Children with oligoarticular juvenile idiopathic arthritis are at considerable risk for growth retardation
Shai Padeh1, Orit Pinhas-Hamiel, Dorith Zimmermann-Sloutskis
1Department of Pediatrics, Sackler School of Medicine, Tel Aviv University, Israel. shay.pade@sheba.health.gov.il
Insights
Growth retardation affects a significant portion of children with persistent oligoarticular juvenile idiopathic arthritis (JIA). Elevated erythrocyte sedimentation rate is a key predictor of this growth impairment.
Area of Science:
- Pediatric Rheumatology
- Growth and Development
- Clinical Immunology
Background:
- Persistent oligoarticular juvenile idiopathic arthritis (JIA) can impact a child's growth.
- Intra-articular corticosteroid injections (IACSI) are a common treatment modality.
- Understanding growth patterns is crucial for managing JIA patients.
Purpose of the Study:
- To evaluate linear growth in persistent oligoarticular JIA patients receiving IACSI.
- To compare growth outcomes between IACSI alone and combination therapy (IACSI + DMARDs).
- To identify predictors of growth retardation in this population.
Main Methods:
- Retrospective chart review of 95 patients with persistent oligoarticular JIA.
- Analysis of height standard deviation scores (SDS) correlated with disease course.
- Comparison of growth between patients treated with IACSI alone versus IACSI plus disease-modifying antirheumatic drugs (DMARDs).
Main Results:
- 35.8% of patients experienced growth retardation (Δ z-score <-0.3), with 11.6% having severe retardation (Δ z-score <-1.0).
- Patients receiving IACSI plus DMARDs showed a higher incidence of growth retardation compared to IACSI alone (44.4% vs 30.6%).
- Elevated erythrocyte sedimentation rate (≥ 40 mm/1st h) was a significant predictor of growth retardation.
Conclusions:
- A substantial number of children with persistent oligoarticular JIA suffer from growth retardation.
- Severe growth retardation is observed in a minority of these patients.
- Elevated erythrocyte sedimentation rate is a reliable indicator for predicting growth retardation risk in JIA.
Objective:
To assess linear growth in patients with persistent oligoarticular juvenile idiopathic arthritis (JIA) treated by intra-articular corticosteroid injections (IACSI).
Study Design:
Data were obtained from a retrospective review of the charts of 95 patients with persistent oligoarticular JIA (69 females). The mean age at first visit was 4.9 ± 3.4 years, with follow-up of 6 ± 3.7 years. The height SDS for chronologic age (z-score) was correlated with the clinical course of the disease and compared among patients treated by IACSI alone (group I) or by a combination of disease-modifying antirheumatic drugs (DMARDs) (group II).
Results:
Growth retardation was found in 35.8% of patients (Δ z-score <-0.3), including 11.6% with severe growth retardation (Δ z-score <-1.0). Growth retardation was found in a smaller proportion of patients in group I (any growth retardation, 30.6%; severe growth retardation, 6.5%) than in patients in group II (any growth retardation, 44.4%; severe growth retardation, 21.2%; P < .05). Elevated erythrocyte sedimentation rate values (≥ 40 mm/1sth) indicated a significantly higher risk for growth retardation. All other clinical variables had no association with growth retardation.
Conclusion:
A significant proportion of patients with persistent oligoarticular JIA have growth retardation and a minority have severe growth retardation. Only elevated erythrocyte sedimentation rate values were proven to be a good predictor of risk for growth retardation.
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