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Gonadal function after allogenic bone marrow transplantation for thalassaemia
V De Sanctis1, M Galimberti, G Lucarelli
1Department of Paediatrics, Arcispedale S Anna, Ferrara.
Archives of Disease in Childhood
|April 1, 1991
Summary
Bone marrow transplants for thalassemia major can cause significant gonadal damage in adolescent girls and affect hormone production in boys. Long-term monitoring is crucial for hormone replacement therapy in these patients.
Area of Science:
- Pediatric Endocrinology
- Hematology
- Oncology
Background:
- Thalassaemia major requires allogeneic bone marrow transplantation (BMT).
- BMT protocols involve high-dose busulphan and cyclophosphamide chemotherapy.
- Assessing long-term effects on pituitary gonadal function is essential.
Purpose of the Study:
- To evaluate pituitary gonadal function in prepubertal patients post-BMT for thalassaemia major.
- To identify potential long-term endocrine sequelae of BMT conditioning regimens.
Main Methods:
- Study included 30 prepubertal thalassaemia major patients (15 boys, 15 girls) post-BMT.
- Patients received busulphan and cyclophosphamide conditioning.
- Pituitary gonadal function assessed 0.7–5.1 years post-BMT via hormone levels and stimulation tests.
Main Results:
- 80% of girls exhibited increased gonadotrophins, indicating gonadal damage likely from chemotherapy.
- Boys had normal basal FSH and LH, but reduced responses to GnRH and hCG tests.
- Reduced testosterone response observed in boys, potentially due to iron overload or chemotherapy.
Conclusions:
- Chemotherapy in BMT for thalassaemia major can lead to significant gonadal dysfunction in both sexes.
- Vigilant long-term follow-up is necessary to detect and manage hormone deficiencies.
- Hormone replacement therapy may be required for affected patients.