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  • Title: Intralesional triamcinolone injections for the treatment of nail dystrophy: A case series.
    Author: Yoo KH, Bang DS, Han HS, Li K, Kim BJ.
    Journal: Dermatol Ther; 2020 May; 33(3):e13427. PubMed ID: 32301144.
    Abstract:
    Nail dystrophy can be temporary or permanent and affects quality of life for many patients. It can be secondary to an inflammatory condition; however, many cases are idiopathic. Despite many efforts, there is no promising treatment. Local steroid injection is one of the standard therapies offered for nail dystrophy, but there have been few formal open trials or case reports of its efficacy. This study investigated the impact of intralesional triamcinolone injections on the management and safety of nail dystrophy. Overall, 12 patients with 55 nails affected by nail dystrophy were enrolled. All lesions were injected with triamcinolone acetonide (2.5 mg/mL, 0.1 cc) through the proximal nail fold with a 30 g needle. Injections were administered every 4 weeks. Efficacy was retrospectively evaluated using physician's global assessment of clinical photographs graded on a 5-point scale as 0, no improvement; 1, slight improvement; 2, moderate improvement; 3, marked improvement; and 4, almost resolved. All adverse events that occurred during treatment were recorded. All patients presented with slight improvement of nail dystrophy after 1 to 3 months. The treatment durations varied from 6 to 12 months (mean, 8.58 months). The average time to observed therapeutic effect was 1.91 months after first treatment. The mean outcome assessment score was 2.8 points, with two patients each showing slight and moderate improvement and five showing marked improvement; in three, the dystrophy was almost resolved. Side effects of this regimen were minimal. Intralesional triamcinolone injections are an effective and safe method for the treatment of nail dystrophy.
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