Evaluation of cardiac emboli source.

Area of Science:

• Cardiology
• Neurology
• Vascular Medicine

Background:

• Evaluating the source of cardiac embolism is a frequent reason for cardiac consultation.
• Prompt identification of cardiac embolism sources is essential for patient management.

Purpose of the Study:

• To determine the yield of diagnostic evaluations in patients referred for cardiac embolism source assessment.
• To identify the most effective diagnostic tools for detecting cardiac sources of embolism.

Main Methods:

• A cohort of 99 patients with suspected cardiac embolism underwent comprehensive evaluation.
• Methods included history, physical examination, ECG, 24-hour Holter monitoring, and contrast-enhanced transoesophageal echocardiography (TOE).

Main Results:

• A potential cardiac source of embolism was identified in 32% of patients.
• Patent foramen ovale (PFO) and aortic arch atherosclerosis were the most common findings.
• 24-hour Holter monitoring did not detect any significant emboligenic arrhythmias.

Conclusions:

• Transoesophageal echocardiography (TOE) is the preferred imaging modality for evaluating cardiac embolism sources.
• TOE effectively visualizes the interatrial septum, left atrial appendage, and aortic arch.
• Routine Holter monitoring is less effective for detecting emboligenic arrhythmias in this population.