Mehndiratta et al |
8 yo |
F |
Progressive deformity of elbows and knees |
+ |
– |
Elevated muscle enzymes, muscle biopsy, EMG |
Mucosal ulcerations, dysphagia, GI bleed |
Prednisolone |
Death due to septicemia and DIC |
Saygi et al |
4 yo |
M |
Similar episode 6 months prior, resolved spontaneously; recent URI |
+ |
+ |
Elevated muscle enzymes, EMG, MRI |
– |
Prednisolone, methotrexate |
Improvement in symptoms |
Jimenez et al |
13 yo |
F |
Previously healthy |
+ |
– |
Elevated muscle enzymes, muscle biopsy, EMG |
– |
IVMP, prednisolone, IVIG, cyclophosphamide, chloroquine, methotrexate |
Improvement in symptoms |
Wakhlu et al |
3.5 yo |
M |
Previously healthy |
+ |
– |
Elevated muscle enzymes, muscle biopsy |
– |
Prednisolone, methotrexate |
Improvement in symptoms |
Sharma et al |
8 yo |
M |
Previously healthy |
+ |
– |
Elevated muscle enzymes, MRI |
– |
IVMP, prednisolone, methotrexate |
Improvement in symptoms |
Shelley et al |
8 yo |
M |
Previously healthy |
+ |
+ |
Elevated muscle enzymes, EMG, muscle biopsy, myositis antibodies (Jo-1 IgG, anti-Mi2) |
Hypotension requiring ICU level care and catecholamine support (dopamine, norepinephrine) |
IVMP, prednisolone, IVIG, azathioprine |
Improvement in symptoms |
Zedan et al |
3.5 yo |
M |
Recent URI |
+ |
+ |
Elevated muscle enzymes, EMG, MRI |
– |
IVMP, prednisolone, IVIG, azathioprine |
Improvement in symptoms |
Mitchell et al |
7 yo |
F |
Previously healthy |
+ |
+ |
Elevated muscle enzymes, elevated factor VIII related antigen, EMGs, MRI |
– |
IVMP, prednisolone, methotrexate, IVIG, hydroxychloroquine |
Improvement in symptoms |
Karabiber et al |
14 yo |
M |
Previously healthy |
+ |
+ |
Elevated muscle enzymes, EMG, MRI |
– |
IVMP, prednisolone |
Improvement in symptoms |
Chandrakasan et al |
4 yo |
M |
Recent URI (parvovirus PCR positive) |
+ |
+ |
Elevated muscle enzymes, EMG, MRI |
– |
IVMP, prednisolone, methotrexate |
Improvement in symptoms |
Nickavar et al |
7 yo |
M |
Initially treated for nephrotic syndrome |
+ |
+ |
Elevated muscle enzymes, EMG |
Seizures, renal failure (creatinine 8, renal biopsy with FSGS), pulmonary edema requiring hemodialysis |
IVMP, IVIG, plasmapheresis |
Unknown |