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Bone marrow transplantation after the Chernobyl nuclear accident
A Baranov1, R P Gale, A Guskova
1Institute of Biophysics of the Ministry of Health and Clinical Hospital, Moscow, U.S.S.R.
The New England Journal of Medicine
|July 27, 1989
Summary
Bone marrow transplants offered some survival benefit after the Chernobyl disaster, but graft-versus-host disease and multi-system radiation effects remained significant risks. Recovery of natural blood cell production was observed in some patients, even with temporary transplanted cell engraftment.
Area of Science:
- Medical Radiation Research
- Hematology
- Transplantation Medicine
Background:
- The 1986 Chernobyl nuclear accident exposed approximately 200 individuals to high doses of total-body radiation.
- Thirteen severely exposed patients received bone marrow transplants to treat radiation-induced damage.
Purpose of the Study:
- To evaluate the outcomes of bone marrow transplantation in Chernobyl survivors exposed to high-dose radiation.
- To assess the role of transplanted stem cells and endogenous hematopoietic recovery in survival.
Main Methods:
- Analysis of survival data and causes of death in 13 bone marrow transplant recipients.
- Evaluation of hematopoietic recovery and graft-versus-host disease incidence in transplant recipients.
Main Results:
- Two patients survived over three years post-transplant, while others succumbed to burns, pneumonitis, graft-versus-host disease, or organ failure.
- Hematopoietic recovery occurred in nine evaluable patients, with six showing transient engraftment before endogenous recovery.
- Graft-versus-host disease was clinically diagnosed in four patients and suspected in two others.
Conclusions:
- While bone marrow transplantation can lead to hematopoietic recovery after severe radiation exposure, it does not guarantee survival due to multi-system radiation effects.
- The potential benefit of transient stem cell engraftment on endogenous hematopoietic recovery remains unclear.
- Graft-versus-host disease presents a significant risk that must be weighed against the potential benefits of transplantation in high-dose radiation scenarios.