Early impairment of myocardial function in young patients with beta-thalassemia major

Damiano Magrì1, Susanna Sciomer, Francesco Fedele

  • 1Dipartimento di Scienze Cardiovascolari, Respiratorie e Morfologiche, Università degli Studi di Roma La Sapienza, Rome, Italy. damiano.magri@libero.it

Insights

Young patients with beta-thalassemia major (TM) show impaired heart function, detectable by advanced ultrasound (TDI/SI). Deferiprone may offer better myocardial protection than deferoxamine in TM patients.

Area of Science:

  • Cardiology
  • Hematology
  • Medical Imaging

Background:

  • Heart failure from iron overload is a primary cause of mortality in beta-thalassemia major (TM).
  • Early detection of cardiac dysfunction is crucial for managing TM patients.

Purpose of the Study:

  • To compare myocardial function in young, asymptomatic TM patients and healthy controls using echocardiography (TDI/SI) and cardiac MRI.
  • To assess the impact of different iron chelation therapies (deferoxamine vs. deferiprone) on cardiac function in TM.

Main Methods:

  • Echocardiography with tissue Doppler imaging (TDI) and strain imaging (SI) was performed on 30 TM patients and 30 controls.
  • Cardiac MRI with T2* technique was used to assess myocardial iron levels.
  • TM patients were subgrouped based on iron chelation therapy (deferoxamine or deferiprone).

Main Results:

  • TM patients exhibited lower systolic myocardial velocities (Sm) and systolic strain (S) in the left and right ventricles compared to controls.
  • Myocardial function and T2* values were better in patients treated with deferiprone versus deferoxamine.
  • Advanced ultrasound parameters correlated well with MRI findings.

Conclusions:

  • Even in young, asymptomatic, and well-chelated TM patients, myocardial function is impaired.
  • Advanced echocardiographic techniques (TDI and SI) can effectively detect cardiac dysfunction in TM.
  • Deferiprone may offer superior myocardial protection in TM patients, warranting further investigation.
Abstract

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