Paediatric headbox as aerosol and droplet barrier.
Arch Dis Child
; 107(1): 65-67, 2022 01.
Article
en En
| MEDLINE
| ID: mdl-34266877
ABSTRACT
BACKGROUND:
High-flow nasal oxygen (HFNO) is frequently used in hospitals, producing droplets and aerosols that could transmit SARS-CoV-2.AIM:
To determine if a headbox could reduce droplet and aerosol transmission from patients requiring HFNO.METHODS:
The size and dispersion of propylene glycol (model for patient-derived infectious particles) was measured using a spectrometer and an infant mannequin receiving 10-50 L/min of HFNO using (1) no headbox, (2) open headbox, (3) headbox-blanket or (4) headbox with a high-efficiency particulate (HEP) filter covering the neck opening.RESULTS:
All headbox set-ups reduced the dispersal of droplets and aerosols compared with no headbox. The headbox-blanket system increased aerosol dispersal compared with the open headbox. The fraction of aerosols retained in the headbox for HFNO of 10 and 50 L/min was, respectively, as follows (1) open headbox 82.4% and 42.2%; (2) headbox-blanket 56.8% and 39.5%; (3) headbox-HEP filter 99.9% and 99.9%.CONCLUSION:
A HEP-filter modified headbox may serve as an effective droplet and aerosol barrier adjunct for the protection of staff caring for children receiving HFNO.Palabras clave
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Oxígeno
/
Ropa de Cama y Ropa Blanca
/
Tos
/
Equipo de Protección Personal
/
SARS-CoV-2
/
COVID-19
Límite:
Humans
/
Infant
/
Newborn
Idioma:
En
Revista:
Arch Dis Child
Año:
2022
Tipo del documento:
Article
País de afiliación:
Australia