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Q J Med 1999; 92: 619-621
© 1999 Association of Physicians

Editorial

Echocardiography in stroke and thromboembolism: transoesophageal imaging for all?

K.M. Channon and A.P. Banning

Department of Cardiology, John Radcliffe Hospital, Oxford

Transthoracic echocardiography combines real-time two-dimensional imaging of the heart and cardiac valves with information about velocity and direction of blood flow obtained by Doppler and colour flow mapping. It is non-invasive, and a complete examination can be performed in most patients in less than 25 min. Transoesophageal echocardiography is available in regional cardiac centres and some district general hospitals. Under sedation, the ultrasound probe is passed into the oesophagus where its position next to the heart produces superior resolution, particularly of posterior cardiac structures such as the left atrium and interatrial septum.

Echocardiography is the investigation of choice when a cardiac source of embolism is suspected. However, debate persists about which patients with a stroke or thromboembolism require . . . [Full Text of this Article]

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