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[Clinical and echocardiographic evaluation of thalassemic cardiomyopathy]
1Istituto di Cardiologia, Università degli Studi, Cagliari.
Insights
Echocardiography is more reliable than clinical exams for assessing cardiac issues in adult thalassemia major patients. This study found echocardiography better detects left ventricular changes in these patients.
Area of Science:
- Cardiology
- Hematology
- Medical Imaging
Background:
- Thalassemia major patients often develop cardiac complications due to iron overload.
- Regular blood transfusions and chelation therapy are standard but may not fully prevent cardiac issues.
Purpose of the Study:
- To compare the diagnostic accuracy of echocardiography versus traditional methods (clinical assessment, ECG, chest X-ray) for cardiac evaluation in adults with thalassemia major.
Main Methods:
- 103 adult thalassemia major patients and 30 healthy controls underwent clinical, ECG, chest X-ray, and echocardiographic assessments.
- Patients were categorized into three groups based on cardiac impairment severity.
Main Results:
- Echocardiography revealed increased left ventricular (LV) dimensions and mass in all thalassemia groups compared to controls.
- LV fractional shortening (FS) decreased significantly in patients with moderate to severe cardiac impairment (Groups II and III).
- Echocardiography detected significant differences in LV dimensions, mass, and FS between patient groups, indicating progressive cardiac dysfunction.
Conclusions:
- Echocardiography is a more sensitive and reliable tool than clinical assessment, ECG, or chest X-ray for detecting and assessing cardiac impairment in adult thalassemia major patients.
- The findings highlight the importance of regular echocardiographic monitoring for early detection of cardiac complications in this population.
Abstract:
To evaluate the reliability of the echocardiographic examination in assessment of adult patient with thalassemia major, in comparison with clinical, electrocardiographic and/or chest x ray exams, 103 patients with thalassemia major, mean age 20 years (range 14 to 30 years), were studied and compared with 30 age matched normal subjects. All patients were receiving transfusions regularly to maintain hemoglobin levels above 11 g/dl and subcutaneous infusions of desferrioxamine (about 40 mg/kg/day) to reduce hemosiderosis. The patients were divided into three groups according to their cardiac impairment, deduced by clinical history, electrocardiography (ECG) and/or chest x ray. Group I (36 patients) showed no signs or symptoms of cardiac impairment. Group II (38 patients) had only signs of cardiac impairment by ECG and/or chest x ray. Group III (29 patients) had both symptoms and signs of cardiac failure. In comparison to normal controls, Group I showed an increase in left ventricular (LV) dimension (EDD) and mass (p < 0.001), Group II and III showed a decrease in LV fractional shortening (FS; p < 0.001) too. In comparison to Group I, Group II showed a decrease in LV FS (p < 0.05), Group III showed an increase in LV EDD and mass (p < 0.001) too. In comparison to Group II, Group III showed an increase in LV EDD and mass (p < 0.001), and a decrease in LV FS (p < 0.001). In conclusion, echocardiographic examination appears a tool more reliable than clinical, electrocardiographic and/or chest x ray examination in assessment of adult patient with thalassemia major.(ABSTRACT TRUNCATED AT 250 WORDS)