Summary
Despite extensive analysis of the ultrastructural changes in skeletal muscle fibers in chronic progressive external ophthalmoplegia (CPEO), similar changes in the heart muscle fibers of patients with cardiac involvement in CPEO, called Kearns-Sayre syndrome, have not been described in detail. We report the clinical long-term course in a patient with Kearns-Sayre syndrome in whom mitochondrial cardiomyopathy was suspected in vivo and was confirmed at autopsy as the underlying cause of severe dilative cardiomyopathy. Enlarged, abnormally structured, excessively augmented mitochondria and loss of myofibrils could be shown both in skeletal and heart muscle cells.
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Abbreviations
- CPEO:
-
chronic progressive external ophthalmoplegia
- EMG:
-
electromyogram
- ENT department:
-
ear, nose, and throat department
- LAH:
-
left anterior hemiblock
- LVEDP:
-
left ventricular end-diastolic pressure
- LVEDVI:
-
left ventricular end-diastolic volume index
- LVEF:
-
left ventricular ejection fraction
- LVESVI:
-
left ventricular end-systolic volume index
- PAP:
-
pulmonary artery pressure
- RAP:
-
right arterial pressure
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Supported by the Dr. Sepp and Hanne-Sturm-Stiftung
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Kleber, F.X., Park, J.W., Hübner, G. et al. Congestive heart failure due to mitochondrial cardiomyopathy in kearns-sayre syndrome. Klin Wochenschr 65, 480–486 (1987). https://doi.org/10.1007/BF01712843
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DOI: https://doi.org/10.1007/BF01712843