How is third-degree atrioventricular (AV) block prevented?

Updated: Jul 05, 2018
  • Author: Akanksha Agrawal, MBBS; Chief Editor: Jeffrey N Rottman, MD  more...
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Patients with renal insufficiency or failure, dehydration, and certain electrolyte disturbances are predisposed to develop digoxin toxicity. Careful monitoring of electrolytes, drug levels, and renal function is essential in patients on chronic digoxin therapy.

Patients on multiple nodal agents (eg, beta-blockers and calcium channel blockers) are at an increased risk for the development of third-degree atrioventricular (AV) block (complete heart block); the more nodal blockade that occurs, the higher the chance of developing complete heart block.

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