Exploring Channeling Optimized Radiofrequency Energy: a Review of Radiofrequency History and Applications in Esthetic Fields

Abstract

Of all tissue heating techniques, RF-based technologies appear to be the most established and clinically proven. The design and specifications of the described vacuumassisted bipolar RF device fall within the range of the specifications currently prescribed for esthetic, nonablative RF systems.

Consensus Recommendations on the Use of a Fractional Radiofrequency Microneedle and Its Applications in Dermatologic Laser Surgery

“…3,[8][9][10] In the medical field, RF energy has been used for over 80 years. 2,11 The initial application of RF to medicine was electrocautery in 1920s, but now RF is widely used for many medical conditions, ranging from surgery for minimal invasive technique to aesthetic procedures.…”

“…Therefore, Heat energy (J) is created by impedance (z) to the movement of electrons relative to the amount of currents (I) and time that current is delivered to tissue. 1,3,10 The parts of the body with high blood content have the lowest impedance, namely highest electrical conductivity. 1,3,18 Bone, for example, has very high impedance and consequently the electrical current cannot penetrate the bone tissue, so the current flows around it.…”

“…1,3,10 The parts of the body with high blood content have the lowest impedance, namely highest electrical conductivity. 1,3,18 Bone, for example, has very high impedance and consequently the electrical current cannot penetrate the bone tissue, so the current flows around it. 3,10,11 In skin, dry skin has high impedance, so in order to enhance electrical current, hydration is necessary.…”

“…1,3,18 Bone, for example, has very high impedance and consequently the electrical current cannot penetrate the bone tissue, so the current flows around it. 3,10,11 In skin, dry skin has high impedance, so in order to enhance electrical current, hydration is necessary. 2,3,10 Contrary to laser light which can be scattered and absorbed before reaching the target tissue, RF energy is not affected by tissue diffraction and chromophore absorption.…”

“…In dermatological field, RF devices have many aesthetic applications, including skin lifting and tightening, body contouring and cellulite reduction. [1][2][3] Recently, combining the fractional technique with a classical nonablative radiofrequency device has been introduced and revolutionized the field of skin rejuvenation. 1,[4][5][6][7] Fractional radiofrequency micro-needle (FRM) system delivers an exact amount of RF energy at accurate depth directly into the deep dermal area through micro-needle.…”