A comparative interventional study of narrowband ultraviolet B alone and narrowband ultraviolet B in combination with microneedling in patients with stable vitiligo.

Background: Vitiligo is a cosmetically concerning common disorder of depigmentation. Narrowband Ultraviolet B (NB-UVB) phototherapy is a well-established mode of treatment for vitiligo. Microneedling is a simple method that has been used for vitiligo treatment in adjunct with NB-UVB and has been shown to induce repigmentation in a few studies; however, there is limited study in the literature.

Aims: To compare the efficacy of NB-UVB alone versus NB-UVB in conjunction with microneedling in patients of stable vitiligo.

Methods: Thirty patients of non-segmental vitiligo with patches tending toward symmetry, stable for at least 6 months were included. Patches on right side of body (side A) were subjected to both microneedling every 2 weeks and NB-UVB three times a week, while patches on left side of body (side B) were subjected to NB-UVB alone thrice weekly for 4 months or till complete resolution of lesions whichever was earlier. Patients were followed up for another 2 months. Response was assessed by photographic record and Vitiligo Area Severity Index (VASI score) calculated at baseline and every month for 6 months.

Results: The mean VASI score improvement in both the groups as compared to baseline was statistically significant (p-value < .01). However, the difference in mean VASI scores between the two groups was not statistically significant (p-value = .17).

Conclusion: NB-UVB is an effective modality for treatment of vitiligo, but there is no additional benefit of combining microneedling with it.