View source for Weekly EP & ECG rounds at the BIDMC (Archive)

'''Editors-In-Chief:''' Chris Pickett,M.D.; Peter Zimetbaum, M.D.; Mark Josephson, M.D.

==August 2007==
'''This patient is a 53 year old woman with a history of SVT who is referred for an electrophysiology study due dyspnea with exertion and a Holter ECG which showed several episodes of AV block second degree with 5:4, 4:3, and 3:2 conduction, as well as brief episodes of a junctional rhythm during the daytime. Prior to her EP study, she underwent stress testing and exercised 4 minutes on a BRUCE protocol, during whch she developed AV Wenckebach block and the test was stopped. She never has had an episode of syncope.'''

'''This is the baseline ECG:'''
[[Image:Baseline ECG RBBB LAFP long PR.jpg|left|600px]]
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'''Her baseline intracardiac recording shows:'''
[[Image:Infranodal Wenkebach case baseline Intracardiac with long HV copy.jpg|left|600px]]
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'''This is her intracardiac recording with atrial pacing:'''
[[Image:A pacing with infranodal Wenkebach copy.jpg|left|600px]]
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[[Infranodal Wenkebach-type block|Click here for the answer]].


[[category:Electrophysiology]]
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