Why is fat embolism considered the most severe risk during a BBL surgery?

Answer

Fat enters a vein and blocks blood flow to the heart or lungs

Fat embolism is a critical, potentially fatal complication that occurs when fat is accidentally injected into a large vein rather than the tissue. Once in the bloodstream, the fat can travel to vital organs, specifically the heart or lungs, where it acts as a blockage that impedes blood flow. To mitigate this extreme risk, medical guidelines mandate that surgeons inject fat exclusively into the subcutaneous tissue and strictly avoid the muscle tissue where major blood vessels are located.

Why is fat embolism considered the most severe risk during a BBL surgery?
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