SARS-CoV-2 infection in children with cystic fibrosis: A cross-sectional multicenter study in Spain. New waves, new knowledge.

INTRODUCTION: The association between viral infections and pulmonary exacerbations in children with cystic fibrosis (cwCF) is well established. However, the question of whether cwCF are at a higher risk of COVID-19 or its adverse consequences remains controversial. METHODS: We conducted an observational, multicenter, cross-sectional study of cwCF infected by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) between March 2020 and June 2022, (first to sixth COVID-19 pandemic waves) in Spain. The study aimed to describe patients' basal characteristics, SARS-CoV-2 clinical manifestations and outcomes, and whether there were differences across the pandemic waves. RESULTS: During study time, 351 SARS-CoV2 infections were reported among 341 cwCF. Median age was 8.5 years (range 0-17) and 51% were female. Cases were unevenly distributed across the pandemic, with most cases (82%) clustered between November 2021 and June 2022 (sixth wave, also known as Omicron Wave due to the higher prevalence of this strain in that period in Spain). Most cwCF were asymptomatic (24.8%) or presented with mild Covid-19 symptoms (72.9%). Among symptomatic, most prevalent symptoms were fever (62%) and increased cough (53%). Infection occurring along the sixth wave was the only independent risk factor for being symptomatic. Just eight cwCF needed hospital admission. No multisystem inflammatory syndrome, persisting symptoms, long-term sequelae, or deaths were reported. CONCLUSIONS: Spanish current data indicate that cwCF do not experience higher risks of SARS-CoV-2 infection nor worse health outcomes or sequelae. Changes in patients' basal characteristics, clinical courses, and outcomes were detected across waves. While the pandemic continues, a worldwide monitoring of COVID-19 in pediatric CF patients is needed.

Impact of SARS-CoV-2 infection in patients with cystic fibrosis in Spain: Incidence and results of the national CF-COVID19-Spain survey.

BACKGROUND: Given the high incidence of confirmed infection by SARS-CoV-2 and mortality by COVID-19 in the Spanish population, its impact was analysed among persons with Cystic Fibrosis (CF) as a group at risk of a worse evolution. The possible causes of the incidence observed in them are explained and how CF Units have faced this health challenge is detailed. METHODS: Retrospective descriptive observational study, for which a Spanish CF Patients with Confirmed COVID-19 Registry is created, requesting information on number of people affected between 8 March-16 May 2020 and their clinical-demographic characteristics from the CF Units participating in the European Cystic Fibrosis Society Patient Registry (ECFSPR). The accumulated incidence is calculated, compared with that of the general population. Additionally, a survey (CF-COVID19-Spain) is carried out on prevention of SARS-CoV-2 infection, workings of CF Units and possible reasons for the incidence observed. RESULTS: COVID-19 was diagnosed in eight CF patients, one of whom had received a lung transplant. The accumulated incidence was 32/10000 in CF patients and 49/10000 in the general population. General death rate was 5.85/10000 while no CF patients included in the ECFSPR died. The characteristics of those affected and the results of the survey are described. CONCLUSIONS: Despite being considered a disease at high risk of severe COVID-19, the low incidence and mortality in CF patients in Spain contrasts with the figures for the general population. The possible factors that would explain such findings are discussed, with the help of the results of the CF-COVID19-Spain survey.

Bronquiolitis obliterante en paciente con poliquistosis hepatorrenal en lista para trasplante / Bronchiolitis obliterans in a transplant-waitlisted patient with hepatorenal polycystic disease

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Clinical response to long term enzyme replacement treatment in children, adolescent and adult patients with Hunter syndrome / Respuesta clinica al tratamiento prolongado con terapia de reemplazo enzimático en niños, adolescentes y adultos con Síndrome de Hunter

Background and objective: Since enzyme replacement treatment (ERT) with idursulfase is available for Hunter syndrome (HS; mucopolysaccharidosis type II), for the first time, disease progression can be limited and organ damage reduced or prevented. Patients and methods: We described retrospectively the clinical evolution of eight HS males, treated with ERT and followed in routine clinical practice in Hospital Infantil La Fe (Valencia, Spain). Results: We studied three children, three adolescents and two adults. Time from diagnosis to ERT ranged from 13.7 to 0.2 years, and duration of ERT ranged from 24 to 77.1 months. From the start of ERT, weight and height increased in children and adolescents and remained stable in adults. Glycosaminoglycans (GAG) decreased in all patients; in patient 5 (aged 23 years), we observed the highest reduction (86%) with recovery of carpal tunnel syndrome, splenomegaly and a decrease in nocturnal oxygen dependence. Conclusion: Our results show that ERT improve respiratory impairment and organomegalies and decrease GAGs levels in all patients including children, adolescent and adults. While cardiac manifestations and facial features stabilized, responses in other parameters were heterogeneous (AU)

Introducción y objetivo: Desde que la Terapia de reemplazo enzimático (TRE) con Idursulfasa está disponible para el Síndrome de Hunter (SH; mucopolisacaridosis tipo II) la progresión de la enfermedad puede limitarse y posiblemente reducir y prevenir el daño orgánico. Pacientes y métodos: Describimos retrospectivamente la evolución de 8 pacientes con SH, tratados con TRE y revisados según práctica clínica habitual en el Hospital Infantil La Fe (Valencia, España). Resultados: Estudiamos 3 niños, 3 adolescentes y 2 adultos El tiempo desde el diagnóstico hasta inicio de TRE fue de 0,2 a 13,7 añosy la duración de la TRE de 24 a 77,1 meses. Tras iniciar la TRE, el peso y la talla de los niños y adolescentes se incrementaron permaneciendo estable en los adultos. Los glucosaminoglicanos (GAG) disminuyeron en todos los pacientes; la mayor reducción (86%) se observó en un adulto que mejoró el túnel carpiano, disminuyó la esplenomegalia y la dependencia nocturna de oxígeno. Conclusión: Nuestros resultados muestran que la TRE mejora la función respiratoria, las organomegalias y reducen los niveles e GAGs urinarios en todos los pacientes incluyendo niños, adolescentes y adultos. Las manifestaciones cardiacas y facials permanecieron estables. Los resultados en otros parámetros fueron heterogéneos (AU)

Clinical response to long term enzyme replacement treatment in children, adolescent and adult patients with Hunter syndrome.

BACKGROUND AND OBJECTIVE: Since enzyme replacement treatment (ERT) with idursulfase is available for Hunter syndrome (HS; mucopolysaccharidosis type II), for the first time, disease progression can be limited and organ damage reduced or prevented. PATIENTS AND METHODS: We described retrospectively the clinical evolution of eight HS males, treated with ERT and followed in routine clinical practice in Hospital Infantil La Fe (Valencia, Spain). RESULTS: We studied three children, three adolescents and two adults. Time from diagnosis to ERT ranged from 13.7 to 0.2 years, and duration of ERT ranged from 24 to 77.1 months. From the start of ERT, weight and height increased in children and adolescents and remained stable in adults. Glycosaminoglycans (GAG) decreased in all patients; in patient 5 (aged 23 years), we observed the highest reduction (86%) with recovery of carpal tunnel syndrome, splenomegaly and a decrease in nocturnal oxygen dependence. CONCLUSION: Our results show that ERT improve respiratory impairment and organomegalies and decrease GAGs levels in all patients including children, adolescent and adults. While cardiac manifestations and facial features stabilized, responses in other parameters were heterogeneous.

Fundamentos de la oxigenoterapia en situaciones agudas y crónicas: indicaciones, métodos, controles y seguimiento / Oxygen therapy in acute and chronic conditions: Indications, oxygen systems, assessement and follow-up

La oxigenoterapia es una herramienta fundamental para el tratamiento de la insuficiencia respiratoria, tanto aguda como crónica. Los objetivos principales que llevan a su empleo son tratar o prevenir la hipoxemia, tratar la hipertensión pulmonar y reducir el trabajo respiratorio y miocárdico. En situaciones agudas, su utilidad está ampliamente aceptada y en situaciones crónicas se ha extendido de forma importante. Sin embargo, sigue sin haber consenso en puntos fundamentales y son pocos los aspectos en los que la actuación entre los diferentes centros esté estandarizada. El Grupo de Trabajo de Técnicas de la Sociedad Española de Neumología Pediátrica acordó elaborar unas recomendaciones avaladas por esta Sociedad sobre el empleo de este tratamiento, e incorporó las diferentes formas de actuación recogidas en revisiones recientes para intentar establecer sus indicaciones, disminuir los efectos colaterales y procurar una correcta adecuación del gasto económico. Se han incluido aspectos generales del tratamiento con oxígeno, como los mecanismos fisiológicos, las indicaciones para su empleo, tanto en situaciones agudas como crónicas, y los medios disponibles para su correcta administración. Se aborda asimismo el tratamiento del paciente con oxigenoterapia en domicilio y las situaciones especiales que pueden producirse (AU)

Oxygen therapy has become a major tool for infants with acute and chronic respiratory failure. Appropriate goals when prescribing supplemental oxygen are reduction and prevention of hypoxemia, prevention and treatment of pulmonary hypertension and decrease in respiratory and cardiac overload. This is commonplace in the acute setting and is also becoming widespread in chronic pathologies. However, there is a lack of consensus on many fundamental issues, such as appropriate indications, desirable targets and outcome measures amongst centres, reflecting a variety of clinical practices. The Techniques Group of the Spanish Society of Pediatric Pneumology undertook to design recommendations for a rational approach to oxygen therapy, reviewing the existing literature in order to establish its indications, benefits and potential risks as well as its cost-effectivenes. General aspects of oxygen treatment are reviewed including physiological mechanisms, indications, delivery systems and assessment methods. Management of patients on home oxygen therapy is also addressed with discussion of benefits and potential risks of supplemental oxygen use (AU)

[Oxygen therapy in acute and chronic conditions: Indications, oxygen systems, assessement and follow-up]. / Fundamentos de la oxigenoterapia en situaciones agudas y crónicas: indicaciones, métodos, controles y seguimiento.

Oxygen therapy has become a major tool for infants with acute and chronic respiratory failure. Appropriate goals when prescribing supplemental oxygen are reduction and prevention of hypoxemia, prevention and treatment of pulmonary hypertension and decrease in respiratory and cardiac overload. This is commonplace in the acute setting and is also becoming widespread in chronic pathologies. However, there is a lack of consensus on many fundamental issues, such as appropriate indications, desirable targets and outcome measures amongst centres, reflecting a variety of clinical practices. The Techniques Group of the Spanish Society of Pediatric Pneumology undertook to design recommendations for a rational approach to oxygen therapy, reviewing the existing literature in order to establish its indications, benefits and potential risks as well as its cost-effectivenes. General aspects of oxygen treatment are reviewed including physiological mechanisms, indications, delivery systems and assessment methods. Management of patients on home oxygen therapy is also addressed with discussion of benefits and potential risks of supplemental oxygen use.

Tratamiento domiciliario de los pacientes con displasia broncopulmonar / No disponible

No disponible