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Heart transplantation in Chagas' disease : 10 Years after the initial experience

DE CARVALHO, V. B ; SOUSA, E. F. L ; VILA, J. H. A ; DA SILVA, J. P ; CAIADO, M. R ; DE R. ARAUJO, S. R ; MACRUZ, R ; ZERBINI, E. J

Circulation (New York, N.Y.), 1996-10, Vol.94 (8), p.1815-1817 [Peer Reviewed Journal]

Hagerstown, MD: Lippincott Williams & Wilkins

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  • Title:
    Heart transplantation in Chagas' disease : 10 Years after the initial experience
  • Author: DE CARVALHO, V. B ; SOUSA, E. F. L ; VILA, J. H. A ; DA SILVA, J. P ; CAIADO, M. R ; DE R. ARAUJO, S. R ; MACRUZ, R ; ZERBINI, E. J
  • Subjects: Adult ; Biological and medical sciences ; Cardiology. Vascular system ; Chagas Cardiomyopathy - surgery ; Female ; Follow-Up Studies ; Graft Rejection ; Heart ; Heart Transplantation ; Humans ; Infection ; Longitudinal Studies ; Male ; Medical sciences ; Middle Aged ; Myocarditis. Cardiomyopathies ; Postoperative Complications ; Prospective Studies ; Recurrence
  • Is Part Of: Circulation (New York, N.Y.), 1996-10, Vol.94 (8), p.1815-1817
  • Notes: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Description: Heart transplantation (HT) as a therapeutic option for end-stage chronic Chagas' heart disease (CCHD) is controversial. Reactivation of Trypanosoma cruzi infection and recurrence of the disease in the allograft are likely to occur. Furthermore, active myocarditis has been reported to predispose patients to an increased incidence and severity of rejection. We prospectively investigated the long-term follow-up of 10 patients with CCHD who underwent HT. Immunosuppression was based on cyclosporine A and azathioprine. T cruzi reactivation was prevented with benzonidazole. Besides allograft rejection surveillance, T cruzi infection was monitored through blood tests, myocardial biopsies, and serological tests. Over a mean follow-up period of 34 +/- 38 months (range, 73 to 124 months), 7 patients are alive and in NYHA functional class I. Life expectancy was 78% for the second year and 65% for 10 years. Rejection was less frequent in chagasic than in age- and sex-matched control patients (mean +/- SD, 1.60 +/- 1.26 versus 5.70 +/- 1.89 episodes per patient, respectively; P = .0001); decreased severity of rejection was also observed (P = .006). T cruzi parasitemias detected on three occasions were successfully treated with benzonidazole. There were no signs of recurrence of the disease in the allograft. These results suggest an important role of HT in the treatment of CCHD. There was a low frequency of T cruzi infection reactivation and no signs of recurrence of the disease in the allograft. The surprisingly decreased rejection incidence and severity require further studies for elucidation.
  • Publisher: Hagerstown, MD: Lippincott Williams & Wilkins
  • Language: English
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