Second degree AV block other diagnostic studies
Second degree AV block Microchapters |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Syed Musadiq Ali M.B.B.S.[2]
Overview
Additional testing for management of bradycardia associated atrioventricular block |
Ambulatory electrocardiographic monitoring (Class IIa , Level of Evidence B): |
❑ Ambulatory electrocardiographic monitoring is recommended in patients with first degree AV block, or mobitz type 1 second degree AV block to establish the correlation between symptoms related to bradycardia (lightheadness, syncope) and atrioventricular block |
Exercise treadmill test (Class IIa , Level of Evidence C): |
❑ Exercise treadmill test is reasonable in patients with first degree AV block or mobitz type 1 second degree AV block in resting ECG who have chest pain or shrtness of breath during exercise to identify the benefit of permanent pacing |
Electrophysiologic study (Class IIb , Level of Evidence B): |
❑EPS may be considered in selective patients with second degree AV block to determine the level of block |
Pharmacologic challenge tests (Class IIb , Level of Evidence C): |
❑Atropine, procainamide, isoproternole, carotide sinus massage may be used in selected patients with second degree AV block to determine the level of block and benefit from permanent pacing |
Other diagnostic studies
There are no other diagnostic studies associated with second degree AV block.