Evaluation of left ventricular function in patients with sickle cell anemia

Area of Science:

• Cardiology
• Hematology
• Echocardiography

Background:

• Sickle cell anemia (SCA) is a genetic blood disorder associated with chronic hemolysis and potential cardiovascular complications.
• Chronic anemia in SCA can lead to volume overload, potentially affecting cardiac structure and function.

Purpose of the Study:

• To evaluate echocardiographic parameters of cardiac chamber dimensions and left ventricular function in adult patients with SCA.
• To compare these parameters with those of healthy individuals.

Main Methods:

• Echocardiography was performed on 23 adult patients with SCA and a control group.
• Measurements included cardiac chamber dimensions, ejection phase indices, and systolic time intervals.

Main Results:

• Patients with SCA exhibited significantly increased left ventricular systolic and diastolic dimensions, left ventricular mass, stroke volume index, interventricular septal width, aortic root index, and left atrial index compared to controls.
• No significant differences were found in the velocity of circumferential fiber shortening, ejection fraction, or systolic time intervals between SCA patients and controls.
• Age stratification (under and over 30 years) in the SCA group revealed no significant differences in ventricular dimensions or function.

Conclusions:

• Adult patients with sickle cell anemia tolerate chronic volume overload without developing left ventricular dysfunction.
• Echocardiography demonstrates adaptive cardiac remodeling in SCA, but preserved systolic function.