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Pediatr Crit Care Med. 2012 May;13(3):e161-5. doi: 10.1097/PCC.0b013e3182388ad1.

Spinal muscular atrophy type 1: are proactive respiratory interventions associated with longer survival?

Author information

1
Department of Pediatrics, University of Utah School of Medicine, Salt Lake City, UT, USA. lemoine@hsc.utah.edu

Abstract

CONTEXT:

Spinal muscular atrophy type 1, an autosomal recessive motor neuron disease, is a leading genetic cause of death in infancy and early childhood.

OBJECTIVE:

To determine whether the early initiation of noninvasive respiratory interventions is associated with longer survival.

DESIGN:

Single-institution retrospective cohort study identified children with spinal muscular atrophy type 1 from January 1, 2002 to May 1, 2009 who were followed for 2.3 mean yrs.

SETTING:

Tertiary care children's hospital and outpatient clinics in a vertically integrated healthcare system.

PATIENTS OR OTHER PARTICIPANTS:

Forty-nine children with spinal muscular atrophy type 1 were grouped according to the level of respiratory support their caregivers chose within the first 3 months after diagnosis: proactive respiratory care (n = 26) and supportive care (n = 23).

INTERVENTIONS:

Proactive respiratory care included bilevel noninvasive ventilation during sleep and twice a day cough assist while supportive respiratory care included suctioning, with or without supplemental oxygen.

MEASUREMENTS AND MAIN RESULTS:

Kaplan-Meier survival curves were assessed based on intention to treat. Children treated with early proactive respiratory support had statistically longer survival compared to supportive care (log rank 0.047); however, the adjusted hazard ratio for survival was not statistically different (2.44 [95% confidence interval 0.84-7.1]). Children in the proactive group were more likely to be hospitalized for respiratory insufficiency (83% vs. 46%) and had shortened time after diagnosis until first hospital admission for respiratory insufficiency (median 118 vs. 979 days).

CONCLUSION:

Longer survival time with spinal muscular atrophy type 1 is associated with early, noninvasive respiratory care interventions after diagnosis.

PMID:
22198810
PMCID:
PMC4334579
DOI:
10.1097/PCC.0b013e3182388ad1
[Indexed for MEDLINE]
Free PMC Article

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