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The Benefit of Dual-frequency Ultrasound in Patients Treated by Injection Lipolysis.

OBJECTIVE
To assess whether dual-frequency ultrasound can improve the treatment results of injection lipolysis (IL).


DESIGN
Randomized, single-center pilot study. All subjects were treated with a contralateral control: one side of the body received the treatment with IL, whereas the symmetrical contralateral side received the combination of IL with dual-frequency ultrasound in a special form (LDM). Injections were provided subcutaneously in the depth of 8 to 12mm with a distance of nearly 15mm between the single injections. All subjects were treated with LDM once, 1 to 3 hours before the injection and twice per week after the injection.


SETTING
Kosmed Clinic, Kiel, Germany.


PARTICIPANTS
Seven female healthy subjects with local body contouring problems in femoral or upper arm regions.


MEASUREMENTS
Circumference was measured before and 6 to 8 weeks after treatment. Pain, hematoma, itching, burning sensation, redness, swelling, and pressure sensation were evaluated before the first treatment and 6 to 8 weeks for both contralateral sides.


RESULTS
Application of LDM in combination with IL improved the volume reduction compared to pure IL by 65.6 percent. The difference between IL and IL+LDM treated sides showed very high significance (p≤0.0001). Significant differences between IL and IL+LDM treated areas were found also in pain (p≤0.01). No statistical difference was found in all other subjective parameters.


CONCLUSION
Application of LDM significantly increases the treatment success after IL and the acceptance of IL procedures by patients.