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Introduction A new type of coronavirus (SARS-CoV-2) causes a respiratory distress syndrome that has been called COVID-19 and has generated an unprecedented pandemic. Serious complications include pneumonia, and mortality ranges from 2 to 5%. Until March 26, the World Health Organization reports 462 684 confirmed cases and 20 834 deaths worldwide. Dissemination occurs from aerosols or respiratory droplets. Different scientific societies have published clinical practice guidelines regarding ophthalmic care in the COVID-19 pandemic, but the information is presented inconsistently, which makes decision-making difficult. Methods We conducted a sensitive bibliographic search in EMBASE and ophthalmic society webpages, of the clinical practice guidelines of ophthalmic care in pandemic COVID-19. We extracted the recommendations, organizing them into three categories "Which patients to attend", "How should the clinic work", and "What interventions should be avoided". For each guideline, we assessed whether the search was systematic and whether the Grading of Recommendations Assessment, Development and Evaluation (GRADE) methodology was followed. Results Fourteen relevant articles were found. Fifty-one recommendations were extracted and are shown in a summary table. None are based on a systematic search for evidence, nor do any use GRADE to develop the recommendations. Conclusions The clinical practice guidelines that we reviewed all recommend rescheduling all non-urgent consultations and surgeries, reinforcing contact precautions, the use of personal protection elements, and the disinfection of surfaces and instruments. The guidelines should be improved by incorporating systematic searches for evidence, using GRADE for recommendations, and Appraisal of Guidelines for Research and Evaluation (AGREE II) for reporting.The COVID-19 pandemic declared by the World Health Organization (WHO) has generated a wide-ranging debate regarding epidemiological forecasts and the global implications. With the data obtained from the Chilean Ministry of Health (MINSAL), a prospective study was carried out using the generalized SEIR model to estimate the course of COVID-19 in Chile. Three scenarios were estimated Scenario 1 with official MINSAL data; scenario 2 with official MINSAL data and recovery criteria proposed by international organizations of health; and scenario 3 with official MINSAL data, recovery criteria proposed by international organizations of health, and without considering deaths in the total recovered. There are considerable differences between scenario 1 compared to 2 and 3 in the number of deaths, active patients, and duration of the disease. Scenario 3, considered the most adverse, estimates a total of 11,000 infected people, 1,151 deaths, and that the peak of the disease will occur in the first days of May. We concluded that the concept of recovered may be decisive for the epidemiological forecasts of COVID-19 in Chile.Introduction Payment mechanisms serve to put into operation the function of purchasing in health. Payment mechanisms impact the decisions that healthcare providers make. Given this, we are interested in knowing how they affect the generalized increase of C-section rates globally. Objective The objective of this review is to describe existing payment mechanisms for childbirth in countries members of the Organization for Economic Co-operation and Development (OECD) and non-members. Methods We conducted a scoping review following the five methodological steps of the Joanna Briggs Institute. The search was conducted by researchers independently, achieving inter-reliability among raters (kappa index, 0.96). We searched electronic databases, grey literature, and governmental and non-governmental websites. We screened on three levels and included documents published in the last ten years, in English and Spanish. Results were analyzed considering the function of the reimbursement mechanism and its effects on providers, payers, and beneficiaries. Results Evidence from 34 countries was obtained (50% OECD members). Sixty-four percent of countries report the use of more than one payment mechanism for childbirth. Diagnosis-Related Groups (47.6%), Pay-for-performance (23.3%), Fee-for-service (16.6%) and Fixed-prospective systems (13.3%) are among the most frequently used mechanisms. Conclusion Countries use payment mechanism architecture to improve maternal-perinatal health indicators. Therefore, it is necessary to explore the best combination of mechanisms that improve the provision of health care and welfare of the population in the field of sexual and reproductive health.In experimental studies, researchers apply an intervention to a group of study participants and analyze the effects over a future or prospective timeline. The prospective nature of these types of studies allows for the determination of causal relationships, but the interventions they are based on require rigorous bioethical evaluation, approval from an ethics committee, and registration of the study protocol prior to implementation. Experimental research includes clinical and preclinical testing of a novel intervention or therapy at different phases of development. The main objective of clinical trials is to evaluate an interventions efficacy and safety. [https://www.selleckchem.com/products/way-309236-a.html WAY-309236-A concentration] Conventional clinical trials are blinded, randomized, and controlled, meaning that participants are randomly assigned to either the study intervention group or a comparator (a control group exposed to a placebo intervention or another non-placebo or active interventionor not exposed to any intervention) to reduce selection and confounding biases, and researchlopment, bioethical issues, structure, design, association measures, biases, and reporting guidelines. Factors that should be considered in the execution and evaluation of a clinical trial are also covered.Introduction By definition, hypertensive cardiopathy is a series of complex and variable effects responsible for the chronic elevation of blood pressure in the heart. It stands out within a broad spectrum of cardiovascular diseases associated with hypertension. Objective To evaluate the capacity to predict the development of adaptive changes to hypertensive cardiopathy within ten years following diagnosis of the condition, using a model based on prognostic factors. Methods A prospective cohort study was conducted in hypertensive patients. The patients were followed at the specialized hypertension physicians office of the specialty policlinic attached to Carlos Manuel de Céspedes University Hospital, in the Bayamo Municipality, Granma Province, Cuba, from 1 January 2008 to 31 December 2018. Results Coxs proportional regression model showed a significant statistical relationship between most of the factors and the development of the adaptive changes in hypertensive cardiopathy within ten years of follow-up after the diagnosis of this condition.