Premium
The investigation of respiratory chain disorders in heart using endomyocardial biopsies
Author(s) -
Rustin P.,
Lebidois J.,
Chretien D.,
Bourgeron T.,
Piechaud J. F.,
Rötig A.,
Sidi D.,
Munnich A.
Publication year - 1993
Publication title -
journal of inherited metabolic disease
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.462
H-Index - 102
eISSN - 1573-2665
pISSN - 0141-8955
DOI - 10.1007/bf00711676
Subject(s) - hypertrophic cardiomyopathy , cardiomyopathy , medicine , respiratory chain , mitochondrial respiratory chain , respiratory system , endomyocardial biopsy , heart disease , cardiology , pathology , mitochondrion , biopsy , heart failure , biology , genetics
Conclusion Hitherto, cardiomyopathy has never been reported as the presenting symptom of a mitochondrial disorder. Although it appears premature to conclude as to the prevalence of defects of oxidative phosphorylation in hypertrophic cardiomyopathies, this study demonstrates that such defects should be regarded as a potential cause of idiopathic hypertrophic cardiomyopathy in early infancy. While an abnormal redox status in plasma and widespread multitissue defects support the diagnosis of mitochondrial cardiomyopathy, normal results in such investigations do not preclude the possibility of heart‐specific respiratory chain defect and should prompt one to carry out in vivo investigations on endomyocardial biopsies.