Our experience with 16 patients indicates that use of an indwelling electrode, introduced preferably through the right external jugular vein into the cavity of the right ventricle, is a safe and effective method for treatment of patients with heart block and Adams-Stokes disease when other medical measures have been ineffective. In addition endocardial stimulation may be used to pace patients with heart block through anesthesia and operation. When congestive failure complicates heart block, it is usually significantly improved by the more rapid rate that can be achieved through electrical pacing.
DeSanctis RW. Short-Term Use of Intravenous Electrode in Heart Block. JAMA. 1963;184(7):544-548. doi:10.1001/jama.1963.03700200066012