Abstract
Objective We aimed to characterize intravenous (IV) methylprednisolone (MP) dosing regimens and clinical outcomes for children hospitalized for critical asthma (CA). Methods A single-center, retrospective review was performed of children admitted to the pediatric intensive care unit (PICU) for CA between September 2015 and October 2019. Patients 5-to 17-year-olds, initiated on continuous nebulized albuterol, and prescribed at least one dose of IV MP were included. The primary outcome was to characterize PICU MP dosing. Cohorts were then compared by MP dosing: conservative-dose methylprednisolone (CDMP, ≤ 0.5 mg/kg/dose every 6 h) and standard-dose methylprednisolone (SDMP, > 0.5 mg/kg/dose every 6 h). Clinical efficacy endpoints were the duration of continuous nebulized albuterol and PICU length of stay (LOS). Safety endpoints included corticosteroid-related adverse events. Results Of 168 children studied, 50 (29.8%) were prescribed CDMP and 118 (70.2%) SDMP. The overall mean MP dose was 31.3 ± 19.6 mg (weight-adjusted: 0.77 ± 0.32 mg/kg/dose). Compared to those prescribed SDMP, those prescribed CDMP had a shorter median duration of continuous nebulized albuterol (12.8 [IQR: 10.5–20] versus 17.3 [IQR: 11.3–29.7] hours, p = 0.019) and median PICU LOS (0.9 [IQR: 0.7–1.4] versus 1.2 [IQR: 0.9–1.8] days, p = 0.012). No corticosteroid-related adverse events were observed. In adjusted models, weight-adjusted IV MP dose was not associated with PICU LOS or duration of continuous nebulized albuterol. Conclusions Intravenous MP dosing for pediatric CA varied widely in our study sample. Prospective, controlled trials are required to validate our observations including clinical efficacy and safety endpoints.
Published Version
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