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Transient Global Amnesia and Amaurosis Fugax in a Patient with Common Carotid Artery Occlusion

A Case Report

Lok-Ming Tang, MD, MSc

Tsong-Hai Lee, MD, PhD

Long-Song Ro, MD, PhD

Rong-Kuo Lyu, MD

Sien-Tsong Chen, MD

Department of Neurology Chang Gung Memorial Hospital 199 Tung Hwa North Road Taipei Taiwan

The etiology of transient global amnesia (TGA) is debatable. The hypothesis of a throm boembolic cause of TGA has been questioned by recent case control studies. Occlusion of the common carotid artery (CCA) is rare. Although amaurosis fugax (AF) is a hallmark of ipsilateral internal carotid artery disease, its occurrence in CCA occlusion is less known. Association of these three conditions in a patient may imply pathophysiologic signifi cance. Here, the authors report a 76-year-old man who suffered from a spell of TGA and then several attacks of AF of the right eye. Progressive occlusion of the right CCA was documented by repeat carotid duplex scans and was finally confirmed by cerebral angiog raphy. In this patient, the occurrence of CCA occlusion and AF implicates a vascular etiology for the event of TGA. A noninvasive carotid ultrasonographic screen may, therefore, be worthwhile for patients with TGA.

Angiology, Vol. 51, No. 3, 257-261 (2000)
DOI: 10.1177/000331970005100311


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