Third degree AV block other diagnostic studies

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Soroush Seifirad, M.D.[2]

Overview

Other diagnostic studies for third degree AV block include diagnostic electrophysiologic studies , which may demonstrate atrioventricular (AV) conduction abnormalities and help to determine the level of block (AV nodal or infranodal) and mapping, and also used to provide basic materials prior to intervention and placement of pacemaker. Ambulatory monitoring, is warranted in cases of possible transient heart block, or some other bradyarrhythmias that might be mistaken with third degree AV block. Finally, if there are concerns for ischemic heart disease the cardiac catheterization or stress testing is warranted and might show pieces of evidence of active coronary ischemia, or filling defect in angiogram or ECG finding in positive stress test.

Other Diagnostic Studies

Other diagnostic studies for third degree AV block include:

• Diagnostic electrophysiologic studies , which demonstrates:
  • Atrioventricular (AV) conduction
  • The level of block (AV nodal or infranodal)
  • Mapping, intervention and placement of pacemaker
• Ambulatory monitoring, which demonstrates:
  • Transient heart block
  • Other bradyarrhythmias that might be mistaken with third degree AV block

• If there concerns for ischemic heart disease the cardiac catheterization or stress testing which demonstrates:
  • Evidences of active coronary ischemia
  • Filling defect in angiogram or positive stress test

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