From the Department of Dermatology, Erasmus Medical Center.
private practice.
Plast Reconstr Surg. 2023 Jul 1;152(1):67-74. doi: 10.1097/PRS.0000000000010131. Epub 2023 Jun 29.
Soft-tissue filler injections performed with a cannula are perceived to be less precise because of the length of the instrument and the blunt tip, which can deviate in any direction. Midfacial needle injections are favored despite the increased risk for intraarterial product placement. The objective of this study was to demonstrate that ultrasound-assisted cannula injections of the midface result in precise, safe, and effective volumization procedures.
Midfacial injections with a 22-G cannula were performed in 188 midfaces of 94 healthy volunteers [86 women; age, 53.05 (9.9) years; 23.63 (2.1) kg/m 2 ] under ultrasound-assisted guidance. Precision (ie, administration of product in the same plane as the location of the cannula tip), safety (ie, rate of adverse events), and aesthetic outcome (rated by the patient and the treating physician) were assessed.
In 100% of cases, the product was applied into the desired deep midfacial fat compartment, and the product did not migrate into more superficial layers during the injection process or at any follow-up visit. There was a statistically significant ( P < 0.001) improvement in midfacial volume loss and the aesthetic outcome was rated as very much improved. No adverse events were reported throughout follow-up.
Real-time imaging allows for visual feedback during cannula advancement and injection procedures in the midface and can help practitioners achieve safer aesthetic outcomes. It is hoped that practitioners decide to use a cannula more frequently for midfacial volumization, given the results presented in this article.
CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, IV.
由于器械的长度和钝头，使用套管进行软组织填充物注射被认为不够精确，这可能导致器械偏离任何方向。尽管存在产品误入动脉的风险增加，但中面部的针注射仍更受欢迎。本研究的目的是证明在中面部进行超声辅助套管注射可以实现精确、安全和有效的容积增大手术。
在 94 名健康志愿者的 188 例中面部（86 名女性；年龄 53.05±9.9 岁；23.63±2.1kg/m 2 ）中，在超声引导下进行 22-G 套管的中面部注射。评估了精度（即，产品在与套管尖端位置相同的平面上给药）、安全性（即，不良事件发生率）和美学效果（由患者和治疗医生评定）。
在 100%的病例中，产品被注射到预期的深层中面部脂肪间隙中，并且在注射过程中或在任何随访期间，产品均未迁移到更浅层。中面部容积丢失有统计学显著改善（P<0.001），并且美学效果被评为明显改善。在整个随访期间均未报告不良事件。
实时成像可在中面部套管推进和注射过程中提供视觉反馈，帮助医生实现更安全的美学效果。希望本文呈现的结果能促使医生更频繁地使用套管进行中面部容积增大。
临床问题/证据水平：治疗性，IV。
