Clinical Efficacy of Microplasma Radiofrequency in Treating Post-Traumatic Pigmentary Deposition: A VISIA Quantitative Analysis.

OBJECTIVE

To observe the clinical efficacy of microplasma radiofrequency in treating post-traumatic pigmentary deposition using VISIA quantitative analysis, an innovative approach not previously emphasized in microplasma radiofrequency studies.

METHODS

Twenty patients with post-traumatic pigmentary deposition, treated at Cangzhou Central Hospital between July 2022 and December 2022, were selected. Pigmented areas were divided into four regions (A: control; B, C, D: treated with increasing energy parameters). Adverse effects (erythema, edema, micro-crusts, pruritus) were monitored at 2, 4, and 6 weeks post-treatment using CTCAE v5.0 criteria. Pigmentary deposition scores and VISIA parameters (spots, ultraviolet spots, red areas, brown spots) were evaluated.

RESULTS

At 2, 4, and 6 weeks, Groups B, C, D showed significant reductions in pigment scores and VISIA parameters vs Group A (P < 0.05), with Group D (highest energy) achieving maximal improvement. Transient mild-moderate erythema (60-100%), edema (40-80%), and micro-crusts (20-60%) occurred in treated groups, resolving spontaneously within 14 days; no severe adverse events were observed.

CONCLUSION

Microplasma radiofrequency significantly improves post-traumatic pigmentary deposition, with energy-dependent efficacy. Despite transient side effects at higher energies, its favorable safety profile supports clinical adoption. VISIA quantitative analysis provides robust objective evaluation, advancing standardization in pigment management.