Table 1

Modification of Hart's classification of echocardiographic findings

Major risk factorsMinor risk factors
Abnormalities on transoesophageal echocardiography (TEE) that are potential cardiac sources of embolism are listed as major or minor risk factors. Atrial fibrillation, acute myocardial infarction, and prosthetic valve are also major risk factors but not listed here because they can be identified without TEE.
Left atrial cavity thrombusMitral valve prolapse
Left atrial appendage thrombusMitral annular calcification
Left ventricular thrombusCalcified aortic stenosis
Aortic thrombusPatent foramen ovale
Atrial myxomaSlow flow (spontaneous echo contrast)
VegetationAtrial septal aneurysm
Infective endocarditisLeft ventricular aneurysm
Marantic endocarditisAortic aneurysm
Dilated cardiomyopathyFalse tendon
Mitral valve stenosisAortic arch plaques