Strategies for routine biopsies in heart transplantation based on 8-year results with more than 13, 000 biopsies

  • Hausen B
  • Rohde R
  • Demertzis S
 et al. 
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Abstract

The endomyocardial biopsy (EMB) in heart transplant recipients has beenconsidered the "gold standard" for diagnosis of graft rejection (REJ). Thepurpose of this retrospective study is to develop long-term strategies(frequency and postoperative duration of EMB) for REJ monitoring. Between1985 and 1992, 346 patients (mean age 44.5 years, female patients = 14%)received 382 heart grafts. For graft surveillance EMBs were performedaccording to a fixed schedule depending on postoperative day and theresults of previous biopsies. In the first year the average number (no.) ofEMBs/patient was 20 with 19% positive for REJ in the first quarter, dropping to 7% REJ/EMB by the end of the first year. The percentage ofREJ/EMB declined annually from 4.7% to 4.5%, 2.2% and less than 1% afterthe fifth year. Individual biopsy results in the first 3 postoperativemonths had little predictive value. Patients with fewer than two REJ (group1), vs patients with two or more REJ in the first 6 postoperative months(group 2), were significantly less likely to reject in the second half ofthe first year (group 1: 0.29 +/- 0.6 REJ/patient; group 2:0.83 +/- 1.3REJ/patient; P < 0.001) and third postoperative year (group 1:0.12 +/-0.33 REJ/patients; group 2:0.46 +/- 0.93 REJ/patient; P < 0.05). Inconclusion, routine EMBs in the first 3 postoperative months have onlylimited predictive value, however the number of routine EMBs can bedrastically reduced later depending on the intermediate postoperative REJpattern. © 1995, Springer-Verlag.

Author-supplied keywords

  • Biopsy statistics and numerical data
  • Endomyocardial biopsies
  • Heart transplantation
  • Heart transplantation standards
  • Immunosuppressive agents therapeutic use

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