Respiratory and sleep outcomes in children with SMA treated with nusinersen - real world experience.
Neuromuscul Disord
; 33(6): 531-538, 2023 06.
Article
in En
| MEDLINE
| ID: mdl-37290230
ABSTRACT
It is unclear how improvements in peripheral motor function in children with spinal muscular atrophy (SMA), treated with nusinersen, translate into clinically significant respiratory/sleep outcomes. A retrospective chart review of SMA children at the Sydney Children's Hospital Network was undertaken looking at 2 years before and after receiving their first dose of nusinersen. Polysomnography (PSG), spirometry and clinical data were collected and analysed using paired and unpaired t-tests for PSG parameters and generalised estimating equations for longitudinal lung function data. Forty-eight children (10 Type 1, 23 Type 2, 15 Type 3) at mean age 6.98 yrs (SD 5.25) for nusinersen initiation were included. There was a statistically significant improvement in oxygen nadir during sleep in individuals post nusinersen (mean of 87.9% to 92.3% (95%CI 1.24 - 7.63, p = 0.01)). Based on clinical and PSG findings, 6/21 patients (5 Type 2, 1 Type 3) ceased nocturnal NIV post nusinersen. Non-significant improvements were demonstrated in mean slope for FVC% predicted, FVC Z-score and mean FVC% predicted. Within 2 years of commencing nusinersen, stabilisation of respiratory outcomes occurred. Whilst some of the SMA type 2/3 cohort ceased NIV, there were no statistically significant improvements lung function and most PSG parameters.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Muscular Atrophy, Spinal
/
Spinal Muscular Atrophies of Childhood
Type of study:
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limits:
Child
/
Humans
Language:
En
Journal:
Neuromuscul Disord
Journal subject:
NEUROLOGIA
Year:
2023
Type:
Article