I have used the term "Latent Heart Block" to indicate a prolonged P-R interval without any manifest degree of block, such as dropped beats or 2 :1 block. This paper is a clinical study of a series of such cases, mainly from the point of view of the xtiology and significance of the condition. One might guess that latent heart block would be found in the same cases as, but at an earlier stage tha...

The electrocardiogram (ECG) characteristics of athletes have recently become a topic of intensive study to accurately identify dangerous and benign alterations in this special population. These subjects develop a high-vagal tone and consequently sinus bradycardia and different degrees of atrioventricular (AV)-block, but it is difficult to determine how much is too much, and the indications for ...

Chloroquine has been widely used in rheumatological treatment, but potential severe side effects require careful follow-up. Cardiac damage is not a common consequence, but its clinical relevance has not yet been described. We report the case of a 58-year-old woman with rheumatoid arthritis, in whom chronic chloroquine use resulted in major irreversible cardiac damage. She presented with syncopa...

Congenital complete atrioventricular block is uncommon, and the outlook is usually regarded as favourable. Thirty-five patients with congenital heart block are presented. There was no obvious sex difference and their ages ranged from 12 days to 85 years, though most were under the age of 20 years when first seen. Accompanying heart disease was noted in six, but presentation with symptoms in ear...

Since implantable artificial cardiac pacemakers were first produced in Sweden and the United States in 1958, there has been continual improvement in manufacturing techniques, and reliability ofmodem apparatus has increased to the extent that pacing is generally accepted as the treatment of choice for a high proportion of patients with complete heart block. Nevertheless the use of pacemakers is ...

normal 0 false false false en-us x-none fa background : fahr's disease is a rare neurodegenerative disorder of unknown cause characterized by idiopathic basal ganglia calcification that is associated with neuropsychiatric and cognitive impairment. no case of fahr's disease with associated cardiac conduction disease has been described in the literature to date. the objective of this case report ...

The case is reported of an athlete who, during an exercise test, had a complete atrioventricular block without symptoms of cardiac output failure. Heart rate, stroke index, cardiac index, and myocardial contractility were monitored during the episode by an impedance cardiograph. The most important findings of this report are the continuous increase in stroke index, which compensated for the lac...