Electron microscopical study of myocardial biopsy material in congenital heart block.

Electron microscopical study of myocardial biopsy material in congenital heart block.

Myocardial tissue from the left ventricle of two children with congenital atrioventricular block and recurrent Admas-Stokes attacks was obtained during the procedure of epicardial pacemaker implantation and studied with the electron microscope. One patient had a familial cardiomyopathy, the other had no clinical abnormality apart from the conduction defect. Proliferation of mitochondria was com...

Neonatal congenital heart block.

Congenital Heart Block (CHB) is the most serious complication of neonatal lupus erythematosus. Transplasental transfer of maternal anti SSA/Ro or antiSSB/La antibodies around 12th week of gestation is associated with development of CHB. This may lead to inflammation, fibrosis and scarring of fetal conduction system in the early second trimester. Different degrees of atrioventricular (AV) block ...

Congenital complete heart block.

Congenital partial heart block.

Although congenital complete heart block is well recognized and has been fully reviewed, congenital partial heart block appears to be much more unusual. Howevev, a survey shows that several such cases have been described in America, but we have found only four cases recorded from this country. Whipham (1915) reported two, and Fleming and Stevenson (1928) gave an account of an eight-year-old gir...

Congenital Complete Heart Block.

Few of the reported cases of congenital complete heart block have been over twenty years of age. It seems, therefore, worth reporting seven cases who are in good health at various ages between 22 and 42 years. This aetiological factor should, therefore, be thought of in middle-aged and even in elderly patients with complete heart block of unknown oetiology. Campbell and Suzman (1934), reporting...