[The heterozygote beta-thalassemic patient with regard to radiological hazards].

Since anaemia of varying degree is a quite common finding in heterozygous beta-thalassaemia, a research was done to see if beta-thalassaemia heterozygotes occupationally exposed to long-term continuous external radiation should be more susceptible to haematopoietic damage than non thalassaemic subjects. We examined peripheral haematological findings of 20 beta-thalassaemia heterozygotes previously exposed to a mean of 10.7 mSv, compared with 22 non thalassaemic subjects exposed to 6 mSv, and with 50 not exposed beta-thalassaemia heterozygotes. The obtained results suggest that whole-body external irradiation--with the mean doses reported--does not cause noteworthy changes in beta-thalassaemia heterozygotes.