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The aim of this observational study is to assess whether Multisystem Inflammatory Syndrome (MIS-C) in children affects their quality of life. The investigators will examine whether there is a correlation between paediatric mortality prediction scoring systems, specific clinical and laboratory indicators, and whether some of these can predict the level of quality of life in children 24 months after hospital discharge.
The primary questions are:
Do children who survived MIS-C have a poorer quality of life 24 months after the illness compared to their peers? Can investigators identify prognostic indicators to create preventative strategies for MIS-C?
The investigator will compare the quality of life in participants who survived MIS-C with a control group. The quality of life will be measured using a validated questionnaire.
In the first phase, data from medical records will be collected. In the second, prospective part of the study, participants, healthy peers, and their parents or guardians will be asked to complete a questionnaire about quality of life.
Full description
The COVID-19 pandemic has led to high morbidity and mortality in adults. Still, in children, the clinical picture and course of the disease are generally milder, and the overall estimated mortality rate is approximately 0.08%. However, it has been observed that in children after recovering from COVID-19, regardless of the severity of the clinical picture, a severe condition may occur, characterized by an inadequate hyper-inflammatory immune response with possible repercussions on various organ systems. Ultimately, the condition was recognised as a specific clinical entity which was named Multisystem Inflammatory Syndrome in Children (MIS-C). Guidelines for diagnosing a case of MIS-C have evolved. According to the current guidelines of the American Academy of Paediatrics, the following criteria must be met: 1. An individual aged <21 years and in the absence of a more likely alternative diagnosis; 2. Subjective or documented fever (T >38.0°C); 3. Clinical course requiring hospitalisation or leading to death; 4. C-reactive protein (CRP) >3.0 mg/dL; 5. New-onset manifestations that include >2 of the following categories: a) Cardiac: coronary artery dilation/aneurysm, left ventricular ejection fraction <55%, or troponin elevated above normal; b) Shock; c) Mucocutaneous: rash, oral mucosal inflammation, conjunctivitis/conjunctival injection, or extremity findings (erythema, edema); d) Gastrointestinal: abdominal pain, vomiting, or diarrhea; e) Hematologic: platelet count <150,000/µL, absolute lymphocyte count <1000/µL. 5. Detection of SARS-CoV-2 nucleic acid/antigen up to 60 days before or during hospitalisation or in a postmortem specimen, OR detection of antibodies associated with the current illness, OR close contact with a confirmed/probable case of COVID-19 within 60 days before hospitalisation. The clinical picture is very diverse, and most often affects the gastrointestinal, respiratory, cardiocirculatory, and haematological systems, as well as the skin and mucous membranes; however, any organ or organ system can be affected.
The therapeutic approach is based on the use of organ-specific supportive and immunomodulatory therapy. Treatment guidelines recommend the use of intravenous immunoglobulins (2 g/kg), then corticosteroids (2-30 mg/kg/day methylprednisolone, depending on the severity of the disease) and finally biological therapy (most often anakinra, 2-10 mg/kg/day), with thromboprophylaxis with aspirin. Although these are mostly previously healthy children, it is described in research that even up to 80% of them required treatment in JILD, and in certain patients, it led to death. Since in a large part of these patients there is involvement of the heart, which includes ventricular dysfunction, enlargement or aneurysm of the coronary artery and arrhythmias, there is a need for longer-term follow-up due to the unclear prognosis and the risk of progression of cardiac manifestations, and in a smaller number of patients, the persistence of cardiac dysfunction has been described even six months after discharge from the hospital. Although less common, neurological manifestations are part of the clinical picture of MIS-C and carry a significant risk of chronic morbidity and mortality; Neurological sequelae and long-term neurodevelopmental outcomes are currently unknown and require further research. Longer-term follow-up of children with MIS-C is of interest. Even in cases of recovery, given the broad spectrum of the disease, its involvement of nearly all organ systems, and the variable clinical presentation, there is a need for regular and continuous follow-up and contact with medical care.
Aim and Purpose of the Research This scientific research hypothesises that children suffering from MIS-C have a worse quality of life compared to their peers, as measured by validated HRQoL questionnaires, 24 months after hospital discharge.
The second hypothesis is that the value of the PRISM III/IV and PIM-3 scores in children suffering from MIS-C correlates with the outcome and quality of life measured 24 months after hospital discharge.
Specific research objectives:
Participants
In the first part of the study, the participants will be:
In the second part of the study, the participants will be:
Only children who do not meet any of the exclusion criteria and whose parents or legal guardians, or themselves (if older than twelve years of age), have signed an informed consent form will be included in the study. The exclusion criteria will be:
Methods:
The first part of the study will include approximately 85 children. Data will be collected and stored in the hospital information system (BIS) within 24 hours of patient admission from recorded clinical and laboratory parameters that are part of routine processing when a patient is admitted to the ward. For each child in the specified period, the risk of mortality will be assessed using two different risk assessment scoring systems: PIM III (Pediatric Index of Mortality) and PRISM III/IV (Pediatric RISk of Mortality). The data will be entered into the existing program for calculating the mortality risk for each scoring system. The data will be entered at the Rijeka Clinical Hospital by the principal investigator and at the "Dr. Fran Mihaljević" Clinic by a pediatric infectious disease specialist, who is also a co-investigator in the research work. The data will be anonymous and entered into the database under a code.
In the second part of the study, the quality of life of all surviving children with MIS-C will be examined, for at least 24 months from discharge from the hospital, and compared with the quality of life of healthy children of the same age and sex to establish the credibility of the data obtained and enable the possibility of comparison. The quality of life will be examined using a questionnaire, which will be completed depending on age, by parents or guardians, and children over five years old. The questionnaire "Pediatric Quality of Life Inventory™ Generic Core Scales (PedsQL™ Generic Core Scales)" will be used. The questionnaire examines and obtains answers related to the areas of physical health and activity, emotional health, social activities and school/kindergarten activities. The answers obtained are reverse-scored and linearly transformed into a scale, so that higher scores indicate better quality of life. The questionnaire has been validated in both English and Croatian, and permission from the author has been obtained for its use in Croatian. Data will be collected by the principal investigator either during regular check-ups at the Clinic or by the responsible paediatricians. After regular check-ups for at least 24 months following discharge from MIS-C, all parents and children will be offered a questionnaire in the clinics, regardless of whether the child is chronically ill or healthy; that is, all children will be treated equally. The questionnaires are designed for a heterogeneous group of children and demonstrate exceptional reliability in distinguishing between healthy and acutely and chronically ill children. The control group will include healthy children of the same age and gender, without acute or chronic diseases. This means they have no history of acute hospitalisations in hospitals for any reason and no information on chronic health problems, including chronic childhood diseases and chronic physical disabilities. Examples of chronic diseases include, among others, childhood asthma, cystic fibrosis, congenital heart defects, diabetes, epilepsy, chronic inflammatory bowel disease, celiac disease, rheumatological diseases such as juvenile idiopathic arthritis, and psychiatric disorders (e.g., attention deficit hyperactivity disorder and depression).
The participants will be recruited by the primary care physician, who is also the responsible physician for the control patient treated by MISC, through random selection from the hospital records of children of the desired age. The responsible physician will then contact the parent of the potential healthy subject and offer them the opportunity to participate in the study. The time to complete the questionnaire is five to ten minutes. The obtained data will then be analysed to correlate the values of the mortality scoring system parameters with the quality of life assessment data and to determine whether a positive correlation can be observed.
Enrollment
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Inclusion criteria
Exclusion criteria
Examples of chronic diseases include:
Examples of chronic physical disabilities include:
85 participants in 2 patient groups
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Data sourced from clinicaltrials.gov
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