A rare mitochondrial oxidative phosphorylation disorder with complex I and IV deficiency characterized by lactic acidosis, hypotonia, hypertrophic cardiomyopathy and global developmental delay. Other clinical features include feeding difficulties, failure to thrive, seizures, optic atrophy and ataxia.
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severe X-linked mitochondrial encephalomyopathy
MONDO:0010437
hepatoencephalopathy due to combined oxidative phosphorylation defect type 1
MONDO:0012191
combined oxidative phosphorylation defect type 2
MONDO:0012510
fatal mitochondrial disease due to combined oxidative phosphorylation defect type 3
MONDO:0012512
combined oxidative phosphorylation defect type 4
MONDO:0012534
hypotonia with lactic acidemia and hyperammonemia
MONDO:0012718