An October 2026 Aesthetic Surgery Journal Open Forum paper proposed a four-stage approach to recognizing and managing vascular occlusion after hyaluronic acid filler injections, emphasizing early assessment, hyaluronidase treatment, and follow-up care.
Researchers Emphasize Early Detection and Repeated Hyaluronidase Treatment
On October 8, 2026, Aesthetic Surgery Journal Open Forum published a paper by Khalifian et al. (2026) on recognizing and treating cutaneous vascular occlusion after hyaluronic acid filler injections. Drawing on published research and clinical experience, the researchers emphasized assessing capillary refill and repeating hyaluronidase treatment to reduce the risk of tissue necrosis and scarring. The paper contributes to industry research on injectable safety and complication management relevant to Med Spa injectors, medical directors, and aesthetic practitioners.
Expert-Informed Protocol Details Four Stages of Vascular Occlusion Management
Khalifian et al. (2026) developed the proposed algorithm by combining complication-management practices from high-volume aesthetic centers with pharmacologic principles, clinical experience, and peer-reviewed literature from 2018–2026. The paper focuses on cutaneous vascular occlusion following hyaluronic acid (HA) filler injections and excludes complications involving vision.
Stage 1 – Recognition and Mapping of Ischemia
The researchers identify skin blanching, disproportionate pain, mottled discoloration, and delayed capillary refill as potential warning signs. They describe comparing capillary refill in the affected area with the corresponding area on the opposite side of the face to identify tissue with impaired blood flow.
Stage 2 – Immediate Bedside Measures
The proposed protocol begins with stopping the injection and initiating bedside measures, including aspirin, warm compresses, and massage. The researchers separately emphasize that visual symptoms require an ocular emergency response outside the scope of this algorithm.
Stage 3 – Hyaluronidase Treatment
The researchers identify hyaluronidase as a primary treatment for vascular occlusion related to HA fillers. Although its use for this indication is off-label, it is established in aesthetic complication management, with variation in dosing, timing, and administration practices. To address these differences, the proposed protocol describes high-dose, pulsed hyaluronidase administered through a multi-depth “pillar grid,” with four treatment cycles during the first two hours and additional treatment the following day. The protocol also discusses ultrasound-guided treatment when equipment and trained clinicians are available.
Stage 4 – Adjunctive Care and Follow-Up
The final stage examines potential supportive treatments, including vasodilators, corticosteroids, hyperbaric oxygen, and wound care. The researchers acknowledge limited evidence supporting several adjunctive therapies and describe continued assessment, clinical documentation, and follow-up until tissue recovery.
The researchers acknowledged that the algorithm has not undergone prospective clinical validation and recommended further studies to evaluate its effectiveness, safety, dosing limits, and escalation criteria. The proposed approach contributes to existing research on injectable complication management rather than establishing a definitive clinical standard.
Source Publication
According to Khalifian et al. (2026), the proposed algorithm addresses variations in the recognition and treatment of cutaneous vascular occlusion following HA filler injections. The paper, “An Expert-Informed, Four-Stage Algorithm for Early Recognition and Treatment of Cutaneous Vascular Occlusion After Hyaluronic Acid Filler,” was published October 8, 2026, in Aesthetic Surgery Journal Open Forum and is available under DOI 10.1093/asjof/ojag188.
Research Discussion and Considerations for Aesthetic Operators
The authors describe that the proposed algorithm aims to address differences in how aesthetic injectors recognize and manage vascular occlusion. Khalifian et al. (2026) sought to combine existing research with clinical experience into a practical, stepwise approach applicable across outpatient aesthetic settings. The researchers emphasize timely intervention while allowing clinicians to account for available resources and individual patient needs.
A central part of the discussion examines how hyaluronidase may dissolve filler obstructing blood flow without requiring direct injection into the affected artery. The researchers cite evidence that the enzyme can pass through blood vessel walls when administered into surrounding tissue. The authors describe repeated administration to maintain enzyme exposure despite its short half-life, while massage may improve distribution.
The paper also considers equipment and clinical expertise. While initial assessment and bedside measures require no specialized imaging, ultrasound may allow more targeted hyaluronidase administration. A separate IntechOpen review of cosmetic injectable procedures examined facial vascular mapping, real-time imaging, and practitioner training for ultrasound-guided injections.
The proposed four-stage algorithm contributes to ongoing research on managing HA filler vascular occlusion, emphasizing early recognition, timely treatment, and clinical preparedness.
Related research also addresses injectable safety in clinical education. A September 2026 Aesthetic Surgery Journal study on live injecting at aesthetic conferences examined clinical accountability, emergency preparedness, and patient follow-up during live demonstrations. For Med Spa operators, the findings contribute to ongoing research on complication management and clinical preparedness in aesthetic medicine.
Operational Considerations for Med Spa Injectors and Aesthetic Operators
- Review early warning signs of vascular occlusion, including skin blanching, unusual pain, mottled discoloration, and delayed capillary refill.
- Discuss capillary refill assessment and its role in identifying areas of impaired circulation during injectable complication training.
- Distinguish suspected cutaneous vascular occlusion from complications that cause visual symptoms and require a separate emergency response.
- Consider the potential role of ultrasound-guided assessment and treatment when appropriate equipment and trained clinicians are available.
- Review procedures for documenting suspected complications, communicating with patients, and monitoring recovery through follow-up assessments.
What to Watch Next
Khalifian et al. (2026) recommend a multicenter, prospective observational study involving high-volume aesthetic clinics to evaluate the algorithm’s safety, effectiveness, and reproducibility. Further research may clarify how the proposed approach performs in aesthetic practice and inform future clinical guidance for managing filler-related vascular complications.
About Spakinect
Spakinect provides compliance infrastructure and telehealth-supported supervision solutions for medical aesthetic practices. For additional information, see our website.
Image Attribution: “Hyaluronic Acid Lip Filler Injection” by Valeria Stoganenko, via Vecteezy, available under the Vecteezy Free License.
