmatization. It can be classified in several ways. Its approach is extremely complex, especially when it is related to Schizophrenia. Conclusions: The social stigma, together with the representation in Schizophrenia that persists in our environment, are phenomena that prevent an adequate social reintegration in these patients. The development of strategies that modify the false concepts that persist over mental illness in our society is an urgent concern(AU)