Related Experiment Video

Updated: Jul 15, 2026

Immune Compatible Blood Transfusion and Agglutination
02:45

Immune Compatible Blood Transfusion and Agglutination

14.0K

Tissue Doppler echocardiography in patients with thalassaemia detects early myocardial dysfunction related to

M Vogel1, L J Anderson, S Holden

  • 1Department of Cardiology, University College Hospitals, London, UK.

European Heart Journal
|February 1, 2003
PubMed

Insights

Tissue Doppler echocardiography detects early cardiac dysfunction in thalassemia patients with myocardial iron overload, even with normal global function. This method identifies regional wall motion abnormalities related to iron accumulation.

Area of Science:

  • Cardiology
  • Medical Imaging
  • Hematology

Background:

  • Thalassaemia patients are at risk of cardiac complications due to iron overload.
  • Early detection of cardiac dysfunction is crucial to prevent overt cardiomyopathy.
  • Magnetic resonance imaging (MRI) is a validated method for quantifying myocardial iron load.

Purpose of the Study:

  • To compare echocardiography with MRI for detecting early cardiac dysfunction.
  • To assess if tissue Doppler echocardiography can identify cardiac abnormalities before cardiomyopathy develops.
  • To correlate echocardiographic findings with myocardial iron load.

Main Methods:

  • Echocardiography (tissue Doppler) was used to assess myocardial velocities in 52 thalassemia patients and 52 controls.
  • Myocardial iron load was evaluated using MRI.
  • Regional wall motion abnormalities were analyzed in the left ventricle (LV), right ventricle (RV), and septum.

Main Results:

  • 73% of patients had abnormal myocardial iron loading.
  • 87% of patients with iron overload showed regional wall motion abnormalities, compared to 35% without overload (P<0.04).
  • Low T2(*) values (indicating iron overload) were associated with wall motion abnormalities (P<0.007).

Conclusions:

  • Regional wall motion abnormalities detected by tissue Doppler echocardiography are an early sign of cardiac disease in thalassemia.
  • These abnormalities are linked to myocardial iron overload.
  • Tissue Doppler echocardiography is an effective tool for early cardiac assessment in at-risk patients.
Abstract

More Related Videos

Disorders of Erythrocytes01:27

Disorders of Erythrocytes

2.0K
Rh Blood Group01:19

Rh Blood Group

2.7K

Related Concept Videos

Imaging Studies for Cardiovascular System I:Echocardiography01:17

Imaging Studies for Cardiovascular System I:Echocardiography

Cardiac imaging studies encompass a wide range of noninvasive and minimally invasive techniques designed to visualize the heart's structure and function in detail. One such technique is echocardiography, which uses high-frequency ultrasound waves to produce detailed images of the heart, known as echocardiograms.
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion, evaluates...
Imaging Studies for Cardiovascular System II:Types of Echocardiography01:20

Imaging Studies for Cardiovascular System II:Types of Echocardiography

Echocardiography plays a role in assessing cardiac health and detecting heart conditions, with various types providing critical insights for diagnosis and treatment.
Types of Echocardiography
Transthoracic Echocardiography (TTE)
TTE is the most common type of echocardiogram which involves placing a transducer on the patient's chest, emitting sound waves to create heart images. TTE is invaluable for evaluating the heart's size, structure, and motion, making it particularly useful for diagnosing...
Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies01:22

Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies

The key clinical manifestations of Rheumatic heart disease (RHD) include several distinct cardiac symptoms.Carditis, a hallmark of acute rheumatic fever, involves inflammation of the heart's endocardium, myocardium, and pericardium. Chronic RHD often results from recurrent episodes of carditis. Its symptoms include the following:Murmurs are caused by valvular damage, especially to the mitral and aortic valves. Mitral stenosis or regurgitation is common, with characteristic heart murmurs...
Dysrhythmias V: Evaluating Dysrhythmias01:30

Dysrhythmias V: Evaluating Dysrhythmias

Dysrhythmias, also known as arrhythmias, are disturbances in the heart's rhythm that range from benign to life-threatening. A thorough evaluation is crucial for appropriate management and involves a comprehensive medical history, physical examination, and various diagnostic tests.Medical HistorySymptoms: Collect detailed information on palpitations, dizziness, syncope, chest pain, and fatigue. Note their onset, frequency, and triggers.Previous Cardiac Issues: Document any history of heart...
Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...