Environmental pollution in North-Eastern Italy and its influence on chronic obstructive pulmonary disease: time series modelling and analysis using visibility graphs.

The impact on human health from environmental pollution is receiving increasing attention. In the case of respiratory diseases such as chronic obstructive pulmonary disease (COPD), the relationship is now well documented. However, few studies have been carried out in areas with low population density and low industrial production, such as the province of Belluno (North-Eastern Italy). The aim of the study was to analyze the effect of exposure to certain pollutants on the temporal dynamics of hospital admissions for COPD in the province of Belluno. Daily air pollution concentration, humidity, precipitations, and temperature were collected from the air monitoring stations in Belluno. Generalized additive mixed models (GAMM) and visibility graphs were used to determine the effects of the short-term exposure to environmental agents on hospital admissions associated to COPD. In the case of the city of Belluno, the GAMM showed that hospital admissions were associated with NO2, PM10, date, and temperature, while for the city of Feltre, GAMM produced no associated variables. Several visibility graph indices (average edge overlap and interlayer mutual information) showed a significant overlap between environmental agents and hospital admission for both cities. Our study has shown that visibility graphs can be useful in establishing associations between environmental agents and COPD hospitalization in sparsely populated areas.

Nurse-Led Interventions in Chronic Obstructive Pulmonary Disease Patients: A Systematic Review and Meta-Analysis.

Chronic obstructive pulmonary disease (COPD) is the third leading cause of death worldwide, causing 3.32 million deaths in 2019. COPD management has increasingly become a major component of general and hospital practice and has led to a different model of care. Nurse-led interventions have shown beneficial effects on COPD patient satisfaction and clinical outcomes. This systematic review was conducted to identify and assess nurse-led interventions in COPD patients in terms of mental, physical, and clinical status. The review was carried out following the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) statement. The relevance of each manuscript was assessed according to the inclusion criteria, and we retrieved full texts, as required, to reach our conclusions. Data extraction was performed independently by two reviewers, and the risk of bias was assessed using the Cochrane Risk of Bias tool. Forty-eight articles were included in the analysis, which focused on the management of COPD patients by hospital, respiratory and primary nursing care. Nursing management was shown to be highly effective in improving quality of life, emotional state, and pulmonary and physical capacity in COPD patients. In comparison, hospital and respiratory nurses carried out interventions with higher levels of effectiveness than community nurses.

Individual Circadian Preference, Eating Disorders and Obesity in Children and Adolescents: A Dangerous Liaison? A Systematic Review and a Meta-Analysis.

BACKGROUND: Obesity and other eating disorders are an actual public health problem, especially in childhood and adolescents, and could be also related with chronotype. The aim of this systematic review was to determine the relationship between eating disorders, obesity and the different chronotypes in children and adolescents. METHODS: A systematic review of observational studies evaluating young populations dealing with and evaluating chronotype was conducted. Electronic searches were performed in six international databases. A qualitative thematic-categorical analysis was carried out and a random-effects model was used for the quantitative analysis (meta-analysis). RESULTS: Fifteen studies were included, but quantitative analysis was only carried out in three of them. Children and adolescents with an evening chronotype had higher body mass index, consumed more junk food or were more predisposed to suffer from food addiction and night eating syndrome. CONCLUSIONS: Children and adolescents with evening chronotype had higher tendency to incorrect eating behaviors and were suffering from overweight/obesity. Environment but also lifestyle factors should be considered in the association between chronotype and eating disorders and obesity.

Impact of sound levels on physiological and consciousness state of cardiovascular patients.

BACKGROUND: Patients treated in intensive care units (ICUs) experience life-threatening medical conditions but some external factors in ICUs do not help or even adversely affect and complicate their evolution. Among others, such factors include noise pollution due to alarms and medical clinical equipment, as well as the activities of the health care personnel themselves. AIM: This study aimed to evaluate the influence of elevated sound levels on physiological variables and the consciousness state of patients treated in a cardiovascular area in an ICU. DESIGN: A longitudinal study with several observations was carried out during 1 month in the cardiovascular area of an ICU of a third-level hospital in southern Spain. METHODS: Sound levels were monitored in different work shifts and patients' physiological data and consciousness status were recorded. Generalized additive mixed models (GAMMs) were developed to detect the variability of the sound levels together with the vital parameters of the patients in the ICU. RESULTS: Thirty-eight patients were included. The mean sound level was 54.09 dBA. The GAMM sound levels analysis showed a significant increase in sound levels from 4:30 p.m. to 8:00 p.m. (1.83 dBA; P < .001) and 8:00 p.m. to 11:30 p.m. (3.06 dBA; P < .001). An increase in heart rate (3.66 bpm; P < .001), respiratory rate (2.62 rpm; P < .001) and the Glasgow Coma Scale (0.50 units; P = .002) was detected during the 4:30 p.m.-8:30 p.m. CONCLUSIONS: Elevated sound levels in cardiovascular ICUs seem to influence positively the physiological and consciousness status of patients. Given the importance of the findings for patient safety, future intervention studies are recommended. RELEVANCE TO CLINICAL PRACTICE: The finding of this study could translate into structural changes in ICU facilities, as well as the development of clinical practice guidelines that influence the behaviour of health care professionals.

Early detection of risk for clinical deterioration in emergency department patients: validation of a version of the National Early Warning Score 2 for use in Spain. / Validación en España de la escala National Early Warning Score 2 (NEWS-2) para la detección precoz en urgencias de pacientes en riesgo de deterioro.

OBJECTIVES: To determine the ability of a Spanish translation of the National Early Warning Score 2 (NEWS2) to predict hospitalizations and adverse events during triage in hospital emergency departments. MATERIAL AND METHODS: Prospective observational study in 2 phases. Phase 1 took place in October and November 2019 and phase 2 in January and February 2020. Phase 1 involved the translation and back translation process to produce an adapted Spanish version of the NEWS2 tool, the piloting of the adapted tool, and training sessions for nurses on how to use the scale. Phase 2 was a validation study of the translated scale for use in Spain. We analyzed its psychometric properties and capacity to predict adverse events and hospital admissions. Adult patients (over the age of 18 years) were recruited consecutively in a hospital emergency department in Spain. RESULTS: We evaluated 523 patients, 81 in phase 1 and 442 in phase 2. The validated Spanish language version of the NEWS2 tool achieved a Cronbach α score of 0.70. The intraclass correlation coefficients for intra- and inter-observer reliability, respectively, were 0.996 (95% CI, 0.995-0.997) and approaching 1 (95% CI, 0.999-1). The area under the receiver operating characteristic curve was 0.969 (95% CI, 0.938-1) for adverse events and 0.881 (95% CI, 0.819-0.943) for hospitalization. CONCLUSION: The ability of the Spanish version of the NEWS2 scale to predict hospital admissions and adverse events is high when used during hospital emergency department triage.

OBJETIVO: Conocer la capacidad predictiva en términos de ingresos hospitalarios y de aparición de eventos adversos de la escala de alerta temprana National Early Warning Score 2 (NEWS-2) en la consulta de triaje de los servicios de urgencias hospitalarios (SUH). METODO: Estudio observacional prospectivo dividido en dos fases: Fase I (octubre-noviembre 2019) y Fase II (enero-febrero 2020). En la Fase I se llevó a cabo un proceso de traducción-retrotraducción, se formó al personal de Enfermería en el manejo de la escala NEWS-2 adaptada al español, y se realizó un pilotaje de la escala. En la Fase II se procedió a la validación de la escala analizando sus propiedades psicométricas y predictivas en términos de aparición de eventos adversos e ingresos hospitalarios. Se incluyeron consecutivamente a los usuarios adultos (mayores de 18 años) de un SUH en España. RESULTADOS: Se valoraron 523 pacientes, 81 en la fase I y 442 en la fase II. La versión de la escala NEWS-2 en español obtenida tras el proceso de validación mostró un valor de alfa Cronbach de 0,70. El coeficiente de correlación intraclase para la fiabilidad intra e interobservador fue de 0,996 (IC 95%: 0,995-0,997) y 1 (IC 95%: 0,999-1), respectivamente. El área bajo la curva de la característica operativa del receptor fue de 0,969 (IC 95%: 0,938-1) para eventos adversos y de 0,881 (IC 95%: 0,819-0,943) para ingreso hospitalario. CONCLUSIONES: La escala NEWS-2 tiene alta capacidad predictiva de ingresos hospitalarios y eventos adversos cuando se aplica en la consulta de triaje de los SUH.

Risky Behaviours of Spanish University Students: Association with Mediterranean Diet, Sexual Attitude and Chronotype.

The most common drugs that are consumed by young people are alcohol and tobacco, which are especially prevalent in universities. These risk behaviours can be determined by a series of intrinsic and extrinsic factors. The aim of this study was to evaluate the consumption of alcohol and tobacco by Spanish university students and the relationship between the Mediterranean diet, sexual attitudes and opinions, and chronotype. A multicentre observational study enrolled 457 students from two public universities in Spain. The study period was from December 2017 to January 2018. The majority of the participants consumed alcohol (90.2%), tobacco consumption was low (27.2%), with a high percentage of students (78.6%) having a low dependence on nicotine. The surveyed students demonstrated a high adherence to the Mediterranean diet, which was shown to be associated with less risky alcohol consumption. The Mediterranean diet is a part of healthy lifestyle, and avoiding heavy drinking results in the intention to maintain such a lifestyle. In addition, unhealthy eating habits (skipping breakfast, eating sweets and pastries daily, and fast-food consumption) had a tendency to induce risky alcohol consumption. Therefore, to promote healthy lifestyle habits, it is considered important to establish programs that promote healthy diets in university settings and to evaluate them periodically.

Predictive power of early-warning scores used in hospital emergency departments: a systematic review and meta-analysis. / Capacidad predictiva de las escalas de alerta temprana en los servicios de urgencias hospitalarios: revisión sistemática y metanálisis.

OBJECTIVES: To assess the predictive power of scores used in hospital emergency departments (EDs) to give early warning of risk for mortality and hospital ward or intensive care unit (ICU) admission. MATERIAL AND METHODS: Systematic review and meta-analysis. We searched MEDLINE, Embase, the Web of Science, and the Cochrane Library. Observational studies and clinical trials published between January 1, 1950, and June 12, 2020 that used early-warning scores in hospital EDs were included. The main outcomes were mortality (at 24, 48, and more than 72 hours), hospital admission, and ICU admission. RESULTS: Nine studies entered into the systematic review; 4 of them, with 165 580 patients, were included in the meta-analysis. The studies were heterogeneous with respect to the scores used. The one used most often was the National Early Warning Score (NEWS). The meta-analysis of studies using the NEWS scale showed that it had good predictive power for mortality: the area under the curve (AUC) of the receiver operating characteristic was 0.88 (95%, CI, 0.87-0.89; P .001, I2 = 0%) at 24 hours and 0.86 (0.84-0.88; P .001; I2 = 49.3%) at 48 hours. The AUC for inhospital mortality was 0.77 (95% CI, 0.74-0.80; P .001; I2 = 96.2%). The NEWS score had adequate power for predicting risk of hospital ward and ICU admission. CONCLUSION: Early warning scores used in hospital EDs are able to predict risk of early and in-hospital mortality.

OBJETIVO: Evaluar, en términos de ingreso hospitalario o en unidad de cuidados intensivos (UCI) y muerte, la capacidad predictiva de las escalas de alerta temprana en los servicios de urgencias hospitalarios (SUH). METODO: Revisión sistemática y metanálisis. Se consultaron las bases de datos Medline, Embase, Web of Science y Cochrane Library. Se incluyeron estudios observacionales y ensayos clínicos publicados entre e 1 de enero de 1950 y 12 de junio de 2020 en los que se empleara una escala de alerta temprana en los SUH. Las variables de resultados principales fueron mortalidad (24 horas, 48 horas y más de 72 horas) e ingreso hospitalario y en UCI. RESULTADOS: Se seleccionaron 9 estudios en la revisión sistemática, 4 se incluyeron en el metanálisis (165.580 pacientes). Hubo heterogeneidad en las escalas empleadas, siendo la escala NEWS la más utilizada. El uso de la escala NEWS mostró una buena capacidad predictiva para la mortalidad a las 24 horas [AUROC 0,88 (IC 95% 0,87-0,89); p 0,001; I2 = 0%], a las 48 horas [AUROC 0,86 (IC 95% 0,84-0,88); p 0,001; I2 = 49,3%] e intrahospitalaria [AUROC: 0,77 (IC 95% 0,74-0,80); p 0,001; I2 = 96,2%]. Para el ingreso hospitalario y en UCI, NEWS mostró una capacidad predictiva adecuada. CONCLUSIONES: El uso de las escalas de alerta temprana en los SUH muestra una capacidad predictiva buena en términos de mortalidad temprana e intrahospitalaria.

Characteristics of the Spanish Older People in the Use of Accidents and Emergency Unit Services (2014-2017).

The aim of this study was to determine which factors are related to Accidents and Emergency Unit (AEU) use by the elderly Spanish population. Observational analysis of the 2014 European Survey of Health in Spain (ESHS-2014; N = 6,520) and the 2017 Spanish Health Survey (SHS-2017; N = 7,024) was employed. About one third (4,095, 30.2%) of the sample used the AEU, and they were primarily women (32.6%). Comorbidity (p = .01), presence of physical limitation in the prior 6 months to the survey, and a history of several diseases (p < .001)-as in diabetes (p < .001), osteoarthritis (p < .001), and chronic bronchitis, emphysema, or chronic obstructive pulmonary disease (p < .001)-were associated with AEU visits in both surveys. Female sex and several cardiovascular diseases were only significant in the ESHS-2014. In the SHS-2017, depressive status was an independent risk factor. This epidemiological data allow a better understanding of the use of AEU, suggesting indications for the care process.

Evolution in the use of health services by older people in Spain (2009-2017).

As people age, they tend to increase their use of health services. For this, the aims of this study were to analyse the frequency and variability in the use of different health services by people over 65 years, their evolution from 2009 to 2017 and the factors associated it. We carried out a cross-sectional study with 25,465 people over 65 years who participated in the National Health Survey in Spain in 2011/2012 and 2017 and the European Health Survey in Spain in 2009 and 2014. A descriptive analysis was performed using the attendance records of family/general physicians, nurse consultations, or both over the last 12 months as well as these data over the following years of study. Our findings show that approximately 93.2% of the participants had consulted with a family/general physician over the last year, and women were almost twice as likely to do so compared with men (61.2% vs. 38.8%). The use of health services gradually increased from 2009 to 2017, being the visits to nursing that more increased their frequency. Being a woman and a widower as well as having no higher education, a low social class, a serious or long-term illness, obesity and bed restraint were associated with a greater use of health services. Findings suggested that the increased health services due to ageing and comorbidities associated with it present new challenges. It is necessary to determine realistic plans that can meet future healthcare demands and not lead to a collapse of the health system. For this it is very important the primary prevention of chronic diseases, functional limitations, obesity and disability.

Severe trauma patients and nursing practice-associated infections.

AIMS: Our study examined factors influencing the development of healthcare-associated infections in the intensive care unit (ICU) of a tertiary hospital in southern Spain. BACKGROUND: Healthcare-associated infections are a frequent adverse event, significantly lengthening patient stays in the ICU. Nursing practice is a key factor in the infection control process. DESIGN: A retrospective longitudinal study with two observation periods (admission and discharge) was performed in an ICU of a tertiary hospital. METHODS: We analysed patient records for those admitted to this unit coded as CIE 800-959.9 from 2012 to 2016. Using binomial logistic regression analysis, we analysed factors associated with healthcare-associated infections. RESULTS: We analysed 375 records (men: 78.1%; average age: 46.63 years). Of these, 9.2% patients acquired a healthcare-associated infection during their stay. Nursing practice-related factors significantly associated with the development of infection were the number of days connected to mechanical ventilation and the number of days in the ICU. CONCLUSION: Healthcare-associated infections in patients with severe trauma admitted to the ICU are mainly associated with the management of invasive techniques. A multidisciplinary approach should focus on the review of action and care plans.

Intraosseous access in adults in cardiac arrest: a systematic review and meta-analysis. / Vía intraósea en adultos en situación de parada cardiaca: revisión sistemática y metanálisis.

OBJECTIVES: To evaluate the efficacy of intraosseous access versus venous access in out-of-hospital cardiac arrest in terms of return of spontaneous circulation (ROSC) and survival to hospital discharge with or without favorable neurologic status. MATERIAL AND METHODS: Systematic review and meta-analysis of articles indexed in MEDLINE (PubMed), Embase, the Web of Science, and the Cochrane Library. Other terms adapted to the language of each index were also used. We included observational studies and clinical trials published from January 1, 1950, to May 31, 2019, if the study population included adult patients in cardiac arrest outside the hospital and in whom an intraosseous or intravenous catheter was inserted. Risk of bias was evaluated with the Cochrane and GRADE (Grading of Recommendations Assessment, Development and Evaluation) tools. RESULTS: We identified 434 papers to include in the qualitative review and 5 studies for meta-analysis. Intraosseous access was related to a lower rate of ROSC (odds ratio [OR], 0.69; 95% CI, 0.57-0.83; P=.02; I2=65%) and worse survival to discharge (OR, 0.65; 95% CI, 0.51-0.83); P<.01, I2=30%). CONCLUSION: Intraosseous access in out-of-hospital cardiac arrest is related to poorer outcomes in terms of ROSC and survival at hospital discharge.

OBJETIVO: Evaluar la efectividad, en relación al retorno a circulación espontánea, la supervivencia al alta y la supervivencia al alta con buen estado neurológico, del acceso intraóseo frente al acceso venoso en la resucitación en parada cardiaca extrahospitalaria. METODO: Se realiza una revisión sistemática y metanálisis en las bases de datos Medline (PubMed), Embase, Web of Science y Cochrane Library. Se incluyeron estudios observacionales y ensayos clínicos registrados en las bases de datos mencionadas desde el 1 de enero de 1950 hasta el 31 de mayo de 2019, en los que la población incluida fueran pacientes adultos en situación de parada cardiaca extrahospitalaria y que tuvieran canalizado un acceso intraóseo o intravenoso. La evaluación del riesgo de sesgo se realizó mediante la herramienta de evaluación de sesgo de Cochrane y la herramienta GRADE. RESULTADOS: Se identificaron 434 referencias de las que 5 se incluyen en la síntesis cualitativa y cuantitativa. El acceso intraóseo se relaciona con una peor tasa de retorno a circulación espontánea [OR 0,69 (IC 95%: 0,57-0,83), p = 0,02, I 2 = 65%] y una peor supervivencia al alta hospitalaria [OR 0,65 (IC 95%: 0,51-0,83); p < 0,01, I2 = 30%] en comparación con el acceso venoso. CONCLUSIONES: El acceso intraóseo en pacientes en situación de parada cardiaca extrahospitalaria se relaciona con peores resultados en términos de retorno a circulación espontánea y supervivencia al alta hospitalaria.

Tranexamic acid in trauma patients in the emergency department: systematic review and meta-analysis. / Ácido tranexámico en pacientes con traumatismo en servicios de urgencias y emergencias: revisión sistemática y metanálisis.

OBJECTIVES: The aim of this systematic review and meta-analysis was to evaluate the efficacy (mortality and functional status) and safety of emergency department (ED) use of tranexamic acid (TXA) in patients with severe trauma. MATERIAL AND METHODS: MEDLINE, Embase, the Cochrane Library, the Web of Science, and ClinicalTrials.gov were searched to find relevant clinical trials published between January 1, 2008, and 1 August, 2018. The selected trials included trauma patients who received infusions of TXA within 8 hours. We extracted patient-related clinical variables and treatment variables. The main outcomes were mortality and functional status. RESULTS: Five clinical trials were included in the systematic review. Four of them (20 697 patients) were included in the metaanalysis. We found that TXA versus placebo was associated with lower mortality (OR, 0.89 [95% CI, 0.83-0.96]; P = .004; 2 = 0%) and better functional status (OR, 0.60 [95% CI, 0.39-0.94]; P = .02; I2 = 0%). However, intensive care unit stays were longer in patients administered TXA (mean difference, 2.55 days [95% CI, 0.04-5.06 days]; P = .05; I2 = 0%). CONCLUSION: ED infusion of TXA decreases mortality after severe trauma and improves patients' functional status.

OBJETIVO: Evaluar, en términos de mortalidad y estado funcional, la eficacia y seguridad de la administración de ácido tranexámico (TXA) en los pacientes que sufren un traumatismo grave en los servicios de urgencias y emergencias. METODO: Revisión sistemática y metaanálisis. Las bases de datos consultadas fueron Medline, Embase, The Cochrane Library, Web of Science y TheClinicalTrials.gov. Se incluyeron ensayos clínicos publicados entre el 1 de enero de 2008 y el 1 de agosto de 2018 en los que participaran pacientes que sufrían un traumatismo y a los que se les administró TXA en las primeras 8 horas tras este. Se extrajeron variables clínicas relacionadas con los pacientes y con la intervención. Las variables de resultado principales fueron la mortalidad y el estado funcional. RESULTADOS: Se incluyeron 5 ensayos clínicos para la revisión sistemática y 4 para el metanálisis (20.697 pacientes). Se detectó una disminución de la mortalidad (OR 0,89 [IC 95% 0,83-0,96]; p = 0,004; I2 = 0%) y un mejor estado funcional (OR 0,60 [IC 95% 0,39-0,94]; p = 0,02; I2 = 0%) tras la administración de TXA en estos pacientes en comparación con placebo. Por el contrario, se encontró una estancia en la unidad de cuidados intensivos más larga (diferencia de medias 2,55 días [IC 95% 0,04-5,06]; p = 0,05; I2 = 0%). CONCLUSIONES: La administración de TXA disminuye la mortalidad de los pacientes con traumatismo grave y mejora su estado funcional.

Gender, socioeconomic, medical, and environmental factors related to domestic accidents of the elderly in Spain. Findings of a national survey.

Domestic accidents pose serious threats to the independence of the elderly. We explored associations between domestic accidents and gender, socioeconomic, medical, and environmental factors using data from the European Health Survey 2014 for elderly Spanish female and male nationals. Records of 5960 participants (mean age ± SD: 75.9 ± 7.6 years), 59.8% of whom were women, were examined. Domestic accidents occurred in 460 (7.1%) seniors, predominately in women (78.5%). Age (adjusted odds ratio [aOR]: 1.02 [95% confidence interval [CI]: 1.00-1.03, p = .003], female gender (aOR 2.04 [95% CI 1.60-2.60, p < .001]), difficulty managing 12 stairs (reference: none) (some: aOR 2.03 [95% CI 1.53-2.68, p < .001]; much: aOR 2.88 [95% CI 2.15-3.87, p < .001]; inability: aOR 3.09 [95% CI 2.14-4.45, p < .001]), and depressive symptoms severity (reference: absent) (mild: aOR 1.44 [95% CI 1.10-1.89, p = .008]; moderate: aOR 1.91 [95% CI 1.35-2.71, p < .001];. Very severe: aOR 2.53 [95% CI 1.72-3.71, p < .001]; extremely severe: aOR 2.38 [95% CI 1.45-3.93, p = .001]) were independently associated with domestic accidents. Severity of depressive symptoms was the most prominent feature for women, while inability to manage 12 stairs was the most prominent for men. Our results suggest important gender differences in factors associated with domestic accidents that are relevant to intervention and preventive programs.

Prevalence and factors associated with influenza vaccination of persons over 65 years old in Spain (2009-2014).

BACKGROUND: Influenza is a major public health problem. Achieving 65% coverage in people over 65 years old is a health policy priority in Spain. OBJECTIVE: To determine the coverage of influenza vaccination in Spain in 2014 for people over 65 years and to analyze the factors associated with coverage and its progression between 2009 and 2014. METHODS: A descriptive cross-sectional study was conducted that included 18,442 non-institutionalized individuals over 65 years who had participated in the National Health Survey in Spain in 2011 and in the European Health Survey in Spain in 2009 and 2014. Socio-demographic variables, health variables, and influenza vaccination data were used. A logistic regression analysis was performed to determine the variables associated with anti-influenza vaccination. RESULTS: Influenza vaccination coverage has declined from 2009 (74.5%) to 2014 (57.4%). There are significant differences in the vaccination coverage among the different Spanish autonomous communities in the different years studied. Influenza vaccination was associated with males, low social class, and low level of education. There is greater participation in other preventive measures, such as assessing blood pressure, blood glucose, and cholesterol, than in influenza vaccination. CONCLUSIONS: Fewer people over 65 years old than recommended by the WHO participated in the influenza vaccination campaign in Spain in 2014. This coverage declined progressively from 2009 to 2014.

Epinephrine in cardiac arrest: systematic review and meta-analysis.

Objective: evaluate the effectiveness of epinephrine used during cardiac arrest and its effect on the survival rates and neurological condition. Method: systematic review of scientific literature with meta-analysis, using a random effects model. The following databases were used to research clinical trials and observational studies: Medline, Embase and Cochrane, from 2005 to 2015. Results: when the Return of Spontaneous Circulation (ROSC) with administration of epinephrine was compared with ROSC without administration, increased rates were found with administration (OR 2.02. 95% CI 1.49 to 2.75; I2 = 95%). Meta-analysis showed an increase in survival to discharge or 30 days after administration of epinephrine (OR 1.23; 95% IC 1.05-1.44; I2=83%). Stratification by shockable and non-shockable rhythms showed an increase in survival for non-shockable rhythm (OR 1.52; 95% IC 1.29-1.78; I2=42%). When compared with delayed administration, the administration of epinephrine within 10 minutes showed an increased survival rate (OR 2.03; 95% IC 1.77-2.32; I2=0%). Conclusion: administration of epinephrine appears to increase the rate of ROSC, but when compared with other therapies, no positive effect was found on survival rates of patients with favorable neurological status.

Epinephrine in cardiac arrest: systematic review and meta-analysis / A adrenalina durante parada cardíaca: revisão sistemática e meta-análise / Adrenalina en el paro cardíaco: revisión sistemática y metaanálisis

abstract Objective: evaluate the effectiveness of epinephrine used during cardiac arrest and its effect on the survival rates and neurological condition. Method: systematic review of scientific literature with meta-analysis, using a random effects model. The following databases were used to research clinical trials and observational studies: Medline, Embase and Cochrane, from 2005 to 2015. Results: when the Return of Spontaneous Circulation (ROSC) with administration of epinephrine was compared with ROSC without administration, increased rates were found with administration (OR 2.02. 95% CI 1.49 to 2.75; I2 = 95%). Meta-analysis showed an increase in survival to discharge or 30 days after administration of epinephrine (OR 1.23; 95% IC 1.05-1.44; I2=83%). Stratification by shockable and non-shockable rhythms showed an increase in survival for non-shockable rhythm (OR 1.52; 95% IC 1.29-1.78; I2=42%). When compared with delayed administration, the administration of epinephrine within 10 minutes showed an increased survival rate (OR 2.03; 95% IC 1.77-2.32; I2=0%). Conclusion: administration of epinephrine appears to increase the rate of ROSC, but when compared with other therapies, no positive effect was found on survival rates of patients with favorable neurological status.

resumo Objetivo: avaliar a efetividade da adrenalina na parada cardíaca e seu efeito na sobrevivência e no estado neurológico. Métodos: revisão sistemática da literatura científica com meta-análise utilizando um modelo de efeitos aleatórios. Revisão em Medline, Embase e Cochrane, desde 2005 até 2015 de ensaios clínicos e estudos observacionais. Resultados: observou-se aumento nas taxas de retorno de circulação espontânea com a administração de adrenalina (OR 2,02; 95% IC 1,49-2,75; I2=95%) comparadas com a não administração de adrenalina. A meta-análise mostrou um aumento da sobrevivência na alta ou depois de 30 dias da administração de adrenalina (OR 1,23; 95% IC 1,05-1,44; I2=83%). Quando estratificados por ritmos desfibrilháveis e não desfibrilháveis apareceu um aumento da sobrevivência nos ritmos não desfibrilháveis (OR 1,52; 95% IC 1,29-1,78; I2=42%). Também observou-se um incremento de sobrevivência na alta ou depois de 30 dias, quando administrada a adrenalina antes de 10 minutos, isto comparado com administração tardia (OR 2,03; 95% IC 1,77-2,32; I2=0%). Conclusão: a administração de adrenalina parece incrementar a taxa de retorno da circulação espontânea, mas não se tem encontrado um efeito positivo nas taxas de sobrevivência nem nas taxas de pacientes com estado neurológico favorável, em comparação com outras terapias.

resumen Objetivo: evaluar la efectividad de la adrenalina en el paro cardíaco y su efecto en la supervivencia y en el estado neurológico. Métodos: revisión sistemática de la literatura científica con metaanálisis utilizando un modelo de efectos aleatorios. Revisión en Medline, Embase y Cochrane, desde 2005 hasta 2015, de ensayos clínicos y estudios observacionales. Resultados: se observó aumento en las tasas de retorno de circulación espontánea cuando administrada adrenalina (OR 2,02; 95% IC 1,49-2,75; I2=95%) comparada con la no administración de adrenalina. El metaanálisis mostró un aumento de la supervivencia al alta hospitalaria o a los 30 días cuando administrada adrenalina (OR 1,23; 95% IC 1,05-1,44; I2=83%). La estratificación por ritmos desfibrilables y no desfibrilables mostró un aumento de la supervivencia en ritmos no desfibrilables (OR 1,52; 95% IC 1,29-1,78; I2=42%). También, se observó un incremento en la supervivencia al alta hospitalaria o a los 30 días en la administración de adrenalina antes de 10 minutos comparada con la administración tardía (OR 2,03; 95% IC 1,77-2,32; I2=0%). Conclusión: la administración de adrenalina parece incrementar la tasa de retorno de circulación espontánea, pero no se ha encontrado un efecto positivo en tasas de supervivencia ni en tasas de pacientes con estado neurológico favorable, en comparación con otras terapias.