Vascular complications from facial fillers with hyaluronic acid: preparation of a prevention and treatment protocol

Abstract

Introduction: Over the past two decades, there has been an exponential advancement in treating signs of facial aging. The growing demand for less invasive therapies has stimulated the development of biomaterials toward better products, seeking to fulfill safety criteria, such as biocompatibility and reversibility. Hyaluronic acid (HA) is the most widely used facial filler worldwide, being routine in plastic surgery clinics. Even with low complication rates, it is prudent for the plastic surgeon to be attentive to the signs of vascular occlusion because the interruption of the progression towards necrosis and permanent sequelae depends on rapid medical action. Thus, our service saw the need to create a prevention and treatment protocol, since such complications are serious and sometimes even irreversible. Methods: A systematic review of the literature was conducted from January 2003 to January 2018, using descriptors of vascular complications after facial filling with HA and its treatment. Results: Filling with HA presents a low potential for complications when performed by qualified professionals. Hyaluronidase, which is currently used off-label, can hydrolyze HA, even in its cross-linked form. If used correctly in a timely manner, it can treat possible vascular complications that would progress to irreversible damage. Accordingly, we prepared a treatment protocol given the current evidence. Conclusion: Every plastic surgeon who works with fillers and HA must have a protocol and be aware of the necessary material for early intervention.

Keywords

• hyaluronic acid
• hyaluronoglucosaminidase
• dermal fillers
• embolism
• necrosis