COVID-19 Poses Threat for Heart Dysfunction in Children

Highlights:

Multisystem inflammatory syndrome in children (MIS-C) is also known as pediatric inflammatory multisystem syndrome that is associated with hyperinflammatory condition among children post-COVID-19
Children with MIS-C are at risk of heart dysfunction post-COVID-19 infection
20% of children display signs of abnormal heart function requiring a life support machine called “ECMO” to survive

Multisystem Inflammatory Syndrome in Children (MIS-C) has been a mysteriously rare and frightening consequence of COVID-19 and poses a high risk for undergoing a reduction in heart function (or heart dysfunction) among children, as per a study at Children’s Hospital, Michigan. This makes it tough for the heart to pump adequate blood to the body.

Coronavirus
Coronaviruses infect animals, humans, and birds. Human coronaviruses, such as SARS, MERS, and 2019-nCoV cause respiratory distress and even death. The S protein is the infectious agent of the virus.

‘Multisystem inflammatory syndrome in children (MIS-C) is a rare and fatal hyperinflammatory condition among children post-COVID-19 that increases the risk of heart dysfunction. This highlights the need for adults to continue protecting the young children by characterizing the syndrome for better treatments and getting everyone vaccinated.’
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What is MIS-C?

Multisystem inflammatory syndrome in children (MIS-C) is also known as a pediatric inflammatory multisystem syndrome that is temporally associated with hyperinflammatory conditions among children post COVID-19.

MIS-C has features related to those of Kawasaki disease (it involves the skin, mouth, and lymph nodes) and toxic shock syndrome (complication of bacterial infection). Due to the involvement of multiple systems and imprecise mechanisms, it is important to define this syndrome and its risk factors, so that treatment interventions can be adjusted subsequently.

What Type of Covid-19 Mask Should Be Avoided?
Avoid using filters such as a HEPA/MERV or vacuum bags unless they are certified to be fiberglass-free since often such filters on their own may release glass fibers that can be inhaled. Other materials to avoid for masks include loose-knitted material, batting fabric, felt, fleece, or shiny, reusable shopping bags.

Heart Dysfunction with MIS-C

“After they get exposure or get COVID-19, then about three to six weeks later the immune system mounts this very acute, hyperacute reaction and that leads to inflammation of multiple organs in the body including heart,” says Dr. Gautam Singh, lead author of the study and chief of Paediatric cardiology, Children’s Hospital, Michigan.

The study investigated 54 children with MIS-C who were admitted to Children’s Hospital last year. It was found that the majority of the kids’ heart and blood vessels were affected and some even required a life support machine called “Extracorporeal membrane oxygenation(ECMO)” to survive.

Even among the 20% of the children who seemed to fully recover, had signs of abnormal heart function on ultrasounds. Hence they were followed up and by the end of six months, they fully recovered.

Although COVID doesn’t cause serious complexities in most children, the present study stresses the need for adults to continue guarding these young ones by getting themselves and their children vaccinated.

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Other Manifestations of MIS-C

Apart from myocardial dysfunction, other cardiac events like pericarditis (inflammation of the pericardium), valvulitis (inflammation of heart valves), or coronary abnormalities (including ECHO findings or elevated Troponin/NT-proBNP), have also been described by WHO.
Rash or bilateral non-purulent conjunctivitis or mucocutaneous inflammation signs (oral, hands, or feet).
Hypotension or shock.
Coagulopathy (analyzed by PT, PTT, elevated d-Dimers).
Acute gastrointestinal problems like diarrhea, vomiting, or abdominal pain.
Elevated markers of inflammation such as ESR, C-reactive protein, or procalcitonin.

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Managing COVID-19

With unpredictable effects of the coronavirus, the best way to keep it at bay is to follow COVID-appropriate safety practices like wearing a mask, regularly cleaning your hands, and coughing into a bent elbow or tissue along with physical distancing (6 feet about 2 arm's length), that may help evade the severity of COVID-19 infection
Avoid the crowd and keep away from gatherings
Staying home as far as possible in properly ventilated spaces
Seek medical advice at the earliest if any symptoms suspected of COVID-19
Sustain a healthy diet to boost up your immune system

References:

Multisystem inflammatory syndrome in children: A systematic review: Mubbasheer Ahmed et al: E.Clinical Medicine 2021: - (https://doi.org/10.1016/j.eclinm.2020.100527)
Multisystem inflammatory syndrome in children: A systematic review - (https://www.thelancet.com/journals/eclinm/article/PIIS2589-5370(20)30271-6/fulltext)
Multisystem inflammatory syndrome in children and adolescents temporally related to COVID-19 - (https://www.who.int/news-room/commentaries/detail/multisystem-inflammatory-syndrome-in-children-and-adolescents-with-covid-19)

Source-Medindia