[Cerebrovascular disorders in the fascicular block picture on the electrocardiogram]

3894 ECG of neuropsychiatric patients were investigated for mono- and bifascicular blocks and the charts taken out for closer examination. Within this group of patients, the percentage of cerebral circulatory disturbances proved to be significantly increased. Among 97 patients there were 15 suffering from syncopal attacks. These attacks seem to be caused by intermittent occurrence of a trifascicular block. In a randomized control group of 50 patients not a single syncopal attack was found. The risk for a patient to develop syncopal attacks is correlated to the advancing degree of blockage in the ECG. When an intermittent trifascicular block is detected in a patient suffering from syncopal attacks, an electric pacemaker should be implanted.