February 1, 1965

Complications of Direct-Current Countershock

Author Affiliations


JAMA. 1965;191(5):421. doi:10.1001/jama.1965.03080050067032

This article is only available in the PDF format. Download the PDF to view the article, as well as its associated figures and tables.


To the Editor:—  The electrocardiographic tracing in question appears to be strip B of Fig 1 in our recent report. Dr. Vigliano is quite right, a more advanced degree of block is present with the atria under the control of a paroxysmal atrial tachycardia at 240 beats per minute with independent activation of the ventricles. A nonparoxysmal nodal tachycardia is present at a rate of 138 beats per minute and controls the ventricles. This mechanism was also seen in strip C and properly described. Digitalis intoxication was identified in strip B, and may have contributed to the onset of ventricular fibrillation two minutes later.

First Page Preview View Large
First page PDF preview
First page PDF preview