Percepción de los médicos residentes de Pediatría sobre el impacto de la pandemia por COVID-19 en su proceso formativo / Pediatric residents' perceptions about the impact of the COVID-19 pandemic on their training

Introducción. Las residencias médicas experimentaron modificaciones que pudieron afectar la formación académica durante la pandemia por COVID-19. Objetivos. Describir la percepción de residentes de Pediatría en relación con el impacto de la pandemia en su formación. Efectuar la adaptación transcultural y validación al idioma español del instrumento "COVID-19 Resident Education and Experience Survey". Materiales y métodos. Estudio observacional, transversal. Participaron residentes de Pediatría de distintos hospitales del país. Se utilizó la encuesta de Ostapenko y col. modificada. Se realizó el análisis descriptivo utilizando SPSS vs. 21. El proyecto fue aprobado por el Comité de Ética institucional. Resultados. Completaron la encuesta 127 residentes. La mayoría dedicaba más de 50 horas a actividades asistenciales antes y durante la pandemia. El 43,3 % (IC95% 35-52) dedicaba hasta 1 hora diaria al estudio individual previo a la pandemia, y un 63 % (IC95% 54,3-70,9) dedicaba ese tiempo durante la pandemia. El 75,6 % (IC95% 67,4-82,2) reportó que el tiempo previo dedicado a actividades académicas era al menos de 4 horas semanales, descendiendo al 41,7 % (IC95% 33,5-50,4) en la pandemia. Más del 60 % (IC95% 54,3-70,1) percibió que la pandemia perjudicó su formación para convertirse en especialista y el 93,7 % (IC95% 88,1-96,8), que su nivel de estrés se incrementó. Conclusiones. La cantidad de horas destinadas a actividades académicas fue percibida como menor durante la pandemia. La mayoría de los encuestados refirió que su nivel de estrés aumentó y que la pandemia perjudicó su formación para convertirse en especialista.

Introduction. Medical residency programs suffered changes that may have affected academic training during the COVID-19 pandemic. Objectives. To describe the perceptions of pediatric residents about the pandemic's impact on their education. To transculturally adapt and validate the COVID-19 Resident Education and Experience Survey into Spanish. Materials and methods. Observational, cross-sectional study. Participants were pediatric residents from hospitals across the country. The survey by Ostapenko et al. was used. A descriptive analysis was done using the SPSS software, version 21. The project was approved by the Institutional Ethics Committee. Results. The survey was completed by 127 residents. Most did more than 50 hours of health care activities before and during the pandemic. Also, 43.3% (95% CI: 35­52) spent at least 1 hour a day studying individually before the pandemic, while 63% (95% CI: 54.3­70.9) did so during the pandemic. In relation to the time spent doing academic work, 75.6% (95% CI: 67.4­82.2) reported that, before the pandemic, they spent at least 4 hours a week doing academic activities, dropping to 41.7% (95% CI: 33.5­50.4) during the pandemic. More than 60% (95% CI: 54.3­70.1) perceived that the pandemic impaired their training to become a specialist and 93.7% (95% CI: 88.1­96.8), that their stress levels increased. Conclusions. The perception was that participants spent less hours doing academic activities during the pandemic. Most surveyed participants mentioned that their stress levels increased and that the pandemic impaired their training to become a specialist.

Pediatric residents' perceptions about the impact of the COVID-19 pandemic on their training. / Percepción de los médicos residentes de Pediatría sobre el impacto de la pandemia por COVID-19 en su proceso formativo.

Introduction. Medical residency programs suffered changes that may have affected academic training during the COVID-19 pandemic. Objectives. To describe the perceptions of pediatric residents about the pandemic's impact on their education. To transculturally adapt and validate the COVID-19 Resident Education and Experience Survey into Spanish. Materials and methods. Observational, cross-sectional study. Participants were pediatric residents from hospitals across the country. The survey by Ostapenko et al. was used. A descriptive analysis was done using the SPSS software, version 21. The project was approved by the Institutional Ethics Committee. Results. The survey was completed by 127 residents. Most did more than 50 hours of health care activities before and during the pandemic. Also, 43.3% (95% CI: 35-52) spent at least 1 hour a day studying individually before the pandemic, while 63% (95% CI: 54.3-70.9) did so during the pandemic. In relation to the time spent doing academic work, 75.6% (95% CI: 67.4-82.2) reported that, before the pandemic, they spent at least 4 hours a week doing academic activities, dropping to 41.7% (95% CI: 33.5-50.4) during the pandemic. More than 60% (95% CI: 54.3-70.1) perceived that the pandemic impaired their training to become a specialist and 93.7% (95% CI: 88.1-96.8), that their stress levels increased. Conclusions. The perception was that participants spent less hours doing academic activities during the pandemic. Most surveyed participants mentioned that their stress levels increased and that the pandemic impaired their training to become a specialist.

Introducción. Las residencias médicas experimentaron modificaciones que pudieron afectar la formación académica durante la pandemia por COVID-19. Objetivos. Describir la percepción de residentes de Pediatría en relación con el impacto de la pandemia en su formación. Efectuar la adaptación transcultural y validación al idioma español del instrumento "COVID-19 Resident Education and Experience Survey". Materiales y métodos. Estudio observacional, transversal. Participaron residentes de Pediatría de distintos hospitales del país. Se utilizó la encuesta de Ostapenko y col. modificada. Se realizó el análisis descriptivo utilizando SPSS vs. 21. El proyecto fue aprobado por el Comité de Ética institucional. Resultados. Completaron la encuesta 127 residentes. La mayoría dedicaba más de 50 horas a actividades asistenciales antes y durante la pandemia. El 43,3 % (IC95% 35-52) dedicaba hasta 1 hora diaria al estudio individual previo a la pandemia, y un 63 % (IC95% 54,3-70,9) dedicaba ese tiempo durante la pandemia. El 75,6 % (IC95% 67,4-82,2) reportó que el tiempo previo dedicado a actividades académicas era al menos de 4 horas semanales, descendiendo al 41,7 % (IC95% 33,5-50,4) en la pandemia. Más del 60 % (IC95% 54,3-70,1) percibió que la pandemia perjudicó su formación para convertirse en especialista y el 93,7 % (IC95% 88,1-96,8), que su nivel de estrés se incrementó. Conclusiones. La cantidad de horas destinadas a actividades académicas fue percibida como menor durante la pandemia. La mayoría de los encuestados refirió que su nivel de estrés aumentó y que la pandemia perjudicó su formación para convertirse en especialista.

Evaluación de residentes de pediatría con una modalidad virtual durante la pandemia COVID 19: presentación de una experiencia / Using a virtual mode for the pediatric residents evaluation during the COVID 19 pandemic: report of an experience

El examen clínico objetivo estructurado (ECOE) es una herramienta válida para medir competencias clínicas. En el contexto de la pandemia por COVID-19 se debieron adaptar las evaluaciones, habitualmente presenciales, a un formato virtual. El objetivo de este artículo es comunicar la experiencia de utilizar una modalidad virtual del ECOE para residentes de primer año de pediatría durante la pandemia por COVID-19. El ECOE comprendió 12 estaciones utilizando casos simulados en línea y consultas virtuales a distancia. Participaron del ECOE 115 residentes, aprobaron 110 (95,7%) y solo 17 participantes aprobaron el 100% de las estaciones. Las estaciones con mejor rendimiento fueron las referidas a alimentación complementaria, abordaje del traumatismo encéfalo craneano, interpretación de resultados de laboratorio y de imágenes radiológicas. El menor rendimiento se observó en uso de equipo de protección personal y vacunas. La encuesta de satisfacción fue respondida por 80/115 participantes (69,5%). El 91% de los participantes encontró fácil de utilizar la plataforma virtual. La mayoría (73/80) consideró que los temas fueron acordes al nivel de formación. La estación de pautas madurativas fue identificada como la más difícil. El 57% refirió que el ECOE les resultó útil para identificar puntos débiles en su formación. La implementación de una modalidad virtual del ECOE fue posible y presentó buena aceptación de los participantes.

The objective structured clinical examination (OSCE) is a helpful tool for assessing clinical competencies. During the COVID-19 pandemic, assessments usually carried out in person had to be adapted to a virtual format. We aim to report our experience using a virtual OSCE administered to first-year pediatric residents during the COVID-19 pandemic. The OSCE included 12 stations, including online simulated cases and virtual remote consultations. In total 115 residents participated in the OSCE; 110 (95.7%) passed the test, but only 17 participants passed all stations. The stations with the highest performance were related to complementary feeding, management of traumatic head injury, interpretation of lab test results and imaging. The lowest performance was observed using personal protective equipment and checking vaccine schedules. The user satisfaction survey was completed by 80 out of 115 participants (69.5%); 91 % of the participants found the virtual platform easy to use. Most of the residents (73/80) considered the topics to be appropriate for their training level. The station related to child development guidelines was identified as the most challenging. 57% reported that the OSCE was helpful for identifying weaknesses in their training. Conclusion: the implementation of a virtual OSCE was feasible and it was well accepted by the participants.

Hyperuricemia: an unrecognized risk factor for kidney-related sequelae in children with hemolytic uremic syndrome.

BACKGROUND: Chronic kidney-related sequelae after STEC-HUS occur in 20-40% of patients. Hyperuricemia (HU) may cause acute and chronic toxicity involving the kidneys. We retrospectively assessed if there was an association between the presence of HU during the acute illness and that of kidney-related sequelae in children with STEC-HUS. METHODS: Children with STEC-HUS who had clinical and laboratory data at 2 years of follow-up were included in this case-control study. Univariate and multivariate analyses were performed between patients with (cases) or without (controls) kidney-related sequelae to identify factors associated with outcomes, including different measures of serum uric acid (sUA) (baseline level, peak, and duration of HU). HU was defined as sUA > 8 mg/dL. RESULTS: Of 86 patients included, 77.9% had HU. Patients with sequelae (n = 41) had a higher prevalence of HU (41/41 vs. 26/45, p < 0.01), higher baseline leukocyte count, serum creatinine (sCr), and sUA levels as well as lower sodium than controls. During hospitalization, cases also had higher sCr peak, sUA peak and duration of HU, requirement and duration of dialysis, extrarenal complications, and hypertension. By multivariate analysis, after adjusting for length of dialysis, only duration of HU (p = 0.0005; OR 1.7, 95% CI 1.27-2.36) remained as an independent predictor of sequelae, with a best cutoff of 5.5 days (AUC 0.95, specificity 80%, sensitivity 100%). CONCLUSIONS: The presence of HU is a common finding in children with STEC-HUS and its duration during the acute stage was associated with kidney-related sequelae, regardless of the duration of dialysis. A higher resolution version of the Graphical abstract is available as Supplementary Information.

Pesquisa de virus respiratorios habituales en pacientes pediátricos ambulatorios, a dos años de la pandemia por COVID-19 / Screening for common respiratory viruses in pediatric outpatients 2 years after the onset of the COVID-19 pandemic

Introducción. Durante el 2020, la circulación de otros virus respiratorios fue inferior a lo acostumbrado. Es probable que, almodificarse las medidas de mitigación para la infección por el coronavirus 2019, dicha prevalencia haya aumentado en 2021. Objetivo. Estimar la prevalencia de virus respiratorioshabituales en pacientes de 0 a 5 años asistidos en Departamento de Urgencias de un hospital pediátrico de la Ciudad Autónoma de Buenos Aires. Métodos. Estudio transversal con 348 pacientes que consultaronpor sospecha de enfermedad por el coronavirus 2019(COVID-19), en quienes se descartó dicha enfermedad y se realizó la pesquisa sistemática de virus respiratorios habitualesResultados. En el 40 % de los pacientes se identificó el virus sincicial respiratorio (VSR), un virus respiratorio habitual. La edad menor de 2 años se mostró como predictor independiente de VSR (razón de momios [OR]: 4,15; intervalos de confianza del 95 % [IC95 %]: 2,46-6,99). Conclusión. En la población estudiada, 40 % de los pacientes con sospecha de COVID-19 en quienes se descartó infección por SARS-CoV-2 presentaban infección por VSR.

Introduction. During 2020, circulation of other respiratory viruses was lower than usual. Most likely, as mitigation measures for coronavirus disease 2019 (COVID-19) were modified, their prevalence in 2021 may have increased. Objective. To estimate the prevalence of common respiratory viruses among patients aged 0­5 years seen at the Emergency Department of a children's hospital in the City of Buenos Aires. Methods. Cross-sectional study of 348 patients consulting for suspected COVID-19 in whom SARS-CoV-2 infection was ruled out and routine screening for common respiratory viruses was performed. Results. Respiratory syncytial virus (RSV), a common respiratory virus, was identified in 40% of patients. Age younger than 2 years was an independent predictor of RSV (odds ratio [OR]: 4.15; 95% confidence interval [CI]: 2.46­6.99). Conclusion. In the study population, 40% of patients suspected of COVID-19 in whom SARS-CoV-2 infection was ruled out had RSV infection.

Screening for common respiratory viruses in pediatric outpatients 2 years after the onset of the COVID-19 pandemic. / Pesquisa de virus respiratorios habituales en pacientes pediátricos ambulatorios, a dos años de la pandemia por COVID-19.

INTRODUCTION: During 2020, circulation of other respiratory viruses was lower than usual. Most likely, as mitigation measures for coronavirus disease 2019 (COVID-19) were modified, their prevalence in 2021 may have increased. OBJECTIVE: To estimate the prevalence of common respiratory viruses among patients aged 0-5 years seen at the Emergency Department of a children's hospital in the City of Buenos Aires. METHODS: Cross-sectional study of 348 patients consulting for suspected COVID-19 in whom SARS-CoV-2 infection was ruled out and routine screening for common respiratory viruses was performed. RESULTS: Respiratory syncytial virus (RSV), a common respiratory virus, was identified in 40% of patients. Age younger than 2 years was an independent predictor of RSV (odds ratio [OR]: 4.15; 95% confidence interval [CI]: 2.46-6.99). CONCLUSIONS: . In the study population, 40% of patients suspected of COVID-19 in whom SARS-CoV-2 infection was ruled out had RSV infection.

Introducción. Durante el 2020, la circulación de otros virus respiratorios fue inferior a lo acostumbrado. Es probable que, al modificarse las medidas de mitigación para la infección por el coronavirus 2019, dicha prevalencia haya aumentado en 2021. Objetivo. Estimar la prevalencia de virus respiratorios habituales en pacientes de 0 a 5 años asistidos en Departamento de Urgencias de un hospital pediátrico de la Ciudad Autónoma de Buenos Aires. Métodos. Estudio transversal con 348 pacientes que consultaron por sospecha de enfermedad por el coronavirus 2019 (COVID-19), en quienes se descartó dicha enfermedad y se realizó la pesquisa sistemática de virus respiratorios habituales. Resultados. En el 40 % de los pacientes se identificó el virus sincicial respiratorio (VSR), un virus respiratorio habitual. La edad menor de 2 años se mostró como predictor independiente de VSR (razón de momios [OR]: 4,15; intervalos de confianza del 95 % [IC95 %]: 2,46-6,99). Conclusión. En la población estudiada, 40 % de los pacientes con sospecha de COVID-19 en quienes se descartó infección por SARS-CoV-2 presentaban infección por VSR.

A poor and delayed anti-SARS-CoV2 IgG response is associated to severe COVID-19 in children.

BACKGROUND: Most children and youth develop mild or asymptomatic disease during severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. However, a very small number of patients suffer severe Coronavirus induced disease 2019 (COVID-19). The reasons underlying these different outcomes remain unknown. METHODS: We analyzed three different cohorts: children with acute infection (n=550), convalescent children (n=138), and MIS-C (multisystem inflammatory syndrome in children, n=42). IgG and IgM antibodies to the spike protein of SARS-CoV-2, serum-neutralizing activity, plasma cytokine levels, and the frequency of circulating Follicular T helper cells (cTfh) and plasmablasts were analyzed by conventional methods. FINDINGS: Fifty-eight percent of the children in the acute phase of infection had no detectable antibodies at the time of sampling while a seronegative status was found in 25% and 12% of convalescent and MIS-C children, respectively. When children in the acute phase of the infection were stratified according disease severity, we found that contrasting with the response of children with asymptomatic, mild and moderate disease, children with severe COVID-19 did not develop any detectable response. A defective antibody response was also observed in the convalescent cohort for children with severe disease at the time of admission. This poor antibody response was associated to both, a low frequency of cTfh and a high plasma concentration of inflammatory cytokines. INTERPRETATION: A weak and delayed kinetic of antibody response to SARS-CoV-2 together with a systemic pro-inflammatory profile characterize pediatric severe COVID-19. Because comorbidities are highly prevalent in children with severe COVID-19, further studies are needed to clarify their contribution in the weak antibody response observed in severe disease. FUNDING: National Agency for Scientific and Technological Promotion from Argentina (IP-COVID-19-0277 and PMO-BID-PICT2018-2548).

Blood neutrophils from children with COVID-19 exhibit both inflammatory and anti-inflammatory markers.

BACKGROUND: Perhaps reflecting that children with COVID-19 rarely exhibit severe respiratory symptoms and often remain asymptomatic, little attention has been paid to explore the immune response in pediatric COVID-19. Here, we analyzed the phenotype and function of circulating neutrophils from children with COVID-19. METHODS: An observational study including 182 children with COVID-19, 21 children with multisystem inflammatory syndrome (MIS-C), and 40 healthy children was performed in Buenos Aires, Argentina. Neutrophil phenotype was analyzed by flow cytometry in blood samples. Cytokine production, plasma levels of IgG antibodies directed to the spike protein of SARS-CoV-2 and citrullinated histone H3 were measured by ELISA. Cell-free DNA was quantified by fluorometry. FINDINGS: Compared with healthy controls, neutrophils from children with COVID-19 showed a lower expression of CD11b, CD66b, and L-selectin but a higher expression of the activation markers HLA-DR, CD64 and PECAM-1 and the inhibitory receptors LAIR-1 and PD-L1. No differences in the production of cytokines and NETs were observed. Interestingly, the expression of CD64 in neutrophils and the serum concentration of IgG antibodies directed to the spike protein of SARS-CoV-2 distinguished asymptomatic from mild and moderate COVID-19. INTERPRETATION: Acute lung injury is a prominent feature of severe COVID-19 in adults. A low expression of adhesion molecules together with a high expression of inhibitory receptors in neutrophils from children with COVID-19 might prevent tissue infiltration by neutrophils preserving lung function. FUNDING: This study was supported by the Ministry of Science and Technology (National Agency for Scientific and Technological Promotion, IP-COVID-19-0277 and PMO BID PICT 2018-2548), and University of Buenos Aires from Argentina (20020170100573BA).

Utilidad de una escala de alerta temprana como predictor precoz de deterioro clínico en niños internados / Usefulness of an early warning score as an early predictor of clinical deterioration in hospitalized children

Introducción. La detección temprana del deterioro clínico en pacientes internados posibilita mejorar la calidad de atención médica. Las escalas Pediatric Early Warning Score (PEWS) predicen este deterioro dentro de las primeras 24 h de aplicadas. Estudios previos avalan estas herramientas.Objetivo. Evaluar la utilidad de la escala B-PEWS(Brighton PEWS) para predecir el deterioro clínico en niños internados, en un hospital pediátrico de la Ciudad de Buenos Aires.Población y métodos. Diseño de corte transversal. Incluyó todas las historias clínicas de pacientes de 1 mes a 18 años hospitalizados en áreas de hospitalización indiferenciada, desde el 1 de marzo al 31 de agosto de 2018. Variable de predicción: valor de B-PEWS (≤ 3 y ≥ 4 puntos). Variable de resultado: deterioro clínico dentro de las 24 horas. Análisis de variables categóricas mediante prueba de chi2 y cálculo de valores de clivaje. Como medida de asociación, se usó riesgo relativo. Se realizó análisis de curva ROCy análisis de punto óptimo mediante índice de Youden, tomando la escala de manera continua.Resultados. Se analizaron 518 historias clínicas. Cuarenta pacientes presentaron deterioro clínico; 37 con B-PEWS ≥ 4, y 3 con B-PEWS ≤ 3 (RR 56,36; IC 95 %: 17,76-178,89; p < 0,01). Sensibilidad: el 92,5 %; especificidad: el 88,3 %; valor predictivo positivo: el 39,8 %; negativo: el 99,3 %; razón de verosimilitud positiva: 7,91; razón de verosimilitud negativa: 0,08. AUC: 0,94 (IC 95 %: 0,89-0,98).Conclusión. La escala B-PEWS demostró ser útil para predecir el deterioro clínico en niños hospitalizados

Introduction. The early detection of clinical deterioration in hospitalized patients helps to improve the quality of care. The pediatric early warning score (PEWS) system predicts such deterioration in the first 24 hours of administration. Prior studies support the use of these tools.Objective. To assess the usefulness of the Brighton PEWS (B-PEWS) for the prediction of clinical deterioration among hospitalized children at a children's hospital in the Autonomous City of Buenos Aires.Population and methods. Cross-sectional study. The medical records of all patients aged 1 month to 18 years admitted to any hospitalization ward between March 1st and August 31st, 2018 were included. Predictive outcome measure: B-PEWS score (≤ 3 and ≥ 4 points). Outcome variable: clinical deterioration in the first 24 hours. Categorical outcome measures were analyzed with the χ² test and screening values were estimated. The relative risk was used as a measure of association. A ROC curve analysis and an optimal cut-point analysis according to the Youden index were done considering the score in a continuous manner.Results. A total of 518 medical records were reviewed. Forty patients had clinical deterioration; the B-PEWS score was ≥ 4 in 37 patients and ≤ 3 in 3 (relative risk: 56.36; 95 % confidence interval: 17.76-178.89; p < 0.01). Sensitivity: 92.5 %; specificity: 88.3 %; positive predictive value: 39.8 %; negative predictive value: 99.3 %; positive likelihood ratio: 7.91; negative likelihood ratio: 0.08. AUC:0.94 (95 % confidence interval: 0.89-0.98).Conclusion. The B-PEWS demonstrated to be useful to predict clinical deterioration in hospitalized children.

Usefulness of an early warning score as an early predictor of clinical deterioration in hospitalized children. / Utilidad de una escala de alerta temprana como predictor precoz de deterioro clínico en niños internados.

INTRODUCTION: The early detection of clinical deterioration in hospitalized patients helps to improve the quality of care. The pediatric early warning score (PEWS) system predicts such deterioration in the first 24 hours of administration. Prior studies support the use of these tools. OBJECTIVE: To assess the usefulness of the Brighton PEWS (B-PEWS) for the prediction of clinical deterioration among hospitalized children at a children's hospital in the Autonomous City of Buenos Aires. POPULATION AND METHODS: Cross-sectional study. The medical records of all patients aged 1 month to 18 years admitted to any hospitalization ward between March 1st and August 31st, 2018 were included. Predictive outcome measure: B-PEWS score (≤ 3 and ≥ 4 points). Outcome variable: clinical deterioration in the first 24 hours. Categorical outcome measures were analyzed with the χ² test and screening values were estimated. The relative risk was used as a measure of association. A ROC curve analysis and an optimal cut-point analysis according to the Youden index were done considering the score in a continuous manner. RESULTS: A total of 518 medical records were reviewed. Forty patients had clinical deterioration; the B-PEWS score was ≥ 4 in 37 patients and ≤ 3 in 3 (relative risk: 56.36; 95 % confidence interval: 17.76-178.89; p < 0.01). Sensitivity: 92.5 %; specificity: 88.3 %; positive predictive value: 39.8 %; negative predictive value: 99.3 %; positive likelihood ratio: 7.91; negative likelihood ratio: 0.08. AUC: 0.94 (95 % confidence interval: 0.89-0.98). CONCLUSIONS: The B-PEWS demonstrated to be useful to predict clinical deterioration in hospitalized children.

Introducción. La detección temprana del deterioro clínico en pacientes internados posibilita mejorar la calidad de atención médica. Las escalas Pediatric Early Warning Score (PEWS) predicen este deterioro dentro de las primeras 24 h de aplicadas. Estudios previos avalan estas herramientas. Objetivo. Evaluar la utilidad de la escala B-PEWS (Brighton PEWS) para predecir el deterioro clínico en niños internados, en un hospital pediátrico de la Ciudad de Buenos Aires. Población y métodos. Diseño de corte transversal. Incluyó todas las historias clínicas de pacientes de 1 mes a 18 años hospitalizados en áreas de hospitalización indiferenciada, desde el 1 de marzo al 31 de agosto de 2018. Variable de predicción: valor de B-PEWS (≤ 3 y ≥ 4 puntos). Variable de resultado: deterioro clínico dentro de las 24 horas. Análisis de variables categóricas mediante prueba de chi2 y cálculo de valores de clivaje. Como medida de asociación, se usó riesgo relativo. Se realizó análisis de curva ROC y análisis de punto óptimo mediante índice de Youden, tomando la escala de manera continua. Resultados. Se analizaron 518 historias clínicas. Cuarenta pacientes presentaron deterioro clínico; 37 con B-PEWS ≥ 4, y 3 con B-PEWS ≤ 3 (RR 56,36; IC 95 %: 17,76-178,89; p < 0,01). Sensibilidad: el 92,5 %; especificidad: el 88,3 %; valor predictivo positivo: el 39,8 %; negativo: el 99,3 %; razón de verosimilitud positiva: 7,91; razón de verosimilitud negativa: 0,08. AUC: 0,94 (IC 95 %: 0,89-0,98). Conclusión. La escala B-PEWS demostró ser útil para predecir el deterioro clínico en niños hospitalizados.