Journal Information
Vol. 28. Issue. 2.April 2008
Pages 123-238
Vol. 28. Issue. 2.April 2008
Pages 123-238
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Is it necessary to measure anti-hepatitis B antibodies every six months instead of every twelve months in patients on hemodialysis?
Pasar de anuales a semestrales los controles de anticuerpos anti hepatitis B a pacientes en hemodiáisis. ¿Aporta información de interés?
Pedro Angelet Figaa, M. T.. Comptea, C.. Gallegoa, C.. Aguilarb
a Unidad Nefrol??gica de Tortosa, Hospital Santa Creu, Tortosa, Espa??a,
b Medicina Preventiva y Salud P??blica, Hospital Santa Creu, Tortosa, Espa??a,
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To the editor:

All patients on hemodialysis with negative serology for hepatitis B virus must receive the vaccine.1-4

In 1989, we initiated a vaccination protocol for patients on hemodialysis. A double dose of Engerix B® was intramuscularly administered in the deltoid muscle on months 0, 1, and 6. We annually measured the antibody levels and revaccinated with double doses those patients who did not respond or if the antibody levels were < 10 mIU/mL.

The anti-HBs antibodies were measured with a Microparticles Enzymeimmune  analysis (MEIA). We defined seroconversion in the presence of an antibody titer > 10 mIU/mL.

The protocol was maintained until 2003. That year we changed to 4 double doses of the vaccine. The patients that were in the previous protocol of 1989 went on unchanged.

In this population the response rate is low, sometimes lower than 50%. Some patients maintain only the protection for short periods and it is recommended to annually determine the antibody levels. Some authors use other vaccination programs or administer co-adjuvants to improve the immunological response.5-8

Hepatitis B vaccination and antibodies control requires dedication, time, and follow-up from physicians and nurses. Epidemiological surveys present patients on dialysis not vaccinated or in which the antibody levels were not measured. In 1995, only 35% of the patients in the USA had received the vaccine.9-11

According to the protocol of 1989, we determined in the first annual control serological markers and anti-HBs antibodies and afterwards we strictly proceeded to vaccination.

In 2004, we began to measure the levels of anti-HBs antibodies every six months. In 2007, we had 31 patients on the protocol of 1989, and antibody controls every 6 months and every 12 months. We could observe the following findings:

Six patients (19.35%) did not respond in any control either to the first vaccination or revaccinations.

The remaining 25 patients (80.65%) had in at least one control anti-HBs antibodies higher than 10 mIU/mL. Controls at six months were not different to annual controls in 17 of these patients (54.8%).

In 8 patients of the group of responders (table I), the controls performed at 6 months yielded information not obtained in the annual determination. In 4 of these patients (12.9%) the antibodies had already decreased below the protective range and the patients could benefit from a revaccination 6 months before the annual control.

In 7 patients (22.5%), the controls at six months after revaccination showed protective levels of antibodies, but at the annual control they already were below 10 mIU/mL. These results led to consider the patients as non-responders. Moreover, 3 of the 7 patients never had protective antibody levels on annual controls. Had not the controls at 6 months be performed, they would have been considered as non-responders to vaccination.

Antibody controls every 6 months disclose some patients that respond to vaccination but would not be detected only on annual controls. Besides, they help identifying a group of patients in whom the antibody levels have already diminished below 10 mIU/mL and could benefit from a semestral vaccination protocol.

Peces R: Inmunizaci??n frente a la hepatits B y persistencia de memoria inmunol??gica. Nefrolog??a 2002; Vol. XXII (6): 503-506.
Complicaciones cr??nicas de la insuficiencia renal cr??nica y hemodi??lisis. Normas de Actuaci??n Cl??nica de la SEN. Madrid. P. 113, 1999.
European best practice guidelines for haemodialysis. Section VI. Haemodialysisassociated infection. Nephrol Dial Transplant 2002; 17 (supl. 7): 72-87.
Barril G, Gonz??lez Parra E, Alc??zar R, Arenas D, Campistol JM, Caramelo C, Carrasco M, Carre??o V, Espinosa M, Garc??a Valdecasas J, G??rriz JL, L??pez MD, Mart??n L, Ruiz P, Teruel JL. Gu??a sobre Enfermedades V??ricas en Hemodi??lisis. Nefrolog??a 2004; XXIV (N?? Extraordinario 2): 43-66.
Bommer J, Ritz E, Andrassy K. Effect of vaccination schedule and dialysis hepatits B vaccination response in uraemic patients. Proc Eur DIAL Transplant Assoc 1983; 20: 161-168. [Pubmed]
Bruguera M, Rodicio JL, Alc??zar JM, Oliver A, Del R??o G, Esteban Mur R. Effects of different dose levels and vaccination schedules on inmune response to a recombinant DNA hepatitis B vaccine in HD patients. Am J Nephrol 1990; 8: 547.
Teruel JL, Fern??ndez Lucas M, Mateos ML, Ortu??o J. Pauta r??pida de vacunaci??n contra la hepatitis B en enfermos con insuficiencia renal cr??nica. Nefrolog??a 2005; 25 (3): 338-339. [Pubmed]
Chow KM Law MC, Leung CB, Szeto CC; Li PK. Antibody response to hepatitis B vaccine in end-stage renal disease patients. Nephron Clin Pract 2006; 103 (3): 89-93.
K??hler H. Hepatitis B immunization in dialysis patients-is it worthwhile? Nephrol Dial Transplant 1994; 9: 1719. [Pubmed]
Jibani MM, Heptonstall J, Walker AM, Bloodworth LO, Howard AJ Hepatitis B immnunization in UK renal units: failure to put policy in to practice. Nephrol Dial Transplant 1994; 9: 1765. [Pubmed]
Tokars JI y cols. National surveillance of hemodialysis associated diseases in the United Status, 1995. ASAIO J 1998; 44: 98-107. [Pubmed]
Nefrología (English Edition)

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