Neurological associations of chronic heart block.

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Abstract
A large group of patients with chronic heart block was studied for evidence of neurological disorder. Six out of 892 patients were found who had neuromuscular disease related to the conduction disturbance. In four patients, cardiac involvement appeared selectively to affect the conducting tissues. Three of these patients had a scapuloperoneal syndrome, the fourth, the oculocraniosomatic syndrome. In the remaining two patients, one with limb girdle dystrophy and the other with dystrophia myotonica, cardiomyopathy was present in addition to the conduction disturbance.