Derm Topics

Postinflammatory Hyper- and Hypopigmentation: Differential Diagnosis and Practical Treatment Approaches

Post-inflammatory hyperpigmentation and hypopigmentation can be tricky to treat. Next Steps in Derm, in partnership with the ODAC Dermatology Conference, interviewed Dr. Pooja Sodha, associate professor of dermatology at GW School of Medicine & Health Sciences. Watch as Dr. Sodha outlines her strategies for treating post-inflammatory hyperpigmentation (PIH) and hypopigmentation. Learn why it’s important to consider the underlying issue when choosing a therapy for PIH. Find out how energy-based devices can help with residual hyperpigmentation. Hear Dr. Sodha’s approach for using topicals and lasers in repigmenting the skin. Plus find out her keys for counseling patients with these conditions.

 

Further Reading

If you want to read more about hyperpigmentation and hypopigmentation, check out the following articles published in the Journal of Drugs in Dermatology:

Getting to the Core of Contemporary Therapies for Post-Inflammatory Hyperpigmentation

ABSTRACT
Post-inflammatory hyperpigmentation (PIH) is a typical complication of inflammatory dermatoses that more frequently and severely affects people with darker skin. External insults to the skin, such as burn injuries, dermatologic treatments, and intrinsic skin disorders (eg, eczema and acne), are common causes of PIH. Individuals with darker skin are prone to develop PIH, which can cause substantial psychological suffering. PIH can be prevented or alleviated. When this happens, it is essential to point out what is causing it and treat it as soon as possible to prevent inflammation and PIH from progressing. If the inflammatory symptoms go away or there is no evidence of inflammation at the time of diagnosis, PIH treatments should be evaluated. To hasten the resolution of PIH, treatment should begin as soon as possible. Treatment begins with the care of the initial inflammatory condition. Topical medications, chemical peels, laser and light-based treatment, phototherapy, and other therapeutic modalities are offered to treat PIH. Understanding the therapy options available helps the physician in choosing the best treatment for each patient. With these backgrounds, the current review aimed to discuss the epidemiology, pathogenesis, clinical presentation, and available treatment options for the PIH.

Re-pigmentation of Hypopigmentation: Fractional Lasers vs Laser-Assisted Delivery of Bimatoprost vs Epidermal Melanocyte Harvesting System

ABSTRACT

Background: Hypopigmentation is a common cutaneous manifestation that frequently poses a therapeutic challenge for dermatologists. Current treatments have varying efficacies and rarely provide patients with long-term results. However, new treatments are emerging, and head-to-head studies comparing these treatments are warranted.
Methods & Materials: In this prospective, Institutional Review Board (IRB)-approved, double-blinded study, 40 subjects with moderate to severe hypopigmentation were randomized into 1 of 4 treatment arms; non-ablative fractional laser, ablative fractional laser, ablative fractional laser with laser-assisted delivered bimatoprost, and an epidermal harvesting system.
Results: All patients in this study showed improvement regardless of the treatment modality. The average improvement score was calculated on a 0 to 4 scale, and Group 3 (fractional ablative laser and bimatoprost) was found to have a significantly higher average improvement than all other treatments, with 76% of the patients exhibiting at least a grade 3 (over 50%) improvement over the treatment course. Group 1 (non-ablative fractional) also had a significantly higher average score compared with group 2 (fractional ablative laser).

Conclusion: New and emerging therapies have shown promise in helping re-pigmentation of cutaneous hypopigmentation. In this head-to-head trial, it was shown that laser-assisted delivery of bimatoprost had a greater statistically significant improvement compared with 3 possible treatment modalities for stimulation of pigment in medical and cosmetic hypopigmentation.

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