Two-dimensional echocardiography in patients with focal cerebral ischemia

Area of Science:

• Cardiology
• Neurology
• Medical Imaging

Background:

• Cerebral embolization is a significant cause of focal cerebral ischemia.
• Identifying a cardiac source is crucial for appropriate management and secondary prevention.
• Two-dimensional echocardiography (2D echo) is a non-invasive imaging technique used to evaluate cardiac structures.

Purpose of the Study:

• To evaluate the diagnostic utility of 2D echo in identifying cardiac sources of cerebral embolization.
• To assess the yield of 2D echo in patients with recent focal cerebral ischemia.

Main Methods:

• A study of 138 patients with recent focal cerebral ischemia was conducted.
• Patients were evaluated for suspected cardiac mechanisms or had no identified cause for ischemia.
• Two-dimensional echocardiography was performed to identify intracardiac thrombus or other cardiac disorders.

Main Results:

• Intracardiac thrombus was detected in 6.5% of patients.
• Other potentially related cardiac disorders were found in 23.2% of patients.
• 2D echo showed limited value in patients without prior cardiac disease or hypertension, but was more useful in those with known cardiac conditions like atrial fibrillation.

Conclusions:

• 2D echocardiography can identify various cardiac disorders associated with cerebral ischemia.
• The overall low diagnostic yield does not support the routine use of 2D echo in all patients with unexplained cerebral ischemic events.
• Selective use of 2D echo may be more beneficial in specific patient populations with suspected cardiac involvement.