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Purpose: Studies have shown increased invasive Group A Streptococcus (GAS) disease, including bloodstream infections (GAS-BSI). However, the epidemiological data of GAS-BSI are limited in children. We aimed to describe GAS-BSI in Spanish children over 13 years (2005-2017). Methods: Multicenter retrospective cohort study from 16 Spanish hospitals. Epidemiology, symptomatology, laboratory, treatment, and outcome of GAS-BSI in children ≤16 years were analyzed. Results: 109 cases of GAS-SBI were included, with incidence rate of 4.3 episodes/100,000 children attended at the emergency department/year. We compared incidence between two periods (P1:2005-June 2011 vs P2:July 2011-2017) and observed a non-significant increase along the study period (APC:+6.0% [95%CI:-2.7,+15.4]; p=0.163). Median age was 24.1 months (IQR:14.0–53.7), peaking during the first four years of life (89/109 cases;81.6%). Primary BSI (46.8%), skin and soft tissue (21.1%), and osteoarticular infections (18.3%) were the most common syndromes. We compared children with primary BSI with those with a known source and observed that the former had shorter hospital stay (7vs.13 days; p=0.003) and received intravenous antibiotics less frequently (72.5%vs.94.8%; p=0.001) and for shorter periods (10vs.21 days; p=0.001). 22% of cases required PICU admission. Factors associated with severity were respiratory distress, pneumonia, thrombocytopenia, and surgery, but in multivariate analysis, only respiratory distress remained significant (adjusted OR:9.23 [95%CI:2.16-29.41]). Two children (1.8%) died. Conclusion: We observed a trend in increased incidence of GAS-BSI within the study period. Younger children were more frequently involved, and primary BSI was the most common and less severe syndrome. PICU admission was frequent, being respiratory distress the main risk factor.

Resumen: Introducción: En 2014 se publicó el Documento de Consenso desarrollado por SEIP-SERPE-SEOP para el diagnóstico y el tratamiento de las infecciones osteoarticulares (IOA). En 2015 se constituyó RIOPed como red nacional multidisciplinar para la investigación en IOA. El objetivo del estudio ha sido valorar el grado de adecuación a las recomendaciones establecidas en el consenso durante un año de seguimiento. Material y métodos: Estudio prospectivo multicéntrico nacional realizado entre septiembre de 2015 y septiembre de 2016 en 37 hospitales con inclusión de pacientes menores de 16 años diagnosticados de IOA, confirmada mediante aislamiento microbiológico, o probable: artritis séptica (AS) con > 40.000 leucocitos en líquido sinovial u osteomielitis (OM)/osteoartritis (OA)/espondilodiscitis (ED) con prueba de imagen compatible. Los resultados se compararon con los obtenidos en el estudio retrospectivo realizado entre 2008 y 2012. Resultados: Se incluyeron 255 casos: 131 OM, 79 AS, 30 OA y 15 ED. Respecto a las pruebas complementarias que el consenso consideró de obligada realización, la radiografía se llevó a cabo en el 87,8% de los casos, el hemocultivo en el 91,6% y el cultivo de líquido sinovial en el 99% de AS. Se realizó RM en el 71% de las OM. La elección del tratamiento antibiótico intravenoso empírico se adecuó a las recomendaciones en el 65,1% de los casos, y en el 62,3% para el tratamiento oral. Se llevó a cabo cirugía en el 36,8% de las AS (85,7% artrotomía), con un descenso significativo respecto al estudio retrospectivo (p = 0,014). Solo el 58,5% de casos se ajustaron a las recomendaciones de duración del tratamiento; sin embargo, se comprobó una menor duración del tratamiento intravenoso. Conclusiones: En general, el grado de adecuación a las recomendaciones que marcaron el grupo de expertos es bueno para las pruebas complementarias y aceptable respecto a la elección del tratamiento antibiótico, aun detectándose casi un 40% de inadecuación. Se ha conseguido un descenso de la estancia hospitalaria. Abstract: Introduction: In 2014 the Consensus Document produced by the Spanish Paediatric Societies (SEIP-SERPE-SEOP) was published to help in the diagnosis and treatment of osteoarticular infections (OAI). In 2015 the RIOPed was considered as a multidisciplinary national network for the investigation into OAI. The aim of this study was to assess the level of adaption to the recommendations established in the Consensus during one year of follow-up. Material and methods: A prospective, national multicentre study was carried out in 37 hospitals between September 2015 and September 2016. The study included patients > 16 years-old with a diagnosis of OAI, confirmed by microbiological isolation, or probable: septic arthritis (SA) with > 40,000 white cells in synovial fluid, or osteomyelitis (OM)/spondylodiscitis (SD) with a compatible imaging test. The results were compared with those obtained in a retrospective study conducted between 2008 and 2012. Results: A total of 235 cases were included, of which 131 were OM, 79 SA, 30 OA, and 15 SD. As regards the complementary tests that the Consensus considered mandatory to perform, radiography was carried out on 87.8% of the cases, a blood culture on 91.6%, and culture of the synovial fluid in 99% of SA. A magnetic resonance (MR) was performed on 71% of the OM cases. The choice of intravenous empirical antibiotic treatment was adapted to the recommendations in 65.1% of cases, and in 62.3% for the oral treatment. Surgery was performed in 36.8% of SA cases (85.7% arthrotomy), with a significant decrease compared to the retrospective study (P = .014). Only 58.5% of cases followed the recommendations on the duration of the treatment; however, a lower duration of intravenous treatment was observed. Conclusions: In general, the level of adaptation to the recommendations that were set by the Expert Group, is good for the complementary tests, and acceptable as regards the choice of antibiotic treatment, although inadequate in almost 40% of cases. A decrease in hospital stay was achieved.

Objectives: To evaluate electrocardiogram markers to predict coronary involvement in patients with Kawasaki disease by assessing measures of ventricular repolarization parameters on the 12-lead electrocardiogram. Study design: This cross-sectional study included 180 Spanish and Japanese patients ≤14 years of age with Kawasaki disease, with or without coronary involvement, from 2011 to 2016. We manually measured the Tp-Te/QT ratio and QTc interval (with Bazett's formula) in 12-lead electrocardiogram in the acute and recovery period and explored their potential association with coronary involvement. Results: No association was found between Tp-Te/QT ratio obtained manually in V5 and V6 leads and coronary involvement in the acute (V5:0.25 [IQR, 0.21-0.27] vs 0.25 [IQR, 0.20-0.27], P = .80; V6:0.24 [IQR, 0.21-0.27] vs 0.25 [IQR, 0.20-0.27], P = .86) or the recovery (V5: 0.23 [IQR, 0.20-0.25] vs 0.23 [IQR, 0.19-0.25], P = .68; V6: 0.23 [IQR, 0.20-0.25] vs 0.23 [IQR, 0.17-0.25], P = .50) period. By contrast, QTc in V5 and V6 was significantly lower in patients with Kawasaki disease and coronary involvement in the acute period (V5: 378 ms [IQR, 364-395 ms] vs 390 ms [IQR, 371-411 ms], P = .04; V6: 377 ms [IQR, 364-392 ms] vs 390 ms [IQR, 371-410 ms], P = .01). A QTc interval of

Background: Mycobacterium lentiflavum is considered a rare pathogen causing nontuberculous mycobacterial (NTM) lymphadenitis. Methods: A multicenter, retrospective study was performed in immunocompetent children

Background: Chagas disease, caused by Trypanosoma cruzi (T. cruzi), is endemic in Latin-America and is emerging in Spain due to immigration. The vertical transmission rate is around 5%. A routine prenatal screening with serology of all pregnant women from endemic areas is recommended to identify infected newborns, allowing early treatment and cure. Objective: The aim of this study was to estimate the prevalence of positive Chagas serology in a cohort of pregnant women from Latin-America and its vertical transmission. Patients and methods: An observational, prospective, follow-up study was conducted on women with positive serology to T. cruzi, as well as their newborns, from January 2013 to April 2015. Congenital Chagas was ruled out using a PCR technique at birth and at 1 month, and with serology at 9–12 months old. A child was considered infected when PCR was positive, and uninfected when PCR was negative, and/or it had a negative serology. Results: Screening was performed on 1.244 pregnant women from Latin-America, and there were positive results in 40 (prevalence 3.2%, 95% CI: 2.4–4.4%), with 85% of them from Bolivia.There was only one infected newborn (rate of vertical transmission 2.8% (95% CI: 0–15%)), who had a positive PCR at birth. Relative studies enabled an 8-year-old sister with an asymptomatic disease to be diagnosed and treated. Both were treated successfully with benznidazole (later the PCR and serology were negative). Conclusion: Screening during pregnancy in Latin-American women helped to detect those with Chagas disease. The rate of vertical transmission was 2.8%, in keeping with literature. Screening led to the detection and treatment of previously unidentified familial cases. Resumen: Introducción: La enfermedad de Chagas, causada por Trypanosoma cruzi (T. cruzi), es endémica en Latinoamérica y emergente en España, ligada a inmigración. La transmisión vertical se estima de alrededor del 5%. Se recomienda cribado selectivo en el embarazo para identificar al recién nacido infectado, permitiendo tratamiento precoz y curación de la enfermedad. Objetivo: El objetivo de este estudio fue estimar la prevalencia de serología positiva para T. cruzi en una cohorte de gestantes latinoamericanas y la tasa de transmisión vertical de la misma. Pacientes y métodos: Estudio observacional prospectivo de gestantes con serología positiva para T. cruzi en hospital terciario, desde enero del 2013 hasta abril del 2015. El seguimiento de recién nacidos se realizó con PCR al nacimiento, repetida al mes, y serología a los 9-12 meses. Se consideró infectado al niño con PCR positiva y no infectado al niño con PCR negativa y/o negativización de anticuerpos. Resultados: Se realizó cribado en 1.244 gestantes latinoamericanas, siendo positivas 40 (prevalencia 3,2%, IC del 95%: 2,4-4,4%), 85% procedentes de Bolivia. Solo un niño resultó infectado (transmisión vertical 2,8%, IC del 95%: 0-15%) con PCR positiva al nacimiento. La detección de la embarazada permitió estudiar a los hermanos, detectándose caso asintomático en paciente de 8 años. Ambos tratados con benznidazol con buena tolerancia, evolución favourable y negativización de PCR y anticuerpos. Conclusión: El cribado de embarazadas latinoamericanas ha permitido la detección de gestantes con enfermedad de Chagas. La transmisión vertical fue del 2,3%, coincidente con la literatura. El cribado ha permitido la detección y el tratamiento de casos familiares no identificados previamente.

We evaluated the evolution over time of once-daily antiretroviral therapy in HIV-infected children and its relationship with adherence. An increase on the prevalence of once-daily antiretroviral therapy was observed over time (from 0.9% in 2002 to 44.2% in 2011). There was no difference in adherence regarding once-daily or BID regimens in 2011. Adherence was related to age and pill burden.