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Current Incidence of Peripheral Arterial Embolism and Role of Echocardiography

Shahid Beheshti University/MC, Tehran, Iran CHU Pitie-Salpetriere, Paris, France

For reprint information contact: Arash Mohammadi Tofigh, MD Tel: 98 21 2293 2846 Fax: 98 21 7755 7069 Email: arash_mtofigh{at}yahoo.com, Imam Hussein Hospital, Shahid Beheshti University/MC, Tehran, Iran.

We reviewed the incidence and outcome of all cases of upper and lower limb embolism surgically treated in our vascular unit, from January 2001 to June 2006, to assess the role of transthoracic and transesophageal echocardiography in defining the source of the embolus. Transthoracic echocardiography was carried out postoperatively, and patients in whom the embolic source was not found underwent transesophageal echocardiography. There were 85 patients (mean age, 69 years) who underwent embolectomy: 58 for lower and 27 for upper limb ischemia. The source or potential source of thrombus was demonstrated in 17 (20%) patients after transthoracic echocardiography. Fifty-three patients had transesophageal echocardiography, the source of embolism was found in 85%, and the subsequent management was changed in 47% of them. Arterial limb emboli are still prevalent in developing countries. Transthoracic echocardiography is a good screening tool for detecting a potential cardiac source of peripheral embolism, with transesophageal echocardiography being reserved for specific indications.