Abstract
To assess dysphagia, the authors examined 12 patients with Kearns-Sayre syndrome (KSS) or chronic progressive external ophthalmoplegia (CPEO) due to mitochondrial DNA (mtDNA) deletion by videofluoroscopy and manometry. Cricopharyngeal achalasia was documented in nine of 12 patients (75%), whereas deglutitive coordination problems were found in one patient. Cricopharyngeal myotomy may be an effective treatment in selected cases with severe cricopharyngeal obstruction.
MeSH terms
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Adult
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DNA, Mitochondrial / genetics
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Deglutition Disorders / etiology
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Deglutition Disorders / genetics*
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Deglutition Disorders / physiopathology*
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Esophageal Achalasia / genetics*
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Esophageal Achalasia / physiopathology*
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Esophagus / pathology
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Esophagus / physiopathology*
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Female
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Gene Deletion
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Humans
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Male
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Middle Aged
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Mitochondrial Encephalomyopathies / complications*
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Mitochondrial Encephalomyopathies / genetics*
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Mitochondrial Encephalomyopathies / physiopathology
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Pharyngeal Muscles / pathology
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Pharyngeal Muscles / physiopathology*