Respiratory effects of spinal immobilization

Area of Science:

• Emergency Medicine
• Respiratory Physiology
• Trauma Care

Background:

• Spinal immobilization is a critical intervention in trauma care.
• The impact of immobilization devices on respiratory function requires further investigation.
• Patient comfort during immobilization can affect compliance and outcomes.

Purpose of the Study:

• To assess the respiratory effects of two common spinal immobilization methods: a wooden backboard with a Philadelphia collar and a vacuum mattress with a vacuum collar.
• To compare the comfort levels associated with each immobilization technique.

Main Methods:

• A randomized, crossover laboratory study involving 39 healthy volunteers (ages 7-85).
• Respiratory function was measured at baseline, after immobilization on a backboard, and after immobilization on a vacuum mattress.
• Comfort was evaluated using a forced Likert scale.

Main Results:

• Both immobilization methods resulted in an average 15% restriction in respiration.
• Respiratory restriction was more pronounced in younger and older individuals.
• The vacuum mattress was rated as significantly more comfortable than the wooden backboard.
• FEV1 (Forced Expiratory Volume in 1 second) was lower with the vacuum mattress compared to the backboard.

Conclusions:

• This study confirms that whole-body spinal immobilization negatively impacts respiratory function.
• Vacuum mattresses offer a more comfortable alternative to traditional wooden backboards for spinal immobilization.
• Consideration of patient age is important, as respiratory restriction is more severe at the extremes of age.