@misc{cogprints5238,
          volume = {6},
          number = {3},
           month = {July},
          author = {Meir Friedman and Paul Schweitzer},
          editor = {Balbir Singh and Yash Lokhandwala and Johnson Francis and Anup Gupta and Joydeep Ghosh},
           title = {Transient unexpected improvement of AV conduction: What is the mechanism?
},
       publisher = {Indian Pacing and Electrophysiology Group},
            year = {2006},
         journal = {Indian Pacing and Electrophysiology Journal},
           pages = {182--183},
             url = {http://cogprints.org/5238/},
        abstract = {This ECG was recorded from a 93 year old patient with a previously documented third degree AV block and an underlying LBBB. The twelve lead ECG demonstrates sinus bradycardia at a rate of 52 beats per minute, a PR interval  of 230 milliseconds, and a left bundle branch block (Figure 1).  In figure 2, a rhythm strip of leads V1, II and V5 shows sinus rhythm with AV block. Note that only P waves in the T wave of the paced beat are conducted.  The non-conducted P waves are followed by ventricular paced beats at an escape interval of 1200 milliseconds.  }
}

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