New Techniques for Ultrasound-Guided Hyaluronic Acid Filler Injection
摘要
The introduction of hyaluronic acid (HA) filler injections has significantly transformed modern aesthetic medicine, offering a minimally invasive alternative to traditional cosmetic surgery. This injectable therapy, capable of restoring skin texture, volume, and contouring facial structures within minutes, ranks among the most widely performed aesthetic treatments, alongside botulinum toxin injections [1]. A key advantage of HA fillers is their reversibility, as they can be enzymatically degraded by hyaluronidase, making them a safer option compared to other fillers. However, despite their safety profile, HA fillers are not without risks. Severe complications can arise if the filler is inadvertently injected into blood vessels, potentially leading to vascular occlusion and tissue necrosis and blindness [2].