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Prevalence and progression of mitochondrial diseases: A study of 50 patients

✍ Scribed by Javier Arpa; Antonio Cruz-Martínez; Yolanda Campos; Manuel Gutiérrez-Molina; Francisco García-Rio; Concepción Pérez-Conde; Miguel A. Martín; Juan C. Rubio; Pilar Del Hoyo; Ana Arpa-Fernández; Joaquín Arenas

Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
88 KB
Volume
28
Category
Article
ISSN
0148-639X

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

We report 50 patients with various clinical phenotypes of mitochondrial disease studied over the past 10 years in a large urban area (Madrid Health Area 5). The clinical phenotypes showed a large variety of abnormalities in molecular biology and biochemistry. The prevalence of mitochondrial diseases was found to be 5.7 per 100,000 in the population over 14 years of age. Clinical and electrophysiological assessment reveal signs of neuropathy in 10 patients. Electromyographic findings consistent with myopathy were obtained in 37 cases. Six patients died of medical complications. Disease phenotype influenced survival to some degree (P < 0.01). Age of onset and gender were not associated with differences in survival. Mitochondrial disease is thus far more common than expected and a common cause of chronic morbidity. Muscle Nerve 28: 690–695, 2003

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