Glossary
Vascular occlusion
Also called: VO, filler occlusion
A blocked blood vessel caused by filler injected into or compressing an artery. Rare and serious, but treatable when recognized quickly, which is why skin color is checked during treatment.
Signs include blanching, pain out of proportion to the injection, and a purplish mottled pattern. Treatment for hyaluronic acid filler is prompt, high-dose hyaluronidase and supportive measures. See safety and complication readiness.