A Retrospective Study to Compare the Effects of Methylprednisolone and Dexamethasone in 35 Patients with Anaphylactic Shock Due to Iodinated Contrast Media During Cardiac Catheterization

Background: This retrospective study aimed to compare the effects of methylprednisolone and dexamethasone in 35 patients with anaphylactic shock due to iodinated contrast media (ICM) during cardiac catheterization. Material/Methods: Thirty-five patients diagnosed with ICM-related anaphylactic shock were enrolled. Nineteen patients received methylprednisolone, while 16 patients received dexamethasone. Results: The mean age of patients was 59.8 years in the methylprednisolone group and 57.2 years in the dexamethasone group (P=0.502). Most patients were male (82.9% [26/35]). The groups were matched for cardiac function, kidney function, comorbidities, prior contrast, previous radiocontrast media reactions, and allergic tendencies (all P>0.05). The severity of coronary artery disease, assessed using the SYNTAX II score, was similar between groups (P=0.620). Six patients died from ICM-induced anaphylactic shock. There was no significant difference in mortality between the 2 groups (P=1.000). Conclusions: There was no significant difference in patient mortality from anaphylactic shock associated with ICM during cardiac catheterization between the methylprednisolone and dexamethasone groups.