Breath sound analyses of infants with respiratory syncytial virus acute bronchiolitis.
Pediatr Pulmonol
; 57(10): 2320-2326, 2022 10.
Article
en En
| MEDLINE
| ID: mdl-35670233
ABSTRACT
INTRODUCTION:
The reliability of a breath sound analysis using an objective method in infants has been reported.OBJECTIVE:
Breath sounds of infants with respiratory syncytial virus (RSV) acute bronchiolitis were analyzed via a breath sound spectrogram to evaluate their characteristics and examine their relationship with the severity. SUBJECTS ANDMETHODS:
We evaluated the inspiratory and expiratory breath sound parameters of 33 infants diagnosed with RSV acute bronchiolitis. The sound powers of inspiration and expiration were evaluated at the acute phase and recovery phase of infection. Furthermore, the relationship between the breath sound parameters and the clinical severity of acute bronchiolitis was examined.RESULTS:
Analyses of the breath sound spectrogram showed that the power of expiration as well as the expiration-to-inspiration sound ratio in the mid-frequency (E/I MF) was increased in the acute phase and decreased during the recovery phase. The E/I MF was inversely correlated with the SpO2 and positively correlated with the severity score.CONCLUSION:
In infants with RSV acute bronchiolitis, the sound power of respiration was large at the acute phase, significantly decreasing in the recovery phase. In 61% of participants, nonuniform, granular bands were shown in the low-pitched region of the expiratory spectrogram.Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Bronquiolitis
/
Virus Sincitial Respiratorio Humano
/
Infecciones por Virus Sincitial Respiratorio
Tipo de estudio:
Diagnostic_studies
Límite:
Humans
/
Infant
Idioma:
En
Revista:
Pediatr Pulmonol
Asunto de la revista:
PEDIATRIA
Año:
2022
Tipo del documento:
Article
País de afiliación:
Japón