Pulmonary function in patients with multiple trauma and associated severe head injury

Area of Science:

• Trauma surgery
• Critical care medicine
• Pulmonary medicine

Background:

• Patients with multiple injuries, including severe intracranial trauma, face risks of pulmonary complications.
• The impact of intracranial trauma on renal, cardiac, and pulmonary systems requires further investigation.
• Corticosteroid use in managing such complex trauma cases is an area of interest.

Observation:

• Five patients with multiple injuries and severe intracranial trauma received dexamethasone (4-6 every 6 hours) for 72 hours post-injury.
• Pulmonary function and sodium/water balance were monitored during the study period.
• Results were compared to 14 similar patients without head injury who did not receive corticosteroids.

Findings:

• Patients receiving dexamethasone achieved negative water balance and near-zero sodium balance within 72 hours, indicated by high-volume, low-sodium urine output.
• Despite initial impaired alveolar-arterial oxygen gradients and low-normal pulmonary compliance, pulmonary function progressively improved.
• No patient in the dexamethasone group developed post-traumatic pulmonary insufficiency.

Implications:

• Dexamethasone may counteract the detrimental effects of severe intracranial trauma on renal, cardiac, and pulmonary functions.
• Corticosteroids might offer protection to pulmonary function in polytrauma patients, preventing post-traumatic pulmonary insufficiency.
• The mechanism may involve dexamethasone's role in facilitating rapid restoration of sodium and water balance via renal effects.