Combining Microfocused Ultrasound With Botulinum Toxin and Temporary and Semi-Permanent Dermal Fillers: Safety and Current Use.

[BACKGROUND] A microfocused ultrasound system with visualization (MFU-V) is currently indicated for use as a noninvasive dermatological aesthetic treatment to lift the eyebrows, lax submental and neck tissue, and improve lines and wrinkles of the décolleté.

[OBJECTIVE] To determine the existence of any safety signals when combining MFU-V with botulinum toxin-A and/or semipermanent and temporary dermal fillers.

[MATERIALS AND METHODS] A retrospective chart review was performed using subjects who received aesthetic treatments including incobotulinumtoxinA injection, cohesive polydensified matrix hyaluronic acid (CPM HA) dermal fillers, and calcium hydroxylapatite (CaHA) dermal fillers within 6 months of treatment with MFU-V in the same or different anatomic areas.

[RESULTS] All subjects (N = 101; 96 female; 25-70 year old) received MFU-V, 18% received incobotulinumtoxinA injections, and 81% were treated with CPM HA and/or CaHA fillers. Seven adverse events (7%) were reported: bruising/purpura (n = 4), swelling (n = 1), paresthesia (n = 1), and herpes simplex virus (HSV) outbreak (n = 1). Only the HSV outbreak was considered to be related to combined treatments.

[CONCLUSION] Although limited by relatively few subjects, the results of the present study suggest that the safety profile of MFU-V combined with other aesthetic products is consistent with the safety profiles of the individual treatments.