Immunology of Pediatric MIS-C and Updates on Mechanical Ventilation

This video, from a World Shared Practice Forum, presents two crucial topics regarding the care of children with COVID-19 in Pediatric Intensive Care Units (PICUs):

1. Immunology of Multisystem Inflammatory Syndrome in Children (MIS-C) (0:22–13:10)

Dr. Petter Brodin presents his research on MIS-C. He emphasizes that although MIS-C is a hyperinflammatory condition, its plasma protein profile differs significantly from both Kawasaki disease and acute COVID-19 in adults.

He found that MIS-C patients lack antibodies against common cold coronaviruses and exhibit autoantibodies targeting casein kinases, a promising clue for understanding the disease's underlying mechanisms.

Regarding treatment, he favors a cautious approach using intravenous immunoglobulins (IVIG) and anakinra, while remaining cautious about the immediate use of corticosteroids due to concerns that they may mask an underlying bacterial infection.

2. Mechanical Ventilation Update (13:33–56:22)

Drs. Robinder Khemani, Heidi Flori, and Peter Rimensberger discuss ventilation strategies for children with COVID-19. They emphasize that these patients should not automatically be managed as typical Acute Respiratory Distress Syndrome (ARDS) cases.

Clinical approach: They distinguish between the L phenotype (normal lung compliance, lower recruitability) and the H phenotype (reduced compliance, more similar to classic ARDS).

Intubation and protection: The decision to intubate should be guided by the patient's work of breathing in order to prevent patient self-inflicted lung injury (P-SILI). They recommend the use of viral filters, closed suction systems, and strict caution regarding aerosol-generating procedures.

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