Impact of the use of multiplex PCR on etiological diagnosis and treatment of acute respiratory infections in a private hospital of the north of the country.

BACKGROUND AND OBJECTIVE: Diseases of the respiratory system represent one of the leading causes of medical care and antibiotic prescriptions. Currently, new technologies are used for the diagnosis of respiratory diseases of viral origin, such as the FilmArray Respiratory Panel®, approved in 2012 by the FDA. The purpose of this study was to identify the correlation between the diagnosis and treatment of respiratory tract infections and the result of the polymerase chain reaction test for respiratory viruses. MATERIAL AND METHODS: The study is of a retrospective, cross-sectional, descriptive type. One-hundred and thirty-four patients who underwent a viral panel for respiratory viruses, which was positive for one or more viruses, were included. For all cases, the positive results of said test and the treatment received by patients were analyzed. RESULTS: Of the patients who underwent nasopharyngeal aspirate during hospitalization, 58 % received antibiotic treatment at admission, 13 % received combined treatment (antibiotic + antiviral), 27 % of the patients received symptomatic treatment since admission and 2 % did it with antivirals. After receiving a positive result for respiratory viruses, 38 % continued with antibiotics, 30 % with antibiotics and antivirals, 13.8 % were managed only with antivirals and 18.2 % with symptomatic treatment. CONCLUSION: Despite the global alert regarding antimicrobial resistance, patients continue to be treated with antibiotics, due to a situation that we ignore, but that is believed to be influenced by several factors.

ANTECEDENTES Y OBJETIVO: Las enfermedades del sistema respiratorio son causa frecuente de prescripción de antibióticos. Actualmente se emplean nuevas tecnologías para su diagnóstico como el FilmArray Respiratory Panel. El objetivo de este estudio es identificar la correlación entre el diagnóstico y tratamiento de infecciones de vías respiratorias con el resultado de PCR para virus respiratorios. MATERIAL Y MÉTODOS: Estudio descriptivo, transversal, retrospectivo, se incluyeron 134 pacientes atendidos en el Hospital Christus Muguerza en Saltillo, Coahuila. Para todos los casos se analizaron los resultados del panel y el tratamiento que recibieron los pacientes. RESULTADOS: El 58 % recibió tratamiento antibiótico a su ingreso, el 13 % tratamiento combinado (antibiótico + antiviral), 27 % recibió tratamiento sintomático y el 2 % fue tratado con antiviral de primera instancia. Posterior al resultado el 38 % continuó con antibiótico, el 30 % con antibiótico y antiviral, 13.8 % se manejó con antiviral y el 18.2 % con tratamiento sintomático. CONCLUSIÓN: A pesar de la alerta mundial por la resistencia a los antimicrobianos se sigue tratando a los pacientes con antibióticos, por una situación que se cree está influenciada por varios factores.

Respiratory infections and coinfections: geographical and population patterns.

INTRODUCTION: Acute respiratory infections are the second cause of mortality in children younger than five years, with 150.7 million episodes per year. Human orthopneumovirus (hOPV) and metapneumovirus (hMPV) are the first and second causes of bronchiolitis; type 2 human orthorubulavirus (hORUV) has been associated with pneumonia in immunocompromised patients. OBJECTIVE: To define hOPV, hMPV and hORUV geographical distribution and circulation patterns. METHOD: An observational, prospective cross-sectional pilot study was carried out. Two-hundred viral strains obtained from pediatric patients were genotyped by endpoint reverse transcription polymerase chain reaction (RT-PCR). RESULTS: One-hundred and eighty-six positive samples were typed: 84 hOPV, 43 hMPV, two hORUV and 57 co-infection specimens. Geographical distribution was plotted. hMPV, hOPV, and hORUV cumulative incidences were 0.215, 0.42, and 0.01, respectively. Cumulative incidence of hMPV-hORUV and hMPV-hOPV coinfection was 0.015 and 0.23; for hOPV-hMPV-hORUV, 0.035; and for hORUV-hOPV, 0.005. The largest number of positive cases of circulating or co-circulating viruses occurred between January and March. CONCLUSIONS: This study successfully identified circulation and geographical distribution patterns of the different viruses, as well as of viral co-infections.

INTRODUCCIÓN: Las infecciones respiratorias agudas constituyen la segunda causa de mortalidad en los niños menores de cinco años, con 150.7 millones de episodios anuales. Entre los principales agentes etiológicos están Orthopneumovirus (hOPV) y metapneumovirus (hMPV) humanos como primera y segunda causa de bronquiolitis, respectivamente; Orthorubulavirus humano tipo 2 (hORUV) se ha asociado a neumonía en pacientes inmunocomprometidos. OBJETIVO: Definir patrones de distribución geográfica y de circulación de hOPV, hMPV y hORUV. MÉTODO: Se llevó a cabo un estudio piloto transversal prospectivo observacional. Se genotipificaron 200 aislamientos virales de pacientes pediátricos mediante transcripción inversa seguida de reacción en cadena de la polimerasa en punto final (RT-PCR). RESULTADOS: Se tipificaron 186 muestras positivas: 84 de hOPV, 43 de hMPV, dos de hORUV y 57 de coinfecciones. Se trazó la distribución geográfica. Las incidencias acumuladas de hMPV, hOPV y hORUV fueron de 0.215, 0.42 y 0.01, respectivamente. Las incidencias acumuladas de la coinfección de hMPV-hORUV y hMPV-hOPV fueron de 0.015 y 0.23; de hOPV-hMPV-hORUV, de 0.035; y de hORUV-hOPV, de 0.005. El mayor número de casos positivos de virus circulantes o cocirculantes se presentó entre enero y marzo. CONCLUSIONES: Fue posible identificar patrones de circulación y distribución geográfica de los diferentes virus, así como de las coinfecciones virales.

[Detección y caracterización molecular de virus respiratorios causantes de infección respiratoria aguda en población adulta].

INTRODUCTION: Acute respiratory infections are one of the main causes of morbidity and mortality in older adults and patients with chronic diseases. Among the responsible etiological agents are human respiratory viruses, such as: respiratory syncytial virus, parainfluenza virus and metapneumovirus. OBJECTIVE: To carry out a differential diagnostic study of respiratory viruses circulating and co-circulating in an adult population. METHODS: A pilot study was conducted in patients older than 18 years, who presented signs and symptoms suggestive of acute respiratory infection and whose clinical picture did not exceed 15 days of evolution; end-point polymerase chain reaction assays were performed with the use of specific oligonucleotides for molecular diagnosis. RESULTS: 72 specimens of patients with an age of 51.33 ± 19.33 years, with a predominance of females (4.5:1); original inhabitants of Mexico City; only 22 were positive for respiratory viruses, being mostly metapneumovirus infections. CONCLUSIONS: The knowledge of the circulating viral strains in the population will allow to determine changes that can declare an epidemiological alert leading to the best decision making for the benefit of the patients.

INTRODUCCIÓN: Las infecciones respiratorias agudas son una de las principales causas de morbimortalidad en adultos mayores y pacientes con enfermedades crónicas. Dentro de los agentes etiológicos responsables se encuentran los virus respiratorios humanos, tales como: virus sincitial respiratorio, virus parainfluenza y metapneumovirus. OBJETIVO: Realizar un estudio de diagnóstico diferencial de virus respiratorios que circulan y cocirculan en una población adulta. MÉTODO: Se realizó un estudio tipo piloto en pacientes mayores de 18 años, que presentaron signos y síntomas sugestivos de infección respiratoria aguda y cuyo cuadro clínico no sobrepasara los 15 días de evolución; se realizaron ensayos de reacción en cadena de la polimerasa de punto final con el uso de oligonucleótidos específicos para el diagnóstico molecular. RESULTADOS: Se tipificaron 72 especímenes de pacientes con una edad de 51.33 ± 19.33 años, con predominio del sexo femenino (4.5:1); originarios en su totalidad de la Ciudad de México; solo 22 fueron positivos para virus respiratorios, siendo en su mayoría infecciones por metapneumovirus. CONCLUSIONES: El conocimiento de las cepas virales circulantes en la población permitirá determinar cambios que puedan declarar una alerta epidemiológica llevando a la mejor toma de decisiones en beneficio de los pacientes.

[Recommendations for the use of rapid diagnosis techniques in respiratory infections in primary care]. / Recomendaciones de utilización de técnicas de diagnóstico rápido en infecciones respiratorias en atención primaria.

Respiratory tract infections rank first as causes of adult and paediatric infectious morbidity in primary care in Spain. These infections are usually self-limiting and are mainly caused by viruses. However, a high percentage of unnecessary antibiotic prescription is reported. Point-of-care tests are biomedical tests, which can be used near the patient, without interference of a laboratory. The use of these tests, many of which have been recently developed, is rapidly increasing in general practice. Notwithstanding, we must mull over whether they always contribute to an effective and high-quality diagnostic process by primary care clinicians. We present a set of criteria that can be used by clinicians and discuss the pros and cons of the instruments available for the management of respiratory tract infections and how to use them appropriately.

[Molecular diagnostic methods of respiratory infections. Has the scheme diagnosis changed?]. / Métodos moleculares de diagnóstico de infecciones respiratorias. ¿Ha cambiado el esquema diagnóstico?

Lower respiratory tract infections remain one of the most common causes of mortality worldwide, which is why early diagnosis is crucial. Traditionally the microbiological diagnosis of these infections has been based on conventional methods including culture on artificial media for isolation of bacteria and fungi and cell cultures for virus and antibody or antigen detection using antigen-antibody reactions. The main drawback of the above mentioned methods is the time needed for an etiological diagnosis of the infection. The techniques based on molecular biology have drawn much attention in recent decades as tools for rapid diagnosis of infections. Some techniques are very expensive, especially those that can detect various microorganisms in the same reaction, therefore the question that arises is whether the cost of such testing is justified by the information obtained and by the clinical impact that its implementation will determine. In this article we make a review of the various techniques of molecular biology applied to the diagnosis of pneumonia and focus primarily on analysing the impact they may have on the management of patients with acute respiratory tract infections.

Non-clinical interventions for acute respiratory infections and diarrhoeal diseases among young children in developing countries.

OBJECTIVE: To assess the effectiveness of non-clinical interventions against acute respiratory infections and diarrhoeal diseases among young children in developing countries. METHODS: Experimental and observational impact studies of non-clinical interventions aimed at reducing the incidence of mortality and/or morbidity among children due to acute respiratory infections and/or diarrhoeal diseases were reviewed, following the Cochrane Handbook for Systematic Reviews of Interventions and the PRISMA guidelines. RESULTS: Enhancing resources and/or infrastructure, and promoting behavioural changes, are effective policy strategies to reduce child morbidity and mortality due to diarrhoeal disease and acute respiratory infections in developing countries. Interventions targeting diarrhoeal incidence generally demonstrated a reduction, ranging from 18.3% to 61%. The wide range of impact size reflects the diverse design features of policies and the heterogeneity of socio-economic environments in which these policies were implemented. Sanitation promotion at household level seems to have a greater protective effect for small children. CONCLUSION: Public investment in sanitation and hygiene, water supply and quality and the provision of medical equipment that detect symptoms of childhood diseases, in combination of training and education for medical workers, are effective policy strategies to reduce diarrhoeal diseases and acute respiratory infections. More research is needed in the countries that are most affected by childhood diseases. There is a need for disaggregation of analysis by age cohorts, as impact effectiveness of policies depends on children's age.

[Clinical and epidemiological differences between Bordetella pertussis and respiratory syncytial virus infections in infants: a matched case control study]. / Diferencias clínicas y epidemiológicas entre las infecciones por Bordetella pertussis y por virus respiratorio sincitial en lactantes: estudio de casos controles emparejados.

INTRODUCTION: An increase in cases of pertussis, mainly in young infants, has been reported in the last few years. The clinical presentation of this disease is very similar to that produced by respiratory syncytial virus (RSV), which makes the diagnosis difficult. OBJECTIVE: To compare the clinical and epidemiological characteristics between Bordetella pertussis and RSV infections in infants admitted to hospital. MATERIAL AND METHODS: An analytical matched case-control study was conducted during the period 2008-2011. Cases were defined as infants admitted with pertussis confirmed by PCR in nasopharyngeal aspirate. Each case was matched by age, sex and date of admission to two controls defined as patients with RSV infection detected by immunochromatography in nasal aspirate. Demographic, clinical, laboratory data were compared. RESULTS: Seventy eight patients (26 cases of pertussis and 52 controls RSV+) were included. Sociodemographic characteristics were similar in both groups. Cases had more days of symptoms prior to admission, longer hospital stays, and increased frequency of epidemic family environment. Apnoea and cyanosis were more frequent. Cases of pertussis were more likely to have apnoea, cyanosis, and lymphocytosis while RSV infections had more frequent fever, vomiting and respiratory distress. CONCLUSIONS: The clinical presentations of pertussis and RSV infection are similar, but there are some characteristics that can help to distinguish between them.

Characteristics of tracheostomized patients followed up by a Palliative Care and Complex Chronic Patient Service.

INTRODUCTION AND OBJECTIVES: In recent years, there has been an increase in the number of children with tracheostomies. The objective was to describe the characteristics of paediatric patients with a tracheostomy followed up by the Department of Palliative Care and Chronic Medically Complex Illness (DPCCMCI) of a tertiary care hospital. METHODS: Single-centre retrospective observational study in patients aged less than 18 years with a tracheostomy followed up by the PCCCPS of a tertiary care hospital (November 2020-June 2022). We analysed epidemiological, clinical, microbiological and social data by reviewing the health records. RESULTS: The sample included 44 tracheostomized patients. The most frequent underlying disease was acquired upper airway disease (20.5%). The most common indication for tracheostomy was upper airway obstruction (66%). Bacterial isolates were detected in 84% of the tracheal aspirates, among which P. aeruginosa was the most frequent (56.8%). The most frequently prescribed antibiotic was ciprofloxacin (84%). In addition, 18.1% of the patients received at least 1 course of intravenous antibiotherapy and 29.5% received more than 3 systemic antibiotic regimens in the past 20 months. Fifty-nine percent of the children were schooled: 38.6% attended a regular school, 15.9% a special needs school and 4.5% were home-schooled. We identified social difficulties in 53.7%. Also, 22.7% of the families received financial support to care for a child with severe illness. CONCLUSIONS: Because of the complexity of caring for tracheostomized children, integral and coordinated management is essential. Schooling is possible and safe if caregivers are trained.

Long-term treatment with nebulized colistin in oncological patients with recurrent respiratory infections.

OBJECTIVES: To assess the efficacy of long-term treatment with nebulized colistin in reducing the number of respiratory infections, emergency consultations and hospitalizations in oncological patients. METHODS: A retrospective, observational, single-centre study including patients with solid or haematologic malignancies, or pulmonary GVHD after HSTC who received treatment with nebulized colistin for at least six-months to prevent recurrent respiratory infections (July 2010 to June 2017). RESULTS: Twelve patients were included (median age: 54.4, range: 23-85), 7 with solid malignancies and 5 with haematologic malignancies (2 with pulmonary GVHD). Pseudomonas aeruginosa was the most frequent microorganism in sputum cultures (11/12 patients), all strains were susceptible to colistin. There was a statistically significant reduction (p=0.01) in respiratory infections in the six-month period after starting colistin (median: 1, range: 0-4) compared to the six-month period before (median: 4, range: 1-8). There was also a reduction in emergency consultations (precolistin: median: 1.50, range: 0-3; postcolistin: median: 0, range: 0-3) and hospitalizations (precolistin: median: 1.50, range: 0-3; postcolistin: median: 0, range: 0-3) due to respiratory infections. No colistin-resistant strains were identified. CONCLUSIONS: Long-term treatment with nebulized colistin may be useful to reduce the number of exacerbations in oncological patients with recurrent respiratory infections.

Coinfections of influenza and other respiratory viruses are associated to children.

INTRODUCTION: Coinfections of influenza and other respiratory viruses (ORVs) are frequent in the epidemic season. The aim of this study was to examine the demographic and virological variables associated with coinfections by influenza and ORVs. MATERIALS AND METHODS: We analysed respiratory samples of patients with laboratory-confirmed influenza using molecular diagnostic methods obtained in 8 consecutive influenza seasons (2011-2012 to 2018-2019). We analysed data focusing on different variables: age, sex, type of patient (hospitalized/sentinel) and detected type/subtype of influenza. RESULTS: Coinfections of influenza and ORVs were detected in 17.8% of influenza-positive samples. The probability of detecting coinfection was significantly higher in young children (0-4 years; OR: 2.7; 95% CI: 2.2-3.4), children (5-14 years; OR: 1.6; 95% CI: 1.2-2.1) and patients infected with the A(H3N2) subtype (OR: 1.4; 95% CI: 1.14-1.79). Also, we found a significantly higher frequency of coinfections involving influenza and 2 or more other respiratory viruses in young children (0-4 years; OR: 0.5; 95% CI: 0.32-0.8), adults (40-64 years; OR: 0.5; 95% CI: 0.3-0.9) and women (OR: 0.7; 95% CI: 0.5-0.9). DISCUSSION: These results show that coinfections of influenza and ORVs are more frequent in young children and children, and in cases involving the A(H3N2) influenza subtype. Our findings can be useful to guide the use of multiplex diagnostic methods in laboratories with limited resources.

[Coinfections of influenza and other respiratory viruses are associated to children]. / Las coinfecciones entre gripe y otros virus respiratorios están asociadas a los niños.

INTRODUCTION: Coinfections of influenza and other respiratory viruses (ORVs) are frequent in the epidemic season. The aim of this study was to examine the demographic and virological variables associated with coinfections by influenza and ORVs. MATERIALS AND METHODS: We analysed respiratory samples of patients with laboratory-confirmed influenza using molecular diagnostic methods obtained in 8 consecutive influenza seasons (2011-2012 to 2018-2019). We analysed data focusing on different variables: age, sex, type of patient (hospitalized/sentinel) and detected type/subtype of influenza. RESULTS: Coinfections of influenza and ORVs were detected in 17.8% of influenza-positive samples. The probability of detecting coinfection was significantly higher in young children (0-4 years; OR: 2.7; 95% CI: 2.2-3.4), children (5-14 years; OR: 1.6; 95% CI: 1.2-2.1) and patients infected with the A(H3N2) subtype (OR: 1.4; 95% CI: 1.14-1.79). Also, we found a significantly higher frequency of coinfections involving influenza and 2 or more other respiratory viruses in young children (0-4 years; OR: 0.5; 95% CI: 0.32-0.8), adults (40-64 years; OR: 0.5; 95% CI: 0.3-0.9) and women (OR: 0.7; 95% CI: 0.5-0.9). DISCUSSION: These results show that coinfections of influenza and ORVs are more frequent in young children and children, and in cases involving the A(H3N2) influenza subtype. Our findings can be useful to guide the use of multiplex diagnostic methods in laboratories with limited resources.

[Thermal comfort and the risk of respiratory infections in older adults in the Peruvian highlands]. / Confort térmico y el riesgo de infecciones respiratorias en los adultos mayores en la sierra rural del Perú.

The objective is to evaluate thermal comfort in the rural highlands of Peru and determine if thermal conditions influence the risk of respiratory infections. The probit regression model is used for this, with the unit of analysis being adults over 60 years of age. The information source is the data from the National Household Survey and the National Service of Meteorology and Hydrology of Peru. In addition, it was possible to monitor the temperature and the interior relative humidity of 4types of bedrooms with a thermo-hygrometer and compared it with the desired thermal comfort index criterion. The results show that if the air temperature drops on average by one degree (1° C) in the area of residence, the probability of risk of respiratory infections in older adults increases by 0.18, although the relative humidity and the wind speed were not statistically significant at 1% significance level. Finally, the 4types of bedrooms evaluated lacked the desired thermal comfort and increased the risk of acquiring respiratory infections.

Características de los pacientes traqueostomizados en seguimiento por un Servicio de Atención Paliativa y de Paciente Crónico Complejo (SAPPCC) / Characteristics of tracheostomized patients followed up by a Palliative Care and Complex Chronic Patient Service

Introducción y objetivos: En los últimos años se ha objetivado un incremento de niños portadores de traqueostomía. El objetivo del estudio es describir las características de los pacientes pediátricos traqueostomizados en seguimiento por el SAPPCC de un hospital de tercer nivel.MétodosEstudio unicéntrico, observacional y retrospectivo que incluyó pacientes ≤18años portadores de traqueostomía atendidos por el SAPPCC de un hospital de tercer nivel (noviembre de 2020-junio de 2022). Se analizaron datos epidemiológicos, clínicos, microbiológicos y sociales mediante la revisión de la historia clínica.ResultadosSe incluyeron 44 pacientes traqueostomizados. La patología de base más frecuente fue la patología de vía aérea superior adquirida (20,5%), siendo la obstrucción de vía aérea superior (66%) la indicación más frecuente de traqueostomía. El 84% presentaron aislamientos bacterianos en aspirado traqueal, y Pseudomonas aeruginosa (56,8%) fue el microorganismo más frecuentemente aislado. El antibiótico sistémico más prescrito fue ciprofloxacino (84%). El 18,1% de los pacientes recibieron como mínimo una tanda de antibioterapia intravenosa y el 29,5% recibieron más de tres pautas de antibiótico sistémico en los últimos 20meses. El 59% de los niños estaban escolarizados: el 38,6% en escuela ordinaria, el 15,9% en escuela de educación especial y el 4,5% en domicilio. Se identificó familia en crisis en el 53,7% de los pacientes, y el 22,7% de las familias disponían de la prestación por cuidado de menores con enfermedad grave.ConclusionesDada la complejidad de los niños traqueostomizados, es fundamental un manejo integral y coordinado. La escolarización es posible y segura si se capacita a sus cuidadores/enfermeras escolares. (AU)

Introduction and objectives: In recent years, there has been an increase in the number of children with tracheostomies. The objective was to describe the characteristics of paediatric patients with a tracheostomy followed up by the palliative care and complex chronic patient service (PCCCPS) of a tertiary care hospital.MethodsSingle-centre retrospective observational study in patients aged less than 18years with a tracheostomy manage by the PCCCPS of a tertiary care hospital (November 2020-June 2022). We analysed epidemiological, clinical, microbiological and social data by reviewing the health records.ResultsThe sample included 44 tracheostomized patients. The most frequent underlying disease was acquired upper airway disease (20.5%). The most common indication for tracheostomy was upper airway obstruction (66%). Bacterial isolates were detected in 84% of the tracheal aspirates, among which Pseudomonas aeruginosa was most frequent (56.8%). The most frequently prescribed antibiotic was ciprofloxacin (84%). In addition, 18.1% of the patients received at least one course of intravenous antibiotherapy and 29.5% received more than three systemic antibiotic regimens in the past 20months. Fifty-nine percent of the children were schooled: 38.6% attended a regular school, 15.9% a special needs school and 4.5% were home-schooled. We identified social difficulties in 53.7%. Also, 22.7% of the families received financial support to care for a child with severe illness.ConclusionsBecause of the complexity of caring for tracheostomized children, integral and coordinated management is essential. Schooling is possible and safe if caregivers are trained. (AU)

Manifestaciones clínicas y radiológicas de la Aspergilosis Pulmonar: Informe de tres casos / Pulmonary aspergillosis, an approach to clinical and radiological manifestations. Report of three cases

RESUMEN La aspergilosis pulmonar, causada por el hongo oportunista Aspergillus, afecta principalmente a individuos inmunocomprometidos. Este reporte presenta tres casos: Una mujer de 18 años con leucemia aguda desarrolló dificultad respiratoria y patrones bilaterales de "árbol en brote" en la tomografía computarizada (TC). A pesar del tratamiento con voriconazol, falleció debido a insuficiencia respiratoria. Una mujer de 58 años con diabetes y EPOC presentó disnea y hemoptisis. Las imágenes revelaron una lesión cavitada, confirmando un aspergiloma. Se consideró la cirugía debido a la hemoptisis activa. Una mujer de 41 años con antecedentes de tuberculosis presentó fiebre y síntomas respiratorios. La TC mostró lesiones cavitadas y bronquiectasias, confirmando aspergilosis crónica. Respondió bien al voriconazol. Estos casos destacan la variabilidad en la aspergilosis pulmonar y subrayan la importancia de un diagnóstico y tratamiento oportunos para mejorar los resultados en los pacientes.

ABSTRACT Pulmonary aspergillosis, caused by the opportunistic fungus Aspergillus, primarily affects immunocompromised individuals. This report presents three cases: An 18-year-old female with acute leukemia developed respiratory distress and bilateral "tree-in-bud" patterns on CT. Despite voriconazole treatment, she succumbed to respiratory failure. A 58-year-old female with diabetes and COPD had dyspnea and hemoptysis. Imaging revealed a cavitated lesion, confirming aspergilloma. Surgery was considered due to active hemoptysis. A 41-year-old female with a history of tuberculosis presented with fever and respiratory symptoms. CT showed cavitated lesions and bronchiectasis, confirming chronic aspergillosis. She responded well to voriconazole. These cases highlight the variability in pulmonary aspergillosis and underscore the importance of timely diagnosis and treatment to improve patient outcomes.

Consumption of antimicrobials during the period of the COVID-19 pandemic in specific macro-regions of Brazil / Consumo de antimicrobianos durante o período de pandemia de COVID-19 em macrorregiões específicas do Brasil / Consumo de antimicrobianos durante el período de la pandemia de COVID-19 en macrorregiones específicas de Brasil

Background and Objectives: The main objective was to analyze the consumption of antimicrobials (ATMs) subjected to prescription retention, and with indication for the treatment of respiratory infections in Brazil, from 2014 to 2021. Methods: This is an ecological study of mixed design. Secondary data was obtained from the National System for the Management of Controlled Products (SNGPC). Data was presented following the equation: number of total consumption of ATMs for each macro-region of Brazil by year or trimester / number of residents for each macro-region per year *1.000 inhabitants. Annual data was analyzed by Prais-Winsten, and quarterly data was analyzed by automatic forward stepwise regression. Results: The Southern region showed the highest mean rates of consumption when compared to the other macro-regions. For annual analysis, the proportion of stability, increase and decrease of consumption of ATMs was similar among macro-regions. The quarterly period registered an increase in the consumption of Amoxicillin, Amoxicillin+Clavulanate, Azithromycin and Cephalexin altogether, in the Southern, Southeastern and Northern regions. Conclusion: Our data reveals an increased consumption of some ATMs during the pandemic period in specific macro-regions of Brazil. The five macro regions have shown different patterns of ATMs consumption.(AU)

Justificativa e Objetivos: O objetivo principal foi analisar o consumo de antimicrobianos (ATMs) sujeito a retenção de receita e com indicações para tratamento de infecções respiratórias no Brasil de 2014 até 2021. Métodos: Trata-se de um estudo ecológico de desenho misto. Dados secundários foram obtidos do Sistema Nacional de Gerenciamento de Produtos Controlados (SNGPC). Dados foram apresentados conforme a seguinte equação: número total de consumo de ATMs por cada macrorregião do Brasil por ano ou trimestre/ número de residentes por cada macrorregião do Brasil por ano *1.000 habitantes. Dados anuais foram por Prais-Winsten, e dados trimestrais por regressão automática passo-a-passo. Resultados: Região Sul apresentou maiores taxas médias de consumo em comparação às demais macrorregiões. Para análise anual, a proporção de estabilidade, aumento e diminuição dos ATMs foi similar entre as macrorregiões. O trimestre registrou aumento no consumo de Amoxicilina, Amoxicilina+Clavulanato, Azitromicina e Cefalexina, juntas, nas regiões Sul, Sudeste e Norte. Conclusão: Nossos dados revelam um aumento no consumo de alguns ATMs durante o período de pandemia em macrorregiões específicas do Brasil, as cinco macrorregiões apresentaram padrões diferentes de consumo de ATMs.(AU)

Justificación y Objetivos: El objetivo principal fue analizar el consumo de antimicrobianos (ATMs) sujetos a retención de ingresos con indicaciones para el tratamiento de infecciones respiratorias en Brasil de 2014 a 2021. Métodos: Se trata de un estudio ecológico de diseño mixto. Datos secundarios obtenidos del Sistema Nacional de Gestión de Productos Controlados (SNGPC). Los datos fueron presentados siguiendo la ecuación: número de consumo total de cajeros automáticos para cada macro región de Brasil por año o trimestre / número de residentes para cada macro región por año *1.000 habitantes. Los datos anuales fueron analizados por Prais-Winsten, y trimestralmente analizados por regresión paso a paso automática hacia adelante. Resultados: La región Sur mostró las mayores tasas medias de consumo en comparación con las demás macrorregiones. Para el análisis anual, la proporción de estabilidad, aumento y disminución de ATMs fue similar entre las macrorregiones. En el trimestre se registró aumento en el consumo de Amoxicilina, Amoxicilina+Clavulanato, Azitromicina y Cefalexina, en conjunto, en las regiones Sur, Sudeste y Norte. Conclusión: Nuestros datos revelan un mayor consumo de algunos ATMs durante el período de la pandemia en macro regiones específicas de Brasil, las cinco macro regiones han mostrado diferentes patrones de consumo de ATMs.(AU)

La administración prolongada de probióticos podría disminuir la frecuencia de infecciones respiratorias / Prolonged administration of probiotics may decrease the frequency of respiratory infections

Los probióticos pueden reducir la cantidad de niños diagnosticados con al menos una infección respiratoria de vías superiores (IVRS) en aproximadamente un 21%; probablemente, pueden reducir el número de niños diagnosticados con al menos tres IVRS en alrededor del 38%; pueden reducir la tasa de incidencia (número de casos nuevos durante un periodo de tiempo específico) de IVRS en alrededor del 18%; probablemente, pueden reducir el número de niños que usaron antibióticos para las IVRS en aproximadamente un 22%; y es posible que no aumenten la cantidad de personas que experimentaron efectos secundarios (cualquier daño). La evidencia que muestra una disminución en el número de niños que faltan a la guardería o a la escuela debido a las IVRS agudas con probióticos es muy incierta (AU)

Probiotics can reduce the number of children diagnosed with at least one upper respiratory infection (URTI) by approximately 21%; they can probably reduce the number of children diagnosed with at least three IVRS by about 38%; they can reduce the incidence rate (number of new cases during a specified period of time) of URTIs by about 18%; they can probably reduce the number of children using antibiotics for URTIs by about 22%; and the number of people experiencing side effects (any harm) may not increase. The evidence showing a decrease in the number of children missing daycare or school due to acute URTIs with probiotics is very uncertain. (AU)

[Exposure to nitrogen dioxide and respiratory health at 2 years in the INMA-Valencia cohort]. / Exposición ambiental a dióxido de nitrógeno y salud respiratoria a los 2 años en la Cohorte INMA-Valencia.

OBJECTIVE: To analyze the association between exposure to nitrogen dioxide (NO2) during pregnancy and the postnatal period up to the age of 2 years old and the incidence of respiratory problems in children from the INMA-Valencia cohort. METHODS: The study population included 624 children from the INMA-Valencia cohort. Individual exposure to NO2 was estimated in different environments outside the home during pregnancy and up to the age of 2 using empirical measurement and data from geo-statistical methods. Respiratory symptoms were obtained from a questionnaire applied at the age of two. The association between NO2 exposure and respiratory symptoms was performed using multivariate logistic regression. RESULTS: The cumulative incidence was 16.3% for persistent cough, 34.9% for wheezing and 27.6% for lower respiratory tract infections. No association was found between respiratory symptoms and exposure to NO2 in any of the children. However an association between NO2 exposure and persistent cough was found at two years of life in the children with a parental history of allergy. CONCLUSION: NO2 exposure would lead to persistent cough in children with a parental history of allergies.

Beneficios que reciben los pacientes asmáticos tras la aplicación de un tratamiento fisioterapéutico y rehabilitador

El asma bronquial sigue siendo la enfermedad crónica más frecuente en la infancia. Su prevalencia continúa aumentando a pesar de que en la actualidad se disponen de eficaces manuales terapéuticos para el correcto manejo de los principales síntomas de la enfermedad. El tratamiento no farmacológico de este padecimiento se fundamenta en tres pilares esenciales: la educación sobre la enfermedad, las guías para profesionales y pacientes y la fisioterapia respiratoria. Los pacientes que tienen un tratamiento fisioterapéutico y rehabilitador de manera habitual, tienen una mejoría significativa en el control del asma, especialmente si estos se practican bajo la supervisión de un fisioterapeuta. Los beneficios que los pacientes asmáticos logran con la fisioterapia y la rehabilitación son numerosos y uno de los efectos más importante es el impacto positivo sobre la calidad de vida.

Bronchial asthma continues to be the most common chronic disease in childhood. Its prevalence continues to increase despite the fact that effective therapeutic manuals are currently available for the correct management of the main symptoms of the disease. The non-pharmacological treatment of this condition is based on three pillars: education about the disease, guides for professionals and patients, and respiratory physiotherapy. Patients who have regular physiotherapy and rehabilitation treatment have a significant improvement in asthma control, especially if these are practiced under the supervision of a physiotherapist. The benefits that asthmatic patients achieve with physiotherapy and rehabilitation are numerous and one of the most important effects is the positive impact on quality of life.

Respiratory infections due to nontuberculous mycobacterias. / Infecciones respiratorias por micobacterias no tuberculosas.

The most common infections caused by nontuberculous mycobacteria (NTM) are lung infections. The microorganisms causing these infections most frequently are Mycobacterium avium complex, Mycobacterium kansasii and Mycobacterium abscessus complex. Their incidence has increased in the last three decades. After identifying an NTM in the respiratory tract, clinical and radiological aspects must be considered to determine if isolations are clinically relevant. Predisposing conditions that could contribute to infection must also be investigated. Pulmonary disease due to NTM is presented in three clinical forms: a) pneumonitis due to hypersensitivity; b) fibrocavitary form; and c) nodular-bronchiectasic. The diagnosis of respiratory disease due to NTM does not make it obligatory to immediately initiate treatment. Before initiating the latter, other factors must be considered, such as age, comorbidities, life expectancy, due to the prolonged nature of treatments, with potential side effects and, in many cases, only a slight response to the treatment.

Usefulness of Ct value in acute respiratory infections caused by respiratory syncytial virus A and B and influenza virus A (H1N1)pdm09, A (H3N2) and B. / Utilidad del valor Ct en las infecciones respiratorias agudas causadas por el virus respiratorio sincitial A y B y los virus gripales A (H1N1)pdm09, A (H3N2) y B.

INTRODUCTION: Acute respiratory infections of viral cause are very frequent entities. The difficulty in evaluating the detection of a virus in these entities could be solved by determining the viral load. METHODS: A prospective study on the mean Ct value (cycle threshold value) detected against RSV-A, RSV-B and influenza A (H1N1)pdm09, A (H3N2) and B viruses in patients of different origin and age was performed. Detection was performed using a commercial molecular amplification (RT-PCR) technique. RESULTS: Different mean Ct values were detected for each virus. In RSV infections, no differences were observed between those caused by RSV-A or RSV-B in children. Depending on the patient's age, the only statistical significance was observed in those included in the 0-4 month groups for RSV-A and this group and the 5-12 months group for RSV-B (higher values). A lower viral load was detected in adult patients than in paediatric patients. In influenza infections, no statistical significance was observed in the mean values detected in patients from the Red Centinela («sentinel network¼, a Spanish network of doctors aimed at research and surveillance of diseases), those diagnosed in the adult emergency room or in hospital admissions. In the adult patients admitted to the ICU, only a slightly lower mean value was observed in those infected with influenza A (H1N1)pdm09, but without statistical significance. There were no patients admitted to the ICU with influenza B infection. CONCLUSION: The detection of viral load could be a good tool for the evaluation, monitoring and prognosis of acute viral respiratory infections. With the exception of those caused by RSV, no significant differences were observed in influenza infections except in younger paediatric patients.