Preferred Label : Multisystem Inflammatory Syndrome in Adults;
NCIt synonyms : MIS-A;
NCIt related terms : Multisystem Inflammatory Syndrome (MIS); Multisystem inflammatory syndrome in adults (MIS-A);
NCIt definition : A rare syndrome found in adults with positive test results for SARS-CoV-2 by polymerase
chain reaction or antibody assays indicating recent infection that is marked by cardiovascular,
gastrointestinal, dermatologic, and neurologic symptoms without severe respiratory
illness. The most common signs and symptoms that have been reported to date include
fever, low blood pressure, abdominal pain, vomiting, diarrhea, neck pain, rash, chest
pain, and tiredness not attributable to other infections.;
Alternative definition : ACC/AHA: A patient aged greater than or equal to 21 y hospitalized for greater than
or equal to 24 h, or with an illness resulting in death, who meets the following clinical
and laboratory criteria. The patient should not have a more likely alternative diagnosis
for the illness (e.g., bacterial sepsis, exacerbation of a chronic medical condition).
I. Clinical Criteria: Subjective fever or documented fever (greater than or equal
to 38.0 degrees C) for greater than or equal to 24 h prior to hospitalization or within
the first 3 d of hospitalization* and at least 3 of the following clinical criteria
occurring prior to hospitalization or within the first 3 d of hospitalization*. At
least 1 must be a primary clinical criterion: A. Primary clinical criteria: 1. Severe
cardiac illness includes myocarditis, pericarditis, coronary artery dilatation/aneurysm,
or new-onset right or left ventricular dysfunction (LVEF less than 50%), 2nd/3rd degree
AV block, or ventricular tachycardia. (Note: cardiac arrest alone does not meet this
criterion) 2. Rash and nonpurulent conjunctivitis B. Secondary clinical criteria:
1. New-onset neurological signs and symptoms: includes encephalopathy in a patient
without prior cognitive impairment, seizures, meningeal signs, or peripheral neuropathy
(including Guillain-Barré syndrome) 2. Shock or hypotension not attributable to medical
therapy (e.g., sedation, renal replacement therapy) 3. Abdominal pain, vomiting, or
diarrhea 4. Thrombocytopenia (platelet count less than 150,000/microliter) II. Laboratory
evidence: The presence of laboratory evidence of inflammation and SARS-CoV-2 infection.
A. Elevated levels of at least 2 of the following: C-reactive protein, ferritin, IL-6,
erythrocyte sedimentation rate, procalcitonin B. A positive SARS-CoV-2 test for current
or recent infection by RT-PCR, serology, or antigen detection NOTE: *These criteria
must be met by the end of hospital day 3, where the date of hospital admission is
hospital day 0.;
NCI Metathesaurus CUI : CL1646825;
Origin ID : C178502;
UMLS CUI : C5439527;
Automatic exact mappings (from CISMeF team)
- Currated CISMeF NLP mapping
- Semantic type(s)
- UMLS correspondences (same concept)
- concept_is_in_subset
