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Jornal Brasileiro de Pneumologia

On-line version ISSN 1806-3756

Abstract

MARQUES, Tanyse Bahia Carvalho et al. Air stacking: effects on pulmonary function in patients with spinal muscular atrophy and in patients with congenital muscular dystrophy,. J. bras. pneumol. [online]. 2014, vol.40, n.5, pp.528-534. ISSN 1806-3756.  https://doi.org/10.1590/S1806-37132014000500009.

OBJECTIVE:

Respiratory complications are the main causes of morbidity and mortality in patients with neuromuscular disease (NMD). The objectives of this study were to determine the effects that routine daily home air-stacking maneuvers have on pulmonary function in patients with spinal muscular atrophy (SMA) and in patients with congenital muscular dystrophy (CMD), as well as to identify associations between spinal deformities and the effects of the maneuvers.

METHODS:

Eighteen NMD patients (ten with CMD and eight with SMA) were submitted to routine daily air-stacking maneuvers at home with manual resuscitators for four to six months, undergoing pulmonary function tests before and after that period. The pulmonary function tests included measurements of FVC; PEF; maximum insufflation capacity (MIC); and assisted and unassisted peak cough flow (APCF and UPCF, respectively) with insufflations.

RESULTS:

After the use of home air-stacking maneuvers, there were improvements in the APCF and UPCF. In the patients without scoliosis, there was also a significant increase in FVC. When comparing patients with and without scoliosis, the increases in APCF and UPCF were more pronounced in those without scoliosis.

CONCLUSIONS:

Routine daily air-stacking maneuvers with a manual resuscitator appear to increase UPCF and APCF in patients with NMD, especially in those without scoliosis.

Keywords : Neuromuscular diseases; Cough; Respiratory function tests; Respiratory therapy.

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