Detection of Tachyarrhythmias in a Large Cohort of Infants Using Direct-to-Consumer Heart Rate Monitoring.

OBJECTIVE: Current estimates of the incidence of tachyarrhythmias in infants rely on clinical documentation and may not reflect the true rate in the general population. Our aim was to describe the epidemiology of tachyarrhythmia detected in a large cohort of infants using direct-to-consumer heart rate (HR) monitoring. STUDY DESIGN: Data were collected from Owlet Smart Sock devices used in infants in the US with birthdates between February 2017 and February 2019. We queried the HR data for episodes of tachyarrhythmia (HR of ≥240 bpm for >60 seconds). RESULTS: The study included 100 949 infants (50.8% male) monitored for more than 200 million total hours. We identified 5070 episodes of tachyarrhythmia in 2508 infants. The cumulative incidence of tachyarrhythmia in our cohort was 2.5% over the first year of life. The median age at the time of the first episode of tachyarrhythmia was 36 days (range, 1-358 days). Tachyarrhythmia was more common in infants with congenital heart disease (4.0% vs 2.4%; P = .015) and in females (2.7% vs 2.0%; P < .001). The median length of an episode was 7.3 minutes (range, 60 seconds to 5.4 hours) and the probability of an episode lasting longer than 45 minutes was 16.8% (95% CI, 15.4%-18.3%). CONCLUSIONS: We found the cumulative incidence of tachyarrhythmia among infants using direct-to-consumer HR monitors to be higher than previously reported in studies relying on clinical diagnosis. This finding may represent previously undetected subclinical disease in young infants, the significance of which remains uncertain. Clinicians should be prepared to discuss these events with parents.

Avance genético y políticas de anonimato / Genetic advance and anonymity policies / Avanço genético e políticas de anonimato

Resumen En los últimos años se ha incrementado en Argentina la cantidad de tratamientos de reproducción asistida con donación de gametos (óvulos y/o espermatozoides). La filiación por técnicas de reproducción asistida heterólogas interroga la tradicional "herencia de sangre" objeto de estudio privilegiado de las ciencias sociales. En las últimas décadas, el paradigma sobre el anonimato de los donantes ha cambiado en muchos países. A su vez, se ha sugerido que los rápidos y generalizados avances en las pruebas genéticas podrían modificar las políticas de anonimato. ¿Cuáles son las consecuencias de fundamentar la revelación de la información genética/identificatoria sobre la base del mayor acceso que posibilitan los test genéticos? La presente reflexión parte de dos vertientes: la pública - que analiza las paradojas que encierra el articulado del nuevo Código Civil y Comercial (2015) - y la íntima, que ubica las coordenadas sobre las que se inscribe la transmisión singular de los orígenes.

Abstract In recent years, the number of assisted reproduction treatments with the donation of gametes (ovules and/or sperm) has increased in Argentina. The filiation by heterologous assisted reproduction techniques interrogates the traditional "blood inheritance" object of privileged study of the social sciences. In recent decades, the donor anonymity paradigm has changed in many countries. In turn, it has been suggested that rapid and widespread advances in genetic testing could modify anonymity policies. What are the consequences of substantiating the disclosure of genetic/identifying information based on the greater access that genetic tests allow? This reflection is based on two aspects: the public aspect - which analyzes the paradoxes contained in the articles of the new Civil and Commercial Code (2015) - and the intimate one, which locates the coordinates on which the singular transmission of the origins is inscribed.

Resumo Nos últimos anos, o número de tratamentos de reprodução assistida com doação de gametas (óvulos e/ou espermatozoides) aumentou na Argentina. A filiação por técnicas de reprodução assistida heteróloga interroga a tradicional "herança sanguínea", objeto de estudo privilegiado das ciências sociais. Nas últimas décadas, o paradigma do anonimato dos doadores mudou em muitos países. Por sua vez, sugeriu-se que avanços rápidos e generalizados em testes genéticos poderiam modificar as políticas de anonimato. Quais são as consequências de fundamentar a revelação das informações genéticas/de identificação com base no maior acesso que o teste genético torna possível? Esta reflexão parte de duas vertentes: a pública, que analisa os paradoxos dos artigos do novo Código Civil e Comercial (2015); e a íntima, que determina as coordenadas sobre as quais se inscrevem a transmissão singular das origens.