Which cardiac studies are performed in the evaluation of third-degree atrioventricular (AV) block?

Updated: Jul 05, 2018
  • Author: Akanksha Agrawal, MBBS; Chief Editor: Jeffrey N Rottman, MD  more...
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Answer

If the patient's clinical history or 12-lead electrocardiographic (ECG) findings suggest active coronary artery disease, then measurement of cardiac enzyme levels and an evaluation of ischemia, including either cardiac catheterization or stress testing, are needed.

Ambulatory monitoring may be performed to document transient heart block or other bradyarrhythmias in patients presenting with symptoms suggestive of bradycardia.

Diagnostic electrophysiologic studies can be performed to assess atrioventricular (AV) conduction and to discern the level of block (AV nodal or infranodal) when necessary.


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