摘要

Objectives: To explain the role of tissue impedance in monopolar radiofrequency (MRF) energy transfer and treatment consistency, and to review recent advances in impedance control technologies. Participants will learn how impedance matching and real-time calibration may improve energy uniformity, reduce overheating risk, and enhance safety and reproducibility in aesthetic MRF treatments. Introduction: Tissue impedance is a major determinant of energy transmission in monopolar radiofrequency procedures. Variability between patients and anatomical sites may alter heating patterns, treatment uniformity, and safety. Recent technical advances aim to address this challenge by dynamically adjusting the output during treatment based on patient-specific tissue properties. Materials / method: This presentation reviews the engineering principles and clinical relevance of contemporary impedance control technologies in MRF systems. The discussion focuses on impedance matching, real-time calibration, and dynamic output modulation, and examines their roles in energy transfer efficiency, overheating prevention, treatment stability, and adaptation to tissue-specific impedance variation. Results: Recent impedance control technologies appear to improve the consistency of energy delivery by compensating for changes in tissue resistance. These systems may reduce localized overheating, enhance treatment uniformity, and support more reproducible procedural performance. Their integration into MRF platforms represents an important advance in translating engineering feedback into clinical safety benefits. Conclusion: Impedance control technologies are becoming increasingly important in optimizing MRF treatment safety and performance. By dynamically responding to tissue variability, these systems may improve delivery precision, reduce the risk of adverse thermal events, and increase consistency. Continued refinement may lead to safer, more effective monopolar radiofrequency treatments in aesthetic practice.