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A retrospective study of 13 Oriental children with juvenile dermatomyositis
Insights
This study on juvenile dermatomyositis (JDM) in Oriental children found most cases have a gradual onset and good outcomes. Diagnosis delays were common due to subtle early symptoms.
Area of Science:
- Pediatrics
- Rheumatology
- Dermatology
Background:
- Juvenile dermatomyositis (JDM) is a rare autoimmune disease affecting children.
- Understanding JDM presentation and outcomes in diverse ethnic groups is crucial for effective management.
Purpose of the Study:
- To describe the clinical characteristics, presentation, and outcomes of juvenile dermatomyositis in Oriental children.
- To compare findings in this cohort with existing literature from Western populations.
Main Methods:
- Retrospective review of hospital records for 13 Oriental children diagnosed with JDM over a 10-year period.
- Data analysis included demographics, clinical features, diagnostic delays, treatment, and outcomes.
- Comparison with international JDM studies.
Main Results:
- A female preponderance (3.3:1 ratio) was observed, with an equal sex ratio in children under 5.
- The majority (92%) of cases presented insidiously with a good prognosis.
- Diagnosis was frequently delayed due to late or absent muscle weakness; one patient with acute onset and refractory disease died.
Conclusions:
- Juvenile dermatomyositis in Oriental children shares many similarities with Western cohorts, including insidious onset and generally good outcomes.
- Delayed diagnosis is a significant issue, highlighting the need for increased awareness of subtle JDM presentations.
- While most cases are manageable, rare severe presentations can occur despite aggressive treatment.
Abstract:
This is a retrospective study of 13 Oriental children with juvenile dermatomyositis (JDM). We reviewed data found in the hospital records of children diagnosed to have definite (n = 4), probable (n = 7) and possible (n = 2) JDM who presented over a 10-year period at 4 centres in Singapore and compared our results with the experience of others. We found an overall female preponderance (female to male ratio of 3.3:1) but an equal sex ratio in children below 5 years of age. The majority (92%) had insidious onset and good outcome. Diagnosis was often delayed because of the insidious onset, and because weakness occurred late, was mild or absent. Only one child had an acute presentation and refractory course. She died despite aggressive therapy. Clinical features, complications and mainstay medication used were similar to Western studies.