What Researchers Did
Researchers reported on a 64-year-old man who developed severe neurological problems after an ankle imaging procedure involving air injection.
What They Found
The patient experienced worsening neurological and circulatory issues after 20 ml of air was injected into his ankle joint for a CT scan. A brain CT scan revealed a small amount of air in his brain, and after hyperbaric oxygen therapy (HBOT) was started 16 hours later, he made a full recovery. Further tests confirmed a heart defect (right-left shunt) that allowed air to travel from his veins to his arteries.
What This Means for Canadian Patients
This case highlights that air embolism, though rare, can occur after joint imaging procedures involving air injection, leading to severe neurological symptoms. For Canadian patients experiencing such complications, this study suggests that hyperbaric oxygen therapy (HBOT) should be considered, even if there is a delay of more than six hours in starting treatment. Early recognition of symptoms like neurological or circulatory decline after intra-articular air injection is crucial for prompt diagnosis and intervention.
Canadian Relevance
This study covers arterial gas embolism, which is a Health Canada-recognized indication for hyperbaric oxygen therapy.
Study Limitations
As a single case report, the findings from this study cannot be broadly applied to all patients or situations.