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Is growth hormone deficiency contributing to heart failure in patients with beta-thalassemia major?

Eva Marie Erfurth1, Helene Holmer, Per-Gunnar Nilsson

  • 1Department of Endocrinology, Lund University Hospital, Lund, Sweden. Eva_Marie.Erfurth@med.lu.se

European Journal of Endocrinology
|August 7, 2004
PubMed

Insights

Growth hormone (GH) deficiency in beta-thalassemia major patients can cause heart failure. Restoring GH therapy reversed heart failure, suggesting GH

Area of Science:

  • Cardiology
  • Endocrinology
  • Hematology

Background:

  • Beta-thalassemia major (beta-TM) patients often experience complications due to iron overload.
  • Growth hormone (GH) deficiency is a known endocrine complication in beta-TM.
  • Heart failure is a severe manifestation in advanced beta-TM.

Observation:

  • A 21-year-old woman with beta-TM and GH deficiency presented with end-stage heart failure (NYHA class IV).
  • Her condition rapidly worsened after discontinuing recombinant human GH (rhGH) therapy.
  • Myocardial biopsy revealed iron deposits but excluded myocarditis.

Findings:

  • Intensified standard heart failure treatments and chelation were ineffective.
  • Reintroducing rhGH alongside cardiac medications and low-dose desferrioxamine (DFO) led to reversal of heart failure.
  • Cardiac function normalized within one year of GH reinitiation.

Implications:

  • GH deficiency, potentially from iron-induced hypothalamic-pituitary damage, may significantly contribute to heart failure in adult beta-TM patients.
  • This highlights the critical role of endocrine management, specifically GH replacement, in preventing and treating cardiac dysfunction in beta-TM.
  • Early detection and management of GH deficiency are crucial for improving cardiovascular outcomes in beta-TM.

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