[Acquired aplastic anemia. Experience in a public hospital]

Rev Med Chil. 2018 Feb;146(2):175-182. doi: 10.4067/s0034-98872018000200175.
[Article in Spanish]

Abstract

Background: The first line treatment for patients < 40 years old with aplastic anemia (AA) is allogeneic HLA-identical sibling donor transplantation (SCT). Immunosuppressive therapy (IST) with a combination of Thymoglobuline (ATG) and cyclosporine is used for older patients or those without a donor. Five year overall survival (OS) for both therapies is > 70%.

Aim: To report the experience with SCT and ATG for AA in a public hospital.

Patients and methods: AA was diagnosed in 42 patients between 1998 and 2016, according to Camitta criteria. Thirty eight (90%) received treatment, 7 (18%) under 40 years old received SCT, and 31 (82%) IST. The rest were not treated. OS was calculated from date of diagnosis until last control, death or loss from follow up.

Results: Complete or partial hematologic response, was obtained in 71% and 58% of cases with SCT and IS, respectively. Five year OS was 71% and 55% with SCT and IST, respectively. No difference in response was observed between horse and rabbit ATG.

Conclusions: SCT from an HLA-identical sibling donor had a high response rate and survival. IST instead, had a lower response and survival, due to an initial high mortality rate.

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Aged, 80 and over
  • Anemia, Aplastic / mortality*
  • Anemia, Aplastic / surgery*
  • Antilymphocyte Serum / administration & dosage*
  • Combined Modality Therapy
  • Cyclosporine / administration & dosage*
  • Hospitals, Public
  • Humans
  • Immunosuppressive Agents / administration & dosage*
  • Kaplan-Meier Estimate
  • Middle Aged
  • Severity of Illness Index
  • Stem Cell Transplantation*
  • Time Factors
  • Young Adult

Substances

  • Antilymphocyte Serum
  • Immunosuppressive Agents
  • Cyclosporine
  • thymoglobulin