Cardiomyopathy in the Kearns-Sayre syndrome.
نویسندگان
چکیده
The Kearns-Sayre syndrome is a mitochondrial myopathy characterised by ptosis, chronic progressive external ophthalmoplegia, abnormal retinal pigmentation, and cardiac conduction defects. A unique case is reported in which there was rapid development of progressive congestive cardiac failure that required cardiac transplantation. A review of published reports of mitochondrial myopathy shows that a minority of cases (less than 20%) have cardiac involvement. This had previously been limited to abnormalities of cardiac conduction with progressive heart block. Myocardial biopsy has, however, shown ultrastructural evidence of a generalised mitochondrial disorder which hitherto has not been associated with a functional deficit.
منابع مشابه
Hypoparathyroidism as the First Mani-Festation of Kearns-Sayre Syndrome: A Case Report
Kearns-Sayre syndrome is a mitochondrial myopathy, which was first described by Tomas Kearn in 1958. Diagnostic symptoms of this condition include retinitis pigmentosa, chronic progressive external ophthalmoplegia, and one or more of the following factors: cardiac conduction system diseases, cerebellar ataxia, and cerebrospinal fluid (CSF) with protein content above 100 mg/dL. The nature of thi...
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A case of Kearns - Sayre Syndrome characterized by a triad of external ophthalmoplegia, retinal dystrophy and cardiomyopathy is discussed. Ocular examination and cardiologic screening of family members is requested.
متن کاملMitochondrial DNA deletion diagnosed by analysis of an endomyocardial biopsy specimen from a patient with Kearns-Sayre syndrome and complete heart block.
Defects of mitochondrial DNA have been found at necropsy in the myocardium of patients with Kearns-Sayre syndrome. A patient with characteristics typical of Kearns-Sayre syndrome and a complete heart block is described. Southern blot analysis showed a deletion of 3.3 kb in the mitochondrial DNA in an endomyocardial biopsy specimen and in skeletal muscle. The deletion led to the disappearance of...
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عنوان ژورنال:
- British heart journal
دوره 59 4 شماره
صفحات -
تاریخ انتشار 1988