PMC6139209_01
Baseline EKG. Normal sinus rhythm with a short PR interval.
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Prior EKGs had been without abnormal findings (Figure 1). The patient's baseline EKG prior to his presentation showed a normal sinus rhythm with a PR interval of 152 msec (Figure 1).
EKG on admission shows coarse atrial fibrillation with a slow ventricular response. Whereas the tracings in the precordial leads to appear organized, the tracing in lead II suggests coarse atrial fibrillation.
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The initial EKG on admission revealed coarse atrial fibrillation with a ventricular rate of 60 beats per minute (Figure 2).
Profound PR prolongation.
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Additionally, on hospital day 2, telemetry monitoring and EKG revealed spontaneous conversion to normal sinus rhythm with a profoundly prolonged PR interval of 460 msec (Figure 3).