Comparison of Immunomodulatory Therapies for Cardiovascular Clinical and Inflammatory Markers Outcomes in Mild to

Rashmitha Dachepally1, Reem Sarkis2, Alvaro DonaireGarcia3

  • 1Department of Pediatric Critical Care Medicine, Children's Nebraska, Omaha, NE 68114, USA.

Insights

Combined intravenous immunoglobulin (IVIG) and corticosteroids (GC) therapy improved short-term outcomes in children with multisystem inflammatory syndrome (MIS-C). This approach showed faster recovery in cardiovascular parameters and inflammatory markers compared to IVIG alone.

Area of Science:

  • Pediatrics
  • Immunology
  • Cardiology

Background:

  • Multisystem inflammatory syndrome in children (MIS-C) treatment requires further optimization.
  • Optimal therapeutic strategies for non-critically ill MIS-C patients are not well-defined.

Purpose of the Study:

  • To compare short-term outcomes of intravenous immunoglobulin (IVIG) monotherapy versus IVIG plus corticosteroids (GC) in hospitalized MIS-C patients.
  • To evaluate the impact of different treatment regimens on cardiovascular parameters and inflammatory markers.

Main Methods:

  • Retrospective analysis of mild to moderately ill MIS-C patients (n=39) treated between April 2020 and March 2022.
  • Patients received either IVIG monotherapy (Group A) or IVIG plus GC (Group B).
  • Cardiovascular parameters, inflammatory markers, and cardiac imaging were assessed on days 1, 3, and 5.

Main Results:

  • Group B (IVIG + GC) demonstrated significant improvements in heart rate, blood pressure, and temperature by day 1.
  • Biomarkers including CRP, D-dimer, ferritin, fibrinogen, and NT-proBNP, along with lymphocyte counts, improved by day 3 in Group B.
  • Left ventricular ejection fraction improved by day 4-5 in Group B, with no significant difference in hospital stay compared to Group A.

Conclusions:

  • Combined IVIG and GC therapy offers superior short-term outcomes for MIS-C patients compared to IVIG monotherapy.
  • Cardiovascular improvements were observed prior to changes in inflammatory markers, suggesting a rapid systemic effect.
  • This combination therapy may be a more effective treatment strategy for hospitalized MIS-C patients.

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