Publications by authors named "Maija L Johansen"

Background/objectives: Infantile hemangiomas (IH) are the most common soft-tissue tumors in childhood, occurring in up to 1 in 10 infants. Oral propranolol has been well established as the first-line treatment of complicated hemangiomas; however, variability in the administration protocol remains. We sought to evaluate our current propranolol treatment protocols to determine if the level of monitoring and follow-up predicts immediate or future adverse events by comparing one in-person visit vs two in-person visits versus teledermatology for treatment initiation and dose escalation.

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Immunization compliance in the United States is declining, in part due to misinformation and fear surrounding adverse vaccination reactions. Recently, there have been data published in the allergy and immunology literature to show that there may be a relationship between routine vaccinations and induction of symptoms in cutaneous mastocytosis patients; however, this has not yet been explored in the dermatology literature. We sought to uncover the prevalence of vaccine reactions due to mast cell activation within our cohort of maculopapular cutaneous mastocytosis (MPCM) patients in order to contribute to ensuring administration safety, managing familial expectations, and encouraging continued adherence.

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Background/objectives: Though maculopapular cutaneous mastocytosis is the most common form of pediatric mastocytosis, it remains unclear which patients will experience severe symptoms. We sought to better define the presentation and the cutaneous and systemic signs and symptoms in patients with maculopapular cutaneous mastocytosis.

Methods: We analyzed retrospective data on 227 patients diagnosed with maculopapular cutaneous mastocytosis prior to age 15 years from five US clinical sites.

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