Full text in pdf format

 

Prenatal diagnosis of sickle-cell anemia, perceptions of professionals and patients

 

 

Roberto Benedito de Paiva e Silva; Antonio Sérgio Ramalho

Departamento de Genética Médica, Faculdade de Ciências Médicas, UNICAMP, Caixa Postal 6111, 13081-970 Campinas, SP, Brasil. Send correspondence to A.S.R.

 

 


ABSTRACT

Although prenatal diagnosis of sickle-cell anemia has been facilitated by DNA analysis techniques, there is an ethical controversy about the validity of this procedure. We surveyed 59 geneticists, 55 hematologists and 52 adult patients in Brazil, on their perception of the disease. These patients regularly received medical and psychosocial guidance at the UNICAMP Hemocenter. Most consider their quality of life to be satisfactory despite the high level of discomfort caused by the disease. Although a majority of the geneticists (66%) and hematologists (67%) considered the probability of a patient with sickle-cell anemia leading a productive and socially adjusted life high when properly treated, most (59% of the geneticists and 51% of the hematologists) considered prenatal diagnosis to be an important resource for prevention of the disease. Nearly all patients would seek prenatal diagnosis for their children. Of these, 3/4 would prepare for early treatment and 1/4 would opt for abortion.

Keywords: prenatal diagnosis; sickle-cell; anemia; professionals; patients.


 

 

REFERENCES

Bowman, J.E. (1991). Prenatal screening for hemoglobinopathies. Am. J. Hum. Genet. 48: 433-438.

Chang, J.C. and Kan, Y.W. (1981). Antenatal diagnosis of sickle cell anaemia by direct analysis of the sickle mutation. Lancet 2: 1127-1129.

Costa, FE, Tavella, M.H. and Zago, M.A. (1989). Deletion type of alpha-thalassemia among Brazilian patients with sickle cell anemia. Rev. Bras. Genet. 12: 605-611.

Costa, F.F., Gesteira, F., Carvalho, M.H., Miranda, S.R.P., Queiroz, I.L., Arruda, V.R., Gonçalves, M.S., Femandes, D., Nascimento, M., Saad, S.T.O. and Sonati, M.F. (1992). Beta-S cluster haplotypes in Brazil: the CAR type predominates in the Southeast and the Benin type in Northeast. Abstracts of the 24th. Congress of the Internacional Society of Haematology, pp. 196.

Conner, B.J., Reyes, A.A., Morin, C., Itakura, K., Teplitz, R.L. and Wallace, R.B. (1983). Detection of sickle cell beta-S-globin allele by hybridization with synthetic oligonucleotides. Proc. Natl. Acad. Sci. USA 80: 278-282.

Damlouji, R.F., Cohen, K., Georgopoulos, A. and Folstein, M. (1982). Social disability and psychiatric morbidity in sickle cell anemia and diabetes patients. Psychosomatics 23: 925-931.

Geever, R.F., Wilson, L.B., Nallaseth, F.S., Milnér, P.F., Bittner, M. and Wilson, J.T. (1981). Direct identification of sickle cell anemia by blot hybridization. Proc. Natl. Acad. Sci. USA 78: 5081-5085.

Goossems, M., Dumez, Y., Kaplan, L., Lupker, M., Chabret, C., Hendon, R. and Rosa, J. (1983). Prenatal diagnosis of sickle cell anemia in the first trimester of pregnancy. N. Engl. J. Med. 309: 831-833.

Granda, H., Gispert, S., Dorticos, M. and Martinez, G. (1991). Cuban programme for prevention of sickle cell disease. Lancet 337: 152-153.

Hutz, M.H. (1981). História natural da anemia falcifonne em pacientes da região metropolitana do Rio de Janeiro. Doctoral Thesis, Universidade Federal do Rio Grande do Sul, Porto Alegre.

Leavell, S.R. and Ford, C.V. (1983). Psychopathology in patients with sickle cell disease. Psychomatics 24: 23-37.

Modell, B. (1990). Etica del diagnostico prenatal y asesoramiento genetico. Foro Mundial de la Salud 11: 179-186.

Nora, J.J. and Fraser, F.C. (1985). Genética Médica. 2nd edn. Guanabara-Koogan, Rio de Janeiro.

Orkin, S.H., Little, P.F., Kazazian, H.H. and Boehm, C.C. (1982). Improved detection of the sickle cell mutation by DNA analysis. Application to prenatal diagnosis. N. Engl. J. Med. 307: 32-36.

Paiva e Silva, R.B. (1992). Alguns aspectos psicossociais da anemia falciforme no Brasil. Master's Thesis, Faculdade de Ciências Médicas, UNICAMP, Campinas.

Powars, D., Chan, L.S. and Schroeder, W.A. (1990). The variable expression of sickle cell disease is genetically determined. Seminars in Hematology 27: 360-376.

Ramalho, A.S. (1986). As Hemoglobinopatias Hereditárias. Um Problema de Saúde Pública no Brasil. Ed. Soc. Bras. Genet., Ribeirão Preto.

Rowley, P.T., Loader, S., Sutera, C.J., Walden, M. and Kozya, A. (1991). Prenata1 screening for hemoglobinopathies. I. A prospective regional trial. Am. J. Hum. Genet. 48: 439-446.

Svarch, E., Espinosa, E., Hernandez, P. and Ballester, J. (1991). Resultados de los estudios realizados in Cuba sobre la hemoglobinopatia S. Sangre 36: 37-42.

Trinca, W. (1984). Diagnóstico Psicológico: Prática Clínica. Editora Pedagógica e Universitária, São Paulo.

Zago, M.A., Costa, F.F., Ismael, S.J. and Bottura, C. (1983). Enfermidades frepanociticas en una población brasileña. Sangre 28: 191-198.

Zago, M.A., Figueiredo, M.S. and Ogo, S.H. (1991). 0 haplótipo Bantu predomina entre brasileiros com anemia falciforme. Rev. Bras. Genet. 44 (Supl): 153.

Zago, M.A., Figueiredo, M.S. and Ogo, S.H. (1992). Bantu beta-S cluster haplotype predominates among Brazilian Blacks. Am. J. Phys. Anthropol. 88: 295-298.