Efficacy and Safety of Cold-Induced Noninvasive Targeted Fat Reduction in Pseudogynecomastia.

BACKGROUND

Treatment options for pseudogynecomastia are limited, and the demand for noninvasive breast fat reduction is increasing.

OBJECTIVE

We evaluated the efficacy and safety of a cold-induced lipolysis device for treating pseudogynecomastia.

METHODS

In this 16-week prospective trial, a total of 15 male patients with pseudogynecomastia were treated twice with cryolipolysis. The primary endpoint was a change in the chest circumference from baseline at posttreatment week 8. Secondary endpoints were changes in body weight, fat thickness assessed using ultrasonography, independent evaluator- and patient-rated improvement, and Simon's gynecomastia class (SGC) grading.

RESULTS

The primary assessment, a reduction of 3.05 cm in the mean chest circumference at 8 weeks post-treatment compared to baseline, was statistically significant. The treatment effect was cumulative, with a steady decrease in chest circumference and fat thickness over the 16-week study period. The mean pain score immediately after the first session of treatment was 2.0±1.36, based on a scale of 0~10, with a score of 10 being the worst pain ever experienced. The pain decreased substantially after the end of the procedure.

CONCLUSION

Cryolipolysis was demonstrated to be an effective and safe option for reducing breast fat in pseudogynecomastia. Male with mild to moderate breast enlargement without skin excess can be ideal candidates.