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Management of Critically Ill Patients With Spinal Muscular Atrophy Admitted With Acute Respiratory Failure.


ABSTRACT:

Background

Spinal muscular atrophy (SMA) is a neurodegenerative disease that results in progressive muscular atrophy and weakness. The primary cause of morbidity and mortality in these children is pulmonary disease due to poor airway clearance that leads to acute respiratory failure. There is a paucity of literature on the treatment of children with SMA and acute respiratory failure.

Methods

We performed a retrospective chart review of pediatric patients with SMA type I or II admitted to the PICU in a tertiary-care children's hospital with acute respiratory failure who required mechanical ventilation and/or aggressive airway clearance.

Results

The study included 300 unique encounters among 137 unique subjects. All the subjects received airway clearance at home before admission, and 257 encounters (85.7%) were supported with noninvasive ventilation (NIV) before admission. Sixty-eight subjects (49.6%) required endotracheal intubation on admission or at some point during their PICU stay. The median (interquartile range [IQR]) time to intubation was 0 (0-20) h, and the median (IQR) duration of mechanical ventilation was 2 (1-5) d on invasive mechanical ventilation with no statistical difference between type I and type II (P = .89). Of those, 65 (91.1%) were successfully extubated to NIV on the first attempt, whereas 4 subjects (5.8%) required multiple extubation attempts and 3 subjects (4.4%) required subsequent tracheostomy. For the subjects who were intubated, both PICU and hospital length of stay were longer (P < .001) when compared with the subjects managed by NIV alone. The subjects with SMA type I had a longer PICU length of stay, with a median (IQR) of 5 (3-11) d versus 4 (2-7) d (P = .002). The hospital length of stay and duration of invasive mechanical ventilation were not statistically different (P = .055 and P = .068, respectively).

Conclusions

The subjects with SMA types I or II can be treated successfully with NIV and aggressive airway clearance during acute respiratory failure. Similarly, when intubation is required, successful extubation can be achieved with NIV transitional support combined with aggressive airway clearance maneuvers.

SUBMITTER: Al-Subu AM 

PROVIDER: S-EPMC9994271 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature

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Management of Critically Ill Patients With Spinal Muscular Atrophy Admitted With Acute Respiratory Failure.

Al-Subu Awni M AM   Adams Carolyn K CK   Dykstra Scarlett A SA   Langkamp Miranda R MR   Yngsdal-Krenz Rhonda A RA   Al Subu Rand M RM   Zhang Zhumin Z   Baker Kimberly N KN   Brazelton Thomas B TB  

Respiratory care 20230130 2


<h4>Background</h4>Spinal muscular atrophy (SMA) is a neurodegenerative disease that results in progressive muscular atrophy and weakness. The primary cause of morbidity and mortality in these children is pulmonary disease due to poor airway clearance that leads to acute respiratory failure. There is a paucity of literature on the treatment of children with SMA and acute respiratory failure.<h4>Methods</h4>We performed a retrospective chart review of pediatric patients with SMA type I or II admi  ...[more]

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