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  • Title: Evidence for cardioembolic stroke in a case of Kearns-Sayre syndrome.
    Author: Kosinski C, Mull M, Lethen H, Töpper R.
    Journal: Stroke; 1995 Oct; 26(10):1950-2. PubMed ID: 7570754.
    Abstract:
    BACKGROUND: Cerebral infarction is a known complication in patients with mitochondrial encephalomyopathies (MELAS, MERRF, Kearns-Sayre syndrome), but the etiology in the different types remains uncertain. CASE DESCRIPTION: A 33-year-old woman who had suffered from ophthalmoplegia, bilateral ptosis, ataxia, retinitis pigmentosa, and epilepsy since childhood was diagnosed to have Kearns-Sayre syndrome. The diagnosis was confirmed by muscle biopsy when she was 17 years old. A pacemaker was implanted because of the occurrence of bradyarrhythmias when she was 24 years old. The patient was admitted to the hospital with left-sided hemiparesis of sudden onset due to right striatocapsular infarction. Results of Doppler sonography of the carotid arteries were normal; however, transesophageal echocardiography revealed a thrombus in the left atrial appendage. CONCLUSIONS: Stroke in Kearns-Sayre syndrome is likely to be due to cardiac embolism. Anticoagulant therapy should be considered even for mild forms of cardiomyopathies leading to left ventricular dysfunction.
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