Inflammatory Heart Disease in Multisystem Inflammatory Syndrome

Area of Science:

• Cardiology
• Infectious Diseases
• Pediatrics
• Internal Medicine

Background:

• Multisystemic inflammatory syndrome (MIS) is a hyperinflammatory condition triggered by SARS-CoV-2 infection, manifesting 4-12 weeks post-infection.
• While initially described in children, MIS also affects young adults, predominantly males, presenting with diverse symptoms including cardiac compromise.

Purpose of the Study:

• To provide a comprehensive overview of the pathophysiology, clinical presentation, therapeutic strategies, and prognosis of MIS, with a specific focus on cardiac involvement.
• To highlight the challenges in diagnosing MIS-associated cardiac conditions due to heterogeneous clinical features and overlap with other inflammatory diseases.

Main Methods:

• This is a review article synthesizing current knowledge on Multisystemic Inflammatory Syndrome.
• Literature search and analysis of existing studies on MIS, myocarditis, and pericarditis.

Main Results:

• Cardiac involvement, particularly myocarditis and pericarditis, is a prevalent feature of MIS, leading to significant clinical manifestations such as arrhythmias, heart failure, and cardiogenic shock.
• The diagnostic process for MIS is complex due to its varied presentation and similarity to other hyperinflammatory conditions.
• Limited evidence exists regarding the efficacy of anti-inflammatory treatments and the long-term outcomes for patients with MIS.

Conclusions:

• Cardiac involvement significantly impacts the prognosis of patients with Multisystemic Inflammatory Syndrome.
• Further research is needed to establish effective treatment protocols and understand the long-term prognosis of MIS, especially concerning cardiac complications.