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Clinical and laboratory findings at initial diagnosis in pediatric Graves' disease in Taiwan
Chia-Sui Hung1, Luan-Yin Chang, Hsun-Hui Sui
1Division of Pediatric Endocrinology & Metabolism, Department of Pediatrics, Chang Gung Memorial Hospital and Chang Gung Children's Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan.
Insights
Pediatric Graves' disease presentation is similar across prepubertal, pubertal, and postpubertal stages. Early diagnosis is crucial as this thyroid disorder impacts children's growth and development.
Area of Science:
- Pediatric Endocrinology
- Autoimmune Diseases
- Thyroid Disorders
Background:
- Graves' disease is the most common cause of hyperthyroidism in children.
- Understanding disease presentation across different pubertal stages is essential for timely diagnosis and management.
Purpose of the Study:
- To analyze the clinical and laboratory characteristics of pediatric Graves' disease based on pubertal status.
- To identify differences or similarities in disease presentation among prepubertal, pubertal, and postpubertal children.
Main Methods:
- Retrospective analysis of clinical and laboratory data from 106 children with newly diagnosed Graves' disease (1995-2005).
- Patients were categorized into prepubertal, pubertal, and postpubertal groups based on Tanner stages.
- Comparison of clinical symptoms, physical findings, and laboratory results across the three groups.
Main Results:
- No significant differences in clinical presentation or laboratory findings were observed among the prepubertal, pubertal, and postpubertal groups.
- Common symptoms included goiter, heat intolerance, palpitations, and weight loss.
- Frequent physical findings were tachycardia, goiter, tremor, and exophthalmos.
- Elevated free thyroxine (FT4), total thyroxine (TT4), and total triiodothyronine (TT3) with suppressed thyroid-stimulating hormone (TSH) were consistent across groups.
- High prevalences of thyroid-binding immunoglobulin (TBII), anti-microsomal antibodies (AMCA), and thyroglobulin antibodies (TGAB) were noted.
Conclusions:
- The presentation of Graves' disease in children is consistent regardless of pubertal stage.
- Prompt recognition of symptoms is vital for effective management to prevent adverse effects on growth and development.
- Graves' disease can significantly impact a child's overall growth and development if not managed promptly.
Abstract:
We analyzed the clinical and laboratory data of 106 children (17 boys and 89 girls, 11.7 +/- 3.4 years old) with newly diagnosed Graves' disease at Chang-Gung Children's Hospital in Taiwan from 1995 to 2005. The earliest age of disease onset was 3.36 years old, and incidence progressively increased throughout childhood, with a peak at 15 years old. Forty-six (48%) of 95 children had a positive family history of thyroid disorders. We divided the children into three groups according to pubertal stage: prepubertal (Tanner stage 1), 34 (32%); pubertal (Tanner stage 2-4), 13 (12%); and postpubertal (Tanner stage 5), 59 (56%). The most common presentations were diffuse goiter, heat intolerance, sweating, palpitations, and weight loss despite an increase in appetite, but there were no significant differences among the three groups. Neuropsychiatric symptoms such as nervousness, hyperactivity and poor school performance are common features in these children. Height standard deviation score (0.33 +/- 1.35) revealed tall stature (0.39 +/- 1.66 in the prepubertal group, -0.066 +/- 0.63 in the pubertal group, and 0.40 +/- 1.23 in the postpubertal group). Bone maturation also was accelerated in all three groups (bone age/chronological age 1.09 +/- 0.22, 1.07 +/- 0.20, and 1.08 +/- 0.08), but there were no significant differences between groups. Body mass index (standard deviation score) was low in all three groups (-0.49 +/- 1.10, -0.68 .0.63, and -0.13 +/- 0.98), with no significant differences between groups. Tachycardia (96%), goiter (94%), fine tremor (92%), bruit (66%), hypertension (63%), and exophthalmos (60%) were the most frequent symptoms. Laboratory findings yielded undetectable TSH levels (<0.03 microIU/mL), increased FT4 (5.54 +/- 2.26 ng/dL), TT4 (18.37 +/- 4.79 microg/dL), and TT3 (450.4 +/- 202.2 ng/dL), with no significant differences between groups. The prevalences of positive TBII, AMCA, and TGAB were 96%, 95%, and 71%, respectively. In conclusion, we did not find any differences in the presentation of Graves' disease among prepubertal, pubertal, and postpubertal patients. An awareness of symptoms is necessary for prompt diagnosis and management of Graves' disease because the disease can seriously interfere with children's growth and development.
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