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Protective effects of corticosteroids in contrast material anaphylaxis
E C Lasser1, C C Berry, L B Talner
1Department of Radiology, UCSD School of Medicine, La Jolla 92093-0632.
Investigative Radiology
|September 1, 1988
Summary
A double dose of corticosteroids significantly reduced contrast material reactions in a large patient study. A single dose offered no significant protection against these adverse events.
Area of Science:
- Radiology
- Pharmacology
- Clinical Trials
Background:
- Contrast material reactions pose a risk during medical imaging.
- Corticosteroids are sometimes used to mitigate these reactions.
- Optimal dosing strategies require further investigation.
Purpose of the Study:
- To evaluate the efficacy of different corticosteroid pretreatment regimens in preventing contrast material reactions.
- To compare single-dose versus double-dose corticosteroid administration.
- To assess the protective effects of methylprednisolone before contrast media administration.
Main Methods:
- A prospective, randomized, multi-institutional study involving 6,763 patients.
- Patients received either a single oral dose, a double oral dose of methylprednisolone, or placebo before intravenous ionic contrast material injection.
- Reaction incidences were recorded and analyzed.
Main Results:
- The double-dose corticosteroid regimen (32 mg at 12 and 2 hours pre-challenge) significantly reduced contrast material reaction incidences.
- The single-dose regimen (32 mg at 2 hours pre-challenge) did not provide significant protection.
- The study tabulated the impact of historical variables on reaction rates.
Conclusions:
- A double-dose corticosteroid pretreatment regimen is effective in preventing contrast material reactions.
- Single-dose corticosteroid pretreatment is insufficient for significant protection.
- Findings support the use of specific corticosteroid protocols to enhance patient safety during contrast-enhanced imaging.