Biomaterial Database

Fatal mitochondrial cardiomyopathy in Kearns-Sayre syndrome. 1986

G Hübner, and J M Gokel, and D Pongratz, and A Johannes, and J W Park

The clinical and postmortem findings in a 26 year old man with Kearns-Sayre syndrome are described. In the last years of his life he suffered from cardiac arrhythmias and a congestive cardiomyopathy, dying of cardiac pump failure. The heart was enlarged, especially the left ventricle which was fibrotic and excessively dilated. Histological and fine structural investigation revealed an excessive loss of myofibrils and an increase of enlarged mitochondria with lamellar and atypically tubular cristae in widespread heart muscle cells. Mitochondrial anomalies were also observed in some cells of the conductive system. This patient thus suffered not only from a mitochondrial myopathy with ragged red fibers but also from a fatal mitochondrial cardiomyopathy. The anomalies observed in the mitochondria of the conductive system cells suggest that the well-known conductive abnormalities in patients with Kearns-Sayre syndrome might be at least partly caused by disturbed function of these mitochondria.

UI	MeSH Term	Description	Entries
D007625	Kearns-Sayre Syndrome	A mitochondrial disorder featuring the triad of chronic progressive EXTERNAL OPHTHALMOPLEGIA, cardiomyopathy (CARDIOMYOPATHIES) with conduction block (HEART BLOCK), and RETINITIS PIGMENTOSA. Disease onset is in the first or second decade. Elevated CSF protein, sensorineural deafness, seizures, and pyramidal signs may also be present. Ragged-red fibers are found on muscle biopsy. (Adams et al., Principles of Neurology, 6th ed, p984)	Kearns Syndrome,CPEO with Myopathy,CPEO with Ragged Red Fibers,Chronic Progressive External Ophthalmoplegia with Myopathy,Cpeo With Ragged-Red Fibers,Kearn-Sayre Mitochondrial Cytopathy,Kearns Sayre Syndrome,Kearns' Syndrome,Kearns-Sayre Mitochondrial Cytopathy,Kearns-Sayre-Shy-Daroff Syndrome,Oculocraniosomatic Syndrome,Ophthalmoplegia Plus Syndrome,Ophthalmoplegia, Pigmentary Degeneration of Retina, and Cardiomyopathy,Ophthalmoplegia, Progressive External, With Ragged-Red Fibers,Ophthalmoplegia-Plus Syndrome,CPEO with Myopathies,Cytopathies, Kearns-Sayre Mitochondrial,Cytopathy, Kearn-Sayre Mitochondrial,Cytopathy, Kearns-Sayre Mitochondrial,Kearn Sayre Mitochondrial Cytopathy,Kearn Syndrome,Kearns Sayre Mitochondrial Cytopathy,Kearns Sayre Shy Daroff Syndrome,Kearns-Sayre Mitochondrial Cytopathies,Mitochondrial Cytopathies, Kearns-Sayre,Mitochondrial Cytopathy, Kearn-Sayre,Mitochondrial Cytopathy, Kearns-Sayre,Myopathies, CPEO with,Myopathy, CPEO with,Oculocraniosomatic Syndromes,Ophthalmoplegia Plus Syndromes,Ophthalmoplegia-Plus Syndromes,Sayre Syndrome, Kearns,Syndrome, Kearns,Syndrome, Kearns Sayre,Syndrome, Kearns',Syndrome, Kearns-Sayre,Syndrome, Kearns-Sayre-Shy-Daroff,Syndrome, Oculocraniosomatic,Syndrome, Ophthalmoplegia Plus,Syndrome, Ophthalmoplegia-Plus,Syndromes, Ophthalmoplegia-Plus
D008297	Male		Males
D008854	Microscopy, Electron	Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen.	Electron Microscopy
D008929	Mitochondria, Heart	The mitochondria of the myocardium.	Heart Mitochondria,Myocardial Mitochondria,Mitochondrion, Heart,Heart Mitochondrion,Mitochondria, Myocardial
D009886	Ophthalmoplegia	Paralysis of one or more of the ocular muscles due to disorders of the eye muscles, neuromuscular junction, supporting soft tissue, tendons, or innervation to the muscles.	Oculomotor Paralysis,External Ophthalmoplegia,Internal Ophthalmoplegia,Ophthalmoparesis,External Ophthalmoplegias,Internal Ophthalmoplegias,Ophthalmopareses,Ophthalmoplegia, External,Ophthalmoplegia, Internal,Ophthalmoplegias,Ophthalmoplegias, External,Ophthalmoplegias, Internal,Paralysis, Oculomotor
D002311	Cardiomyopathy, Dilated	A form of CARDIAC MUSCLE disease that is characterized by ventricular dilation, VENTRICULAR DYSFUNCTION, and HEART FAILURE. Risk factors include SMOKING; ALCOHOL DRINKING; HYPERTENSION; INFECTION; PREGNANCY; and mutations in the LMNA gene encoding LAMIN TYPE A, a NUCLEAR LAMINA protein.	Cardiomyopathy, Congestive,Congestive Cardiomyopathy,Dilated Cardiomyopathy,Cardiomyopathy, Dilated, 1a,Cardiomyopathy, Dilated, Autosomal Recessive,Cardiomyopathy, Dilated, CMD1A,Cardiomyopathy, Dilated, LMNA,Cardiomyopathy, Dilated, With Conduction Defect 1,Cardiomyopathy, Dilated, with Conduction Deffect1,Cardiomyopathy, Familial Idiopathic,Cardiomyopathy, Idiopathic Dilated,Cardiomyopathies, Congestive,Cardiomyopathies, Dilated,Cardiomyopathies, Familial Idiopathic,Cardiomyopathies, Idiopathic Dilated,Congestive Cardiomyopathies,Dilated Cardiomyopathies,Dilated Cardiomyopathies, Idiopathic,Dilated Cardiomyopathy, Idiopathic,Familial Idiopathic Cardiomyopathies,Familial Idiopathic Cardiomyopathy,Idiopathic Cardiomyopathies, Familial,Idiopathic Cardiomyopathy, Familial,Idiopathic Dilated Cardiomyopathies,Idiopathic Dilated Cardiomyopathy
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults