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Cataract development in adult bone marrow transplant recipients
B M Calissendorff1, B Lönnqvist, M el Azazi
1Department of Ophthalmology, St Erik's Eye Hospital, Stockholm, Sweden.
Insights
Bone marrow transplant patients receiving radiation conditioning developed cataracts, while those without radiation did not. This highlights radiation as a key factor in post-transplant cataract development.
Area of Science:
- Ophthalmology
- Hematology
- Oncology
Background:
- Bone marrow transplantation (BMT) is a critical treatment for hematological malignancies and aplastic anemia.
- Cataract development is a potential long-term complication following BMT.
- Understanding risk factors for post-BMT cataracts is crucial for patient management.
Purpose of the Study:
- To investigate the incidence and risk factors of cataract development in adult patients after bone marrow transplantation.
- To determine the correlation between specific conditioning regimens and cataract formation.
Main Methods:
- Prospective study of 99 adult patients with at least one year survival post-BMT.
- Patients were divided into aplastic anemia (n=10) and hematological malignancies (n=89) groups.
- Conditioning regimens included irradiation, cytostatic drugs, and sometimes steroids; follow-up averaged 3.9 years.
Main Results:
- No cataracts were observed in the 10 aplastic anemia patients (no irradiation).
- All patients with hematological malignancies (received irradiation) developed cataracts within 4 years.
- Lens opacities were evident in most malignancy patients by 2 years; 39 underwent cataract surgery.
Conclusions:
- Cataract development after bone marrow transplantation is strongly correlated with irradiation conditioning.
- Aplastic anemia patients not receiving irradiation did not develop cataracts.
- While other treatments were used, radiation appears to be the primary driver of post-BMT cataracts.
Abstract:
In a prospective study, adult patients treated with bone marrow transplantation were examined with respect to cataract development. There were 99 patients with a survival of at least one year. Ten of them had aplastic anemia and the rest had various hematological malignancies. Mean follow-up time was 3.9 years (range 1-10). All in the hematological malignancies group but none in the aplastic anemia group, were conditioned with irradiation. Cytostatic drugs were administered in all cases. Depending on the type of disease and its reaction to bone marrow transplantation, steroid treatment was sometimes indicated. Cataract did not occur in any of the 10 patients treated for aplastic anemia, whereas all patients with hematological malignancies had developed cataract after 4 years' observation. Most patients in the hematological malignancies group already showed lens opacifications after 2 years. Cataract surgery on the first eye was performed in 39 cases, a median of 3.7 years after bone marrow transplantation. Cataract development was clearly correlated to radiation. No relationship was found to other conditioning treatments, although a synergistic effect is possible.
