Impacto de un entrenamiento de simulación virtual remota sincrónica para el tratamiento inicial del accidente cerebrovascular isquémico en estudiantes de medicina  <span class="so-article-trans-title" dir="auto"> Translated title: Impact of synchronous remote virtual simulation training, for the initial management of ischemic stroke in medical students </span>

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Abstract

Introducción. El accidente cerebrovascular (ACV) es una patología prevalente y dependiente del tiempo. Su tratamiento completo inicial es competencia obligatoria del médico general en Chile. En el contexto de la enseñanza clínica tradicional, hay pocas oportunidades de práctica en ese momento de la evolución de los casos. El objetivo fue evaluar el efecto de un programa de simulación virtual remota sincrónica para el tratamiento inicial del ACV en estudiantes de quinto año de medicina. Sujetos y métodos. Estudio cuantitativo, cuasi experimental. Se realizaron cinco sesiones, en días separados, en grupos de tres estudiantes. Cada sesión consistió en tres escenarios de simulación virtual de complejidad creciente, administrada de manera remota, con registro de desempeño individual y debriefing grupal. Se calculó la confiabilidad y se utilizó la prueba de Wilcoxon para muestras relacionadas con p < 0,05 como estadísticamente significativa para comparar los cuestionarios pre- y poscurso. Resultados. Se observó una mejoría del diagnóstico y el tratamiento farmacológico inicial del ACV entre el primer y el tercer casos. Los participantes declararon que la experiencia con el simulador creó oportunidades para la práctica clínica simulada y promovió el desarrollo de la formación en comunicación (p < 0,005). La satisfacción con el programa medida después del término del curso mostró un alto grado de acuerdo promedio. Conclusiones. La simulación virtual aplicada en un programa de práctica deliberada, con debriefing guiado por un instructor, mejoró las competencias para el tratamiento inicial del ACV en estudiantes de grado de medicina y fue muy bien valorada por los estudiantes.

Translated abstract

Introduction. Stroke is a prevalent and time-dependent pathology. Its complete initial management is a mandatory competence of the general practitioner in Chile. In the context of traditional clinical teaching, there are few opportunities for practice at that moment of the evolution of cases. The objective was to evaluate the effect of a remote virtual simulation program, synchronous with debriefing, for the initial management of stroke in fifth year medical students. Subjects and methods. Quantitative, quasi-experimental study. Five sessions were conducted on separate days in groups of three students. Each session consisted of three virtual simulation scenarios of increasing complexity, administered remotely, with individual performance recording and group debriefing. Reliability was calculated and the Wilcoxon test for related samples with p < 0.05 was used as statistically significant to compare pre and post course questionnaires. Results. Improvement in the diagnosis and initial pharmacological management of stroke was observed between the first and third cases. Participants stated that the simulator experience created opportunities for simulated clinical practice and promoted the development of communication training (p < 0.005). Satisfaction with the program measured after completion of the course showed a high degree of average agreement. Conclusions. Virtual simulation applied in a deliberate practice program, with instructor-guided debriefing has improved competencies for the initial management of stroke in undergraduate medical students and was highly valued by the students.

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Global, regional, and national life expectancy, all-cause mortality, and cause-specific mortality for 249 causes of death, 1980–2015: a systematic analysis for the Global Burden of Disease Study 2015

Haidong Wang, Mohsen Naghavi, Christine Allen … (2017)

Summary Background Improving survival and extending the longevity of life for all populations requires timely, robust evidence on local mortality levels and trends. The Global Burden of Disease 2015 Study (GBD 2015) provides a comprehensive assessment of all-cause and cause-specific mortality for 249 causes in 195 countries and territories from 1980 to 2015. These results informed an in-depth investigation of observed and expected mortality patterns based on sociodemographic measures. Methods We estimated all-cause mortality by age, sex, geography, and year using an improved analytical approach originally developed for GBD 2013 and GBD 2010. Improvements included refinements to the estimation of child and adult mortality and corresponding uncertainty, parameter selection for under-5 mortality synthesis by spatiotemporal Gaussian process regression, and sibling history data processing. We also expanded the database of vital registration, survey, and census data to 14 294 geography–year datapoints. For GBD 2015, eight causes, including Ebola virus disease, were added to the previous GBD cause list for mortality. We used six modelling approaches to assess cause-specific mortality, with the Cause of Death Ensemble Model (CODEm) generating estimates for most causes. We used a series of novel analyses to systematically quantify the drivers of trends in mortality across geographies. First, we assessed observed and expected levels and trends of cause-specific mortality as they relate to the Socio-demographic Index (SDI), a summary indicator derived from measures of income per capita, educational attainment, and fertility. Second, we examined factors affecting total mortality patterns through a series of counterfactual scenarios, testing the magnitude by which population growth, population age structures, and epidemiological changes contributed to shifts in mortality. Finally, we attributed changes in life expectancy to changes in cause of death. We documented each step of the GBD 2015 estimation processes, as well as data sources, in accordance with Guidelines for Accurate and Transparent Health Estimates Reporting (GATHER). Findings Globally, life expectancy from birth increased from 61·7 years (95% uncertainty interval 61·4–61·9) in 1980 to 71·8 years (71·5–72·2) in 2015. Several countries in sub-Saharan Africa had very large gains in life expectancy from 2005 to 2015, rebounding from an era of exceedingly high loss of life due to HIV/AIDS. At the same time, many geographies saw life expectancy stagnate or decline, particularly for men and in countries with rising mortality from war or interpersonal violence. From 2005 to 2015, male life expectancy in Syria dropped by 11·3 years (3·7–17·4), to 62·6 years (56·5–70·2). Total deaths increased by 4·1% (2·6–5·6) from 2005 to 2015, rising to 55·8 million (54·9 million to 56·6 million) in 2015, but age-standardised death rates fell by 17·0% (15·8–18·1) during this time, underscoring changes in population growth and shifts in global age structures. The result was similar for non-communicable diseases (NCDs), with total deaths from these causes increasing by 14·1% (12·6–16·0) to 39·8 million (39·2 million to 40·5 million) in 2015, whereas age-standardised rates decreased by 13·1% (11·9–14·3). Globally, this mortality pattern emerged for several NCDs, including several types of cancer, ischaemic heart disease, cirrhosis, and Alzheimer's disease and other dementias. By contrast, both total deaths and age-standardised death rates due to communicable, maternal, neonatal, and nutritional conditions significantly declined from 2005 to 2015, gains largely attributable to decreases in mortality rates due to HIV/AIDS (42·1%, 39·1–44·6), malaria (43·1%, 34·7–51·8), neonatal preterm birth complications (29·8%, 24·8–34·9), and maternal disorders (29·1%, 19·3–37·1). Progress was slower for several causes, such as lower respiratory infections and nutritional deficiencies, whereas deaths increased for others, including dengue and drug use disorders. Age-standardised death rates due to injuries significantly declined from 2005 to 2015, yet interpersonal violence and war claimed increasingly more lives in some regions, particularly in the Middle East. In 2015, rotaviral enteritis (rotavirus) was the leading cause of under-5 deaths due to diarrhoea (146 000 deaths, 118 000–183 000) and pneumococcal pneumonia was the leading cause of under-5 deaths due to lower respiratory infections (393 000 deaths, 228 000–532 000), although pathogen-specific mortality varied by region. Globally, the effects of population growth, ageing, and changes in age-standardised death rates substantially differed by cause. Our analyses on the expected associations between cause-specific mortality and SDI show the regular shifts in cause of death composition and population age structure with rising SDI. Country patterns of premature mortality (measured as years of life lost [YLLs]) and how they differ from the level expected on the basis of SDI alone revealed distinct but highly heterogeneous patterns by region and country or territory. Ischaemic heart disease, stroke, and diabetes were among the leading causes of YLLs in most regions, but in many cases, intraregional results sharply diverged for ratios of observed and expected YLLs based on SDI. Communicable, maternal, neonatal, and nutritional diseases caused the most YLLs throughout sub-Saharan Africa, with observed YLLs far exceeding expected YLLs for countries in which malaria or HIV/AIDS remained the leading causes of early death. Interpretation At the global scale, age-specific mortality has steadily improved over the past 35 years; this pattern of general progress continued in the past decade. Progress has been faster in most countries than expected on the basis of development measured by the SDI. Against this background of progress, some countries have seen falls in life expectancy, and age-standardised death rates for some causes are increasing. Despite progress in reducing age-standardised death rates, population growth and ageing mean that the number of deaths from most non-communicable causes are increasing in most countries, putting increased demands on health systems. Funding Bill & Melinda Gates Foundation.

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Low-dose, high-frequency CPR training improves skill retention of in-hospital pediatric providers.

Vinay Nadkarni, Benjamin French, Evelyn L Lengetti … (2011)

To investigate the effectiveness of brief bedside cardiopulmonary resuscitation (CPR) training to improve the skill retention of hospital-based pediatric providers. We hypothesized that a low-dose, high-frequency training program (booster training) would improve CPR skill retention. CPR recording/feedback defibrillators were used to evaluate CPR quality during simulated arrest. Basic life support-certified, hospital-based providers were randomly assigned to 1 of 4 study arms: (1) instructor-only training; (2) automated defibrillator feedback only; (3) instructor training combined with automated feedback; and (4) control (no structured training). Each session (time: 0, 1, 3, and 6 months after training) consisted of a pretraining evaluation (60 seconds), booster training (120 seconds), and a posttraining evaluation (60 seconds). Excellent CPR was defined as chest compression (CC) depth ≥ one-third anterior-posterior chest depth, rate ≥90 and ≤120 CC per minute, ≤20% of CCs with incomplete release (>2500 g), and no flow fraction ≤ 0.30. Eighty-nine providers were randomly assigned; 74 (83%) completed all sessions. Retention of CPR skills was 2.3 times (95% confidence interval [CI]: 1.1-4.5; P=.02) more likely after 2 trainings and 2.9 times (95% CI: 1.4-6.2; P=.005) more likely after 3 trainings. The automated defibrillator feedback only group had lower retention rates compared with the instructor-only training group (odds ratio: 0.41 [95% CI: 0.17-0.97]; P = .043). Brief bedside booster CPR training improves CPR skill retention. Our data reveal that instructor-led training improves retention compared with automated feedback training alone. Future studies should investigate whether bedside training improves CPR quality during actual pediatric arrests. Copyright © 2011 by the American Academy of Pediatrics.